Line differential protection PSL 6603U Product guide - … · Line differential protection PSL...

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Line differential protection PSL 6603UProduct guide

4CAE000360

Line differential protection PSL 6603U

Product version: V1.00 Issued: May 2017

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Contents 1. Application ....................................................................................................................................................... 2 2. Available functions .......................................................................................................................................... 8 3. Starting component ....................................................................................................................................... 11 4. Differential protection .................................................................................................................................... 11 5. Distance protection ........................................................................................................................................ 13 6. Power swing blocking .................................................................................................................................... 16 7. Zero-sequence protection ............................................................................................................................. 16 8. Phase selection closing ................................................................................................................................. 17 9. Fuse failure protection ................................................................................................................................... 17 10. Pole discordance protection ...................................................................................................................... 17 11. Reclosing .................................................................................................................................................. 17 12. Voltage circuit monitoring .......................................................................................................................... 18 13. Current circuit monitoring .......................................................................................................................... 19 14. Circuit breaker position monitoring ............................................................................................................ 19 15. Controlling and measuring functions ......................................................................................................... 19 16. Station level communication ...................................................................................................................... 20 17. Clock synchronization ............................................................................................................................... 20 18. Other functions .......................................................................................................................................... 20 19. Inter-station communication ...................................................................................................................... 21 20. Hardware description ................................................................................................................................ 22 21. IED dimensions ......................................................................................................................................... 23 22. Wiring diagram .......................................................................................................................................... 24 23. Technical data ........................................................................................................................................... 32 24. Ordering .................................................................................................................................................... 44

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1. Application

PSL 6603U is designed for line differential protection of overhead lines and cables in the 220kV and higher directly grounding grid. It can be used for double-circuit lines, heavy load lines, weak infeed lines, short lines and long lines, and supports single circuit breaker and double circuit breaker configurations, with single-phase tripping and three-phase tripping.

It features line current differential operation as its main protection, with absolute selectivity, extremely high sensitivity and high operation speed. The current differential function operates based on a sudden change in current differential operation, current differential operation and zero-sequence current differential operation. It is phase segregated, allowing for single and three phase tripping. Differential communication is based on the G.703/G.703E1 standard.

PSL 6603U features distance protection as backup protection for the line differential protection, which is capable of quickly tripping the whole line, while having low requirements on inter-station communication. The three zone distance protection applies flexibly to all kinds of overhead lines and features a quadrilateral characteristic with load restriction, capable of covering extremely high transition resistance, while avoiding both steady state and transient state overreach. It is equipped with a power swing blocking function.

It has single- and three-phase reclosing functionality and switch onto fault protection, and reclosing is possible with a synchronization function.

Pilot communication supports communication through carrier channel or optical fiber, and both G.703 and G.703E1 protocols.

The device can record up to 1000 event records for convenient event analysis. With a complete self-supervision function, the health status of the device can be monitored.

Time synchronization is available, including PPS, PPM, IRIG-B and SNTP.

PSL 6603U supports the IEC 61850-8-1 MMS communication protocol.

The device can apply several wiring configurations:

Single circuit breaker wiring at both local and

remote sides, phase segregated tripping, voltage on

the line VT (A11)

Single circuit breaker wiring at both local and

remote sides, phase segregated tripping, voltage on

the busbar VT (A12)

Double circuit breaker wiring at local and remote

sides, phase segregated tripping (A2)

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Single circuit breaker wiring at local and remote sides, single-phase tripping, voltage on the line.

QB1 QB2

QA1

94

QB9

QC9

1 0

PTRC

79 0 1

RREC

25

RSYN

SC/VC

PSL 6603U – Single Breaker with phase segregated tripping and Line VT

MET UN

MMXU

21 Z <

PDIS

68 Zpsb

RPSB

67N

PTOC

87L

PDIF

51N

PTOC

51-VT

PTOC

51N-VT

PTOC

51SOTF

PSOF

MET

MMXU

I FL

RFLO

FL DR

RDRE

DR

52PD

RPLD

MET

MMXU

U

WA1

WA2

Bus-VT

Line-CT

Line-VT

VoltageSwitch

Figure 1: A11 Configuration diagram

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Single circuit breaker wiring at local and remote sides, single phase tripping, voltage on the busbar.

QB1 QB2

QA1

94

QB9

QC9

1 0

PTRC

79 0 1

RREC

25

RSYN

SC/VC

PSL 6603U – Single Breaker with phase segregated tripping and Busbar VT

MET UN

MMXU

21 Z <

PDIS

68 Zpsb

RPSB

67N

PTOC

87L

PDIF

51N

PTOC

51-VT

PTOC

51N-VT

PTOC

51SOTF

PSOF

MET

MMXU

I FL

RFLO

FL DR

RDRE

DR

52PD

RPLD

MET

MMXU

U

WA1

WA2

Bus-VT

Line-CT

Line-VT

VoltageSwitch


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Single circuit breaker wiring at local and remote sides, single-phase tripping.

QB1

WA1_QA1

94 1 0

PTRC

PSL 6603U – Dual Breaker with phase segregated tripping

MET I

MMXU

21 Z <

PDIS

68 Zpsb

RPSB

67N

PTOC

87L

PDIF

51N

PTOC

51-VT

PTOC

51N-VT

PTOC

FL

RFLO

FL DR

RDRE

DR

MET

MMXU

U

WA1

WA2

TIE-CT

WA1-CT

Line-VT

WA1_QB6

QB61

TIE_QA1

QB62

QB2

WA2_QA1

WA2-QB6

LINE1_QB9

LINE2_QB9

Σ


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Protection function configuration for single circuit breaker wiring

QB1 QB2

QA1

QB9

BUS B

BUS A

SC/VC

25

O->I

79

I->O

94

Z<

21

3I>

51

I0>

51N/67N

CLOSE

TRIPX

Id>

87L

Pilot communication

Figure 4: Single circuit breaker function configuration

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Protection function configuration for double circuit breaker wiring

