Volts Per Hertz - GE 845 Instruction Manual

CHAPTER 4: SETPOINTS

Volts per Hertz

845 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL
Figure 4-87: Negative Sequence Overvoltage Protection logic diagram
The per-unit volts-per-hertz (V/Hz) value is calculated using the maximum of the three-
phase voltage inputs or the auxiliary voltage channel Vx input, if the source is not
configured with phase voltages. To use the V/Hz element with the auxiliary voltage, set the
PROTECTION
4–221