T & R 200A 3PH MK3 Secondary Current Injection Test Set

The 200A 3PH Mk3 Secondary Current Injection Test Set is a portable compact and versatile system for commissioning and maintenance engineers It provides a flexible and easy to use solution for testing and timing protective relays circuit breakers and thermal overloads The unit has a rating suitable for testing thermal trips and is equally adept at testing solid state or electromechanical relays

The timing system is flexible and accurate allowing high precision measurement of trip times The device may be timed using the NC or NO timer modes for units with auxiliary contacts Meanwhile devices with no auxiliary contacts may be timed using the current operated mode The 200A 3PH Mk3 is ideal for testing over and undercurrent relays IDMT relays thermal overloads and magnetic circuit breakers

The unit has three independent outputs each for a phase The output is isolated and independently variable and it allows for the injection of currents up to 200A The digital true RMS system with a 3 5 digit LED display meters the output Illuminated push buttons switch the output on and off while the current is set using three control knobs on the front panel All ranges are continuously variable from zero and a switched isolated auxiliary 240V 50mA AC supply is available to power auxiliary control circuits

The 200A 3PH Mk3 Test Set is protected by electronic overcurrent trips on the outputs fuses on the contact input mains input and regulators The unit is UKCA marked and designed to comply with BSEN61010 An earth terminal is provided for connection to a local earth Subsequently auxiliary AC output is fuse protected