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Product Name: Feeder Management Relay
Brand Name: GE
Model Number:750-P5-G5-D5-HI-A20-R-E-H
Country of Origin:USA
Warranty: 12 Months
Whatsapp：+86 18159889985
Email：[email protected]
Brand Name: |
General Electric |
Model Number: |
750-P5-G5-D5-HI-A20-R-E-H |
Country of Origin: |
USA |
Packaging Details: |
Original new Factory Sealed |
Delivery Time: |
Delivery time in stock |
Payment Terms: |
T/T |
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Sales Manager: |
Stella |
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Send an email: |
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Contact in Whatsapp: |
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Parameter |
Value |
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Manufacturer |
General Electric (GE) – Multilin |
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Part Number |
750-P5-G5-D5-HI-A20-R-E-H |
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Product Series |
Multilin 750/760 Feeder Protection System / SR Family |
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Product Type |
Digital Feeder Management Relay / Protection Relay |
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Phase Current Inputs (P5) |
5 A secondary |
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Zero-Sequence Current Input (G5) |
5 A secondary |
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Sensitive Ground Input (S5) |
5 A secondary |
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Control Power (HI) |
88–300 VDC; 70–265 VAC @ 48–62 Hz |
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Analog Outputs (A20) |
Eight (8) 4–20 mA analog outputs |
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LED Indication (R) |
Red LED for Breaker Closed indicator |
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Display (E) |
Enhanced backlit LCD (larger display) |
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Hardware Protection (H) |
Conformal coating for harsh/humid environments |
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Communication Protocol |
Modbus RTU, DNP 3.0 |
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Optional Communication |
10BaseT Ethernet port |
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Event Recording |
512 time-tagged events |
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Oscillography |
Up to 32 power cycles (10 records) |
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IRIG-B Time Sync |
Supported |
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Firmware Version |
6.00 |
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Hardware Revision |
J |
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Power Consumption |
≤35 VA maximum |
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Dimensions (W × H × D) |
~178 mm × 165 mm × 216 mm (7″ × 6.5″ × 8.5″) |
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Net Weight |
~7.6 kg (16.8 lb) |
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Operating Temperature |
–40°C to +60°C (–40°F to +140°F) |
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Storage Temperature |
–40°C to +80°C (–40°F to +176°F) |
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Humidity |
Up to 95%, non-condensing |
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Ingress Protection (Front) |
IP54 |
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Mounting Type |
Panel-mount with drawout case construction |
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Installation Manual |
1601-0120-AE |
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Alternative / Successor |
Multilin 850 Feeder Protection System |
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Country of Origin |
USA |
The GE 750-P5-G5-D5-HI-A20-R-E-H is a microprocessor‑based digital relay engineered by GE Multilin for comprehensive feeder management, protection, and control within medium‑voltage distribution networks. Belonging to the SR family, the GE 750-P5-G5-D5-HI-A20-R-E-H integrates advanced overcurrent protection, precise metering, eight 4–20 mA analog outputs, and robust communication capabilities into a single compact unit. The GE 750-P5-G5-D5-HI-A20-R-E-H features a large backlit enhanced display for intuitive local navigation, a drawout case to minimize maintenance downtime, and conformal coating for reliable operation in harsh industrial environments. With DNP 3.0 and Modbus protocol support, the GE 750-P5-G5-D5-HI-A20-R-E-H delivers seamless integration into modern SCADA and DCS systems while reducing lifecycle costs.
