Rectifiers & Electronics supplies Breakdown Type AC High Voltage Test Sets. . Rectifiers & Electronics is an ISO 9001:2000 certified company. Rectifiers & Electronics manufacture testing equipment such as AC/DC High Voltage Test Sets and Other Electrical High Voltage Test Equipment. The Breakdown Type AC High Voltage Test Sets are applied to test testing electrical appliances following I.S. Specifications. These are oil cooled or air cooled or air and oil cooled combined as per requirements. These tests set feature compact size and can be easily operated. It provides built-in safety arrangement for operator. Special Insulating Paper is used in these Breakdown Type AC High Voltage Test Sets for transformer winding.