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CHAPTER 4: SETPOINTS
845 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
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Phase Undervoltage Protection (27P)
•
Auxiliary Undervoltage (27X)
•
Phase Overvoltage Protection (59P)
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Auxiliary Overvoltage Protection (59X)
•
Neutral Overvoltage Protection (59N)
•
Negative Sequence Overvoltage Protection (59_2)
•
Volts per Hertz (24)
Power Elements
•
Directional Power (32)
Frequency Elements
•
Underfrequency (81U)
•
Overfrequency (81O)
•
Frequency Rate of Change (81R)
PROTECTION
4–139
- Quick Links:
- Specifications
- Typical Wiring Diagrams
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