Rel670 distance def

SITE INSPECTION AND TEST RECORD abb Description:

FPFM1-REL670- DISTANCE&DEF RELAY Contract no.:

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SRR-3012-REL670 DIST&DEF

FEEDER/BAY: OHL -

1 GENERAL DATA AND INFORMATION: Designation No. : + Rated Current : 1.0 A. Manufacturer : ABB Sweden Rated Voltage : 110-220 VAC Type No. : REL670Ver.3 Rated Freq. : 60 HZ Serial No. : Aux. Voltage : 90-250 VDC Order No. : 2026866 -390 Software Ver.: 2P3r15 Comm. Scheme : PERMISSIVE opto-coupler supply: 48-250 VDC

2 MECHANICAL CHECK AND VISUAL INSPECTION: Item Description Checked

1 Inspection for physical damage / defects. 2 Verify connections as per approved drawing. 3 Check tightness of all connections 4 Check ferrules 5 Check apparatus list

3 ELECTRICAL TEST:

3.1 Function Test:

Item Description Checked1 Human Machine Interface (HMI) checked. 2 Test switch checked for correct function. 3 Case earthing checked. 4 Indications checked. 5 Alarm contacts checked. 6 Trip contacts checked. 7 Reset of indications checked.

3.2 Operating DC supply current: DC voltage

(V) DC current w/o fault

(mA) DC current with fault(mA)

Max. calculated watt

(W)

Limit: DC burden 50 watts typically. (Refer to Buyer ’s Guide manual page 24).



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3.3 Setting Adopted: Refer enclosed setting printout

3.4 Secondary Injection Tests:

3.4.1 Distance Protection:

3.4.1.1 Zone Reach Measurements: Item Description Checked

1 Print out from Freja attached. PH-E (PE): -Resistive reach: RFn (Ω/loop) = RFn (Ω/loop)*Mf -Reactive reach: Xn (Ω/loop) = Xn (Ω/phase) + XNn (Ω/phase), XNn = KNx* Xn (Ω/phase), KNx= 1/ 3 ((X0 – X1)/ X1) S0: Xn (Ω/loop) = 1/ 3 (2 * Xn (Ω/phase) + X0n (Ω/phase)*Mf. PH-PH (PP&3PH): -Resistive reach: RFn (Ω/phase) = 1/ 2 RFn (Ω/loop)*Mf. - Reactive reach: Xn (Ω/phase) = Xn (Ω/phase)*Mf. RFn: Zone n resistive reach resistance. Xn: zone n positive sequence reactance. XNn: zone n earth returns reactance. KNx: reactive compensation factor. X0n: zone n zero sequence reactance. X0: line zero sequence reactance. X1: line positive sequence reactance. Mf: CTR/VTR.

3.4.1.2 Zone Timing Test: Item Description Checked

1 Print out from Freja attached. Limit: 24 ms typically ± 10ms ± 0.5 %. ( Refer to reference Tec. Manual page : 113 table 66 ) The relay is tested on final setting



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3.4.2 Phase Selection Function (PHS):

3.4.2.1. PHS Reach measurements: Item Description Checked

1 Print out from Freja attached. PH-E (PE): -Resistive reach: RLdfwphs (Ω/loop) = RLdfwphs (Ω/loop)*Mf.&RFrvphs(Ω/loop)= RFrvphs(Ω/loop)*Mf -Reactive reach: X1phs (Ω/loop) = 1/ 3 (2 * X1phs (Ω/phase) + X0phs (Ω/phase)*Mf. PH-PH (PP): -Resistive reach: RFphs (Ω/phase) = 1/ 2 RFphs (Ω/loop)*Mf. - Reactive reach: X1phs (Ω/phase) = X1phs (Ω/phase)*Mf. 3PH: -Resistive reach: RFphs (Ω/phase) = 0.666 RFphs (Ω/phase)*Mf - Reactive reach: X1phs (Ω/phase) = 1.333 * X1phs (Ω/phase)*Mf. 3.4.2.2. PHS timing test:

Item Description Checked1 Print out from Freja attached.

3.4.3 Power Swing Detection (PSD):

3.4.3.1 PSD Reach test Measurement:

Item Description Checked1 Print out from Freja attached.

