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      high-performance transformer protection relay

      745-W3-P511-G51-HI-R-E-H

      Spare Part Number

      PN745-W3-P511-G51-HI-R-E-H

      Product Information:

      GE Multilin Relay Series 
      Precision Transformer Protection for Industrial Applications
      Transformer Protection Systemfor industrial environments
      Ideal for applications requiring precise monitoring and control
      • One-year warranty
      • Global shipping
      • Exact-model verification
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      Technical specifications for

      745-W3-P511-G51-HI-R-E-H

      0 TECHNICAL PARAMETERS
      • Manufacturer:
        General Electric
      • Product Category:
        General Automation
      • Spare Part Number:
        745-W3-P511-G51-HI-R-E-H
      • Estimated shipping dimensions:
        21.6x23x25.5cm
      • Weight:
        7.8 kg
      • Tariff Code:
        8537101190
      • Country of origin:
        USA
      • Place of shipment:
        Xiamen, Fujian, China
      • Number of Windings Per Phase:
        3
      • Phase Current Input Winding:
        5A
      • Control Power Range:
        Wide range
      • Dimensions (HxWxD):
        9”H x 7 ⅛”D x 7”W
      • Display Size:
        40 character Enhanced LCD
      • Series:
        GE Multilin
      • Stock Availability:
        40
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      • 03

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      Alternative Names

      745W3P511G51HIREH 745 W3 P511 G51 HI R E H
      PRODUCT & ORDER FAQS

      Questions buyers ask about 745-W3-P511-G51-HI-R-E-H

      • What fundamental operational role does the 745-W3-P511-G51-HI-R-E-H perform within transformer protection architectures?

        The 745-W3-P511-G51-HI-R-E-H functions as a multi-processor-based transformer protection and management relay designed to safeguard power transformers through integrated protection algorithms such as differential protection, overcurrent detection, frequency supervision, and overexcitation monitoring. Its architecture enables real-time analysis and automated protective actions to preserve transformer integrity and operational continuity.

      • How does the 745-W3-P511-G51-HI-R-E-H implement advanced transformer monitoring and predictive maintenance strategies?

        The 745-W3-P511-G51-HI-R-E-H incorporates advanced monitoring capabilities such as harmonic analysis, hottest-spot temperature monitoring, and diagnostic data processing. These analytical functions enable predictive maintenance by identifying emerging operational anomalies before they escalate into critical failures, thereby extending transformer service life and reducing unplanned downtime.

      • Which electrical protection elements are intrinsically integrated into the 745-W3-P511-G51-HI-R-E-H protection scheme?

        The 745-W3-P511-G51-HI-R-E-H integrates multiple protective elements within a unified relay platform, including percent differential protection, overcurrent protection, frequency supervision, and overexcitation detection. Additionally, it can monitor individual harmonic components and total harmonic distortion (THD) to improve fault discrimination and transformer protection accuracy.

      • What input configuration capabilities does the 745-W3-P511-G51-HI-R-E-H support for transformer measurement and control logic?

        The 745-W3-P511-G51-HI-R-E-H supports multiple measurement and control interfaces, including approximately 16 programmable logic inputs, current inputs rated at 5 A, and analog input/output channels. These features enable comprehensive monitoring of electrical parameters and facilitate integration with supervisory control systems and automation platforms.

      • In what manner does the 745-W3-P511-G51-HI-R-E-H accommodate transformers with multiple windings?

        The 745-W3-P511-G51-HI-R-E-H is engineered to supervise two- or three-winding transformers, providing phase-level current monitoring and adaptive protection logic. Its multi-processor architecture enables precise fault detection across complex transformer configurations, ensuring reliable protection in high-capacity power systems.

      • What communication and system integration capabilities distinguish the 745-W3-P511-G51-HI-R-E-H in modern automation environments?

        The 745-W3-P511-G51-HI-R-E-H supports multiple industrial communication protocols and Ethernet-based connectivity, allowing seamless interoperability with distributed control systems (DCS), supervisory control and data acquisition (SCADA) platforms, and utility automation networks. This connectivity facilitates remote diagnostics, configuration management, and real-time operational analytics.

      • How does the 745-W3-P511-G51-HI-R-E-H ensure operational resilience in harsh industrial environments?

        The 745-W3-P511-G51-HI-R-E-H is engineered with a rugged industrial enclosure and complies with numerous electromagnetic compatibility and environmental standards. It can operate across wide temperature ranges and withstand electrical disturbances such as surges, transient voltages, and electromagnetic interference, ensuring consistent performance in demanding utility and industrial installations.
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          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.

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