GE DS200LRPAG1A DS200LRPAG1ADD Line Protection Card

Why This Line Protection Card Safeguards Turbine Electrical Lines

The GE DS200LRPAG1A DS200LRPAG1ADD monitors electrical lines connected to Mark V turbines. This card detects overcurrent, undervoltage, and frequency anomalies. It triggers protective actions before equipment damage occurs. For this reason, the GE DS200LRPAG1A DS200LRPAG1ADD prevents costly turbine downtime and repairs. It also isolates faulty lines from the rest of the system.

Technical Specifications of the Card

We engineer this GE DS200LRPAG1A DS200LRPAG1ADD for fast fault detection. It operates on a 24V DC power supply with ±10% tolerance. The card features three voltage sensing channels for line monitoring. It also includes three current transformer inputs for overcurrent detection. On‑board capacitors provide energy storage for trip circuit operation.

Specification	Value	Additional Notes
Full Model	GE DS200LRPAG1A DS200LRPAG1ADD	Line Protection Card
Power Supply	24V DC ±10%	Standard industrial level
Voltage Channels	Three AC inputs	0‑600V via potential transformers
Current Channels	Three CT inputs	0‑5A secondary from CTs
Protection Functions	Overcurrent, undervoltage, overfrequency	Programmable trip thresholds
Trip Output	Two relay contacts	Form C, rated at 5A
Response Time	Less than 50 milliseconds	Fast fault clearing
Energy Storage	Capacitor bank	3300µF for trip energy
Dimensions	185mm x 110mm x 55mm	Fits Mark V protection racks
Weight	0.62 kg (approximately)	Moderate weight for reliability
Interface Type	Backplane connector + terminal block	Heavy‑duty for field wiring
Component Count	86 discrete components	ICs, relays, transformers, capacitors

Hardware Architecture and Protection Logic

The GE DS200LRPAG1A DS200LRPAG1ADD includes a dedicated protection microcontroller. This processor compares measured values against programmed thresholds continuously. Moving to output side, two relays provide independent trip contacts. The card logs fault events with time stamps for later analysis. Moreover, the G1ADD revision adds enhanced harmonic filtering. This improvement prevents nuisance tripping from non‑fundamental frequencies.

Installation and Calibration Guidelines

You must de‑energize the entire cabinet before removing this card. Disconnect all voltage and current inputs from the GE DS200LRPAG1A DS200LRPAG1ADD first. Then remove the card from its rack slot carefully. Insert the replacement card into the exact same slot position. Reconnect all inputs exactly as wired on the original card. Skipping this step may cause incorrect protection coordination. Additionally, verify all trip thresholds after completing the installation.