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INGVAR-PRIMARY CURRENT INJECTION TEST SET
This powerful test system is designed for primary injection testing



of protective relay equipment and circuit breakers. It is also used



to test the turns ratio of current transformers and for other



applications that require high variable currents.



The system consists of a control unit and a current unit. The two



parts are portable, and INGVAR can be quickly assembled and



connected.



The control unit has many advanced features – a powerful



measurement section for example, that can display turns ratio as



well as time, voltage and current. A second measurement channel



can be used to test an additional current or voltage. Current



transformer turns ratio, impedance, power, power factor (cos φ)



and phase angle are calculated and shown in the display. Current



and voltage can be presented as percentages of nominal value. The



fast-acting hold function freezes short-duration readings on the



digital display when the voltage or contact signal arrives at the stop



input, the object under test interrupts the current or injection is



stopped.

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