SOLKOR-N (7SR18) Feeder Differential Protection Hope/12-3 SolkorN7SR18... · Make the ight choice ! Choose R EYROLLE Protection SOLKOR-N (7SR18) Feeder Differential Protection

Make the ight choice !

Choose EYROLLE Protection R

SOLKOR-N (7SR18)Feeder Differential Protection

2

REYROLLEMake the ight choice !


O

B

3

1

1

B

O3

1

1

SUMMATION

TRANSFORMER

SUMMATION

TRANSFORMER

O - Operating Coil

B - Bias Coil

CLASSIFICATION OF UNIT TYPE PROTECTION Summation Transformer, Circulating Current Protection

3



The Solkor history of feeder differential relays Solkor A - 1942 Pilot wire differential using voltage balance

Solkor B - 1948 Pilot wire voltage balance

Solkor R - 1963 Half wave current balance

Overall Solkor - 1965 Current balance for transformer feeder circuits.

Solkor Rf – 1982 Full wave current balance

Solkor M - 1993 Digital with Vf signalling

Solkor N 7SG18 - 2001 Numerical Phase Segregated Differential

Solkor N 7SR18- 2016 Numerical Phase Segregated Differential !!! new

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The new Solkor N (7SR18) … why ?? Sourcing digital components for 15 year old design becoming difficult and

costly.

Completion of the Compact relay range

Better performance on modern hardware

Additional market requirements

Directional backup OC & EF

Communication flexibility (DNP3.0, IEC103, Modbus and IEC 61850 edition 2)

Optional logic programmability – Reylogic /Quicklogic

User configurable LEDs and Function keys

Front USB communication port

Increased switch from copper pilot wire to fibre optic

A lower cost fibre optic feeder differential protection ??

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The Compact Range

More functionality …..Lower cost ..Easy to use …with IEC61850 option

Argus-C 7SR1/12

Feeder protection

Capa 7SR191

Capacitor protection

7SR158

Mains monitoringprotection

With ROCOF and vector shift

7SR157

Synch check relay

Rho-C

7SR17

Motor protection

And don’t forget …

Duobias 7SR24 transformer protection Solkor

7SG18 feeder differential protection

All with the same easy to use menu structure and PC setting and analysis software

Solkor 7SR18 feeder differential protection

NEW !

Argus

7SR45

Self powered OCEF

Solkor R/Rf 7PG21 pilot wire differential protection

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7SR1 Series - Relay Applications

RHO-C

7SR1702/3

7SR1705/6

M

MOTOR

ARGUS-C

7SR1103

TRANSFORMER

CAPA

7SR191

CAP BANK / FILTER

ARGUS-C

7SR1103-3

OVERHEAD LINE

ARGUS-C

7SR1102/3

CABLE FEEDER

SOLKOR

7SR18, 7SG18, 7PG21

INTERCONNECTOR

BUS SECTION / COUPLER

ARGUS-C

7SR1102

SOLKOR

7SR18, 7SG18, 7PG21

INTERCONNECTORDUOBIAS

7SR243

ARGUS-C

7SR1102

ARGUS-C

7SR1102/3

7SR1205/6

ESKOM

ESKOM

SUB-B

SUB-C

SUB-D

TRANSFORMER

INCOMER

ARGUS-C

7SR1205/6

G

GEN FARM

G G

ARGUS-C

Synch Chk

7SR157

ARGUS-C

Mains

7SR158

SUB-A

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Familiar Operation for all

relaysSame free PC configuration software for all relays

Same wiring interface

Same menu structure on the relay

USB front port

Withdrawable

All models in size E4 / E6 case

Ethernet comms option - IEC61850

RS485 comms – IEC103 / Modbus RTU / DNP3.0

1000 events

10 fault records

Waveform recorder

Metering

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Solkor N 7SR18 – protection function

87L 3-Phase differential and high set (2 stages)

