Synch Tab

Use this tab to enter the synchronization limits and settings.

Parameters

Synchronization Limits

Frequency Match

Lower Limit

This value establishes the lowest frequency error for which the CGCM will allow the generator to be synchronized. Valid values range from -2.0 to 2.0 Hz; the default value is -0.1 Hz.

Upper Limit

This value establishes the highest frequency error for which the CGCM will allow the generator to be synchronized. Valid values range from -2.0 to 2.0 Hz; the default value is 0.1 Hz.

Voltage Match

Lower Limit

This value establishes the lowest voltage error for which the CGCM will allow the generator to be synchronized. Valid values range from -25.0 to 25.0 % V; the default value is -5.0 % V.

Upper Limit

This value establishes the highest voltage error for which the CGCM will allow the generator to be synchronized. Valid values range from -25.0 to 25.0 % V; the default value is 5.0 % V.

Phase Match

Lower Limit

This value establishes the lowest phase angle error for which the CGCM will allow the generator to be synchronized to the bus. Valid values range from -45.0 to 45.0 deg; the default value is -10.0 deg.

Upper Limit

This value establishes the highest phase angle error for which the CGCM will allow the generator to be synchronized to the bus. Valid values range from -45.0 to 45.0 deg; the default value is 10.0 deg.

Acceptance Delay

This value establishes the time duration that is required for all parameters to be set to allow for breaker closing. This value is based on the time the frequency, voltage, and phase angle of the generator and bus have been matched. Valid values range from 0.0 (default) to 10.0 seconds.

Bus A Offsets

Voltage Multiplier

This value establishes a multiplier by which the measured bus A voltage is multiplied. This value can be used to compensate for ratio error across transformers. Valid values range from 0.00 to 30000.0; the default value is 1.0.

Phase

This value establishes a phase angle added to the measured bus A phase angle. This value can be used to compensate for phase shift across transformers. Valid values range from -180.0 to 180.0 deg; the default value is 0.0 deg.

Bus B Offsets

Voltage Multiplier

This value establishes a multiplier by which the measured bus B voltage is multiplied. This value can be used to compensate for ratio error across transformers. Valid values range from 0.00 to 30000.0; the default value is 1.0.

Phase

This value establishes a phase angle added to the measured bus B phase angle. This value can be used to compensate for phase shift across transformers. Valid values range from -180.0 to 180.0 deg; the default value is 0.0 deg.

Rotation

Generator

This value provides the CGCM module with generator phase rotation information to allow the CGCM to recognize a reverse phase rotation situation, and to prevent breaker closing while the reverse condition exists. Valid values are ABC (0) (default) and ACB (1).

Bus

This value provides the CGCM module with bus phase rotation information to allow the CGCM to recognize a reverse phase rotation situation, and to prevent breaker closing while the reverse condition exists. This setting is for single breaker configurations only. Valid values are ABC (0) (default) and ACB (1).

Dead Bus Limits

Min Frequency

This value establishes the minimum frequency that the CGCM will recognize as dead bus frequency and allow a dead bus breaker closure to occur. Valid values range from 40.0 to 70.0 Hz; the default value is 59.95 Hz.

Max Frequency

This value establishes the maximum frequency that the CGCM will recognize as dead bus frequency and allow a dead bus breaker closure to occur. Valid values range from 40.0 to 70.0 Hz; the default value is 60.05 Hz.

Min Voltage

This value establishes the minimum voltage that the CGCM will recognize as dead bus voltage condition and allow a dead bus breaker closure to occur. Valid values range from 85.0 to 30000.0 V; the default value is 460.0 V.

Max Voltage

This value establishes the maximum voltage that the CGCM will recognize as dead bus voltage condition and allow a dead bus breaker closure to occur. Valid values range from 85.0 to 30000.0 V; the default value is 500.0 V.

OK

Click this button to accept your edits on any tab and close the dialog.

Cancel

Click this button to cancel your edits on any tab and close the dialog.

Apply

Click this button to apply your edits on any tab and continue editing.

Help

Click this button for help on this tab.