IC697PWR748D Gas turbine module

Voltage Range Alarm 

• Alarm/Shutdown point for an excess of voltage bias signal from the EGCP-2 to AVR. 

• Preset to trigger at ±100% voltage bias output. 

• Indicates that the AVR is not responding to the voltage bias output as expected.

Generator Volt High Limit

 • Sets maximum allowable generator voltage level.

 • If voltage is above High Limit, generator is not considered stable, and is unfit for breaker closure.

Generator Volt Low Limit 

• Sets minimum allowable generator voltage level. 

• If voltage is below Low Limit, generator is not considered stable, and is unfit for breaker closure 

• Voltage Bias will not decrease while generator voltage is below the low limit.

Generator High/Low Volt Limit Alarm 

• Even if the Alarm Set Points for the High/Low Limits are Disabled, the Voltage Bias will not allow adjustment beyond these limits. 

• The same is true for the synchronizer, which will not allow a gen breaker closure if the High or Low Voltage limits are met or exceeded for a period of time which exceeds the Gen Volt Timer Set Point. This is true even with Voltage Matching disabled. 

Voltage Alarm Delay 

• Sets minimum time, in seconds, allowed prior to activating either Generator High/Low Voltage Limit Alarms. This allows for short period transient over/under voltages to occur on the generator without setting off the Generator Voltage Alarms.