GE DS200PLIBG2A

Key Technical Parameters

Advantages & Core Features

• High-density I/O capacity – With 16 inputs and 8 outputs, the DS200PLIBG2A provides double the capacity of the DS200PLIBG1A (8 inputs, 4 outputs), enabling monitoring and control of multiple breakers, tie switches, and auxiliary equipment from a single board. This reduces the number of boards required in the rack, saving valuable space in dense installations.

• Selectable input voltage – Inputs are jumper-selectable for 24 VDC or 125 VDC, providing flexibility to interface with different plant control voltages without external signal converters.

• Galvanic isolation – 2,500 VAC isolation protects the Mark V backplane and processor from voltage spikes and ground loops in the switchyard.

• Programmable debounce filtering – Adjustable input filtering (5-50 ms) prevents false status changes from contact bounce or transient noise.

• Dry contact relay outputs – Eight form C relays provide robust breaker trip/close commands, rated for 5A @ 250 VAC / 30 VDC – suitable for direct control of medium-voltage switchgear.

• Status LEDs – 24 LEDs (16 inputs + 8 outputs) provide immediate visual indication of all I/O status, simplifying troubleshooting.

• Compact 1-slot form factor – Despite the high-density I/O, the board fits in any standard Mark V slot without requiring adjacent empty space.

Application Cases

• Complex switchyard with multiple breakers – A 500 MW combined-cycle plant with a dual-bus, dual-breaker switchyard uses the DS200PLIBG2A to monitor 12 circuit breakers, 4 disconnect switches, and 2 grounding switches. The 16 inputs and 8 outputs handle the entire breaker interface from a single board, saving rack space for other critical modules.

• Offshore platform with limited rack space – A North Sea platform with a compact Mark V rack uses the DS200PLIBG2A to monitor and control the utility tie breaker, generator breaker, and emergency diesel generator breaker. The high-density I/O eliminates the need for a second breaker interface board.

• Industrial co-generation facility – A chemical plant with multiple tie breakers and load-shedding schemes uses the DS200PLIBG2A to execute automatic transfer and islanding sequences.

• Hydroelectric plant with multiple units – A dam facility uses the DS200PLIBG2A to interface with the main transformer breaker and auxiliary breakers for multiple turbine-generator units.

Comparison with Related Variants

Key Takeaway: The DS200PLIBG2A is the highest-density Mark V breaker interface board, offering 16 inputs and 8 outputs in a single 1-slot package. It is the ideal choice for complex switchyards or space-constrained racks where the base DS200PLIBG1A would require multiple boards. There is no conformally coated version of the G2A model – for harsh environments, you would need to balance density requirements with the coated but lower-density DS200PLIBG1ACA.

Selection Suggestions

1. Count required I/O – If your application requires more than 12 inputs or 6 outputs, the DS200PLIBG2A with 16 inputs and 8 outputs may allow you to use a single board instead of multiple base boards.

2. Assess environmental conditions – The DS200PLIBG2A has no conformal coating. For harsh environments (coastal, offshore, chemical), consider the coated DS200PLIBG1ACA (12 inputs, 6 outputs) or use additional protective measures with the G2A.

3. Verify input voltage – Select the appropriate jumper setting for 24 VDC or 125 VDC based on your plant’s switchgear auxiliary supply.

4. Confirm relay rating – Ensure the 5A @ 250 VAC rating is sufficient for your trip/close coils. For larger coils, external interposing relays may be required.

5. Check slot availability – Standard 1-slot Mark V position.

6. Procurement – The DS200PLIBG2A is rare. Purchase from reputable suppliers offering functional testing (all inputs/outputs verified, isolation tested). Lead times: 8-12 weeks.

7. Stock spares – Maintain one on-site spare for critical applications.

Important Precautions

• Power down completely – De-energize rack before installation. Hot-swapping not supported.

• ESD protection – Use wrist strap and anti-static mat.

• Field wiring – Ensure field wiring is properly terminated and routed away from high-voltage cables. Use shielded cables for inputs if running in noisy environments.

• Voltage selection – Verify jumper settings before applying field power. Incorrect voltage selection will damage the board.

• Debounce configuration – Set debounce time based on contact characteristics (typical: 10-30 ms).

• Relay contacts – Do not exceed 5A @ 250 VAC / 30 VDC ratings. For higher current loads, use interposing relays.

• Cleaning – Use compressed air only. No liquids.

• Storage – Store at 10-30°C, 20-50% RH. Rotate every 24 months.

Final Expert Recommendation

The DS200PLIBG2A is the highest-density Mark V breaker interface board, offering 16 inputs and 8 outputs in a compact 1-slot package. It is the definitive choice for installations requiring monitoring and control of multiple circuit breakers, disconnect switches, and grounding switches from a single board, particularly in space-constrained racks where multiple base boards would be impractical.

Select the DS200PLIBG2A when:

• You need to monitor and control more than 12 breakers or auxiliary switches

• You require more than 6 breaker trip/close outputs

• Your rack is space-constrained and you want to minimize board count

• You have a clean indoor environment (no conformal coating required)

However, there is no conformally coated version of the G2A model. For harsh environments, you must choose between:

• The DS200PLIBG1ACA (coated, 12 inputs, 6 outputs) – if that capacity is sufficient

• The DS200PLIBG2A with external protective measures (sealed enclosures, additional surge suppression) – if the higher density is essential

For most applications, the DS200PLIBG1A (8 inputs, 4 outputs) is sufficient for standard breaker monitoring. The DS200PLIBG2A should be reserved for complex switchyards, multi-breaker installations, or dense racks where space is at a premium.

When sourcing the DS200PLIBG2A, ensure functional testing of all inputs and outputs is performed. With proper installation and configuration, this board will provide years of reliable service as the high-density interface between your turbine control system and complex power distribution equipment.