ABB SPAU 130 C THREE-PHASE VOLTAGE RELAY

Three-phase voltage relay SPAU 130 C

The three-phase voltage relay SPAU 130 C is intended to be used for over- and undervoltage protection and supervision in distribution substations. The relay can also be used for over- and undervoltage protection of generators, motors and transformers. Generally, the relay measures the three phase-to-phase voltages of the system, but it can also be programmed for single-phase measurement.



The overvoltage stage can be given definite time characteristic or inverse time characteristic. The undervoltage stage features definite time characteristic alone. An external control signal can be used to block the operation of the undervoltage stage. The relay forms a whole including over- and undervoltage stage as well as flexible trip and alarm functions.

Scope

Combined overvoltage and undervoltage protection
Product benefits

Protecting generator, motor and transformer assets
Product features

Combined overvoltage and undervoltage protection relay
Three-phase definite time or inverse time overvoltage stage
Three-phase definite time undervoltage stage
Control input for blocking the function of the undervoltage stage by means of an external control signal
Automatic blocking of the undervoltage
Serial interface for bus connection module and fiber-optic substation bus
Continuous self-supervision of relay hardware and software for enhanced system reliability and availability

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