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Product Name: High Speed Transformer Protection Relay
Brand Name: GE
Model Number:745-W2-P5-G5-HI-R-E-H
Country of Origin:USA
Warranty: 12 Months
Whatsapp：+86 18159889985
Email：[email protected]
Brand Name: |
General Electric |
Model Number: |
745-W2-P5-G5-HI-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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The GE Multilin 745-W2-P5-G5-HI-R-E-H is a Transformer Management Relay designed for primary protection and management of medium to large power transformers . The 745-W2-P5-G5-HI-R-E-H features a two-winding, 5 A configuration with enhanced LCD display and restricted ground fault protection . This GE 745 unit includes conformal coating (H option) for harsh industrial environments . The 745-W2-P5-G5-HI-R-E-H integrates differential, overcurrent, and thermal protection while offering advanced monitoring and communications capabilities .
Adaptive protection: Dynamic CT ratio mismatch correction, overexcitation protection, transformer overload protection, frequency rate-of-change detection
Enhanced LCD display: 40-character screen with improved menu navigation
Restricted Ground Fault protection: Low impedance current differential scheme
Conformal coating: Protects against dust, humidity, and chemicals (H option)
Comprehensive metering: Current, voltage, power, energy, and harmonic analysis
Fully drawout case: Automatic CT shorting for safe removal
Protects transformers against faults, overloads, and electrical disturbances
Monitors transformer health with loss-of-life and hottest-spot calculations
Records events and captures waveform data for fault analysis
Communicates system status via Modbus RTU / DNP 3.0 protocols
Displays real-time metering and diagnostics on 40-character LCD
Enables remote monitoring and control through optional Ethernet
Q1: What does the model number 745-W2-P5-G5-HI-R-E-H mean?
A1: W2 = two windings, P5 = 5 A phase CTs, G5 = 5 A ground CTs, HI = 90–300 VDC / 70–265 VAC control power, R = restricted ground fault, E = enhanced display, H = conformal coating .
Q2: What protection functions does the 745-W2-P5-G5-HI-R-E-H provide?
A2: The 745-W2-P5-G5-HI-R-E-H provides differential, overcurrent, ground fault, thermal, overexcitation, and transformer overload protection .
Q3: What is the restricted ground fault (R) option?
A3: The R option provides sensitive ground fault detection for impedance-grounded wye windings, using a low impedance current differential scheme .
Q4: What does the H (harsh environment) option provide?
A4: The H option applies a conformal coating to the PCB, protecting against dust, humidity, temperature extremes, and chemicals .
Q5: What communication protocols does the 745-W2-P5-G5-HI-R-E-H support?
A5: The 745-W2-P5-G5-HI-R-E-H supports Modbus RTU and DNP 3.0 protocols via RS232/RS485 ports .
Enquiry Now : [email protected]
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