3.4.3.2 Timing Test:

3.4.3.2.1 CHECK THE BLOCKING TIME (t R2):

SETTING VALUE MEASURED VALUE

2.00 SEC. Limit: 0.5 % ± 10 ms (see the tech. ref. manual page 226 table 112 ). - FREJA GENERAL MODE -1ST STAGE: 3PHASE V&I (I=Ir, V/I >outer zone setting impedance). -2ND STAGE: 3PHASE V&I (I=Ir, V/I <inner zone setting impedance). -3RD STAGE TAKE du/dt = 0.2 v/sec. -PSD start contact to dual timer. The relay is tested on final setting



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3.4.3.2.2 CHECK THE OPERATING TIME (TP1):

Type of fault

Tp1 actual m.sec

Tp1 setting

m sec 3 phase 45

-Freja general mode, sequence, 3 stages. -1ST STAGE: 3phase V&I to get the impedance outside the outer zone area (I=Ir & V/I>Zouter and T =1 SEC).

-2ND STAGE: 3phase V&I to get the impedance between the outer and the inner zone area (I=Ir, V/I<Zouter, V/I >Zinner and adjust the time; start with 30 msec; till you get PSD start). -3RD STAGE: 3phase V&I to get the impedance inside zone1 (I=Ir & V/I<Zzone1 and T =0.1 SEC).

3.4.3.3 Check of the blocking function:

Item Description Checked1 Blocking of zone 1, 2 & 3

* Test procedure: SAME AS BEFOR ONLY CHANGE THE TIME FOR 3RD STAGE TO BE LESS THAN 1 SEC.

3.4.3.4 Check of the relay tripping during power swing if a single phase faults Occurred [ ]

* Test procedure: SAME AS BEFOR ONLY CHANGE THE 3RD STAGE TIME TO 200 msec AND THE 4RD STAGE TO SINGLE PHASE FAULT.

3.4.4. CURRENT SENSITIVITY TEST: Ir = 1.0 A IB=3000A PHASE Setting (A) Z(Ω) EXPECTED(A) PICK UP (A)

PHS IMinOp

PHS IMinOp

Z n n=1,2,3,5

PHS Z1 Z2 Z3 Z5FW FW FW STND

R 10%IB Z≤Zn 0.1 0.1

Y 10%IB Z≤Zn 0.1 0.1 B 10%IB Z≤Zn 0.1 0.1

RY 20%IB Z≤Zn 0.2 0.2 YB 20%IB Z≤Zn 0.2 0.2 BR 20%IB Z≤Zn 0.2 0.2

RYB 20%IB Z≤Zn 0.2 0.2

IMinOp: zone n min. operating current. IB:base current Limit PHS Imin : 1 % of Ir ( Refer to reference Tec. Manual page : 174 table 87 The relay is tested on final setting



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RV ND

RV ND

3.4.5. Directional test:

Line characteristic angle: Relay directional angles: ArgDir (15) and ArgNegRes (115) a) –forward direction; the operating chs Area from: to: b) –reverse direction; the operating chs Area from: to: c) – the non directional area from: to: and from to:

* Test procedure: -APPLY SINGLE PHASE V & I UNDER PHS SETTING. - CHANGE THE VOLTAGE ANGLE FROM 0 DEGREE UP TO 360 DEGREE UNTIL THE INDICATION OF FW, REVESE AND NON DIRECTIONAL APPEARS AS PER SETTING APPLIED.

3.4.6. Scheme Communication Test:

Scheme selected: Permissive under reach. Coordination time : 50 ms.

3.4.6.1. carrier receive + Zone 2 fault Trip Time : Indication :

3.4.6.2. No carrier receive + Zone 2 fault 3.4.6.3. Trip Time :

Indication : 3.4.6.4. Zone 1 fault

Indication : Carrier send time: ms. T send min. : ms (100 ms setting) * To check the T send min. time; the injection time should be less than 100ms. Limit: ± 10 ms for operating time (see the tech. ref. manual page 122). 3.4.7 Dead Line Detection Function (DLD): (used for SOTF internal detection)

Phase Setting Measured Values

U<(V) I<(A) U<(V) I<(A) A 40%(26.56) 20%(0.2) B 40%(26.56) 20%(0.2) C 40%(26.56) 20%(0.2)

Limit: ± 1 % of Ur for U< and ± 1 % of Ir (see the tech. ref. manual page 242 table 125 ). Testing guidelines: refer to the function logic and the commissioning manual page 95. TEST PROCEDURE:

- APPLY 3 PHASE V & I AT HEALTHY CASE ON GENERAL MODE. - DECREASE ONE PHASE VOLTAGE UNTILL THE DLDUL INDICATION APPEARS. - DECREASE ONE PHASE CURRENT UNTILL THE DLDIL INDICATION APPEARS.

