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Product Name: Feeder Management
Brand Name: GE
Model Number:750-P5-G5-D5-HI-A20-R
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 |
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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Part Number |
750-P5-G5-D5-HI-A20-R |
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Manufacturer |
GE Multilin / General Electric |
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Series |
750/760 Feeder Management Relay |
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Country of Origin |
United States (USA) |
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Instruction Manual |
GEK-106471N |
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Control Power |
HI: 88–300 VDC / 70–265 VAC, 48–62 Hz |
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Phase Current Inputs |
P5: 5 A (1 A optional) |
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Zero-Sequence Inputs |
G5: 5 A (1 A optional) |
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Sensitive Ground Input |
D5: 5 A (1 A optional) |
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Analog Outputs |
A20: 8 channels, 4–20 mA |
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Breaker LED Color |
R: Red |
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Display Type |
E (Enhanced), larger backlit LCD |
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Communication |
RS232, RS485, Modbus RTU, DNP 3.0, IEC 60870-5-103 |
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Protection Elements |
Phase IOC/TOC, Ground TOC, Neutral IOC, Sensitive Ground IOC, Negative Sequence IOC/TOC, Over/Undervoltage (27/59), Under/Overfrequency (81), Breaker Failure, Breaker Arcing Current |
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Drawout Mechanism |
Yes, for quick maintenance and replacement |
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Mounting |
Drawout construction with companion case |
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Weigth |
5.08kg |
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Dimensions |
18.5x17.8x23cm |
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Operating Temperature |
–40°C to +60°C |
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A/D Conversion |
16-bit |
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Waveform Capture |
64 samples/cycle |
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Status LEDs |
4 programmable LEDs + Trip & Alarm LEDs |
The 750-P5-G5-D5-HI-A20-R is a high control power range feeder management relay from GE Multilin's 750/760 series, engineered for medium and high-voltage feeder protection [0†L10-L12]. Designed for primary protection of distribution feeders, the 750-P5-G5-D5-HI-A20-R offers comprehensive protection functions including overcurrent, ground fault, and voltage/frequency monitoring, all within a drawout construction that simplifies maintenance and reduces downtime. With 5 A inputs for phase, zero-sequence, and sensitive ground currents, and eight 4–20 mA analog outputs, the 750-P5-G5-D5-HI-A20-R provides advanced metering, monitoring, and seamless SCADA integration for enhanced operational visibility.
Primary protection of medium and high-voltage distribution feeders in industrial and utility systems
Backup protection for bus, transformers, and transmission lines
Automatic load shedding schemes based on underfrequency detection
Directional overcurrent protection for multi-source feeders
Restricted Earth Fault protection for transformers without dedicated protection
Motor feeder protection with comprehensive fault detection
High control power range: Operates on 88–300 VDC or 70–265 VAC, adaptable to diverse power supply configurations
5 A current inputs: Phase (P5), zero-sequence (G5), and sensitive ground (D5) inputs for precise fault detection
Eight 4–20 mA analog outputs: Eight analog outputs for seamless integration with SCADA, DCS, and external monitoring devices
Drawout construction: Facilitates quick relay replacement and maintenance without rewiring, minimizing system downtime
Advanced communications: Supports multiple protocols including Modbus RTU, DNP 3.0, and IEC 60870-5-103 for flexible system integration
Comprehensive protection suite: Includes phase overcurrent, ground fault, neutral overcurrent, negative sequence, voltage, frequency, and breaker failure protection
Conformal coating: Protects internal electronics from moisture, dust, and chemical contaminants for enhanced reliability in harsh environments
High-accuracy metering: High-accuracy metering of voltage, current, power, and energy for comprehensive power system monitoring
Detects and clears feeder faults through multiple protection elements: phase-time overcurrent (51P), instantaneous overcurrent (50P), ground time overcurrent (51G), neutral instantaneous overcurrent (50N), and sensitive ground (50SG)
Performs voltage and frequency monitoring with undervoltage (27), overvoltage (59), underfrequency (81U), and overfrequency (81O) elements for load shedding and grid stabilization
Executes breaker control and monitoring, including breaker failure protection (50BF) and arcing current monitoring to track contact wear and schedule preventive maintenance
Provides high-accuracy metering of current, voltage, power, power factor, and energy for system performance analysis and billing applications
Captures oscillography and event records with 64 samples/cycle resolution for post-fault analysis
Enables directional overcurrent control for selective tripping on multi-source feeders, ensuring only the faulted section is isolated
Q1: What does the part number 750-P5-G5-D5-HI-A20-R signify?
A1: 750 = feeder relay (760 includes autoreclose), P5 = 5 A phase CT, G5 = 5 A zero‑sequence CT, D5 = 5 A sensitive ground, HI = high control power (88–300 VDC / 70–265 VAC), A20 = eight 4–20 mA analog outputs, R = red breaker closed LED.
Q2: What are the key protection functions of the 750-P5-G5-D5-HI-A20-R ?
A2: Includes phase overcurrent, ground fault, sensitive ground, neutral overcurrent, negative sequence, over/undervoltage, over/underfrequency, breaker failure, and breaker arcing current monitoring.
Q3: What communication protocols does the 750-P5-G5-D5-HI-A20-R support?
A3: Supports Modbus RTU, DNP 3.0, and IEC 60870-5-103 for flexible integration with SCADA, DCS, and automation systems.
Q4: Is the 750-P5-G5-D5-HI-A20-R hot-swappable?
A4: Yes, the drawout case design allows removal and replacement without disturbing field wiring, minimizing system downtime.
Q5: How do I upgrade the firmware on my 750-P5-G5-D5-HI-A20-R ?
A5: Use the enerVista 750/760 Setup software with a serial connection to the relay‘s RS232 port and follow the firmware upgrade instructions in the manual. Ensure you have saved all existing settings before proceeding.
Inguiry Now: [email protected]
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