Dr. Zoran Gaji, ABB GA Products, 2016-11-24

SSR ProtectionUsing 670 Series

ABB GA Portfolio & Architecture

IEC 61850-8-1

IEC 61850-9-2

Frontend

MUSAMU

IED Configuration

System Configuration

670 seriesREB500

RTU560SYS600C

MicroSCADA Pro

RTU540

smallSCADA

DMS600

RTU540630 series 620 series

650 series

650 series

SAMU

615 series

Combiflex

RTU511

Maximum flexibility and performance670 series products

REB670 Low Impedance Busbar differential

REC670 Bay control

RED670 Multi terminal Line differential

REG670 Generator differential

REL670 Line distance

RER670 Railway protection

RES670 Phasor Measurement

RET670 Transformer differential

More than 120 000 IEDs of 670 Series sold world-wide

Maximum flexibility and performance670 series features

Common HW and Base SW (True platform concept)

Extensive function library according to IEC 61850

Extensive analog and binary I/O capability

Completely configurable to the most demanding applications

Built-in HMI Measurements, Apparatus Status

Control of up to 30 objects

Learn one product and you will know them all

I/O-modules in different Case Sizes670 series

Full 19 case with 12/24 analog inputs and up to 11 I/O modules

x 19 case with 12/24 analog inputs and up to 7 I/O modules

x 19 case with 12 analog inputs and up to 3 I/O modules

7I+5U

16*BI

24*BOExtensive I/O capability enables unique function integration

Communication capability of 670 IEDs

Communication alternatives:

OEM (TCP/IP, Ethernet)

IEC 61850-8-1 including PRP (Ed 2 or Ed 1)

DNP 3.0

SLM (Serial communication module)

LON

SPA or IEC 60870-5-103 or DNP3.0

RS485

DNP 3.0

LDCM (communication between two 670s)

IEEE/ANSI C37.94

G.703/G.703E1 optical to galvanic conversion

X21-modem connection

Direct Communication Capability Between Two IEDs

Max 3 km with LDCM

LDCM with direct fiber (multi mode) or via a Multiplexer Network

3Ph Current + 8 Binaryor

192 Binary Signals

Max 30/100 km with LDOM

LDOM with direct fiber (single mode)

3Ph Current + 8 Binaryor

192 Binary Signals

Exchange information between two remote locations.

Cyber security features

Prevents unauthorized access to IEDs via WAN

Cyber security support for compliance to NERC CIP and IEC 62351-8

Monitoring of user activities (logging)

Easy user access handling and administration

Role based activity control

Syslog reporting of security events

Secured communication (SSL encryption)

File transfer (supports RAW and encrypted FTP)

Real time clock synchronization facilityTime synchronization alternatives:

OEM (TCP/IP, Ethernet)

IEC 61850-8-1 / SNTP (1ms)

DNP 3.0

SLM (Serial communication module)

LON

SPA

DNP 3.0

RS485

DNP 3.0

GTM (GPS clock module)

IRIG-B

Electrical IRIG-B

Optical PPS

Binary input

670 Series Offering

Preconfigured

Prepared solutions for most common types of power plant applications

Customized

Fully open IED where everything shall be ordered and configured by the user

Complete Generator-Transformer Unit Protection

GI

U

CV GAPC

64R Re

T3W PDIF

87O 3Id/I

REG 670*1.2 C30

T2W PDIF

87T 3Id/I

ROV2 PTOV

59N 3Uo>

Generator and block transformer protection 24AI

NS2 PTOC

46 I2>

TR PTTR

49 Ith

SDD RFUF

60FL

SDD RFUF

60FL

ZMH PDIS

21 Z

OC4 PTOC

50/51 3I>

CC RBRF

50BF 3I> BF

GEN PDIF

87G 3Id/I+ RXTTE4

ROV2 PTOV

59N UN>

CC RBRF

50BF 3I> BF

OC4 PTOC

51/67 3I->

AEG GAPC

50AE U/I>

CV MMXU

Meter.

