Table of Contents

Siemens / “Reyrolle 7SR11 & 7SR12 Argus” overcurrent protection _ Technical data & highlights _ SR7103

Table of Contents

Overview

The “Reyrolle 7SR11 & 7SR12 Argus” overcurrent protection series of relays provide overcurrent and earth fault protection. These relays are typically applied to provide the main protection on feeders and interconnectors and the backup protection on items of plant such as transformers. The 7SR12 includes directional control of the overcurrent and earth fault functionality and is typically installed where fault current can flow in either direction i.e. on interconnected systems.

For more detailed information on “7SR11 & 7SR12” relays, refer to Reyrolle devices documents.

To see other supported Reyrolle relays, click here.


Functional Diagrams


Functional Diagram (1/3)
Functional Diagram (2/3)
Functional Diagram (3/3)

Summary of 7SR1 Relay Configurations

Summary of 7SR1 Relay Configurations

Current Protection Functions


Phase Overcurrent (67, 51, 50)


Logic Diagram: Directional Overcurrent Element (67)

Logic Diagram: Directional Overcurrent Element (67)

Directional Overcurrent Element (67) Technical Data

Directional Overcurrent Element (67) Technical Data

Logic Diagram: Instantaneous Overcurrent Element (50)

Logic Diagram: Instantaneous Overcurrent Element (50)

Instantaneous Overcurrent Element (50) Technical Data

Instantaneous Overcurrent Element (50) Technical Data

Logic Diagram: Time Delayed Overcurrent Element (51)

Logic Diagram: Time Delayed Overcurrent Element (51)

Time Delayed Overcurrent Element (51) Technical Data

Time Delayed Overcurrent Element (51) Technical Data 1/2
Time Delayed Overcurrent Element (51) Technical Data 2/2

Logic Diagram: Voltage Controlled Overcurrent Protection (51V)

Logic Diagram: Voltage Controlled Overcurrent Protection (51V)

Voltage Controlled Overcurrent Protection (51V) Technical Data

Voltage Controlled Overcurrent Protection (51V) Technical Data

Derived Earth Fault (67N, 51N, 50N)


Logic Diagram: Derived Directional Earth Fault Element (67N)

Logic Diagram: Derived Directional Earth Fault Element (67N)

Derived Directional Earth Fault Element (67N) Technical Data

Derived Directional Earth Fault Element (67N) Technical Data

Logic Diagram: Derived Instantaneous Earth Fault Element (50N)

Logic Diagram: Derived Instantaneous Earth Fault Element (50N)

Derived Instantaneous Earth Fault Element (50N) Technical Data

Derived Instantaneous Earth Fault Element (50N) Technical Data

Logic Diagram: Derived Time Delayed Earth Fault Protection (51N)

Logic Diagram: Derived Time Delayed Earth Fault Protection (51N)

Derived Time Delayed Earth Fault Protection (51N) Technical Data

Derived Time Delayed Earth Fault Protection (51N) Technical Data 1/2
Derived Time Delayed Earth Fault Protection (51N) Technical Data 2/2

Measured Earth Fault (67G, 51G, 50G)


Logic Diagram: Measured Directional Earth Fault Protection (67G)

Logic Diagram: Measured Directional Earth Fault Protection (67G)

Logic Diagram: Measured Instantaneous Earth-fault Element (50G)

Logic Diagram: Measured Instantaneous Earth-fault Element (50G)

Measured Instantaneous Earth-fault Element (50G) Technical Data

Measured Instantaneous Earth-fault Element (50G) Technical Data

Logic Diagram: Measured Time Delayed Earth Fault Element (51G)

Logic Diagram: Measured Time Delayed Earth Fault Element (51G)

Measured Time Delayed Earth Fault Element (51G) Technical Data

Measured Time Delayed Earth Fault Element (51G) Technical Data 1/2
Measured Time Delayed Earth Fault Element (51G) Technical Data 2/2

Sensitive Earth Fault (67SEF, 51SEF, 50SEF)


Logic Diagram: SEF Directional Element (67SEF)

Logic Diagram: SEF Directional Element (67SEF)

SEF Directional Element (67SEF) Technical Data

SEF Directional Element (67SEF) Technical Data

Logic Diagram: 7SR11 SEF Instantaneous Element (50SEF)

