GE 845 - Page 267

CHAPTER 4: SETPOINTS PROTECTION
845 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL 4–139
• Phase Undervoltage Protection (27P)
• Auxiliary Undervoltage (27X)
• Phase Overvoltage Protection (59P)
• 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)