The high Voltage also known as di-electric withstand tester comes with customized facilities like voltage rampup rate zero interlock, Plus the user may specify the voltage level and leakage milliampere level so as to suit its testing needs.
Oil cooled Auto Transformer with Motorized variac: The 3 phase, 415 V, 50 Hz, oil cooled variac is designed so as to draw the required current from the mains at various primary voltage levels. DC Stepper motor based Servo Controlled Voltage mechanism ensures good voltage regulation (line regulation) even at a fluctuating line voltage typically encountered at large industrial sites.
Control Panel: This is a user friendly control panel for user input, programming of the micro controller based timer as well as for displaying test results. The control panel is maintained at a safe distance from the variac unit as well as the HV Transformer for user safety.
High Voltage Transformer: The most critical component of the system is housed in a third fabricated unit which generates a high voltage of 415 / 50 kV is rated for 2000 mA leakage current. It is Oil cooled making it ideal for a long duration duty cycle. It is in built with a current limiting resistance for burnout test.
High Voltage Tester 0 – 30kV/5A leakage current – 2.50Amps Burnout facility
Input – 440 VAC, Two Phase, 50 Hz.
Modes – Auto + Manual
Normal HVT and Burn out test selection.
Digital Voltmeter – 31/2 Digit having range 0 to 35kV
Digital Current Meter – 31/2 digit having range 0 to 5Amp
Time Setting : 0 to 60 sec
Safety Factors – Zero Interlock
Tripping Threshold – 0.5A, 1A, 2.5A, 5A
Indicator Lamps – HT ON, RESET, FAULT, SUPPLY, BURN OUT TEST
Selection of Leakage current in steps of 0.5A, 1A, 2.5A, 5A.
HV Transformer & Variac will be oil cooled type.
HV Tester will built in three parts : a) HV Transformer (Oil Cooled) b) Control Panel Variac (Oil Cooled)
The test bench tests the di-electric withstand capability of the product with settable high voltage and allowable leakage current. The voltage set can be ramped up slowly with a settable ramp up time so that the user can exactly find the voltage level at which the insulation breakdown takes place. The 5000 mA tester is typically used to test capacitive insulation present in a high horsepower motor
