AN ELECTRONIC TESTING DEVICE TO STIMULATE THREE PHASE AC REAL TIME FIELD WAVEFORM AND TO VERIFY RESPONSE OF CIRCUIT BREAKER

摘要

New generation test kit simulates real time AC field signal and determines the operability of the circuit breakers. It simulates test conditions for standard protection functions like Thermal Overload, Short circuit, Instantaneous, Current unbalance, Voltage unbalance, Under Voltage, Over Voltage, Earth fault etc. Additionally it simulates waveforms with harmonic contents to check breaker performance over total harmonic distortion. It provides three phase AC voltage and three phase AC current signals for testing. All test parameters (like voltage and current Amplitude, Frequency, Phase Shift, Ramp-up time & Amplitude etc) are programmable. User can configure these test parameters manually by entering values through keyboard or remotely through PC based application. It supports in-built test scripts to save the time required to enter test parameters manually and thus accelerates system testing. NGTK also calibrates electronic releases of breakers as it simulates output of the sensor like Rogowski and CT. It provides 24V power supply to power up electronic release to be tested