Generator Protective Features

• Over/Under Voltage (27.59)

• Over/Under Frequency (81O,81U)

• Directional (Forward/Reverse) Power (32)*

• Negative Phase Sequence Overcurrent (46)

• Negative Phase Sequence Overvoltage (47)

• Phase Overcurrent (51)*

• Directional VAR

• Phase Current Differential Imbalance (87)*

• Speed/Frequency Mismatch

• Load Surge

Utility Protective Features

• Over/Under Voltage (27.59)

• Over/Under Frequency (81O,81U)

• Directional (Forward/Reverse) Power (32)*

• Negative Phase Sequence Overcurrent (46)

• Negative Phase Sequence Overvoltage (47)

• Phase Overcurrent (51)*

• Voltage Restrained Phase Overcurrent (51V)*

• Directional VAR

• Phase Current Differential Imbalance (87)*

• Loss of Mains/Loss of Mains with Alarm

*—Inverse Time Protections implemented are according to IEEE C37.112 “Very Inverse” curves