CB1

BUS A

O->I

79

Z<

21

3I>

51

I0>

51N/67N

TRIP CB2

X

XCB2 O->I

79

TRIP CB1

Σ

CB2 Breaker Protection to Close

CB1 Breaker Protection to Close

Id>

87L

Pilot communication

Figure 5: Double circuit breaker function configuration

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2. Available functions

Table 1: Main protection

IEC61850 Description ANSI

PDIF Sudden change phase segregated current differential

protection 87L

PDIF Phase segregated current differential protection 87D

PDIF Zero-sequence differential protection 87N

Table 2: Backup protection


FastPDIS Fast distance protection 21D

PPPDIS Three-zone phase-to-phase distance protection 21P

PGPDIS Three-zone phase-to-ground distance protection 21G

ZerPTOC Definite time earth fault protection, two stages 51N/67N

InvTPTOC Inverse time earth fault protection 50N/51N

RecRREC Auto-reclosing 79

VTOCPTOC Fuse failure phase overcurrent protection 51-VT

VTZeOCPTOC Fuse failure zero-sequence overcurrent protection 51N-VT

AcZerPTOC Switch onto fault zero-sequence overcurrent protection 51-SOTF

PoDisPPDP Pole discordance protection 52PD

SwgRPSB Power swing blocking 68

RFLO Fault locating RFLO

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Table 3: Controlling and monitoring functions


LinMMXU Sampling and monitoring voltage, current channel

BinInGGIO Sampling and monitoring binary signals

WarGGIO Relay operation warn

DevAlmGGIO IED alarm operation

LinPTRC Tripping circuit breaker for fault isolation

EvtGGIO Protecting general event, recording and saving start reason,

name, time stamp, etc.

Fuse failure supervision

Current circuit supervision

CarPSCH Pilot communication channel supervision

IRIG-B clock synchronizing monitoring

SNTP clock synchronizing monitoring

IEC60870-5-103 communication monitoring

IEC 61850 communication monitoring

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Table 4: Communication


IEC 61850-8-1 IEC61850 communication protocol function

MMS MMS service

Table 5: Basic IED functions


SELFSUPEVLST Self-supervision information, list of disturbance, error and

etc.

TIMESYNCHGE

N

Time Synchronization, SNTP, IRIG-B and daylight saving

time function

TERMINALNAME IED identification

PRODVERINF Product version information

PRIMVAL Primary system values

Authority management

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3. Starting component

Because the protection starting component is used to start the disturbance recording function and to turn on the power supply used by the coil of tripping relay, it's necessary for the starting component to start reliably under any operation circumstances.

The starting component consists of the following elements:

Delta current starting component

The delta current starting component has high sensitivity and applies to imbalanced components during normal operation and during power swing.

Zero-sequence overcurrent starting component

In case the delta current starting component doesn’t operate, for example during high resistance faults, a zero-sequence overcurrent starting component will trigger for earth faults.

Static-stability break starting component

This element is used to detect power swing caused by static-stability disruption in the system under normal conditions. When the function of voltage transformer fuse failure or power swing blocking is disabled, this component is disabled automatically.

Weak-feed starting component

The weak-feed starting component has high sensitivity of detecting faults either when a high impedance ground fault is detected or under weak-feed operation.

TWJ starting component

The TWJ starting component is responsible for starting the reclosing function under unwanted tripping of the circuit breaker.

4. Differential protection

Line current differential protection is based on Kirchhoff’s first law. Because the differential equations are calculated phase wise, phase selection is implicitly available. The function is not influenced by power swing, load encroachment or voltage transformer fuse failure and can cover a high fault resistance.

The phase segregated line current differential protection consists of a general current differential relay and a current differential relay with capacitive current compensation, both of which include delta current differential, current differential and zero-sequence overcurrent differential protection components.

Capacitive current compensation

For long transmission lines with a high voltage, the capacitive current is rather large. To increase the sensibility of the differential relay, capacitive current compensation is required.

Conventional capacitive current compensation is only for that of steady state. During certain power system events such as no-load closing and external fault clearance, the capacitive current on the line can be very large. Steady-state compensation cannot work accurately in these cases, since the capacitive current magnitude changes quite rapidly. Therefore, the device includes a capacitive current compensation method based on a line distributed parameter model (applies to lines with shunt reactors), which provides accurate compensation for capacitive current in the differential circuit under any circumstances.

Delta current differential component

A differential component based on the sudden change of current is immune to load current and can improve the device's capability of covering fault resistance.

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Current differential component

The current differential component consists of two configurations of high and low settings, with ratio restraint characteristic to avoid the impact of CT errors and unbalanced currents.

Zero-sequence overcurrent differential component

The zero-sequence overcurrent differential component, which is enabled only for single or double phase grounded faults, calculates the zero-sequence differential current based on the calculated zero-sequence current (3I0) on the two sides. It has an extremely high sensitivity of detecting grounded faults and is immune to load current.

Current circuit failure discriminating element

When the current circuit fails, the selectivity of the line differential protection is affected. The device should be able to discriminate current circuit failure from other events, after which the settings of the differential protection shall be adjusted accordingly. A blocking function will be triggered according to a parameter setting.

CT saturation

To be able to operate for internal faults and to avoid the harm of CT saturation during external faults, the protection device can reliably detect CT saturation.

By checking the current direction at the fault inception point and by using a feature that measures the waveform distortion during CT saturation, the function will operate correctly even during CT saturation.

To deal with the issue of an external fault shifting into an internal fault after CT saturation, an instantaneous discriminating method is adopted for fast and reliable fault clearance, ensuring the operation of the differential protection.

Double-end fault locating

DRL66003U locates faults based on the values on both ends of the line, which is more accurate as single-ended fault location.

Data synchronization

DRL66003U applies an algorithm of combining the sampling time and sampling serial number, with the device on one side as the synchronizing end (master machine) and that on the other side as a reference end (slave machine). Information from the two ends is exchanged simultaneously. With a fixed sampling interval on the reference end, one frame of information is regularly sent to the opposite side. The settings of both master and slave machines are automatically determined by the protection device.

Communication channel status monitoring

In pilot current differential protection, reliability is the key factor affecting the protection performance, so it's necessary to monitor communication.

A cyclic redundancy check is performed for every frame of data and the wrong one is abandoned. When the number of wrong frames is larger as the setting value, a channel failure alarm is sent.

Communication operates at the same speed and a fixed number of frames are received every second; when the amount of lost frame is larger than the setting value, a channel interrupt alarm is sent.

