Page 1 INSTRUCTION MANUAL AUTOMATIC AC DIELECTRIC BREAKDOWN TESTER MODEL : 35kV AC, 10mA CONTENTS. GENERAL INTRODUCTION TECHNICAL SPECIFICATION. OPERATING CONTROLS AND INDICATION. OPERATING PROCEDURE DRAWINGS - 1 -...
Page 2 GENERAL Some twenty years ago we committed ourselves to fill up the void in indigenous production – oriented test equipments for our fast growing electronics and electrical industry, which was then dependent on costly imported equipments. Even the simplest of the equipments were being imported with the omnipresent menace of servicing problem.
Page 3 INTRODUCTION The instruments, fully Automatic AC Dielectric Breakdown Tester is specially designed in accordance with ASTM-D149 & IEC-243. This is cost effective and reliable for testing Insulation Breakdown of Solid material. Auto/Manual operating modes are also available. This instrument can be used to test the solid insulation material such as paper, films, plastic, laminates ,Boards, glass, Mica, Ceramic, tapes, capacitors, wires &...
Page 4 TECHNICAL SPECIFICATION 3.1 Supply voltage 230VAC±10%,50Hz, Single phase. 3.2 Output Voltage Range : 19.99kV-35kV Resolution: 0.01KV, 0.1KV Accuracy: ±2%, ±2 digit. Indication: 3 ½ digit Digital Panel Meter. 3.3 Leakage Current Range: 19.99mA(10 mA approx.) Resolution: 0.01mA Accuracy: ±2%, ±2 digit. Indication: 3 ½...
Page 5 OPERATING CONTROLS 4.1 Mains ON/OFF Self illumination type Mains ON/OFF switch. 4.2 Set Volts Microswitch & Potentiometer provided to set the Voltage to be applied to the Test specimen. 4.3 Set Current Microswitch & Potentiometer provided to set the maximum Leakage Current of the Test specimen. 4.4 Reset Microswitch provided to Reset the DPM(Volts) after hold.
Page 6 OPERATING PROCEDURE: Connect the Mains Cord of the Instrument to 230VAC, 50HZ supply. Switch on the Instrument with the help of Mains ON/OFF. Instrument will be in HT OFF mode. Open the Acrylic Door, cut the sample piece/sheet of size 30cm X 30cm to avoid arching in air.
Page 7 If the test sheet gets Breakdown while reaching the Set Voltage i.e. whenever the Leakage Current exceeds the Set Current at the same time , HV will get OFF & the Reading will be latched on the DPM(volts) it means that the sheet Breakdown takes place.