GE 350-E-P1-G1-H-E-E-N-P-SN-D Feeder Integrated Protection and Control Device

GE 350-E-P1-G1-H-E-E-N-P-SN-D Product Description
I. Basic Product Information
Full Product Name: GE Multilin 350 Series Feeder Integrated Protection and Control Device (Feeder Protection System)
Brand: GE Vernova (formerly GE Grid Solutions)
Product Type: Microprocessor-based Relay Protection Device (Integrated Protection, Feeder Protection Relay)

Model Code Breakdown (350-E-P1-G1-H-E-E-N-P-SN-D)
350: Product series, dedicated feeder protection on the 3-series relay protection platform
E: Standard English user interface, without programmable indicator lights
P1: Three-phase current input specification of 1A (CT secondary rated at 1A)
G1: Ground zero-sequence current input specification of 1A (sensitive grounding with 1A sampling)
H: Power supply: universal wide-range AC/DC power input from 125 to 250V
E: No voltage acquisition circuit (no VT voltage transformer input)
E: No environmental protection coating (standard industrial environment use, non-corrosion-resistant version)
N: No additional control functions selected
P: Standard I/O configuration: 10 digital inputs and 7 relay outputs
SN: Standard communication: front-panel isolated USB port + rear-mounted RS485 communication interface (Modbus RTU protocol)
D: Drawout cabinet structure for easy maintenance and replacement without power interruption

Core Function Overview
1. Protection Functions (Main Feeder Protection Configurations)
Three-phase / zero-sequence / ground time-delay and inverse-time overcurrent protection
Three-phase and ground instantaneous overcurrent trip protection
Cold load start interlock, circuit breaker failure protection
Up to four reclosing functions, fault recording, event sequence recording (SOE)
Arc flash fault detection protection, two sets of protection settings remotely or locally switchable
16 programmable logic elements for custom interlocking and tripping logic

2. Measurement and Monitoring Functions
Accurate measurement of three-phase current, ground current, energy consumption, power, and online temperature monitoring
Device self-diagnosis, ambient temperature monitoring, fault alarms, and operational status diagnostics
Fault waveform recording, storage of fault events, supporting fault trace analysis

3. Communication Configuration
Front-panel isolated USB: local EnerVista software debugging, parameter downloading, and waveform export
Rear-mounted RS485: Modbus RTU protocol, connecting to SCADA power monitoring systems for remote “four-remote” operations (telemetry, teleindication, telecontrol, and remote adjustment)

Typical Application Scenarios
Main and backup protection for feeder circuits in low- and medium-voltage switchgear in industrial and mining enterprises and municipal power distribution
Relay protection for distribution lines, cable lines, and pole-mounted lines
Backup protection for small distribution transformers, capacitor banks, and low-voltage motors
Protection and monitoring for plant power circuits in power plants and substations