GE 850‑E‑P1‑NN‑S1‑H‑N‑N‑A‑L‑A‑M‑A‑P‑C‑C‑SE‑N‑N‑B‑4‑1 Generator Protection and Control

Product Description

GE Multilin 850 Feeder Protection & Control IED, Model 850‑E‑P1‑NN‑S1‑H‑N‑N‑A‑L‑A‑M‑A‑P‑C‑C‑SE‑N‑N‑B‑4‑1. It belongs to GE Vernova 8‑series platform with English language interface. Configured with P1 (1 A phase‑current input), NN no second‑bank current input, S1 ground‑current module and H universal AC/DC power supply. Equipped with SE communication option. This unit integrates full‑set feeder protection, metering & control, disturbance recording and FlexLogic programmable logic. Adopting draw‑out plug‑in hardware design, it implements comprehensive ANSI protection elements and supports mainstream power‑system communication protocols for primary and backup protection of distribution feeders. Supported by EnerVista software for parameter setting, commissioning and post‑fault analysis, widely used in industrial and utility power‑system retrofitting projectsGE Vernova.

Technical Specifications

1. Power Supply: H module, 110‑230 VAC / 110‑250 VDC; Max. power consumption 32 W
2. Current Input: P1‑1 A three‑phase phase‑current input; S1 ground‑current input; NN no second‑bank current channel
3. Communication (SE): Front‑panel USB, dual RJ45 Ethernet ports; Support Modbus TCP/RTU, DNP3.0, IEC60870‑5‑104, IEC61850; IEEE1588 time‑synchronization supported
4. Protection Functions: Phase & ground time‑over‑current (51P/51G), instantaneous overcurrent (50P/50G), negative‑sequence overcurrent, directional protection, over‑/under‑voltage, over‑/under‑frequency, breaker‑failure protection, arc‑flash protection, synchro‑check, thermal overload and other ANSI‑standard protection elementsGE Vernova
5. Logic: FlexLogic programmable logic engine, virtual I/O, multi‑setting‑group selection, custom protection & control schemes
6. Recording: Fault report, sequence‑of‑event log, disturbance recording, operation counter
7. I/O: Built‑in digital input/output, expandable I/O modules
8. Environmental & Dielectric: Compliant with IEC60068‑2; Dielectric withstand meets IEEE C37.90; Operating temperature:‑40℃ ~ +85℃
9. Mechanical: Draw‑out plug‑in chassis, panel‑mount design for easy on‑site maintenance & replacement

Product Applications

1. Utility distribution networks: Primary and backup protection for overhead lines and cable feeders
2. Industrial power plants: Protection & control for plant‑internal distribution circuits, busbars and auxiliary‑power feeders
3. Protection, monitoring and breaker control for switchgears and ring‑main‑units
4. SCADA / DCS integration for remote measurement, signal acquisition, remote control and fault data uploading
5. Retrofit & replacement of legacy protective relays
6. Digital substation deployment complying with IEC61850 standard

Peer Series Part Numbers

1. 850‑E‑P1‑NN‑G1‑H‑N‑N‑A‑L‑A‑M‑A‑P‑C‑C‑SE‑N‑N‑B‑4‑1
2. 850‑E‑P5‑NN‑S5‑H‑N‑N‑A‑L‑A‑M‑A‑P‑C‑C‑SE‑N‑N‑B‑4‑1
3. 850‑E‑P1‑P1‑S1‑L‑N‑N‑A‑L‑A‑M‑A‑P‑1E‑C‑N‑N‑B‑4‑1
4. 850‑E‑P1‑NN‑S1‑H‑N‑N‑A‑N‑A‑M‑A‑P‑C‑C‑SE‑A‑N‑B‑4‑1
5. 850‑D‑E‑P1‑P1‑S1‑H‑N‑N‑A‑L‑A‑M‑A‑P‑C‑C‑SE‑N‑N‑B‑4‑1