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
      Get Repair Quote
      Name
      Company *
      Phone *
      Email *
      Address
      City
      State / Province / Region
      Zipcode
      Country
      Quantity *
      Part Number *
      Manufacturer
      Preferred Condition
      Additional Information
      Cancel

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

      TRANSFORMER MANAGEMENT RELAY

      Product Information

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

      • Manufacturer:
        General Electric
      • Product Category:
        PLC System
      • 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
      • Stock:
        40

      • New and original with factory sealed packing

        Brand new and 100% original unit, supplied in factory-sealed packaging, ensuring untouched condition and full manufacturer integrity.

      • New in opened package

        These parts are new. They have not been used, but their original packaging has been opened or the packaging is significantly aged.

      • New surplus

        New surplus item in unused condition, originally manufactured for distribution but not deployed in service.

      • Refurbished

        This product has been repaired by an authorized service center, and worn or aged parts have been replaced with qualified genuine parts. Warranty terms are subject to refurbishment certification and service policies.
      By purchasing this item, you agree to the Terms & Conditions
      Moore Automated is NOT an authorized distributor of General Electric
      right background
      1-year warranty

      All our products come with a 1-year warranty for your peace of mind.

      Service means taking a customer problem and making it your own challenge. Years of experience and listening skills enable us to think and act quickly and accordingly. You have a problem? – We have the solution!
      Moore Automated is not an authorized distributor, reseller or representative of the products featured on this website.
      All product names, trademarks, brands and logos used on this site are the property of their respective owners. The depiction, description or sale of products featuring these names, trademarks, brands and logos is for identification purposes only and is not intended to indicate any affiliation with or authorization by any rights holder.
      Learn More Policy
      • Order Online:
        We have been working hard to update our inventory.

        If we have stock or parts available for new factory purchases, you can contact the order online. If we do not currently have an inventory, the displayed quantity will show “Ask”. Please create an online quote or contact us by phone, fax or email to check availability.
      • Order by:
        You can also contact us by phone, fax or email to order. We are here to help you!
      • E-mail:
        We need the following information to process your order quickly and accurately: Your complete ship and receipt information
      • Delivery:
        How do you want to ship? Shipping information
      • Payment:
        How will you pay? Payment procedure
      Learn More Policy
      Quantity*
      Mobile*
      Company
      E-mail*
      Content*
      Upload (gif, jpg, jpeg, png, bmp, doc, docx, xls, xlsx, ppt, pdf, csv)
      Get a Quote

      Quick Search

      • Part or Model Number

        • 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 ()

          • Filter by Manufacturer

          • Filter by Category

          Featured Manufacturers

          FAQ

          • 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.

          Learn More

          Why Choose Moore Automated?
          • 1. Fuzzy Search: Even if the tags you provide are unclear or the model number is incomplete, our 20 years of experience can help you accurately locate the correct model.
          • 2. Compatibility Testing: For critical equipment, we can provide on-board test videos or samples for small-scale verification to ensure everything is perfect before mass production shipment.
          • 3. Lifetime Traceability: Every product we ship is recorded. Even 20 years later, if you contact us again, we can still find the batch information from that year.
          • 4. After-Sales Guidance: After receiving the module, if you encounter installation or debugging problems, our engineers will provide remote technical support until the equipment is running smoothly.
          Moore Automated's Sales Territory
          • 1. Middle East and Africa: Saudi Arabia, United Arab Emirates, South Africa. Primarily focused on providing automation solutions for the oil and gas, energy, and heavy industries.
          • 2. North America: the United States, Canada, and Mexico. This includes industries such as energy, electricity, manufacturing, and oil and gas.
          • 3. South America: Brazil, Argentina, Chile. Strong demand for automation exists in the steel, mining, and infrastructure industries.
          • 4. Europe: Germany, United Kingdom, France, Netherlands. Widely used in manufacturing, chemical, energy and other fields.
          • 5. Asia Pacific region: China, India, Japan, South Korea, and Australia. The rapid growth of Asian manufacturing and the digitalization of industry are driving continued growth in demand for automated spare parts and systems.

          • 20 Years of Excellence in Industrial Automation Supply

            For over 20 years, Moore Automated has been a trusted leader in the industrial automation supply industry. As a dependable automation parts supplier, we’ve expanded our product lines, grown a global customer base, and earned repeated recognition as a Most Trusted and Reliable Supplier Award.

            Our long-standing success reflects our commitment to quality, reliability, and customer satisfaction. Whether you’re sourcing hard-to-find components or need expert repairs, Moore Automated stands out among industrial automation parts suppliers for our experience, service, and unbeatable 1-year warranty.

          • Unbeatable 1-Year Warranty on Industrial Automation Parts

            When it comes to industrial automation supply, Moore Automated leads the way with exceptional quality and reliability. All of our PLC, DCS spare parts and repair services are backed by an unbeatable 1-year warranty, giving you the confidence you deserve when choosing an automation parts supplier.

            As one of the most trusted industrial automation parts suppliers, we understand the importance of dependable performance. That’s why we go beyond industry standards—offering a 1-year warranty that outperforms typical coverage. Whether you’re replacing obsolete components or maintaining critical systems, Moore Automated provides the high-quality parts and expert repairs you need.


            Choose Moore Automated

          • Emergency Shipping Available for Industrial Automation Parts

            Downtime can cost you time and money—Moore Automated is here to help. As a reliable automation parts supplier, we offer emergency shipping to get critical components to you fast and minimize disruptions.

            With two decades of experience in industrial automation supply, we understand how vital speed and reliability are. That’s why we’re proud to be one of the few industrial automation parts suppliers offering urgent shipping options to keep your operations running smoothly.


            Need it now? Count on Moore Automated for fast, dependable emergency delivery backed by our unbeatable 1-year warranty.

          Related Products

          Top General Electric Products

          Customers Also Viewed

          Browsing history

          Differentiated sales services

          background
          01

          Discontinued Systems

          We are the leading parts supplier for maintaining systems that have been discontinued by the manufacturer
          02

          Same-Day Shipping

          1 million+ products shipped same-day, millions more available with free expedited processing
          03

          Speed

          Time is money. This is especially true in your industry, and we know it. You can count on us to deliver spare parts quickly for systems from all manufacturers.
          04

          Spare parts warehouse

          With 50,000 square meters of storage space, we have a large selection of high-quality control system parts available to you 24/7. Availability is critical to both you and us.
          05

          Price Stability

          Being open to our customers is especially important to us. That's why we offer you automation components at fair and stable prices.
          Contact Background Background

          Need More Help?

          miya@mvme.cn
          +86 180 2077 6792
          Contact