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EX2100 User’s Guide GEH-6632 Chapter 2 Functional Description
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2-1
Chapter 2 Functional Description
Introduction
This chapter describes the function of the EX2100 static exciter and the individual
control and protection circuits. Power supplies and the distribution of power is also
covered. The functional description information is organized as follows:
Section Page
Exciter Hardware..................................................................................................... 2-2
Exciter Configurations............................................................................................. 2-3
Power Conversion Cabinet ...................................................................................... 2-5
Manual Ac Disconnect (Optional).................................................................... 2-5
Power Converter Module (PCM)...................................................................... 2-5
Gate Pulse Amplifiers (EGPA Board).............................................................. 2-6
Main Dc Contactors. 41A or 41A/41B (Optional)............................................ 2-7
Free Wheeling Diode De-excitation ................................................................. 2-7
Auxiliary Cabinet..................................................................................................... 2-8
Ac Line-to-Line Filters..................................................................................... 2-8
De-excitation Module (EDEX)......................................................................... 2-8
Shaft Voltage Suppressor.................................................................................. 2-9
Field Flashing Module...................................................................................... 2-9
Field Ground Detector (EXAM and EGDM) ................................................... 2-9
High Voltage Interface – HVI .......................................................................... 2-9
Control Cabinet...................................................................................................... 2-10
Diagnostic Interface (Keyad).......................................................................... 2-10
Control Module............................................................................................... 2-11
Simplex Control System................................................................................. 2-12
Redundant Control System............................................................................. 2-13
Control Power Supplies .................................................................................. 2-14
Exciter Software .................................................................................................... 2-17
Auto Reference – AUTO REF........................................................................ 2-20
AVR Setpoint – EXASP................................................................................. 2-20
Automatic Voltage Regulator – AVR............................................................. 2-20
Manual Reference – MANUAL REF ............................................................. 2-21
Field Voltage and Current Regulators - FVR & FCR..................................... 2-21
Under Excitation Limiter – UEL .................................................................... 2-22
Power System Stabilizer – PSS ...................................................................... 2-22
Human Machine Interface (HMI) .......................................................................... 2-23
Mark VI HMI.................................................................................................. 2-23
Toolbox........................................................................................................... 2-23