Products

Transmission

Transmission

  • GE L30 | Line Differential System

    The L30 is a cost-effective line current differential protection relay intended for sub-transmission and medium voltage lines and cables providing reliable and secure operation even under the worst case power system conditions. The L30 provides secure high-speed fault detection and clearance suitable for three-pole tripping applications. The L30 supports inter-relay communications via direct fiber as well as standard RS422, G.703 and C37.94 telecommunication interfaces. The L30 also provides synchrophasor measurements over Ethernet per IEEE C37.118.

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  • GE L90 | Complete Line Protection

    The L90 provides high-speed current differential protection suitable for transmission lines and cables of various voltage levels, while supporting complete distance protection and dual-breaker applications suitable for single and three-pole tripping applications. The L90 uses synchronized sampling at each relay to limit the impact of communications channel issues. The differential element's adaptive restraint balances sensitivity for internal faults and security during external faults. The L90 supports inter-relay protection communications via direct fiber as well as different interfaces.

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  • GE L60 | Line Phase Comparison System

    The L60 provides fast and secure sub-cycle phase comparison protection, for both two-terminal and three- terminal lines, lines with series compensation and for single-pole and three-pole tripping applications. The L60 can operate using existing power line carrier or fiber optic communications, and compensates for channel asymmetry and charging currents. The L60 can provide complete support of dual-breaker line terminals by using multiple current inputs.

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  • D90Plus | Line Distance Protection System

    The D90Plus is a sub-cycle line distance protection system and bay controller suitable for protecting transmission lines and cables including lines equipped with series compensation. The D90Plus supports dual-breaker applications and can be used for single or three-pole tripping. The D90Plus supports different teleprotection schemes, including DCB, DCU, POTT, Hybrid POTT, and PUTT. The D90Plus also provides synchrophasor measurement over Ethernet per IEEE C37.118.

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  • 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.

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  • GE D30 | Line Distance Protection System

    Cost-effective, high-speed, primary and backup distance protection 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.

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  • GE C90Plus | Automation Control System

    The Multilin C90Plus Automation Control System with fast load shed is a powerful system that eliminates the need for several separate devices. The C90Plus is highly customizable and scalable, performing intelligent, high-end and fast optimal load shedding. C90Plus can also be used in applications for advanced bay control and monitoring, frequency and voltage load shed, substation alarm concentrator, annunciator and controller, and advanced automation schemes such as bus transfer and stand alone breaker protection and monitoring.

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