345O

165O

115O

295O

0O

90O

180O

270O

FWND



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3.4.8 Automatic Switch on to Fault (SFV ): Distance Protection indications SOTF - ON Trip Time (msec)

* Actifed automatically by using UI level

Actifed by breaker close ( close pulse )

*Make at setting autolnit ( on ) . Testing guidelines: refer to the function logic and the commissioning manual page 140.

3.4.9 Fuse failure supervision function (FUSE): Setting Measured Values

3U0>(V) 3I0<(A) 3U0>(V) 3I0<(A) 10% (6.67) 10% (0.1)

3U0= Ua + Ub + Uc = 3I0= Ia + Ib + Ic = Limit: ± 1 % of Ur for 3U0> and ± 1 % of Ir (see the tech. ref. manual page 468 table 256 ). Testing guidelines: refer to the function logic and the commissioning manual page 185 . GENERAL MODE -1ST STAGE: 3PHASE V&I HEALTHY CASE. - DECREASE ONE PHASE VOLTAGE TILL THE INDICAION LED FUSE FAIL APPERAS. - DECREASE THE SAME PHASE CURRENT TILL THE INDICTION LED FUSE FAIL RESET.

3.4.9.1 Fuse failure operating time: m sec. -1ST STAGE: 3PHASE V&I HEALTHY CASE.

-2ND STAGE: PUT FUSE FAIL CONDITION (TAKE CONTACT FUSE FAIL)

3.4.9.2 Check the blocking of the relay when the general block functions (VT MCB TRIP) is activated [ ]. 3.4.9.3 Check the latching facility of fuse fail function [ ]. 3.4.9.4 V.T supervision lathing time = sec. * General mode: - 1ST STAGE: 3PHASES V&I HEALTHY CASE. (TAKE TIME 1 SEC) -2ND STAGE: PUT 3 PHASE (V) TO ACHIVE THE DLD AND FUSE FAIL FOR MORE THAN 5 SEC. -USE CONTACT FUSE -VTF3PH. 3.4.9.5 Check the relay operation if a fault occurred during the fuse fail [ ]. * General mode: - 1ST STAGE: FUSE FAIL CONDITION (TAKE TIME 1 SEC) -2ND STAGE: FAULT CONDITION



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3.4.10. Service values for measurements: PH voltage applied: 66.4 V. PH current applied: 1.0 A. Phase shift : 0,240,120 degree. Frequency : 60 HZ. CT ratio : 3000/1 A. VT ratio : 380/0.115 KV.

Values Sec. Values Prim. values Values Sec. Values Prim. Values U1 I1 U2 I2 U3 I3 U4 I4

U1 – U2 - P - U2 – U3 - Q - U3 – U1 - F -

3.4.11. Trip indication test: No. Type of fault Indication Led Color 01 Zm1 , single phase L1 02 Zm1 , duple phase L 2 & L3 03 Zm1 , three phase 04 Zm2 , single phase L2 05 Zm2 , duple phase L 1 & L3 06 Zm2 , three phase 07 Zm2 , single phase L3 with CR 08 Zm3 , single phase L3 09 Zm3 , duple phase L 1& L2 10 Zm3 , three phase 11 Zm5 , single phase 12 Zm5 , duple phase 13 Zm5 , three phase 14 Zm2 , single phase L2 with BC 15 Zm2 , single phase L2 with DLD 16 Power swing condition 17 DLD on current input 18 DLD on voltage input

3.4.12 Disturbance recorder checked [ ]. 3.4.13 Binary outputs checked [ ]. 3.4.14 Binary inputs checked [ ].



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3-5 DIRECTIONAL EARTH FAULT TEST (DEF) 3.5.1 3I0 PICKUP AND DROP OFF LEVEL :( at 2*3UO) a) 3 UO has a setting of 1% of phase to neutral voltage. b) The relay characteristic angle has setting of 60 degree.

Pick-up Drop-off

Value (A) Value (A) Indication

0.05 X Ir =0.05 A 60o

0.20 x Ir =0.20 A 60o

0.35 X Ir =0.35 A 60o

Setting In Angle

Limit : setting ≤ Ir ± 1 % of Ir setting ( 2.5 – 10 m A ) 0.5 m A setting ( 10 – 50 m A ) 1.0 m A refer to the function logic and the commissioning manual page 304 table : 156 use the general start contact to monitor the pick up and drop off values (U11.115.X21:7, 9).

