Transmission Protection

Multilin D60

Request Information
Request a Quote

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.

Key Benefits
  • Five zone quad or mho, phase and ground distance protection

  • Advanced IEC 61850 Ed. 1 and Ed. 2 certified implementation, complete settings via SCL files and flexible process bus support (IEC 61850-9-2LE or IEC 61850-9-2 Hardfiber) ensures interoperability, device managing optimization and reduced cost of ownership

  • Routable GOOSE (R-GOOSE) enables GOOSE messages going beyond the substation, which enables wide area protection and control applications

  • Reliable and secure protection on series-compensated lines

  • Superior phase selection algorithm

  • Supports multiple standard pilot schemes

  • Flexible programmable logic for building customized schemes

  • Simplified teleprotection interfaces with direct I/O communications

  • Robust network security enabling Critical Infrastructure Protection

  • Phasor Measurement Unit (synchrophasor) according to IEEE® C37.118 (2011) and IEC® 61850-90-5 support

  • Application flexibility with multiple I/O options including high density I/O, programmable logic, modularity, and specific customization

  • An integrated large, full color display, provides real-time visualization and control of the protected bay, via a bay mimic as well as annunciator functionality and graphical visualization of phasors

  • Overhead lines including series-compensated lines and underground cables

  • Single and dual-breaker circuits requiring single pole/three-pole autoreclosing

  • Circuits with in-zone power transformers

  • Secure application with CCVTs backup protection for generators, transformers and reactors

Protection & Control

The D60 is a high-end, cost-effective distance protection relay intended for protecting transmission lines and cables, providing reliable and secure operation even under the worst case power system conditions. Part of the Universal Relay family, the D60 comes with a variety of versatile features, truly integrating protection, monitoring, metering, communication and control in one easy-to-use device. The Universal Relay family offers a high degree of modularity in its design and functionality, providing superior performance in protection and control, while meeting the toughest requirements of the marketplace.

Functional Block Diagram