The above index numbers are displayed for convenient channel monitoring.

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Communication clock

One of the key features of line current differential protection is data exchange between devices on two sides of the line. Synchronous mode is used for this communication. The clock for receiving time is synchronize to the received data flow, which is independent to the one for sending data. So bit slip caused by clock drift will never happen. The clock for sending data can be set in internal mode or in external mode.

Channel number

To increase the reliability of the communication, the protection device has a channel number detection function, which avoids differential protection maloperation caused by errors such as channel crossing and loopback.

Remote tripping and transmission

Optical fiber has an advantage of a high bandwidth, so not only analog signals, but also binary signals can be exchanged simultaneously. Some auxiliary functions, including remote tripping and remote transmission, can thereby be realized.

5. Distance protection

Fast distance protection

The device is equipped with two fast distance functions with different principles. When any of them operates, the fast distance protection is tripped. The fast distance function can quickly clear disturbances on the near end of a long line.

Waveform comparison-based fast distance

protection

For protection functions based on fundamental components, static state acyclic and harmonic components of the fault are filtered via an algorithm or filter. The longer the data window is, the better the filtering effect is, but the slower the operation speed becomes. The size and characteristic of transient harmonics differ a lot in various systems. In selecting the right algorithm, the measurement accuracy in the most demanding condition needs to be satisfied, which implies it is difficult to greatly accelerate the protection operation speed.

Fast distance protection of the device adopts a fast algorithm based on a waveform recognition principle, which can estimate the real-time noise level from the fault current waveform and adjust the operation threshold automatically, greatly accelerating the operation speed.

Sudden change distance protection

Per the superimposed principle of electric circuit theory, the short-circuit disturbance status can be split into pre-fault and post-fault status. The sudden change distance relay directly reflects the amplitude variation between these 2 states.

Distance protection

Per circuit configuration, distance protection consists of three phase-to-phase loops: Zbc, Zca, Zab, and three phase-to-ground loops: Za, Zb, Zc. Besides the three available zones available in the distance protection, each circuit has an auxiliary impedance component, thus resulting in a total of 24 measurement loops.

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In all-phase operation, all 24 loops are enabled simultaneously; in open phase operation, only the measurement loops of healthy phases are enabled. For example, only the Zbc, Zb and Zc loops are enabled when phase A is opened.

Phase-to-phase and phase-to-ground measurement loops mainly consist of an offset impedance component, a phase selector and a positive-sequence directional component, while the phase-to-ground distance relay also has zero-sequence component.

Offset impedance component

ZDΦZDΦ

ZDRR’

X

X’

R

IZDZ

IIZDZ

IIIZDZ

Figure 6: Offset impedance component characteristic

The offset impedance component is an impedance relay with a quadrilateral (polygon) characteristic, whose operation range is decided by the distance

impedance setting ZDZ , the resistance setting ZDR

and the line positive-sequence impedance angle ZDΦ . The resistance deviation threshold and reactance deviation threshold are formed automatically by the protection.

Non directional impedance auxiliary component

ZDΦZDΦ

ZDR

X

R

IIIZDZ

Figure 7: All-impedance auxiliary component

The operation range of the phase selector component with its non-directional characteristic is decided by the

impedance setting IIIZDZ , the distance resistance

setting ZDR and the line positive-sequence

impedance angle on the distance zone III ZDΦ .

The non-directional impedance auxiliary component is an auxiliary component used for detecting static-stability break, faulty phase selection and as a reset element, instead of being a zone criterion of protection.

Positive-sequence directional component

The positive-sequence directional component compares phases by checking positive-sequence voltage and circuit current. This ensures correct direction when an asymmetrical fault happens. However, when a symmetrical three phase fault happens, with a positive-sequence voltage of zero, the fault direction cannot be shown correctly. Thus, when all three phase voltages are low, memory voltage is used instead, fixing the direction and comparing phases with positive-sequence voltage after voltage recovery.

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Zero-sequence reactance component

During a phase to ground or double phase to ground fault on parallel lines, the phase to ground loop of the distance protection may cause overreach. To avoid this overreach, a zero-sequence reactance component is added to the phase-to-ground distance protection zone I and II.

Phase-to-ground distance

ZDΦZDΦ

ZDRR’

X

X’

R

IZDZ

IIZDZ

12°

25°

45°

F1 X0

F1

Figure 8: Phase-to-ground zone I and II characteristic

ZDΦZDΦ

ZDRR’

X

X’

R

IIIZDZ

25°

45°

F1

F1

Figure 9: Phase-to-ground zone III characteristic

The operation characteristic of the phase-to-ground zone I and II is shown in figure 8. The offset impedance zone I and II, the positive-sequence directional component F1 (area above dotted line in F1), and the zero-sequence reactance component X0 (area under dotted line X0 in the figure) compose jointly the operation area of the phase-to-ground zone I and II.

The operation characteristic of the phase-to-ground distance zone III is shown in figure 9.

Phase-to-phase distance

ZDΦZDΦ

ZDRR’

X

X’

R

IZDZ

IIZDZ

24°

25°

45°

F1

F1

Figure 10: Phase-to-phase distance characteristic, zone I, II

The operation characteristic of the phase-to-phase distance zone I and II is shown in figure 10. The phase-to-phase offset impedance zone I and II and the positive-sequence directional component F1 (area above dotted line in F1) jointly compose the operation area of the phase-to-phase distance zone I and II. The operation characteristic of the phase-to-phase distance zone III is like that of the phase-to-ground distance zone III, like shown in Figure 9.

Switch onto fault line protection

Switch onto fault protection consists of distance acceleration and zero-sequence acceleration. The acceleration pulses of both reclosing and manual closing are 200ms; acceleration function will be disabled 200ms after closing.

During auto-reclosing, the distance protection enables the acceleration impedance zone II and during manual closing the distance protection enables the acceleration impedance zone III. The closing acceleration time delay is automatically adapted to the waveform coefficient of the acceleration phase current; a short time delay for low harmonic content and a long time delay for high harmonic content.

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6. Power swing blocking

The power swing blocking component avoids unwanted operation and failure to operate of line distance protection under the following conditions:

No unwanted operation during power swing;

No unwanted operation during inverse fault of

power swing;

No unwanted operation during external fault of

power swing;

Reliable operation during internal fault of power

swing.

