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GE DS200LPPAG1AAA Mark V Speedtronic Line Protection Panel Board

Configured for three-phase electrical line monitoring and drive power stack protection in GE Mark V Speedtronic turbine control platforms, the GE DS200LPPAG1AAA (DS200LPPAG1 Line Protection Panel Board) provides direct physical/electrical execution. It evaluates line-to-line and line-to-neutral voltage conditions via an internal divider network across 12 input channels. Upon detection of phase loss, over-voltage, under-voltage, or frequency excursions, the hardware comparator activates an on-board Form-C relay within 10 ms to trip external contactors.

Hardware Specifications

Parameter	Specification
Model	DS200LPPAG1AAA
Brand	General Electric (GE)
Origin	United States
Module Type	Line Protection Panel Board
System Platform	Mark V Speedtronic Control System
System Input Range	200-600 VAC, 3-phase
Input Channels	12 (line-to-line & line-to-neutral via divider network)
Board Supply Voltage	28 VDC +/-10%
Power Consumption	Nominal 15 W max
Pick-up Accuracy	+/-2% of set-point
Trip Response Time	<=10 ms (hardware comparator)
Output Relay	125 VDC, Form-C, 5 A resistive
Galvanic Isolation	1500 V input-to-logic
Operating Temp	-40 deg C to +85 deg C
Dimensions	330 x 178 x 25 mm
Weight	0.6 kg

Hardware Comparator and Backplane Communication Velocity

The board utilizes fixed hardware comparators bypassing software scan times to execute discrete trip commands within 10 ms of fault detection. Bus communication velocity across the Mark V backplane is maintained via high-speed latches that broadcast line fault flags directly to the master controller. Firmware flash compatibility across the DS200 series allows unified diagnostic feedback across different revision revisions without requiring hardware modification.

Frequently Asked Questions

Q: Does the DS200LPPAG1AAA support hot-swapping during active operation?

A: No. Power to the 28 VDC supply rail and high-voltage line inputs (200-600 VAC) must be de-energized prior to removal or installation to prevent arc flash and logic component damage.

Q: How is galvanic isolation maintained between high-voltage inputs and controller logic?

A: Isolation up to 1500 V is achieved via internal optocouplers and step-down divider networks, separating the 200-600 VAC line monitoring inputs from the 28 VDC logic power plane.

Q: What is the maximum resistive rating for the Form-C output relay contact?

A: The output relay is rated for a maximum resistive switching load of 5 A at 125 VDC.

Field Installation Guidelines

1. Mount the board onto the chassis standoff guides using anti-static handling protocols. Secure all mounting screws to establish chassis ground continuity.
2. Verify input wiring separation. Route high-voltage 200-600 VAC lines away from low-voltage 28 VDC supply and communication signal cables to minimize inductive coupling.
3. Terminate signal cable shielding at designated single-point ground studs on the panel enclosure. Do not ground shields at both ends.
4. Ensure screw terminal connections for the Form-C relay output and line-divider inputs are torqued according to cabinet panel assembly standards.

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