85 Inter-Trip (6 channels)

50 Instantaneous phase fault overcurrent

50G/50N Instantaneous earth fault

51 Time delayed phase fault overcurrent

51G/51N Time delayed earth fault

37 Undercurrent

46NPS Negative phase sequence overcurrent

49 Thermal overload

50BF Circuit breaker fail

46BC Broken conductor/load unbalance

60CTS-I CT Supervision

74T&C Trip & Close circuit supervision

51c Cold load pickup

81HBL2 Inrush Detector

60CTS CT Supervision

60 VTS VT supervision

67/50, 67/51 Directional overcurrent

67 G/N Directional Earth Fault

79 Auto-Reclose

CT Ratio Matching

Communication link Supervision

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Differential Protection Differential setting

Protection sensitivity

First bias slope

Accommodates measuring

errors

Second bias slope

Accommodates CT saturation

Bias break point

Set beneath point at which

saturation would occur

Differential high set should be stable

for

Maximum through fault current

CT saturation on one side only

Peak magnetizing inrush

1 2 3 4 5 6 7 8 9 10 11 12 13 14

1

2

3

4

5

6

Restraint (x Is)

Diffe

ren

tia

l T

hre

sh

old

(x

Is)

Is

Stable Zone

Trip Zone

Phase Fault Bias Slope 1 (S1)

Phase F

ault Bia

s Slo

pe 2 (S

2)

Bia

s B

rea

kp

oin

t (B

2)

0.5

x I

S

L R( I + I )RESTRAINT=

2

7

8

I87HS

Differential Highset Setting

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Communication Link Function

Used for:

Current comparison

Internal intertripping

External intertripping

Communication link supervision

Current

comparison

Internal

Intertripping

External

Intertripping 1

Pilot

Supervision

Pro

tectio

n C

om

mu

nic

atio

ns87

Pro

tectio

n C

om

mu

nic

atio

ns 87

External

Intertripping 6

SOLKOR N

Local End Remote End

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Protection Signalling

Protection Signalling option

820nm up to 2km using 62.5/125mm multi-mode optical-fibre

or

820nm up to 6km using 62.5/125mm multi-mode optical-fibre

1300nm up to 40km using 9/125mm single-mode optical-fibre

Can be used with multiplexers

Addressable protection stations and external multiplexers allow multiple Solkor over a single communication channel

Communications delay compensation

Link security

Differential is blocked if link error is detected

SOLKOR N

12


Choose EYROLLE Protection R Nov-16

Kevin Hearfield

Page

Data Storage

Event Records available over data comms link

Time Type Action Description

hh:mm:ss.sss, dd:mm:yy nnn Raised

Cleared

Fault records available from relay facia

Waveform records available over data comms link

Pre-trigger storage

Record duration

Trip Alert

___________________

dd/mm/yy

Hh:mm:ss.sss

FAULT 1 dd/mm/yy

> To view

Waveform trigger storage enabled

(user selectable elements)

TEST/

RESET

Trip indication and fault storage triggered by:

Operation of:

Protection

Output relay mapped as ‘Trip Contact’

SYSTEM CONFIG > Trip Alert set as Enabled

Trip

LEDGn Element

Operate current

FAULT n dd/mm/yy

> To view

Gn Max. Fault Rec. Time

Disturbance Records

10 second window

1, 2, 5 or 10 records

Relay events

Up to 1,000 / 5,000 events

Fault Records

Up to 10 Records

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Reydisp Evolution / Reydisp Manager Create, view and download settings

4/8 Settings Groups

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ReyLogic Toolbox for advanced applications or simpler Quicklogic

Customise mimic

diagrams

8x15 tiles

up to 10 plant items

real time meters

Create logic schemes

And, or, not and

exclusive or gates

Timers, counters and

latches

Logic symbols appear in

I/O matrix

Can be used for

interlocking logic

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Solkor N 7SR18 Summary

Same size case as Solkor R/Rf – pilots to fibre or substation integration upgrade

2km or 40km fibre optic driver

OCEF directional (or non-directional) backup with SEF and auto-reclose

Quick logic and Reylogic available for advanced applications

Simple front keypad setup or using PC software

USB front port

Large LED annunciator and Function control keys

Flexible SCADA communication options

Withdrawable

Economical fibre optic differential protection ???

Easy to use

Free software

16



Thank you ……. Questions ?

SOLKOR-N (7SR18) Feeder Differential Protection Hope/12-3 SolkorN7SR18... · Make the ight choice ! Choose R EYROLLE Protection SOLKOR-N (7SR18) Feeder Differential Protection

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