150ms after the sudden change component starts or after auxiliary zero-sequence current starts or if static-state break starts, power swing blocking is enabled. During power swing blocking, line distance and distance protection zone I and II is only enabled when the release power swing blocking component operates.

For lines where power swing never happens, power swing blocking can be disabled to accelerate the protection operation. The release power swing blocking component of the device adopts a sequence component method and swing impedance track radius detecting method; when either of them operates, the power swing blocking component is released. The former only works for asymmetrical faults and is disabled during open phase operation of line; the latter works for both all-phase and open phase operations.

Sequence component method

The distance protection is started when 0 2 1I I mI+ > .

This method starts protection according to the zero-sequence and negative-sequence components produced during asymmetrical fault. m is a reliability coefficient, which ensures no maloperation for external fault during power swing.

Swing impedance track radius detecting method

The track of the measured impedance through the impedance plane is a circle during power swing or when a fault happens through some fault resistance during power swing. The track changes from a circle to a point when a metallic fault happens. The impedance rate-of-change is internally related to the radius of the circle track. This method avoids operation during power swing by measuring the impedance track.

7. Zero-sequence protection

The device has zero-sequence overcurrent protection of two zones with a definite time limit and one zone with an inverse time limit.

Zone II and the zero-sequence inverse time protection are directional while it's optional for the zero-sequence zone III to be directional or not. When fuse failure occurs, the zero-sequence zone II protection is automatically disabled and both the zero-sequence inverse time protection and zero-sequence zone III protection become non-directional.

During open phase operation, the zero-sequence zone II protection and zero-sequence inverse time protection are disabled and only the zero-sequence zone III protection, automatically made non-directional, is kept as the backup protection for asymmetrical faults.

During reclosing acceleration, the zero-sequence zone II and III protection and zero-sequence inverse time protection are disabled and only the zero-sequence switch-onto-fault zone is enabled.

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8. Phase selection closing

The protection device combines a phase selector based on sudden change and sequence components. By using a composite of both currents and voltages for the sudden change phase selector, it guarantees sensitivity on the weak power side. During the transient period of a fault the sudden change phase selector is active, while the sequence component phase selector is put into use in the sub-transient and steady state period.

Current and voltage composite sudden change

phase-selector

The phase selector measures sudden changes of phase-to-phase voltage and phase-to-phase current. By comparing the acquired three composite sudden changes of phase-to-phase voltage and current, the fault loop can be determined.

Current sequence component phase-selector

The sequence component phase-selector defines three phase-selection zones according to the different phase relations among zero-sequence currents and negative-sequence currents: zone A, B and C.

30o

30o Rel

Iml

A

C

B

Figure 11: Current sequence component phase-selector

In zone A, it is phase-to-ground fault of phase A or

of phase-to-phase BC;

In zone B, it is phase-to-ground fault of phase B or

of phase-to-phase CA;

In zone C, it is phase-to-ground fault of phase C

or of phase-to-phase AB;

After the phase selection determines the zone of the fault, the impedance of the corresponding circuit can be used to distinguish between a single-phase fault and a phase-to-phase grounded fault.

9. Fuse failure protection

When fuse failure happens, the distance protection is disabled and the line may lack backup protection. Therefore the device enables overcurrent protection during fuse failure.

10. Pole discordance protection

When only one or two phases are tripped for a defined period, it is considered pole discrepancy. Pole discordance protection trips all three phases via a dedicated tripping relay.

11. Reclosing

It is possible to choose different modes of reclosing:

Single-phase reclosing: when a single-phase trip

is issued the function will issue a reclose command,

while no reclose will be issued after a multi-phase

disturbance.

Three-phase reclosing: when a three-phase trip is

issued, the function will issue a reclose command.

Inhibit reclosing: if the recloser discharges, block

the recloser of the IED, but do not trigger triple tripping.

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Disable reclosing: if the recloser discharges, block

the recloser of the IED and trigger triple tripping.

Triple tripping logic will drive four pairs of normally

closed contacts. The conditions for triggering triple

tripping are:

Recloser is in three-phase reclosing mode;

Recloser is in single-phase reclosing mode and

the spring is not charged;

Recloser is disabled;

Recloser is blocked;

Recloser is inhibited or the setting is wrong;

Device is not powered on.

If any of the above conditions is fulfilled, the four pairs of contacts on the output board of the recloser will close, connecting either the protection or the BDJ (IED output) of the other protection device to the trip coil.

Auto-reclosing

There are two modes for starting auto reclosing: protection tripping order start and circuit breaker position discrepancy.

Reclosing charging and discharging

To avoid unwanted reclosing, it is valid only after CB "charging" completely. In the reclosing logic of the device, a software counter is used to simulate the charging and discharging process of the reclosing.

Reclosing synchronizing / dead line check

The device consists of four modes for synchro-check and dead line check:

dead line check;

synchro-check;

auto-switch from dead line check to synchro-

check once carrying voltage ;

asynchronous (neither dead line check nor

synchro-check).

12. Voltage circuit monitoring

Fuse failure

During fuse failure, the pilot protection, distance protection and the static-state break starting component are disabled. And the directional components of zero-sequence overcurrent protection are all disabled. So zero-sequence overcurrent protection will operate without regard to these directions.

When the voltage returns to normal after fuse failure, the fuse failure indicator on the device is reset automatically, a "Fuse failure" return event is reported and all the blocked functions return to normal operation.

Tapped voltage fuse failure

When three-phase reclosing is enabled, reclosing is configured for synchro-check or dead line check, and the voltage used as the synchronizing voltage reports a fuse failure, "Synchron VT Failure" is indicated.

If reclosing is disabled or neither synchro-check nor dead line check is configured, the synchronizing voltage is not required to be connected and the device will not check if the synchronizing voltage is disconnected.

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13. Current circuit monitoring

CT reverse phase rotation

In the first 2 hours after the device is energized, the phase sequence of AC current is checked. When a inverse phase rotation is detected, a runtime error alarm is reported, but the protection is not blocked.

