GE Multilin 760-P1-G1-S1-HI-A20-R Multilin Feeder Management Relay

GE Multilin 760-P1-G1-S1-HI-A20-R is a digital protection relay engineered for the comprehensive management, primary protection, and control of distribution feeders. This feeder protection system incorporates advanced overcurrent protection, voltage monitoring, and metering capabilities within a draw-out construction. It features full integration with the EnerVista software suite to facilitate streamlined configuration and event analysis.

Description

The GE Multilin 760-P1-G1-S1-HI-A20-R serves as a digital relay intended for the management and primary protection and control of distribution feeders. The device provides comprehensive protection functions for feeders and back-up protection for buses, transformers, and transmission lines. Equipped with accurate built-in metering functions, it measures current, voltage, sequence components, power, energy, and voltage. The relay possesses robust communication interfaces, utilizing multiple protocols such as ModBus RTU, DNP 3.0 Level 2, and ModBus RTU TCP/IP over an optional 10Mbps Ethernet port. It is suitable for applications in solidly grounded, high-impedance grounded, or resonant (Peterson Coil) grounded distribution systems. The architecture allows complete asset monitoring, system simulation, and advanced fault localization to enhance grid stability and equipment management.

Features

• Complete protection functions for feeders and back-up protection for bus, transformers, and transmission lines.
• Draw-out construction minimizes replacement time and maintenance efforts.
• Accurate built-in metering functions eliminating the need for auxiliary metering devices.
• Comprehensive equipment management including a trip counter, trip coil monitoring, and breaker contact wear calculations.
• Flash memory for convenient product field upgrades.
• IRIG-B time synchronization input for accurate event stamping.
• Advanced oscillography and data logger supporting up to 256 power frequency cycles of waveform data.
• Powerful built-in simulation features for verifying relay functionality against pre-fault, fault, and post-fault conditions.

Applications

• Primary protection and control for distribution feeders on solidly grounded, high impedance grounded, or resonant (Peterson Coil) grounded systems.
• Bus blocking and interlocking schemes.
• High-speed fault detection for arc flash mitigation.
• Throw over schemes (bus transfer scheme applications on loss-of-source).
• Load shedding schemes based on voltage and frequency elements.
• Back-up protection for transmission lines, feeders, and transformers.
• Distributed Generation (DG) interconnect protection.

Ordering Information

Technical Specifications

Connections/Interfaces

Installation Guidelines

• Grounding: Ensure reliable connection of the chassis ground to the substation safety ground grid via terminals G11/G12.
• Shielding: Instrument and communication cable shields must be grounded at the PLC/computer end only to avoid ground loops.
• Mounting: The device utilizes a draw-out construction designed for panel cutout installation.
• Wiring: Current transformer (CT) secondary inputs must be routed through automatic shorting terminals to ensure safety during maintenance.
• Passcode Protection: Configure the optional software passcode to prevent unauthorized setpoint changes from the front panel or communication ports.

Compliance and Certifications

• cULus: UL508, UL1058, C22.2 No 14
• CE: EN60255-5, EN50263

• Type Tests Compliance: EN60255-5, IEC 61000-4-18, IEC 60255-22-1, EN61000-4-2, IEC 60255-22-2, EN61000-4-3, IEC 60255-22-3, EN61000-4-4, IEC 60255-22-4, EN61000-4-5, IEC 60255-22-5, EN61000-4-6, IEC 60255-22-6, CISPR11, CISPR22, IEC 60255-25, IEC 60255-21-1, IEC 60255-21-2, IEC 60255-21-3, IEC 61000-4-8, IEC 61000-4-9, IEC 61000-4-11, IEC 60529, IEC 60068-2-1, IEC 60068-2-2, IEC 60068-2-30, IEEE/ANSI C37.90.1, IEEE/ANSI C37.90.2, IEEE/ANSI C37.90.3, UL508, UL C22.2-14, UL1053