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Protection & Control
Transformer Protection

T60 Transformer Protection System
  • High-speed, three-phase, multiple winding transformer protection system.
  • Intended for the primary protection and management of small, medium and large power transformers.
T35 Transformer Protection System
  • Cost effective transformer protection for up to six windings.
  • A Digital three?phase transformer relay designed to protect any size of power transformer with up to six windings/restraints.
845 Transformer Protection System
  • High-speed draw-out multiprocessor-based relay for transformer protection and management.
  • Intended for the primary protection and management of small, medium and large power transformers
745 Transformer Protection System
  • Microprocessor-based system for primary and backup protection of small and medium sized, 2-winding, distribution transformers.
  • Advanced communications and algorithms for magnitude and phase compensation
345 Transformer Protection System
  • Microprocessor-based system for primary and backup protection of small and medium sized, 2-winding, distribution transformers
  • Advanced communications and algorithms for magnitude and phase compensation.
P841 Line terminal End IED
  • IN/VN ratings to show a generic description, change of descriptions
  • Mounting to split out the small 40TE case for software 80, change of descriptions
P642 - 2 Winding Transformer Management Relay
  • Comprehensive suite of main and back-up protection for 2 winding applications
  • High and low impedance restricted earth fault (REF), Fast reset (less than 1 cycle) circuit breaker failure element
  • Integral asset management capability: transformer thermal overload (IEEE Standard C57.91), loss of life (LOL) and through fault monitoring
  • IEC 61850/DNP 3.0 redundant Ethernet, supporting self-healing ring, RSTP, dual homing, PRP or HSR
P643 - 3 End Transformer Management Relay
  • Comprehensive protection for 3 winding transformers, or 2 winding with dual breaker feeding on one side
  • High and low impedance restricted earth fault (REF), Fast reset (less than 1 cycle) circuit breaker failure element
  • Integral asset management capability: transformer thermal overload (IEEE Standard C57.91), loss of life (LOL) and through fault monitoring
  • IEC 61850/DNP 3.0 redundant Ethernet, supporting self-healing ring, RSTP, dual homing, PRP or HSR
P645 - 5 End Transformer Management Relay
  • Comprehensive protection for 2 or 3 winding transformers, with dual breaker feeding on up to two sides
  • High and low impedance restricted earth fault (REF), Fast reset (less than 1 cycle) circuit breaker failure element
  • Integral asset management capability: transformer thermal overload (IEEE Standard C57.91), loss of life (LOL) and through fault monitoring
  • Compact 40TE Digital Substation version supporting IEC61850-9-2 LE and IEC61850-8-1 Ed 2