CT load asymmetry

When the maximum phase-to-phase current difference is greater than 50% of the maximum phase current and the maximum phase current is greater than 25% of the rated current, a runtime error alarm is sent with a time delay, but the protection is not blocked.

CT imbalance

When the zero-sequence current 3I0 is greater than the start setting value, an alarm is sent with a time delay and the zero-sequence current starting component is blocked.

14. Circuit breaker position monitoring

For single phase circuit-breakers, when the position of the three phases are different or when the circuit-breaker is at an open position but current can still be measured, an alarm is sent with a time delay.

15. Controlling and measuring functions

Analog signal sampling

The analog signal monitoring function applies to sampled currents and voltages. Their amplitudes and phase-angles will be displayed on the HMI. These sampled values can be used to verify that the instrument transformers (i.e. current transformer and voltage transformer) are operating properly and connected correctly.

The IED acquires data from current and voltage values with a sampling frequency of 1200 samples per second for 50Hz. Among all channels with valid voltages / currents, the one has the minimum channel ID will be chosen as the phase angle, with the fixed angle of 0.01°.

Binary signal indication

Binary signal indication is used to acquire and monitor the connected binary input status (BI).

The status of BI channels can be checked via the HMI.

Signal indicators

LED signal indicators display the working conditions of the device.

Event recording

It's crucial to acquire fast, complete and reliable disturbance information of the primary/secondary system, such as time tagged events during a disturbance, which can be used for short-term (such as fault recovery) and long-term (function analysis) objectives. Once any new recording is triggered, the event recorder will record the cause, identification and time stamp of the operation, and then store them in non-volatile memory.

At least 1000 latest event records can be stored, which can be retrieved later via the HMI.

Disturbance reporting

Disturbance reports will be formed and saved automatically in non-volatile memory when a binary signal triggers a recording or when there are fault location results.

The disturbance report will pop up automatically on the HMI after a disturbance, and can also be manually checked.

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A disturbance report records the operation start time, operation type, faulty phase, fault locating, tripped phase(s), the RMS value of the fault current / voltage, and so on.

At least 1000 latest disturbance reports can be stored in non-volatile memory, which can be retrieved later via the HMI.

Disturbance recording

A disturbance record is automatically formed after the protection starts or trips. After recording, the records will be automatically saved in non-volatile memory for later analysis.

The disturbance record will record the data of the 60ms before the recording starts and at least 200ms after the recording starts.

Local signal reset

After a disturbance, latching indicators such as tripping and reclosing LEDs are available.

A local reset operation can be realized via the HMI or by pressing the reset button on the IED panel directly.

Remote signal reset

After a disturbance, latching indicators such as tripping and reclosing LED are available.

A reset operation can be controlled on the IED or via the remote master station.

16. Station level communication

IEC 61850-8-1

The IEC 61850-8-1 MMS communication protocol is supported, in which MMS applies to communication between station control level and bay level.

The MMS service supports disturbance recording retrieval in the COMTRADE format.

The device supports a maximum of 16 simultaneously connected clients.

The device is equipped with 2 completely independent Ethernet ports for the MMS service, which have exactly the same function and can be configured to different station level networks.

IEC 60870-5-103

The IEC 60870-5-103 communication protocol is supported, providing two RS-485 ports and a RJ45 TCP/IP port. The communication rate of speed of RS-485 can be set according to requirement.

17. Clock synchronization

The device supports time synchronization through PPS, PPM, IRIG-B and SNTP, with an accuracy of 1ms.

Based on Ethernet: SNTP time synchronization

With time synchronizing wiring: PPS, PPM, IRIG-

B time synchronization

Time zone selection

The device supports UTC time zone selection. After selecting the time zone, the corresponding time will be added or subtracted from the reference time: for zero zone, time shift is 0; for UTC +1...+12 zone, time shift is +1...+12 on the reference time; for UTC -1...-12 zone, time shift is -1...-12 on the reference time.

18. Other functions

Binary input oscillation and debounce filter

To decrease binary signal input jitter and short-time disturbances, whenever a binary signal changes from 0 to 1 or from 1 to 0, the device will scan its position every 0.467ms. When the new status continuously satisfies the set time requirements, the binary signal will be counted as the new status of the binary signal.

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When the input voltage of binary signal is greater than 70% of the rated voltage, the operation of the binary signal is considered valid, set as 1; while if it's lower than 55%, it’s considered reset, set as 0.

Internal and self-supervision event list

The internal event list responds to different internal self-supervision modules. All internal events are saved in one internal event list.

The device periodically (and when energized) completely self-supervises the hardware/software, and will issue an alarm when an error is detected.

Human-machine interface (HMI)

The device includes a 5.7-inch color LCD touch screen, with a resolution of 320*240.

Figure 12: Color LCD

19. Inter-station communication

The PSL 6603U makes use of optical fiber communication, supports G.703 or G.703E1 communication protocols, and a redundant channel mode.

Figure 13: Single channel dedicated optical fiber communication

Figure 14: Double channel dedicated optical fiber communication

Figure 15: Single channel multiplex optical fiber communication

Figure 16: Double channel multiplex optical fiber communication

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Figure 17: Redundant channel of dedicated and multiplex optical fiber

20. Hardware description

Analog input module

The IED analog inputs connect the CT and VT secondary output current and voltage to the protection device, The CT secondary rated values are either 1A or 5A.

DC power supply module

The DC power supply module provides the required direct currents at different voltage levels required for normal IED operation. The power supply has an input voltage of either 110V or 220V DC.

Binary input module

The binary input module samples external binary output signals at 110V or 220V DC.

Binary output module

Potential free signals are made available by the device, for such as IED tripping and IED signals.

CPU module

The CPU module is the core component of the device, including the A/D circuit and the protection logic computation. In addition, the CPU module includes the optical fiber line communication port and provides an independent test port.

The protection device uses two CPU modules to improve the device's reliability. One of the CPU modules is used to start the output relay power supply while the other drives the tripping output; both have independent A/D sampling circuits and logic processing circuits.

HMI module

The HMI module is a human-machine dialog module, processing station level communication, the LCD interface display and the time synchronization function.