Logic Diagram: 7SR11 SEF Instantaneous Element (50SEF)

Logic Diagram: 7SR12 SEF Instantaneous Element (50SEF)

Logic Diagram: 7SR12 SEF Instantaneous Element (50SEF)

SEF Directional Element (67SEF) Technical Data

SEF Directional Element (67SEF) Technical Data

Logic Diagram: 7SR11 SEF Time Delayed Element (51SEF)

Logic Diagram: 7SR11 SEF Time Delayed Element (51SEF)

Logic Diagram: 7SR12 SEF Time Delayed Element (51SEF)

Logic Diagram: 7SR12 SEF Time Delayed Element (51SEF)

SEF Time Delayed Element (51SEF) Technical Data

SEF Time Delayed Element (51SEF) Technical Data 1/2
SEF Time Delayed Element (51SEF) Technical Data 2/2

High Impedance Restricted Earth Fault – (64H)


Logic Diagram: High Impedance REF (64H)

Logic Diagram: High Impedance REF (64H)

High Impedance REF (64H) Technical Data

High Impedance REF (64H) Technical Data

Cold Load (51c)


Logic Diagram: Cold Load Settings (51c)

Logic Diagram: Cold Load Settings (51c)

Negative Phase Sequence Overcurrent – (46NPS)


Logic Diagram: Negative Phase Sequence Overcurrent (46NPS)

Logic Diagram: Negative Phase Sequence Overcurrent (46NPS)

Negative Phase Sequence Overcurrent (46NPS) Technical Data

Negative Phase Sequence Overcurrent (46NPS) Technical Data 1/2
Negative Phase Sequence Overcurrent (46NPS) Technical Data 2/2

Under-Current Detector (37)


Logic Diagram: Phase Current Inputs Undercurrent Detector (37)

Logic Diagram: Phase Current Inputs Undercurrent Detector (37)

Logic Diagram: Earth Current Inputs Undercurrent Detector (37G)

Logic Diagram: Earth Current Inputs Undercurrent Detector (37G)

Logic Diagram: Sensitive Earth Current Inputs Undercurrent Detector (37SEF)

Logic Diagram: Sensitive Earth Current Inputs Undercurrent Detector (37SEF)

Undercurrent Detector (37) Technical Data

Undercurrent Detector (37) Technical Data

Thermal Overload (49)


Thermal Overload (49) Operating Time

Thermal Overload (49) Operating Time

Logic Diagram: Thermal Overload Protection (49)

Logic Diagram: Thermal Overload Protection (49)

Thermal Overload Protection (49) Technical Data

Thermal Overload Protection (49) Technical Data

Thermal Overload Protection Curves

Thermal Overload Protection Curves

Line Check 50LC, 50G LC and 50SEF LC – Only software option ‘C’


Logic Diagram: 50G Line Check Elements (50G LC)

Logic Diagram: 50G Line Check Elements (50G LC)

Logic Diagram: 50SEF Line Check Elements (50SEF LC)

Logic Diagram: 50SEF Line Check Elements (50SEF LC)

Logic Diagram: 50 Line Check Elements (50LC)

Logic Diagram: 50 Line Check Elements (50LC)

Arc Flash Detector (50 AFD)


Logic Diagram: Arc Flash Detector (50 AFD)

Logic Diagram: Arc Flash Detector (50 AFD)

Arc Flash Detector (50 AFD) Technical Data

Arc Flash Detector (50 AFD) Technical Data

Voltage Protection Functions


Phase Under/Over Voltage (27/59) – 7SR12


Logic Diagram: Under/Over Voltage Elements (27/59)

Logic Diagram: Under/Over Voltage Elements (27/59)

Under/Over Voltage Elements (27/59) Technical Data

Under/Over Voltage Elements (27/59) Technical Data

Negative Phase Sequence Overvoltage (47) – 7SR12


Logic Diagram: NPS Overvoltage Protection (47)

Logic Diagram: NPS Overvoltage Protection (47)

NPS Overvoltage Protection (47) Technical Data

NPS Overvoltage Protection (47) Technical Data

Neutral Overvoltage (59N) – 7SR12


Logic Diagram: Neutral Overvoltage Element (59N)

