GE D60 | Line Distance Protection System

GE D60 | Line Distance Protection System

High-speed transmission line protection with single/three-pole tripping The D60 is suitable for protecting transmission lines and cables including lines equipped with series compensation. The D60 supports dual-breaker applications and can be applied in single-pole or three-pole tripping applications. The D60 is applicable to different teleprotection schemes and includes inter-relay protection communications via direct fiber as well as different interfaces. The D60 also provides synchrophasor measurement over Ethernet per IEEE C37.118.


  • Overhead lines including series compensated lines and underground cables of different voltage levels
  • Single and dual-breaker circuits requiring single/three-pole autoreclosing and independent synchrocheck
  • Circuits with in-zone power transformers and tapped transformer feeders
  • Secure application with Capacitively-Coupled Voltage Transformers (CCVTs)
  • Backup protection for generators, transformers and reactors

Key Benefits

  • High-speed, cost-effective five zone quad or mho, phase and ground distance protection
  • Reliable and secure protection on series compensated lines
  • Superior phase selection algorithm ensures secure high-speed single-pole tripping
  • Supports multiple standard and customizable pilot schemes for fast fault clearance within the protected zone
  • Reduced relay-to-relay wiring and associated installation costs through high-speed inter-relay communications
  • Flexible programmable logic for building customized schemes
  • Simplified teleprotection interfaces with direct I/O communications hardware for transfer trip and pilot-aided distance schemes
  • Phasor Measurement Unit (synchrophasor) according to IEEE® C37.118 (2011) and IEC® 61850-90-5 support
  • Three independent fiber or copper Ethernet ports for simultaneous/ dedicated network connections with advanced 1 microsecond time synchronization via LAN with IEEE 1588 support
  • Complete IEC 61850 Process Bus solution provides resource optimization and minimizes total P&C life cycle costs
  • Embedded IEC 61850 protocol
  • Increase network availability by reducing failover time to zero through IEC 62439-3 "PRP" support
  • CyberSentry™ provides high-end cyber security aligned to industry standards and services (NERC® CIP, AAA, Radius, RBAC, Syslog)

Functional Block Diagram

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