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SEC COA Tested and Approved ABB Medium Voltage Relays As per Revision 7 of SEC Approved List Application Description Type 1. DIRECTIONAL OVER CURRENT 2. DIRECTIONAL EARTH FAULT PROTECTION Directional O/C relay Directional Earth Fault relay REX521H02 REX521H02 3.SYNCHRO CHECK RELAY 4.AUTO RECLOSURE Numerical Synchrocheck Relay Multi-Shot Auto-Re closing Prot. REX521H03 REX521H03 5.TRANSFORMER BIASED DIFFERENTIAL PROTECTION. Transformer Differential Relay RET 541/3/5 6. AUTOMATIC VOLTAGE CONTROL Voltage Regulating Relay. SPAU341C RET541 7. OVER-CURRENT & EARTH- FAULT PROTECTION O/C & E/F Relay REF 610 REJ525 8. VOLTAGE MONITORING RELAYS. Under/Over Voltage Relay REU 523 REU610 9. UNDER FREQUENCY RELAYS Under Frequency Relay with df/dt SPAF340C 10. TRIP CIRCUIT SUPERVISION Trip Circuit Supervision SPER1C1 11. ALARM ANNUNCIATOR Alarm Annunciator SACO 16D3 Contact Person: Ahmed Anwar Product Marketing Engineer Distribution Automation Mobile: +966 56 3313 581 [email protected]

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Page 1: ABB DA SEC Approved Relays

SEC COA Tested and Approved ABB Medium Voltage Relays As per Revision 7 of SEC Approved List

Application Description Type

1. DIRECTIONAL OVER CURRENT 2. DIRECTIONAL EARTH FAULT PROTECTION

Directional O/C relay

Directional Earth Fault relay

REX521H02

REX521H02

3.SYNCHRO CHECK RELAY 4.AUTO RECLOSURE

Numerical Synchrocheck Relay

Multi-Shot Auto-Re closing Prot.

REX521H03

REX521H03

5.TRANSFORMER BIASED DIFFERENTIAL PROTECTION.

Transformer Differential Relay RET 541/3/5

6. AUTOMATIC VOLTAGE CONTROL

Voltage Regulating Relay. SPAU341C RET541

7. OVER-CURRENT & EARTH- FAULT PROTECTION

O/C & E/F Relay REF 610 REJ525

8. VOLTAGE MONITORING RELAYS.

Under/Over Voltage Relay REU 523 REU610

9. UNDER FREQUENCY RELAYS Under Frequency Relay with df/dt SPAF340C

10. TRIP CIRCUIT SUPERVISION Trip Circuit Supervision SPER1C1

11. ALARM ANNUNCIATOR Alarm Annunciator SACO 16D3

Contact Person: Ahmed Anwar Product Marketing Engineer Distribution Automation Mobile: +966 56 3313 581 [email protected]

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