Turbomachinery Package Specification

Titan 250 Generator Set

 

 

10 Generator Control and Monitoring

10.1General Description

For generator control and monitoring, the Turbotronic 4 control system incorporates a Rockwell Automation/Allen-Bradley combination generator control module (CGCM). The CGCM provides generator control, protection, and monitoring. Three excitation control modes are available:

•Automatic voltage regulation (AVR) - A constant generator output voltage is maintained

•Power factor (PF) control - A constant power factor is maintained when operating in parallel with a large power source

•Reactive power control - A constant reactive load is maintained when operating in parallel with a large power source

The following excitation control features are available:

•Under frequency limiting

•Over and under excitation limiting

•Reactive droop compensation

•Cross-current compensation

•Line-drop compensation

Protection features for the driver and driven equipment include:

•Field current limit

•Generator overcurrent

•Generator overvoltage

•Generator undervoltage

•Loss of excitation current

•Loss of operating power

•Loss of sensing

•Over excitation voltage

•Overfrequency

•Underfrequency

•Phase rotation error

•Reverse power

•Reverse volt amp reactive (VAR)

•Exciter (rotating) diode monitor

The protection features provided typically do not meet the requirements of power utility companies for the general protection of power distribution systems. This can only be done through the use of appropriately certified protective relay components with settings approved by qualified personnel based on a comprehensive analysis of the complete system.

© 2008 Solar Turbines Incorporated. All rights reserved.

TPS250GS/908 - Preliminary

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