YY

YY

/U

PH PIOC

50 3I>>

CC RPLD

52PD PD

OC4 PTOC

51/67 3I>

Other functions available from the function library

CCS RDIF

87CT I2d/I

STTI PHIZ

64S RSE, f, I, U

Standard CTs and VTs used in Sweden for SSR

Standard CTs & VTs used for SSR IEDs

NPP Forsmark 3

CT has ratio of 40600 5

VT has ratio

400kV OHL in Stackbo

CT has ratio of 3000 1

VT has ratio 407

3:110

3

20,53

:110

3

SMAI HPAC filter - Function block

A three-phase filter capable to extract any frequency component (2-500Hz) from the connected CT and/or VT

Required Frequency to be extracted is entered as a parameter setting

Relatively long filtering windows are used (setting) in order to achieve good accuracy and frequency resolution

Required signal is filtered out from all three phases individually

Values are updated in real time with settable rate of update (e.g. 256ms)

SMAI HPAC filter - Output

Note that filter will deliver the following information after every calculation about the extracted quantity

Phasor (primary magnitude and the phase angle) at the set frequency is reported

Estimated Frequency of the phasor is also reported When no clear magnitude peak exist in the set pass frequency

band the filter will return zero values for the phasor magnitude and angle while the signal frequency will be given value of minus one.

Up to six such filters can be included in a single 670 IED

Speed of Measurement from built-in DR

With such settings new filter output is available

every 1024/4=256 samples or 256ms in

50Hz system.

Filter is connected further to standard 50/60Hz protection functions which then provide pickup and required time delays.

The following functions from REG670 library can be used

Over- or under-current protection function

Over- or under-voltage protection function

Over- or under-power protection function

Over- or under-frequency protection function

Multi-purpose protection function

Measurement functions: SSR I, U & F values can be shown on built-in HMI or send to any control system via several communication links

SSR quantities can also be recorded by internal DR in the IED(over limited period of time e.g. 10s at the time)

Filter gives SSR phasors, but what about Protection?

Standard IDMT 50Hz over-

current function

OCTRIPSignal

Preprocessing Block

Standard IED Configuration for 50Hz OC protection

670 Configuration for SSR OC Protection

SMAI HPAC extracts phasors of thepre-set frequency (e.g. 30,0Hz)

SMAI HPAC filter

Standard IDMT over-current

function will now operate at set

SSR frequency

SSRTRIPSignal

Preprocessing Block

Programmable Inverse Curve (IDMT)

Actual IDMT Curve in the REG670

[ ][ ]

35566_ 0.64

SSR

A st Theory s

I A

= +

in>=299A; A=35566/299; B=0.64; C=0.0; p=1.0; k=1.0

tMin = 1.4s

0 2.5 103 5 103 7.5 103 1 104 1.25 104 1.5 104 1.75 104 2 1040

20

40

60

80

ABBTheoretical

SSR Current [A Primary]

[sec

onds

]

Curve from SSO Westinghouse

Relay

Actual Implementation for F3-SSR in REG670

GFilter #1USUP_2

Filter #2USUB_2

Filter #3USUP_3

Filter #4USUB_3

IDMTta = f(USUP-2)

> SET_PICKUP

IDMTta = f(USUP-3)

> SET_PICKUP

&

&

OR

Filter #5ISUB

Filter #6ISUP

TRIP

USUP_2

USUP_3

VT

CT

U

I

ALARM

ALARM

> SET_PICKUP

> SET_PICKUP

ISUB

ISUP

USUB_2

USUB_3

SSR RELAY

Swedish SSR experience:

Use SSR sub- & super-synchronous voltages at generator terminals

Use SSR sub-synchronous current in the transmission network

Tailor made SSR ProtectionScheme in F3

SSR Panel for NPP F3

1) For SSR protection use 670 IED Version 2.0 or latter

2) MicroSCADA Hystorianused for logging of all relevant SSR data and other generator measurements onto a PC hard disc. More than one year of data can be stored. Data stored once every 2s. Data logged over IEC61850. Trending feature is available.

One of REG670 displays in F3

Possible Applications of the Filter

Sub-synchronous resonance protection for turbo generators

Sub-synchronous protection for wind turbines / wind farms

Detection of SS oscillation between HVDC links and synch. generator

Detection of presence of GIC (geomagnetic induced currents)

Sensitive open phase detection for NPP

Overcurrent or overvoltage protection at specific frequency harmonics, sub-harmonics, inter harmonics

Presence of special railway frequencies (e.g. 16.7Hz or 25Hz) in the three-phase power system

Sensitive reverse power protection

Rotor Vibration

Shaft over-current protection (MSc thesis work during Q1 2015 )

etc.

Questions

http://www.google.se/url?sa=i&rct=j&q=&esrc=s&frm=1&source=images&cd=&cad=rja&uact=8&docid=LGB7BfZW6r1KjM&tbnid=pQCmMdAhaoK4kM:&ved=0CAUQjRw&url=http://www.kingletas.com/2013