Our Company is Chief Manufacturer, Exporter and Supplier of the Top Quality High Voltage Breakdown Tester. Our High Voltage Breakdown Tester Has Voltage Relay for Protection Against Over / Under Voltage At Output and Protection Relay for Single Phasing, Unbalanced Phase Etc. and Isolation Transformer Audible Indication At High and Low Cut Off. the High Voltage Breakdown Tester also Has Output Current Meter with or Without Ct. Moulded Case Circuit Breakers (above 75 Amps.) and Digital Voltmeter are Present in the High Voltage Breakdown Tester in Place of Analogue Voltmeter.