3.5.2 Check the operating characteristic angle: A- Forward direction: from to . B-Reverse direction: from to . (For directional check use the contacts -STFW & -STRV; U11.115.X21:1, 2 & 1, 5)



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3.5.3 POLARIZING VOLTAGE (3U0) PICKUP AND DROP OFF TEST: Set Is=3Io = 0.2 A

3U0 setting Operating values at 2* Is1 % of Uph (volts) Angle Pick up Volts Drop off Volts Indication

0.66 V 60o

f) CHANNEL SEND & START REVERSE FUNCTIONS:

Contact Contact Oper t ime

(channel send) Indication (start reverse) IndicationU11.101:2B U11.115.X131:7

U11.101:12B U11.115.X131:8

U11.101:2B U11.115.X131:7

U11.101:12B U11.115.X131:8Reverse fault(B.S)

Forward fault(P.S)

Fault Oper t ime

Note: P.S=permissive scheme and B.S=blocking scheme. 3.5.4 CHANEL DELAY TIME To ‘T coordination’: (Permissive scheme). Energize: forward fault with Channel Receive input IDIR= 0.2A, Injected = 2xIDIR

To set Operating time Contact Indication(ms) ms

0 mSec U11.101:22B

50 mSec U11.101:12B - Actual time = T set + T start ± 10 ms ± 0.5 %. - T start = operated time start function typically 150ms at 0 to 2Iset - See the technical reference manual–page: 304 , 305 table 156 3.5.5 BACK UP TIME ‘T dif’: (Permissive scheme) Energize: forward fault without Channel Receive input IN dir= 0.2A, Injected = 2xINdir

Tdif set Operating time Contact Indicationms ms0

400 U11.101:12B1000 U11.101:10B3000

- T start = operated time start function typically 150ms at 0 to 2Iset .. - Timer accuracy.=±10ms±0.5%,Actual time=Tset+Tstart±10ms±0.5%, - See the ; technical reference manual–page:304 -305 table 156



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3.5.6 WEAK END INFEED ECHO: WEI ECHO = ON a. Apply momentary pulse to Channel Receive Input (U11.101:11B): ___________ Without any fault injection and check Channel send is given.

Channel Send operating time: _________________

Channel sends pulse length : ________________ (<200ms)

Indications : ________________

b. Apply a reverse fault with CR and check that no channel Send is given : __________________ 3.5.7 WEAK END INFEED TRIP:

WEI TRIP = ON a. Apply momentary pulse to Channel Receive Input (U11.101:11B) and check trip is given when 3I0 is zero and 3U0 is above the following values.

S.NO. Us Us Us Disturbance Recorder set cal (V) meas (V)

1 0.05 x Uph 3.32

2 0.20 x Uph 13.28

3 0.35 x Uph 23.24

* Voltage accuracy: ± 1 % of Ur (see tech. ref. manual page 648 table 342 )

Measured Trip time = ________________ms - (time accuracy ± 0.5% ± 10 msec). - See the ; technical reference manual–page: 648 table 342

b. Apply a reverse fault with CR and check for the above condition that no WEI trip is given. : ___________ 3.5.8 CURRENT REVERSAL LOGIC CHECK: Curr. Rev = ON a) Apply a reverse fault to check: t pick up (I > I setting and V > V setting and with 240 degree phase shift) T pick up:

T pick up Operating time Contact Disturbance Recorder(ms) ms

0 mSec U11.115.X151:13

20 mSec U11.115.X151:14



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3. 5. 9 Harmonic current check . - Check the 2 nd harmonic blocking ( ) Expected value ( 20 % ) 3. 5. 10 FINAL SETTINGS: IN DIR = ________________________ Amps To = _________________________ ms. Tdef. = _________________________ ms. IREV: , T pick up = ms and T delay = ms. WEI Echo : ______________ WEI Trip : , Us = volt. MEASURED VALUES: Operating value, Forward (60o) = ___________________Amps

Reverse (240o) = ___________________Amps

Trip time with Channel Receive = ___________________ms

Trip time without Channel Receive = ___________________ms. Current reversal logic function: Pick up time = ___________________ms. Delay time = ___________________m

Rel670 distance def

Engineering

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