Technical Description; Functional Description; Product Functions; Schema Of Product Functions - ABB REJ 527 Technical Reference Manual
Directional or non-directional earth-fault relay
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Also See for REJ 527:
- Technical reference manual (76 pages) ,
- Product manual (12 pages) ,
- Operator's manual (36 pages)
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REJ 527
4.
4.1.
4.1.1.
4.1.1.1.
4.1.1.2.
10
Technical Reference Manual
Technical description
Functional description
Product functions
Schema of product functions
Io
EARTH-FAULT PROTECTION WITH
DEFINITE- OR INVERSE-TIME
CHARACTERISTIC, LOW-SET STAGE
Uo
EARTH-FAULT PROTECTION WITH
INSTANTANEOUS OR DEFINITE-TIME
CHARACTERISTIC, HIGH-SET STAGE
ZERO-SEQUENCE VOLTAGE
ELEMENT
DIRECTIONAL EARTH-FAULT
ELEMENT
CIRCUIT-BREAKER FAILURE
PROTECTION
BINARY INPUT BI
REMOTE RESET, REMOTE SETTING CONTROL OR
BLOCKING INPUT FOR THE DIFFERENT PROTECTION
STAGES
SERIAL COMMUNICATION
Fig. 4.1.1.1.-1 Product functions
Earth-fault current, zero-sequence voltage and intermittent
earth-faults
Refer to sections:
• 4.1.3.2. Directional or non-directional earth-fault current unit
• 4.1.3.3. Zero-sequence voltage unit
• 4.1.3.4. Protection against intermittent earth-faults
ABB Substation Automation
Products and Systems
PO1
51 N
PO2
SO1
50 N
SO2
59 N
IRF
67 N
62 BF
OPTICAL
PC-INTERFACE
1MRS750616-MUM
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