GE Multilin D30 – Line Distance Protection System

$1.00

The D30 is a cost-effective distance protection system suitable for primary protection of sub-transmission lines and as a backup protection for HV, EHV lines, reactors and generators. The D30 provides five zones of phase and ground distance protection along with complete overcurrent and voltage protection functions intended for three-pole tripping applications. The D30 comes with versatile automation features using custom pilot schemes, which can be built.

  • Cost effective, 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
  • Programmable logic for building customized pilot schemes
  • Reduced relay-to-relay wiring and associated installation costs
  • Simplified teleprotection interfaces with direct I/O communications hardware
  • Robust network security enabling Critical Infrastructure Protection
  • Application flexibility
  • Ambient temperature monitoring
  • 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
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Description


Applications:

  • Overhead sub-transmission lines and underground cables including series-compensated lines
  • Circuits requiring three-pole autoreclosing and independent synchrocheck supervision
  • Circuits with in-zone power transformers
  • Secure application with Capacitively-Coupled Voltage Transformers (CCVTs)
  • Backup protection for generators, transformers and reactors

 

Protection & Control:

  • Phase distance (five zones) with independent compensation settings
  • Ground distance (five zones) with independent self and mutual zero-sequence compensation
  • Out-of-step tripping and power swing blocking
  • Phase and negative sequence directional overcurrent, neutral directional with dual polarity criteria, broken conductor and thermal overload
  • Line pickup
  • Synchronism check
  • Four-shot autorecloser
  • VT fuse failure detector
  • Customize protection and control functions with FlexLogic™, FlexCurves™, and FlexElements™

Cyber Security:

  • Password Complexity
  • AAA Server Support (Radius)
  • Role Based Access Control (RBAC)
  • Event Recorder (Syslog for SEM)

Enhanced Communications:

  • New UR process bus modules supporting IEC61850-9-2LE Merging Units and IEC61850-9-2 Hardfiber
  • Support switchable IEC 61850 Ed. 1 and Ed. 2 and redundant SNTP
  • New UR front panel with integrated 7” color, graphical display – providing operators with enhanced situational awareness
  • High density I/O module supporting up to 120 inputs or up to 72 contact outputs – eliminating the need for additional discrete devices
  • Routable GOOSE (R-GOOSE) enables GOOSE messages going beyond the substation, which enables wide area protection and control applications
  • Increases GOOSE message reception up to 64 remote devices
  • IEC 61850 in line with Edition 2, IEC 61850 SCL file for all relay’s setting
  • IRC module that combines C37.92 multi mode and direct connection single mode
  • Three independent Ethernet ports
  • Time synchronization via IEEE 1588
  • PRP as per IEC 62439-3
  • IEC 60870-5-103

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