IC698CHS017B Combustion engine framework

Alarms Affected The PT Phase A voltage is used for the Voltage High and Low limit set points that are found in the Shutdown and Alarm tuning menu. The voltage limit set points can be configured for various alarm indications. Also, if the generator voltage as sensed by the EGCP-2 exceeds the Voltage High limit, or falls below the Voltage Low limit, the voltage bias output will stop moving in the direction that the alarm occurred. The A phase PT voltage is used in the calculations for kW and kVAR load. All alarms monitoring these conditions will be affected if the A phase PT is not properly calibrated.

PT Phase B Scale 

Calibrates the B phase generator PT input. Menus Affected Changes in the calibration set point will change the generator B phase voltage as read in the Generator Status screen. Changing this value will also have an effect on generator kW and kVAR levels. Operations Affected Generator Voltage is used in real and reactive load calculations. These calculations are used in all real and reactive power control functions. Alarms Affected The B phase PT voltage is used in the calculations for kW and kVAR load. All alarms monitoring these conditions will be affected if the B phase PT is not properly calibrated

Menus Affected 

Changes in the calibration set point will change the generator C phase voltage as read in the Generator Status screen. Changing this value will also have an effect on generator kW and kVAR levels. Operations Affected Generator Voltage is used in real and reactive load calculations. These calculations are used in all real and reactive power control functions. Alarms Affected The C phase PT voltage is used in the calculations for kW and kVAR load. All alarms monitoring these conditions will be affected if the A phase PT is not properly calibrated. CT Phase A Offset Calibrates the A phase generator CT input offset (zero current) reading.