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Chapter 2 Functional Description GEH-6632 EX2100 User’s Guide
Exciter Hardware
The EX2100 exciter consists of the following basic components.
Power Conversion Module (PCM) and coolin g fans
Power potential transformer (PPT) (mounted separate from exciter)
Line-to-line filters
Shaft voltage suppressor
De-excitation module
Diagnostic Interface (keypad)
Controllers and I/O boards
Control power supplies
Optional components that can be added to the exciter are:
Warm backup bridge configuration
Multibridge configuration for high current requirements
Compound power source (separate from exciter)
Auxiliary power source (bus-fed)
Crowbar module (for hydro and other special applications)
Dc Disconnect
Field ground detector
Redundant ac source for power supply
Ac disconnect
Field flashing module
Redundant controllers providing a Triple Modular Redundant (TMR) system
GE Control System Toolbox (toolbox) for configuration
The control hardware is basically the same for the different types of excitation. The
power conversion hardware is defined by application requirements, which therefore
determines the exciter bridge size.