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Keterangan
GE DS200TCPSG1A Mark V Power Supply Board
Configured for power conversion and low-voltage regulation in Mark V turbine and drive control racks, the GE DS200TCPSG1A (DS200TCPS DC Input Power Supply Board) provides direct physical/electrical execution. It transforms a standard 125 VDC input bus into stabilized logic and field voltage rails (+5 VDC, +24 VDC, and -15 VDC) required by internal processing, analog signal conditioning, and digital I/O circuitry within the cabinet enclosure.
Suffix Breakdown & Model Matrix
DS200: Standard GE Mark V board series prefix representing full-size rack-mountable printed circuit card architecture.
TCPS: Functional product acronym indicating Turbine Control Power Supply board circuitry.
G1: Functional group iteration identifier for board revisions and component layouts.
A: First functional revision level designating initial component and trace layout standard.
Hardware Specifications
Parameter
Specification
Model
DS200TCPSG1A
Brand
GE General Electric
Origin
USA
Weight
0.92 kg
Dimensions
220 mm x 160 mm x 35 mm
Operating Temp
-10 deg C to +55 deg C
Power Consumption
176 W (150 W output at 85% typical efficiency)
Input Voltage
125 VDC (+/-20%)
Output Voltages
+5 VDC (8 A), +24 VDC (4 A), -15 VDC (1.5 A)
Total Output Power
150 W maximum
Switching Frequency
150 kHz
Hold-up Time
18 ms at full load
Output Ripple
< 30 mV (+5 V), < 80 mV (+24 V), < 50 mV (-15 V)
PCB Configuration
6-layer board with normal conformal coating
Status Indicators
3 LEDs (+5V OK, +24V OK, -15V OK)
Industrial Control & Backplane Characteristics
The GE DS200TCPSG1A integrates high-frequency pulse-width modulation operating at a switching frequency of 150 kHz to maximize backplane power conversion density. The module features 8200 uF bulk input capacitance to deliver an 18 ms hold-up time during bus transient dips, preventing logic reset events across the local backplane bus communication velocity framework. Passive dissipation via heavy-gauge aluminum heat sinks eliminates mechanical fan failures, ensuring strict firmware flash compatibility and deterministic execution across connected control nodes without introducing noise into high-density I/O routing.
Frequently Asked Questions
Q: Can the DS200TCPSG1A board be hot-swapped while the Mark V rack is actively energized?
A: No. Hot-swapping is prohibited. De-energize the main 125 VDC feeder circuit and wait a minimum of 5 minutes to allow the 8200 uF internal bulk capacitors to fully discharge before inserting or removing the board from the rack.
Q: What do the three front-panel LED indicators communicate during operation?
A: The green status LEDs monitor each output rail (+5 VDC, +24 VDC, and -15 VDC). An extinguished LED indicates a downstream bus fault, short circuit, or internal regulator shutdown on that specific rail.
Field Installation Guidelines
Ensure the control enclosure main breaker supplying 125 VDC is locked out and tagged out prior to installation. Verify zero voltage at the terminal blocks using a calibrated digital multimeter.
Align the board edges with the card guide rails inside the designated Mark V single-slot chassis location.
Slide the board firmly until the backplane connectors engage completely. Tighten all mechanical retaining screws to establish chassis frame earth ground.
Verify all wiring shields are terminated to the low-impedance ground bus bar using short, uninsulated braid connections. Keep signal wiring separated from power conductors by a minimum clearance of 100 mm.
