Rectifiers & Electronics manufactures Low Capacity 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 Low Capacity AC High Voltage Test Sets are used to test industrial and electrical appliances. It offers installations as per IS. It is manufactured in house. This set is air-cooled, oil-cooled or air & oil cooled combined as per requirement.