Fast Quote About Us FAQ Contact Us
  • Please try to be as accurate as possible with your search.
  • We can quote you on 1000s of specialist parts, even if they are not listed on our website.
  • We can't find any results for “”.
    SEE MORE
      SEE PRODUCTS IN SEARCH PAGE ()
      Fast Quote About Us FAQ Contact Us
      Request a Parts Quote
      Name
      Company *
      Phone *
      Email *
      Address
      City
      State / Province / Region
      Zipcode
      Country
      Quantity *
      Part Number *
      Manufacturer
      Preferred Condition
      Additional Information
      Cancel

      • ISO 9001:2015 Certified

        Our quality management system covers sourcing,testing and dispatch

      • View Our Success Stories

        Real stories from real customer orders
      In Stock
      Ships by Monday, September 21
      Fast Shipping Available
      TRANSFORMER MANAGEMENT RELAY

      745-W3-P5-G5-HI-A-L-R-E-H

      Spare Part Number

      PN745-W3-P5-G5-HI-A-L-R-E-H

      Product Information:

      745 Transformer Management Relay
      digital transformer protection relay (model 745)
      designed for three-winding transformers (W3) 
      with 5A phase (P5) and ground (G5) inputs

      • One-year warranty
      • Global shipping
      • Exact-model verification
      WhatsApp: +86 180 2077 6792 Email parts team
      01


      Model Verified

      Model, revision and nameplate reviewed
      02


      Email confirmation

      You will get an email confirming that we have received your enquiry
      03


      Dedicated Account Manager

      One of our team will be in touch to confirm your part(s) specification and condition
      04


      Your quote

      You will receive a comprehensive quote tailored to your specific needs
      Technical specifications for

      745-W3-P5-G5-HI-A-L-R-E-H

      0 TECHNICAL PARAMETERS
      • Manufacturer:
        General Electric
      • Product Category:
        General Automation
      • Spare Part Number:
        745-W3-P5-G5-HI-A-L-R-E-H
      • Estimated shipping dimensions:
        20.8x22x24.6cm
      • Weight:
        7.54 kg
      • Tariff Code:
        8537101190
      • Country of origin:
        USA
      • Place of shipment:
        Xiamen, Fujian, China
      • Unit Series:
        745 Transformer Protection Systems
      • Ground Current Inputs:
        5A
      • Ambient Operating Temperature:
        –40°C to +60°C
      • Ambient Storage Temperature:
        –40°C to +80°C
      • CT Inputs::
        5A phase / 5A ground (P5, G5)
      • Series:
        GE Multilin
      • Stock Availability:
        40
      Ask for Quote
      WHAT HAPPENS NEXT?

      From enquiry to delivery

      Six clear steps show what information is required and what the written quotation will contain.
      • 01

        Find the product

        Search the part number or send an inquiry for obsolete, discontinued or hard-to-find parts.
      • 02

        Provide the details

        Share the exact part number, quantity, condition, revision, destination and any required certificates or photos.
      • 03

        Review the quotation

        Receive price, currency, condition, availability, warranty, lead time, shipping terms and quotation validity in writing.
      • 04

        Confirm the order

        Accept the quotation in writing and complete the required payment before shipment.
      • 05

        Pay by bank transfer

        Pay the full invoiced amount by bank wire in RMB/CNY, GBP, EUR or USD using the official invoice details.
      • 06

        Verify and dispatch

        The item receives a pre-shipment inspection and suitable protective packaging. Functional testing is performed only where appropriate equipment and procedures are available for the specific item. We confirm the applicable inspection scope and provide tracking after dispatch.
      Request a Verified Quote
      BUYER INFORMATION

      Product condition level information

      Commercial details are confirmed in writing before payment.
      • 01

        Factory Sealed

        Unused product with the original factory seal intact; packaging age or storage marks may still be present.

        view
      • 02

        Original Pack

        Unused product in original manufacturer packaging that was not originally factory sealed.

        view
      • 03

        Factory New

        New and current product sourced through the manufacturer or authorized supply channel when expressly confirmed in the quotation.

        view

      Alternative Names

      745W3P5G5HIALREH 745 W3 P5 G5 HI A L R E H
      PRODUCT & ORDER FAQS

      Questions buyers ask about 745-W3-P5-G5-HI-A-L-R-E-H

      • What is the primary purpose and protection domain of the 745‑W3‑P5‑G5‑HI‑A‑L‑R‑E‑H within power transformer control architectures?

        The 745‑W3‑P5‑G5‑HI‑A‑L‑R‑E‑H is a microprocessor‑based transformer protection system from the GE Multilin 745 series, specifically engineered to deliver comprehensive protection, monitoring, and control for three‑winding power transformers deployed in utility and industrial power networks. It integrates multiple protective elements such as differential and overcurrent functions into a single solid‑state relay platform.

      • How does the model designation 745‑W3‑P5‑G5‑HI‑A‑L‑R‑E‑H encode its protective and measurement capabilities?