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21. IED dimensions

C=291.0mm

D=1

01.6

mm

A=1

77.0

mm

E=465.0mm

B=482.6mm

Figure 18: Case structure diagram

B=465.0mm

C=451.6mm

A=1

01.6

mm D=6.8mm

Figure 19: Case cut-out dimension diagram

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22. Wiring diagram

General IED wiring diagram

X1

Rx

t x

Rx

t x

X2 X3 X4 X5 X6 X7 X8 X9 X10 X11 X12 X13 X14

Figure 20: IED back panel layout diagram (dotted line for optional module)

Table 6: IED back panel module list

Slot No. Module code Module type Note

X1 AC Transformer input module Analog input

X2 CPU CPU

X3 CPU CPU

X4 MMI Human interface module

X5 DI Binary input module

X6 DI Binary input module

X7 SIGNAL Binary output for signal module

X8 TRIPA Binary output for tripping module


X10 TRIPB Binary output for tripping module With NC contacts


X12 NULL /

X13 LOGIC Binary input and output module Option

X14 POWER Power supply module

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Power module wiring diagram

INTERNAL FAILX141

3

X14

24

Power Fail 1

Power Fail 2

DC

X14

8 10Power Input

Power output

+ + + - + -Protective earth must be

connected

X14

5 6 X14

12

DC24V Output

Power Supply input

DC 220VDC 110V

Power supply module

Figure 21: Power module wiring diagram

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Analog input module wiring diagram

Transformer input module (TRM)

configuration

LINE_CT_IA

LINE_CT_IB

LINE_CT_IC

LINE_VT_UA

LINE_VT_UB

LINE_VT_UC

WA_VT_UX

Ch1 (I)

Ch2 (I)

Ch3 (I)

Ch4 (I)

Ch5 (U)

Ch6 (U)

Ch7 (U)

X11

*LINE_CT_I0

Ch8 (U)

23

45

67

8

9

10

11

12

13

16

ANALOG INPUT

RATED VOLTAGE 100V

RATED CURRENT 1A/5A

Figure 22: Analog input module wiring diagram

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Binary input module wiring diagram

BINARY INPUT MODULE (BIM)

Pilot protection enable

X5

NULL

NULL

NULL

NULL

NULL

NULL

AR disabled

Channel test button

Other protection operation

Receive A/receive

Receive B

NULL

Receive C

unlocking

Channel Alarm

NULL

NULL

NULL

BI1

BI2

BI3

BI4

BI5

BI6

BI7

BI8

BI9

BI10

BI11

BI12

BI13

BI14

BI15

BI16

BI17

BI18

BI19

BI20

X5/X6

1

2

3

4

5

6

7

8

9

1011

12

1415

16

17

18

19

20

2122

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+

+-

BI VOLTAGE

DC 110V/220V

CONFIGURATION

LINE_QA1_POSITION_A

LINE_QA1_POSITION_B

LINE_QA1_POSITION_C

Other block AR

NULL

NULL

NULL

NULL

NULL

NULL

NULL

NULL

NULL

NULL

NULL

NULL

NULL

NULL

NULL

NULL

X6

NULL

NULL

Figure 23: Binary input module wiring diagram

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Binary output module wiring diagram (TRIPA)

BINARY OUTPUT MODULE (BOM)-TRIPA

TR_A 1

X8X8/X9/X11374

58

2

CONFIGURATION

X9

TR_B 1

TR_C 1

TR_A 2

TR_B 2

TR_C 2

Protection Trip 1

Protection Trip 2

SINGLE PHASE TRIP

3 PHASE TRIP

Channel 1 alarm

TR_A 1

TR_B 1

TR_C 1

TR_A 2

TR_B 2

TR_C 2

TR_3P 1

TR_3P 2

Send a

Send B

Send C

X11

TR_A 1

TR_B 1

TR_C 1

TR_A 2

TR_B 2

TR_C 2

PD 1

PD 2

SINGLE PHASE TRIP

3 PHASE TRIP

Channel 2 alarm

9

6

1011

121

13

15

17

19

21

1416182022BO1

BO2

BO3

BO4BO5

BO6

BO7

BO8

BO9

BO10

BO11

Figure 24: TRIPA module wiring diagram

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Binary output module wiring diagram (TRIPB)

BINARY OUTPUT MODULE (BOM)-TRIPB

CLOSE 1

X10X10374

58

2

CONFIGURATION

NULL

NULL

CLOSE 2

NULL

NULL

CLOSE SIGNAL

SHUNT TRIPPING

SHUNT TRIPPING

SHUNT TRIPPING

SHUNT TRIPPING

9

6

1011

12

113

15

17

19

21

1416182022

BO1

BO2

BO3

BO4BO5

BO6

BO7

BO8

BO9

BO10

BO11

Figure 25: TRIPB module wiring diagram

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Binary output module wiring diagram (SIGNAL)

BINARY OUTPUT MODULE (BOM) - SIGNAL

ALARM

X7X7

275

310

1

CONFIGURATION

WARNING

TRIP 1

Channel alarm 1

SEND(FAST)

6

4

8

9

12

17

21

111622

BO1

BO2

BO3

BO4

BO5

BO6

BO7

BO8

BO9

RECLOSE 1

TRIP 2

RECLOSE 2

Channel alarm 2

Figure 26: SIGNAL module wiring diagram

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Human-machine dialog module wiring diagram (HMI)

SYN

HMI MODULE

GPS+

X4

GPS-

GPS_GND

RESET

REMOTE CONTROL ENABLE

PRINT LATEST EVEN

REPAIR

RS-485 port

1

RS-485 +

RS-485 -

RS-485 GND

RS-485 port

2

RS-485 +

RS-485 -

RS-485 GND

BI1

BI2

BI3

BI4

X4

1

3

5

6

8

9

10

13

14

15

16

18

17

2

GPS+

+

+

+

+

CONFIGURATION

GPS-

GPS_GND

RS485-EIA -1

RS485-EIA -2

DC24v -

ETHERNET 1

ETHERNET 2

ETHERNET 3

RS232-PRINT

Figure 27: HMI module wiring diagram

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23. Technical data

Analog input

Table 7: Rated value and limited value of IED AC module

Project Rated value Nominal value

Alternating current

Overload capability

Burden

Ir=1 or 5A

4 times the rated current, continuous operation

10 times the rated current, 16s permitted

10050 times the rated current, 1s permitted

≤ 0.5VA/phase (Ir＝5A)