Primary feeder protection and control – solidly grounded, high‑impedance grounded, or resonant (Peterson coil) grounded distribution systems
Industrial power distribution – manufacturing plants, refineries, steel mills, chemical complexes
Utility substations – medium‑voltage feeder management and backup protection
Renewable energy integration – distributed generation (DG) interconnect protection at solar and wind farms
Bus blocking and interlocking schemes – for improved system selectivity and reliability
Load shedding – based on undervoltage and underfrequency elements
Automatic throw‑over (bus transfer) schemes – for critical load continuity
Arc flash mitigation – high‑speed fault detection for personnel safety
Back‑up protection – for transformers, feeders, and transmission lines
Commercial buildings – complex power distribution systems with multiple feeders
Drawout case construction – quick front‑access replacement without removing field wiring, limiting downtime during maintenance
Conformal coating (‑H suffix) – protects internal electronics from moisture, airborne contaminants, and corrosion in harsh industrial environments
Eight 4–20 mA analog outputs – simplifies integration with SCADA, PLCs, and external monitoring systems for real‑time process data
Enhanced backlit LCD display (‑E suffix) – large 40‑character screen with intuitive keypad and MENU‑driven navigation for simplified local operation
EnerVista 750/760 Setup software – comprehensive graphical interface for configuration, monitoring, maintenance, and post‑event analysis with COMTRADE and Sequence of Events viewers
Advanced fault recording and diagnostics – 512 event records, oscillography capture up to 32 power cycles, IRIG‑B time synchronization, and data logging for post‑mortem analysis
Wide‑range control power (HI) – accepts 88–300 VDC or 70–265 VAC, eliminating the need for external power conversion
Built‑in metering and monitoring – full electrical measurements including current, voltage, power, energy, sequence components, and breaker wear
Simulation mode – allows end‑to‑end testing and commissioning without applying live power
Flash memory – field‑upgradable firmware for ongoing enhancements and protection updates
Feeder protection – provides instantaneous and time‑overcurrent protection (phase, ground, negative sequence), directional overcurrent, and restricted earth fault for distribution feeders
Voltage and frequency protection – monitors undervoltage, overvoltage, neutral overvoltage, underfrequency, frequency decay, reverse power, and synchrocheck
Breaker management – tracks breaker trip count, calculates per‑phase contact wear, and monitors failure to respond (trip/close supervision) with programmable alarm thresholds
Event recording and fault location – captures 512 time‑tagged events and calculates fault distance/impedance for the last 10 faults, aiding rapid root‑cause analysis
Data logging and oscillography – records up to eight data logging channels of critical parameters (e.g., current, power, temperature) and captures up to 32 power cycles of AC waveforms and logic status for detailed disturbance analysis
Control and automation – executes load shedding, automatic bus transfer, cold load pickup, and power factor control schemes based on user‑programmable setpoints and logic
Communications – exchanges real‑time data with SCADA or DCS via Modbus RTU and DNP 3.0 protocols (RS485), with optional 10BaseT Ethernet for higher‑bandwidth integration
Q1: What does each suffix in the part number 750‑P5‑G5‑D5‑HI‑A20‑R‑E‑H represent?
A1: P5 = 5A phase CT inputs; G5 = 5A zero‑sequence CT input; D5 = advanced protection package (voltage, frequency, synchrocheck, arc flash); HI = high‑range control power; A20 = eight 4–20 mA analog outputs; R = red breaker closed LED; E = enhanced display; H = conformal coating for humidity/corrosion protection.
Q2: Is the GE 750‑P5‑G5‑D5‑HI‑A20‑R‑E‑H discontinued, and what is the recommended alternative?
A2: Yes. The 750/760 series is discontinued. GE now recommends the Multilin 850 Feeder Protection System as the direct high‑performance replacement.
Q3: Does the GE 750‑P5‑G5‑D5‑HI‑A20‑R‑E‑H support field firmware upgrades?
A3: Yes. The GE 750‑P5‑G5‑D5‑HI‑A20‑R‑E‑H incorporates flash memory, enabling firmware updates in the field without replacing hardware components.
Q4: What communication protocols are available on the GE 750‑P5‑G5‑D5‑HI‑A20‑R‑E‑H?
A4: The GE 750‑P5‑G5‑D5‑HI‑A20‑R‑E‑H supports Modbus RTU and DNP 3.0 level 2 via its rear RS485 port, with an optional 10BaseT Ethernet port for higher‑speed network integration.
Q5: Can the GE 750‑P5‑G5‑D5‑HI‑A20‑R‑E‑H be used for arc flash mitigation?
A5: Yes. The GE 750‑P5‑G5‑D5‑HI‑A20‑R‑E‑H provides high‑speed fault detection capabilities suitable for arc flash reduction and personnel safety applications.
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