Logic Diagram: Neutral Overvoltage Element (59N)

Neutral Overvoltage Element (59N) Technical Data

Neutral Overvoltage Element (59N) Technical Data 1/2
Neutral Overvoltage Element (59N) Technical Data 2/2

Under/Over Frequency (81) – 7SR12


Logic Diagram: Under/Over Frequency Detector (81)

Logic Diagram: Under/Over Frequency Detector (81)

Under/Over Frequency Detector (81) Technical Data

Under/Over Frequency Detector (81) Technical Data

Power Protection Functions


Power (32) – 7SR12


Logic Diagram: Power Protection (32)

Logic Diagram: Power Protection (32)

Power Protection (32) Technical Data

Power Protection (32) Technical Data

Sensitive Power (32S) – 7SR12


Logic Diagram: Sensitive Power Protection (32S)

Logic Diagram: Sensitive Power Protection (32S)

Sensitive Power Protection (32S) Technical Data

Sensitive Power Protection (32S) Technical Data

Power Factor (55) – 7SR12


Logic Diagram: Power Factor Protection (55)

Logic Diagram: Power Factor Protection (55)

Power Factor Protection (55) Technical Data

Power Factor Protection (55) Technical Data

Supervision Functions


Circuit Breaker Failure (50BF)


Logic Diagram: Circuit Breaker Fail Protection (50BF)

Logic Diagram: Circuit Breaker Fail Protection (50BF)

Circuit Breaker Fail Protection (50BF) Technical Data

Circuit Breaker Fail Protection (50BF) Technical Data

VT Supervision (60VTS) – 7SR1205 & 7SR1206


Logic Diagram: VT Supervision Function (60VTS)

Logic Diagram: VT Supervision Function (60VTS)

VT Supervision Function (60VTS) Technical Data

VT Supervision Function (60VTS) Technical Data

CT Supervision (60CTS)


Logic Diagram: CT Supervision Function (60CTS) – 7SR11

Logic Diagram: CT Supervision Function (60CTS) – 7SR11

Logic Diagram: CT Supervision Function (60CTS) – 7SR12

Logic Diagram: CT Supervision Function (60CTS) – 7SR12

CT Supervision Function (60CTS) Technical Data

CT Supervision Function (60CTS) Technical Data

Broken Conductor (46BC)


Logic Diagram: Broken Conductor Function (46BC)

Logic Diagram: Broken Conductor Function (46BC)

Broken Conductor Function (46BC) Technical Data

Broken Conductor Function (46BC) Technical Data

Trip/ Close Circuit Supervision (74TCS & 74CCS)


Logic Diagram: Trip Circuit Supervision Feature (74TCS)

Logic Diagram: Trip Circuit Supervision Feature (74TCS)

Logic Diagram: Close Circuit Supervision Feature (74CCS)

Logic Diagram: Close Circuit Supervision Feature (74CCS)

Trip/Close Circuit Supervision Feature (74TCS/74CCS) Technical Data

Trip/Close Circuit Supervision Feature (74TCS/74CCS) Technical Data

2nd Harmonic Block/Inrush Restraint (81HBL2) phase elements only


Functional Diagram for Harmonic Block Feature (81HBL2)

Functional Diagram for Harmonic Block Feature (81HBL2)

Harmonic Block Feature (81HBL2) Technical Data

Harmonic Block Feature (81HBL2) Technical Data

General


IEC/ANSI Operate & Reset Curves


IEC IDMTL Curves (Time Multiplier=1)

IEC IDMTL Curves (Time Multiplier=1)

ANSI IDMTL Operate Curves (Time Multiplier=1)

ANSI IDMTL Operate Curves (Time Multiplier=1)

ANSI Reset Curves (Time Multiplier=1)

ANSI Reset Curves (Time Multiplier=1)

IEC Reset Curves (Time Multiplier=1)

IEC Reset Curves (Time Multiplier=1)

Analog Inputs


AC Analog Currents

AC Analog Currents

AC Analog Voltages

AC Analog Voltages

Binary Inputs/Outputs


Binary Input Logic

Binary Input Logic

Binary Inputs Technical Data

Binary Inputs Technical Data

Binary Output Logic

Binary Output Logic

Binary Output Technical Data

Binary Output Technical Data

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