≤ 0.3VA/phase (Ir＝1A)

(0.04…40)Ir

Alternating voltage

Overload capability

Burden

Phase voltage rated100 / 3 V

Synchronizing voltage rated100 / 3 V

1.4 times the rated voltage, continuous operation

2 times the rated voltage, 10s permitted

≤ 0.5VA/phase (rated voltage)

Phase voltage: 0.2 V…70V

Synchronizing voltage: 0.3 V…120V

Frequency 50Hz/60Hz ±5%

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Auxiliary DC power supply

Table 8: Rated value and limited value of IED power module

Project Rated value Nominal range

Auxiliary DC voltage

Un =DC 110V

Un =DC 220V

(80%...115%)Un

Burden

Operating: ≤ 40W

Tripping: ≤ 50W

Auxiliary DC power supply ripple coefficient

≤ 5%

Maximum de-energized time for auxiliary DC voltage without IED restart

100ms, U auxiliary

Binary input

Table 9: Binary input module (BIM)

Project Rated value Nominal value

Binary signal 20

Alternating voltage

Un=DC 110V

Un=DC 220V

Reliable operating voltage 154V DC

77V DC

Un=DC 220V

Un=DC 110V

Reliable non-operating voltage 121V DC

60.5V DC

Un=DC 220V

Un=DC 110V

Burden <0.3mW

<0.2mW

DC 220V

DC 110V

Binary signal resolution ≤1ms

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Binary output

Table 10: Binary output module (BOM)

Project Trip and signal relays

Binary signal 14

Maximum system voltage 250V AC, DC

Withstand voltage between contacts 1000V RMS for 1min

Between contact and coil 2000V RMS for 1min

Contact maximum permitted voltage 380V AC, 125V DC

Contact maximum permitted current 5A continuous

30A last for 200ms

AC rated capacity for disconnection (resistance load) 250V 8A single contact relay

250V 5A double contact relay

DC rated capacity for disconnection (resistance load) 0.15A, C220V, at L/R≤40ms

0.30A, C110V, at L/R≤40ms

Burden 300mW

Operation time Max 10ms

Reset time Max 5ms

Ambient conditions and test

Table 11: Ambient conditions

Parameter Reference value

Operation temperature range -25...+55ºC (continuous)

Short-time service temperature range -25…+70ºC(<16h)

Relative humidity <93%, no moisture condensation

Atmospheric pressure 66...110 kPa

Altitude Maximum 4000m

Transport and storage temperature range -25...+70ºC

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Table 12: Ambient test

Description Type test Reference standard

Cold test Operation 96 hours at -25ºC

96 hours at -40ºC

IEC 60068-2-1/ANSI

C37.90-2006 storage

Dry heat test Operation 16 hours at +55ºC

96 hours at +70ºC

IEC 60068-2-2/ANSI

C37.90-2006 Storage

Wet heat test Operation 240 hours at +40ºC, humidity 93%

6 loops at +25 … +55ºC, humidity 93 ... 95%

IEC 60068-2-78

IEC 60068-2-30 Loop

Table 13: Capsulation grade

Description Value

IED front panel IP 40

IED back panel, connecting terminal IP 20

HMI front panel and side IP 40

Type test

Table 14: EMC test

Description Type test value Reference standard

100kHz and 1MHz burst disturbance test

Common mode

Communication port

Other ports

Differential mode

Non-communication port

1kV

2.5kV

1kV

IEC 60255-22-1:2007

Electrostatic discharge test

Contact discharge

Air discharge

8 kV

15 kV

IEC 61000-4-2:2008

IEC 60255-22-2:2008

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Radio frequency interference tests

Transmission, common mode

Radiated, amplitude-modulated

10 V(EMF), f=0.15...80 MHz

10 V/m (RMS),

f=80…1000 MHz and f=1.4…2.7 GHz Dot frequency: 80, 160, 380, 450, 900, 1850, 2150MHz

IEC 61000-4-6:2009

IEC 60255-22-3:2007

Fast transient disturbance tests:

Communication port

Other ports

2 kV

4 kV

IEC 60255-22-4:2008

Surge immunity test

Communication port

Other ports

2 kV line to ground

4 kV line to ground, 2kV line to line

IEC 61000-4-5:2014

IEC 60255-22-5:2008

Power frequency (50 Hz) magnetic field

3s

Continuously

1000 A/m

100 A/m

IEC 61000-4-8:2009

Impulse magnetic field test 1000 A/m IEC 61000-4-9:2001

Damped swing magnetic field

≥ 2s + 10%

100 A/m

IEC 61000-4-10:2001

Power frequency immunity test

Common mode

Differential mode

RMS 300V

RMS 150V

IEC 60255-22-7:2003

Voltage sag and short interruption

Sag

Interruption

40%/200ms

70%/500ms

0…100ms: No restart

0...∞s: Behave normally at power off

IEC 60255-11:2008

IEC 61000-4-17:2009

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Electromagnetic launch test

Transmission, radio frequency, (main terminal)

0.15...0.50 MHz

0.5...30 MHz

Radiation, radio frequency, 230 MHz

230...1000 MHz

< 79 dB(µV) quasi peak < 66 dB(µV) mean value

< 73 dB(µV) quasi peak

< 60 dB(µV) mean value

< 50dB(µV/m) mean value, locate from 3m away

< 57dB(µV/m) mean value, locate from 3m away

IEC 60255-25:2000 CISPR22:2008

Table 15: Machinery test

Description Reference standard Requirement

Vibration response test (sine) IEC 60255-21-1:2007 level 1

Vibration durability test IEC 60255-21-1:2007 level 1

Impulse response test IEC 60255-21-2 level 1

Impulse resistance test IEC 60255-21-2 level 1

Crash test IEC 60255-21-2 level 1

Table 16: Electric insulation

Description Type test Reference standard

Medium test 2 kV, 50 Hz, 1 min

0.5 kV, 50 Hz, 1min, communication port

IEC 60255-27-2013

Impulse voltage high voltage withstand test

5kV, unipolar impulses, waveform: 1.2/50μs, source energy: 0.5J

1 kV, unipolar impulses, waveform: 1.2/50μs, source energy: 0.5J

IEC 60255-27-2013

Insulation resistance measurements

>100 MΩ, 500 V DC IEC 60255-27-2013

Table 17: CE compliance

Test project Test standard

Undervoltage control order EN 60255-27

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Test project Test standard

Electro-magnetic compatibility EN 61000-6-2:2005

EN 61000-6-4:2007+A1

EN 60255-26:2013

Table 18: Dimensions and weight

Project Value

Width 451.6 mm

Height 177 mm (4U)

