The L90, a member of the UR family of protection relays, is a digital current differential relay system which provides protection for transmission lines. It may be applied on or adjacent to series compensated lines for three phase tripping. The L90 utilizes an innovative current differential scheme with adaptive restraint that allows the relay to operate correctly even when fault currents are distorted by harmonics or CT saturation. Models are available for application on transmission lines with 2 or 3 terminals.

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The L30, a member of the UR family of protection relays, is a digital current differential relay system which provides protection for sub-transmission and distribution lines. It may be applied on or adjacent to series compensated lines for three phase tripping. The L30 utilizes an innovative current differential scheme with adaptive restraint that allows the relay to operate correctly even when fault currents are distorted by harmonics or CT saturation. Models are available for application on transmission lines with 2 or 3 terminals.

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The L60 is an advanced phase comparison relay intended for application on overhead transmission lines, including series compensated lines, and high voltage underground cables of any voltage level. Both three pole and single pole tripping and reclosing schemes are available. As part of the Universal Relay (UR) Family, the L60 offers unparalleled digital protection and control.

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Reduce investments in lifetime costs, engineering, installation and commissioning with the D90Plus' integrated protection, control, automation and monitoring features in one easy to use package. The D90Plus is designed to cover a wide range of applications, from simple three-pole distance protection to high speed sub-cycle distance protection with single pole tripping and pilot communication schemes.

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Reduce investments in lifetime costs, engineering, installation and commissioning by using a product with integrated protection, control, automation and monitoring feature in one easy to use package. A product globally accepted (available in multiple languages) with years of field experience in MV to EHV applications.

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Reduce investments in lifetime costs, engineering, installation and commissioning by using a product with integrated protection, control, automation and monitoring feature in one easy to use package. A product globally accepted (available in multiple languages) with years of field experience as primary distance protection for sub transmission lines and for backup protection of transmission lines, generators and transformers.

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C70 is an integrated protection, control and monitoring device for capacitor banks based on the well-established and proven UR relay platform of GE Multilin. C70 provides both the bank and system protection schemes for shunt capacitor protection. The current and voltage-based protection functions are designed to provide sensitive protection for grounded, ungrounded single and parallel capacitor banks and banks with taps, for a variety of capacitor bank configurations. Combined with the sophisticated built-in control functions turn ON/OFF banks with relative ease and flexibility for automatic voltage regulation.

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The T60, a member of the UR family of protection relays, is a 3-phase, multiple winding, transformer relay intended for the primary protection and management of small, medium and large power transformers.
The T60 combines percent and instantaneous differential with Overcurrent protection along with a whole suite of current, voltage and frequency protection elements, and multiple settings groups in one easily configured, economical package.

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The T35, a member of the UR family of protection relays, is a 3-phase transformer relay, intended for primary protection of power transformers, with up to six windings/restraints.
The T35 Transformer Management Relay is a perfect protection for multi-winding power transformers, where the windings are connected to more than one breaker such as in a breaker-and-a-half schemes, or to more than two breakers. Percent and instantaneous differential protections combined with phase time overcurrent elements and sixteen fully configurable universal comparators (FlexElements™), make a perfect protection package for primary and backup transformer protections.

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The B90 protection system is a centralized architecture built on three or more UR IEDs based on application requirements. Each component of the B90 system is a full-featured UR which can be accessed and programmed individually. The main protection functions of the B90 are provided on a per-phase basis. The AC signals of a given phase, both currents and voltages, are connected and processed by a single IED. These IEDs provide for all the protection and monitoring functions that require the AC information. The IEDs support multiple I/Os (up to a maximum of 48 inputs or 18 outputs per IED)

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The B30 is a digital relay that provides low-impedance bus protection, control, and metering in one integrated package. It may be used as a standalone device or as a component of an automated substation control system.

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The G60 Generator Management Relay, part of the UR family of protective relays, is a microprocessor-based relay intended for the protection of AC generators. It may be used on any size of generator driven by steam, gas and hydraulic turbine.

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The G30 Generator Management Relay, part of the UR family of protective relays, is a microprocessor-based relay intended for the protection of small generators and for applications needing combined generator and transformer protection. Protection functions include restricted ground fault (zero sequence differential), split phase protection, differential protection (In-Zone Transformer protection), loss of excitation, sensitive directional ground, current unbalance, overcurrent protection, overexcitation protection, abnormal voltage frequency protection, synchronism check, and a whole suite of under- and overvoltage, and overcurrent functions.

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The N60 Network Stability and Synchrophasor System is a flexible device intended for the development of load shedding, Remedial Action, special protection schemes and wide area monitoring (synchrophasors). Special protection schemes are unique to each installation and are carefully matched to a given system topology, operating practices, system and protection philosophies of a given utility.

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The F60, a member of the UR family of protection relays, is a digital relay that provides feeder protection and power metering in one integrated package. It may be used as a stand alone device or as a component an automated substation control system.

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The F35, a member of the UR family of protection relays, is a digital relay that provides feeder protection and power metering for up to 5 feeders with busbar voltage measurement or 6 feeders without busbar voltage in one integrated package. It may be used as a stand alone device or as a component of an automated substation control system.

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The C60, a member of the UR family of protection and control systems, is a digital relay that provides complete breaker monitoring and control including breaker failure protection, synchrocheck, autoreclosure and power metering in one integrated package. It may be used as a standalone device or as component of an automated substation control system.

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