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overview：
GE DS200FHVAG1ABA is a high voltage gate interface board produced by GE Mark V series. It is specifically used for LCI power converters. The board provides the necessary SCR gate control interface and battery voltage monitoring functions. It plays a role in managing SCR (silicon controlled rectifier) gate signals and battery voltage monitoring in high power applications. The board can be used for SCR ignition control in gas turbine excitation systems.
Fuctions & Features:
- Gate Power Delivery and Signal Feedback: The GE DS200FHVAG1ABA provides an isolated path for gate power from the gate pulse amplifier (FGPA) board to a 77mm SCR, sending a signal to the FGPA when the voltage drop across the SCR exceeds a certain threshold.
- Status Indicator: The GE DS200FHVAG1ABA illuminates an LED on the board to indicate the presence of battery voltage when SCR blocking voltage is present; the SCR status circuit also illuminates a red LED labeled C STAT to indicate the presence of blocking voltage, which is visible when the bridge power is turned on and slightly dimmed as the SCR conduction angle increases.
- Gate Pulse Conversion: The toroidal current transformer (CT) welded on the GE DS200FHVAG1ABA board acts as a gate pulse transformer. The single-turn primary wire on the board can pass through the center of the CT window, allowing the CT to withstand the static corona around the power line.
Specification:
|
Parameter |
Value |
|
Model |
DS200FHVAG1A |
|
Application |
Gas Turbine Control Systems, LCI Power Converter |
|
Dimensions |
3.25 inches × 5 inches |
|
Operating Temperature |
32°F to 122°F (with an additional 18°F rise inside the cabinet) |
|
SCR Size |
77mm |
|
Equalizer Resistor |
10K ohms |
|
LED Indicator |
Red C STAT LED |
|
Connectors |
Fiber-optic transmitter U1 (Gray), P1-1, P1-2 |
|
Protection Features |
Resistor protection, Dust protection for fiber-optic transmitter |
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