Depth 291.0 mm

Weight <10 kg (4U)

Table 19: Communication protocol

Function Value

Protocol

Communication speed rate

IEC 61850-8-1

100BASE-FX

Protocol

Communication speed rate

IEC 60870-5-103

4800 - 38400 Bauds for RS 485

100BASE-FX for Ethernet RJ45

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Table 20: Ethernet communication port

Function Value

Port type RJ 45

Port amount 2

Communication standard 100BASE-FX

Communication speed rate 100Mbits/s

Communication distance <100m

Communication protocol IEC60870-5-103

IEC61850-8-1

Security level Isolation to ELV level

Table 21: Front Ethernet communication port

Function Value

Port type USB-B

Port amount 1

Communication standard 10BASE-TX




Table 22: Optical fiber Ethernet communication port (Option)

Function Value

Port type LC

Port amount 2

Communication standard 100BASE-FX


Optical fiber type Multi-mode Fiber

Sending power -23…-14dBm

Receiving sensitive power ≤-31dBm

Transmission distance ≤1.5km

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Function Value

Saturated optical power of the light receiver >-14dBm

Wavelength 1310nm

Optical fiber parameter 62.5/125μm, or 50/125μm (core DIA/cladding DIA)


Table 23: RS-485 communication port

Function Value

Port type RS-485

Port amount 2

Communication speed rate 4800…38400 Bauds

Communication distance <1000m at 4800bps

Connecting wire Screened twisted pair cable

Protocol IEC 60870-5-103


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Table 24: Printer communication port

Function Value

Port type RS-232

Port amount 1

Printing rate of speed 4800…38400bps


Table 25: Clock synchronization communication port

Function Value

Port type RS-485

Port amount 1


Synchronizing standard PPS, PPM, IRIG-B


Table 26: Longitudinal communication

Function Value

Optical fiber type Single mode

Light emitting diode Laser diode (LD)

Light receiver Pin Diode

Port amount 2

Port type FC-PC

Central wavelength <60km wavelength: 1310nm

<100km wavelength: 1550nm

Sending power <60km -9…-13dBm

<100km ≥-1dBm

Receive sensitive power ≤-36dBm

Saturated optical power of the light receiver >-3dBm

Communication distance <60km

<100km

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Table 27: Starting component

Project Value / Range Accuracy

Delta phase current setting 0.05…2.5A ≤±5% or ≤0.02Ir

Delta zero-sequence current setting

0.05…2.5A ≤±5% or ≤0.02Ir

Reset ratio ≤0.98

Table 28: Differential protection


Differential setting 0.01…2.0xIr ≤5%

Operation time ＜30ms

Table 29: Distance protection


Impedance zone amount 3 zones

Impedance setting 0.01…125Ω ≤5%

Conditions:

I = 0.1Ir…40Ir

U=0.1Un…1.2Un

Sensitive angle setting 55°…89°

Time delay setting 0.01s…10s ≤1%+40ms, distance zone II, III

Operation time (Distance zone I, 0.7 time the setting value) Operation time: ＜ 25ms, typical value: ≤ 20ms

Transient state overreach <5%

Reset ratio 105%

Table 30: Zero-sequence protection


Zone amount 2 zones

Zero-sequence current with definite time limit

0.05A…100A ≤±5% or ≤0.02Ir

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Definite time setting 0.01s…100s ≤ ±1% or ±40ms at I=1.2×Isetting

Inverse time characteristic IEC

NORMAL

≤5%+40ms at 2<I/Isetting<20

Zero-sequence current with inverse time setting

0.05A…100A ≤±5% or ≤0.02Ir

Inverse time setting 0.1s…10s ≤5% or +40ms

Table 31: Fuse failure overcurrent protection


Current setting 0.05A…100A ≤±5% or ≤0.02Ir

Zero-sequence current setting

0.05A…100A ≤±5% or ≤0.02Ir


Reset ratio 98%

Table 32: Pole discordance protection


Current setting 0.05A…2.5A ≤2.5%


Reset ratio 98%

Table 33: Reclosing


Time setting 0.01s…10s ≤ ±1% or ±40ms

Synchronizing angle setting 0°…90°

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24. Ordering

Pre-configuration

Table 34: Available functionality

Application ANSI Available

Communication scheme for differential protection 85-87L 1

DPFC distance protection DPFC 1

Phase-to-phase distance protection 21P 3

Phase-to-ground distance protection 21G 3

Directional zero sequence overcurrent protection 67N/51N 2

Time-delayed overcurrent protection during VT failure 51P-VT 1

Time-delayed zero sequence overcurrent protection during VT failure 51N-VT 1

Switch-onto-fault (SOTF) logic 51-SOTF 1

Support double CB application 1

Power swing blocking 68 1

Pole discrepancy detection element 52PD 1

Synchronism check 25 1

Auto-reclosing (single-pole and/or three-pole) 79 1

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Ordering code

Ordering code Product identification

Description PS CT

PSL6603U-21112311111 PSL 6603U English, CPU with single channel 60km FO, LC FO with PPS HMI module

DC110V 1A

PSL6603U-21212321111 PSL 6603U English CPU with single channel 60km FO, LC FO with PPS HMI module

DC220V 1A

PSL6603U-21122311111 PSL 6603U English CPU with single channel 60km FO, LC FO with PPS HMI module

DC110V 5A

PSL6603U-21221321111 PSL 6603U English, CPU with single channel 60km FO, LC FO with PPS HMI module

DC220V 5A

—ABB AB Grid Automation Products721 59 Västerås, SwedenPhone: +46 (0) 21 32 50 00

abb.com/protection-control

4C

AE

00

036

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© Copyright 2017 ABB. All rights reserved. Specifications subject to change without notice.

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