DC hipot test set

Data records

• DC hipot test sets are used for hipot testing of switchgear, cables, motors, generators and protective equipment, and the highest-voltage field units are built as stackable modules on a mobile base so that the set can be transported. Source: Phenix Technologies product page, web page edition. Verified 2026-10-27. Record instr.dc-hipot-test-set.applications
• A capacitive test object such as a cable must first be charged to the test voltage, and the output current of the set determines how quickly a large capacitance reaches that voltage. Source: Phenix Technologies product page, web page edition. Verified 2026-10-27. Record instr.dc-hipot-test-set.charging-current
• DC hipot test sets are often chosen over AC sets because they are smaller, lighter and less expensive, but a DC leakage current reading tells little about the integrity of the equipment under normal AC operating conditions. Source: High Voltage, Inc. application page, web page edition. Verified 2026-10-27. Record instr.dc-hipot-test-set.dc-versus-ac
• After a test the charge stored in the capacitive test object is removed through an internal discharge switch, and ground-and-discharge sticks are used to ground the specimen before anyone touches it. Source: Phenix Technologies product page, web page edition. Verified 2026-10-27. Record instr.dc-hipot-test-set.discharge
• A guard circuit keeps stray leakage current out of the specimen current measurement, so that the reading reflects the insulation under test rather than leakage over surfaces or through the leads. Source: Phenix Technologies product page, web page edition. Verified 2026-10-27. Record instr.dc-hipot-test-set.guard-mode
• In a step voltage test the direct voltage is raised in equal steps with the leakage current recorded at the end of each hold; a leakage current that rises faster than the voltage at the upper steps points to insulation weakness, whereas sound insulation shows a nearly proportional rise. Source: Electrical Testing Reference editorial taxonomy, 2026-10 edition. Verified 2026-10-27. Record instr.dc-hipot-test-set.step-voltage-test
• The instrument class is written DC hipot test set. Value: DC hipot test set. Source: Electrical Testing Reference editorial taxonomy, 2026-10 edition. Verified 2026-10-27. Record instr.dc-hipot-test-set.title
• A DC hipot test set applies a direct voltage above the service voltage to the insulation of a test object and reads the leakage current drawn by the insulation while the voltage is held, so that a withstand result and a leakage current are obtained from one test. Source: High Voltage, Inc. product page, web page edition. Verified 2026-10-27. Record instr.dc-hipot-test-set.withstand-and-leakage
• A zero-start interlock blocks energizing unless the voltage control is at its minimum, and an overload circuit with an adjustable overcurrent trip point de-energizes the output when the specimen current rises above the set level. Source: Phenix Technologies product page, web page edition. Verified 2026-10-27. Record instr.dc-hipot-test-set.zero-start-and-trip