        In the 745‑W3‑P5‑G5‑HI‑A‑L‑R‑E‑H code, “W3” denotes a three‑winding protection configuration, “P5” and “G5” signify 5 A phase and ground current inputs respectively, and the suffix options “HI‑A‑L‑R‑E‑H” represent high control power (HI), analog I/O (A), loss‑of‑life assessment (L), restricted ground fault detection (R), enhanced display (E), and harsh‑environment conformal coating (H).

      • What advanced protective functions are inherent in the 745‑W3‑P5‑G5‑HI‑A‑L‑R‑E‑H relay to mitigate transformer faults?

        The 745‑W3‑P5‑G5‑HI‑A‑L‑R‑E‑H provides a suite of protective algorithms, including percent differential protection (87T), overcurrent protection (50/51), under/overvoltage and frequency elements, restricted ground fault detection, and thermal overload assessment. These functions enable rapid fault discrimination across electrical, thermal, and grounding abnormalities.

      • In what ways does the 745‑W3‑P5‑G5‑HI‑A‑L‑R‑E‑H facilitate advanced transformer life‑cycle analytics?

        The 745‑W3‑P5‑G5‑HI‑A‑L‑R‑E‑H incorporates “loss‑of‑life” assessment logic, which continuously evaluates transformer insulation aging based on loading history and thermal patterns. This prognostic feature provides operators with actionable insights into remaining insulation life, helping schedule maintenance before critical degradation occurs.

      • Why is the high control power design (“HI”) significant in the 745‑W3‑P5‑G5‑HI‑A‑L‑R‑E‑H?

        The “HI” designation in the 745‑W3‑P5‑G5‑HI‑A‑L‑R‑E‑H indicates a high control power input range capable of operating on 90–300 VDC or 70–265 VAC, providing flexibility in substations and plant applications where control power supplies vary. This resilience in power supply tolerance enhances relay reliability under grid disturbances.

      • How does the enhanced display (“E”) and harsh environment coating (“H”) improve operational usability for the 745‑W3‑P5‑G5‑HI‑A‑L‑R‑E‑H?

        The “E” option on the 745‑W3‑P5‑G5‑HI‑A‑L‑R‑E‑H embeds an enhanced LCD and user interface that provides clear status indications, parameter readouts, and fault annunciation without external tools. Additionally, the “H” conformal coating protects internal PCBs against humidity, dust, and corrosive atmospheres, making it suitable for rigorous industrial environments.

      • What monitoring and data capture capabilities does the 745‑W3‑P5‑G5‑HI‑A‑L‑R‑E‑H provide?

        The 745‑W3‑P5‑G5‑HI‑A‑L‑R‑E‑H enables metering and trend recording of key electrical parameters, including phase currents, voltages, and event logs. Event recording functions capture time‑stamped faults and dynamics, facilitating post‑fault analysis and condition‑based maintenance.
      All FAQ
      MORE PARTS IN THE SAME PROJECT?

      Search another part number

      Use the exact manufacturer number where possible.
      • Please try to be as accurate as possible with your search.
      • We can quote you on 1000s of specialist parts, even if they are not listed on our website.
      • We can't find any results for “”.
        SEE MORE
          SEE PRODUCTS IN SEARCH PAGE ()
          WHY BUYERS WORK WITH MOORE AUTOMATED

          Clear checks before you commit

          Product-specific verification and written commercial details help purchasing and maintenance teams reduce mismatch risk.

          • Pre-shipment inspection

            Products are inspected before dispatch to verify model, condition and applicable specifications.

          • Documentation available

            Product photos, packaging photos, certificates and datasheets can be provided when available.

          • Clear commercial terms

            Condition, warranty, lead time, included items and shipping terms are stated clearly in writing.

          • 20+ years of experience

            Over 20 years of experience in industrial automation and hard-to-source legacy parts.

          Related Products

          Browsing history

          Trusted by 5,000+ plants worldwide | Backed by our vast inventory of top-tier control parts, drives and servo motors, fast shipments are dispatched to cover your urgent needs. ABOUT US >>
          Moore Disclaimer: Moore Automated's sales automation equipment and related solutions are intended for industrial automation and business operational efficiency improvement purposes only. Product information, technical parameters, and application cases are for reference only and do not constitute an absolute guarantee of performance for any specific industry, scenario, or final application. Actual equipment performance may vary depending on factors such as the usage environment, system integration method, and maintenance conditions. Users should confirm compatibility and safety based on professional technical assessments. Moore Automated assumes no liability for any direct or indirect losses caused by improper use, modification, or failure to operate according to specifications, to the extent permitted by law.

          Get a quick price for:

          745-W3-P5-G5-HI-A-L-R-E-H
          Quantity
          Upload
          (gif, jpg, jpeg, png, bmp, doc, docx, xls, xlsx, ppt, pdf, csv)
          Get a Quote
          For more information on how your data is processed and stored by Moore Automated please read our privacy policy.