INGVAR primary current injection test system

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, such as a powerful measurement section that can display turns ratio as well as time, voltage, and current. A second measurement channel can also be used to test an additional current or voltage. The INGVAR can calculate the current transformer turns ratio, impedance, power, power factor/tan delta (cos φ), and phase angle and the results are shown on the display. The current and voltage can be presented as percentages of nominal value. It also has a fast-acting hold function that freezes short-duration readings on the digital display, so when the voltage or contact signal arrives at the 'stop' input, the object under test interrupts the current, or the injection is stopped.