Line Protection
GE's transmission protection solutions deliver the speed and security necessary for advanced transmission line protection. Our specialized technology teams are well versed in transmission protection theory and build protection and control solutions that can be configured to meet a variety of applications from large to small, underground and overhead.
Restoring service to urban areas quickly requires fast and accurate fault location. Maintenance crews rely on the advanced functions of the Multilin L90 line current differential system to rapidly pinpoint the fault location.
Interactive Selector Guide – Line Differential
Interactive Selector Guide – Line Distance
Line Protection
GE's transmission protection solutions deliver the speed and security necessary for advanced transmission line protection. Our specialized technology teams are well versed in transmission protection theory and build protection and control solutions that can be configured to meet a variety of applications from large to small, underground and overhead.
Restoring service to urban areas quickly requires fast and accurate fault location. Maintenance crews rely on the advanced functions of the Multilin L90 line current differential system to rapidly pinpoint the fault location.
Interactive Selector Guide – Line Differential
Interactive Selector Guide – Line Distance
P54 MiCOM 5th Generation
The P54, part of the MiCOM P40 Agile 5th Generation family, delivers high performance processing and a graphical HMI as standard. A cost-effective range of transmission/sub-transmission class protection relays providing comprehensive line differential protection for up-to 3 line ends, with in-built subcycle transmission class distance and directional earth fault protection. This range of products is ideal for HV, EHV and UHV applications on lines and cables for 1 or 2 breaker applications with patented adaptive auto-reclose functionality.
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MiCOM P543/5/6 Agile
The P543, P545 & P546 models, part of the MiCOM P40 Agile family of protection relays, constitute a cost effective range of transmission-class protection relays providing comprehensive line differential protection for 2 or 3 line ends, subcycle distance and directional earth fault protection. This range of products is ideal for HV, EHV and UHV applications on lines and cables of any length for 1 or 2 CB applications with neutral differential for high impedance faults.
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Multilin L90
The L90, a member of the UR family of protection relays, is a transmission-class protection relay providing comprehensive line differential protection for 2 or 3 line ends, subcycle distance and directional earth fault protection. It is ideal for HV, EHV and UHV applications on lines and cables of any length for 1 or 2 CB applications. It offers a large color LCD display and integrated PMU.
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MiCOM P54 A/B/C/E Agile
The P54A/B/C/E models, part of the MiCOM P40 Agile family of protection relays, provides cost effective high speed multi-ended line differential protection for overhead line and cables up to 6 ends. The P54C and P54E support a high density of binary inputs/outputs, while the P54A and P54B offer compact line differential protection in a half-rack case.
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P44 MiCOMho 5th Generation
The P44, part of the MiCOM P40 Agile 5th Generation family, delivers high performance processing and a graphical HMI as standard. A range of transmission/sub-transmission class protection relays providing up to 9 zones of subcycle distance protection with both mho/quad characteristics and delta directional comparison (incremental) protection. In addition, distance phase preference tripping logic and transient earth fault detection (TEFD) for Petersen coil earthed and isolated systems. The P44 range of products is ideal for HV, EHV and UHV applications on lines and cables for 1 or 2 breaker applications with patented adaptive auto-reclose functionality.
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MiCOM P443, P446 Agile
The P443 and P446 models, part of the MiCOM P40 Agile family of protection relays, constitute a range of transmission-class protection relays that provide subcycle, 6 to 9 zone, distance protection with mho/quad characteristics, delta directional comparison (incremental) protection and “Virtual current polarising” of Directional Earth/Ground Fault (DEF) and settings free PSB for 1 or 2 CBs.
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MiCOM P444 Agile
The P444 model, part of the MiCOM P40 Agile family of protection relays, is a numerical distance relay that provides flexible, fast and reliable protection of transmission and sub-transmission lines. It includes full scheme 5-zone distance protection with quad characteristics, plus directional earth fault (DEF) for single breaker applications
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Multilin D60
The D60, a member of the UR family of protection relays, offers transmission-class protection that provides subcycle, 6 zone, distance protection with mho/quad characteristics and Directional Earth/Ground Fault (DEF) for 1 or 2 CBs. It offers a large color LCD display and integrated PMU.
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MiCOM P44T Agile
The P44T provides protection for railway catenary lines, supplementing a 5 zone distance main protection are a host of backup protection, thermal protection, recording, control, measurement and monitoring features. Wrong phase coupling, panto flash over, train startup and Delta I for high impedance faults protection are also included. With independently settable right and left hand side resistive reaches for each zone the P44T suits routes hosting regenerative braking trains. Protection of classic or auto transformer-fed catenaries in systems with nominal frequencies of 50 or 60 Hz.
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Multilin L30
Current differential protection for sub-transmission and MV lines and cables. Part of the UR family of relays. Includes voltage based protection, metering and check synchronizing. It offers a large color LCD display, PMU and advanced Ethernet communications with IEC 61850 station and process bus.
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MiCOM P59x Agile
This range of standalone units enables the MiCOM Agile P54x current differential relays and MiCOM relays with InterMiCOM64 inter relay communications to be connected to remote pulse code modulation (PCM) multiplexing equipment.
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