Power Frequency Hipot Test Equipment AC High Voltage Withstand Voltage Test Set AC Dielectric Withstand Tester for Transformer Insulation Test

YDQ power frequency withstand voltage test device is a complete set of high‑voltage test equipment. The whole system consists of  Transformer Control Cabinet/Console (Control Part) and  Test Transformer (Boost Part). The control unit and boost unit can be freely combined. It is widely used in power systems, industrial and mining enterprises, and scientific research institutions. It is applied to conduct insulation strength withstand voltage tests for various high‑voltage electrical equipment, electrical components and insulating materials under power‑frequency or DC high‑voltage conditions. It is essential core test equipment for high‑voltage test sites.
As special supporting equipment for light‑duty test transformers, this device features easy maintenance, stable performance, reliable safety operation, compact and nice appearance, and convenient transportation. It is essential high‑voltage test equipment for power supply enterprises, large‑scale factories, metallurgical plants, power plants, railways and other power maintenance departments.

• Complete product specifications and strong compatibility; control unit and boost body can be freely matched
• Advanced design with reasonable and compact structure
• Multi‑function for AC & DC withstand voltage tests, lightweight and flexible
• Support single‑unit operation or multi‑unit cascade connection for higher test voltage
• Multiple control modes optional: Manual, Electric, Full‑automatic, Industrial PC control for different operation habits
• Optional printing, USB communication and upper‑computer interface for test‑data storage and export
• Multiple insulation media optional: Oil‑immersed, epoxy resin dry‑type, SF6 gas, corona‑free type, suitable for laboratory and field‑site working conditions

• Hand‑over test & preventive withstand voltage test for power supply bureaus and substations
• Insulation withstand‑voltage test for high‑voltage switchgears, transformers, mutual inductors, arresters, cables and other electrical equipment
• Factory type withstand‑voltage test for insulating materials and high‑voltage electrical components
• Maintenance tests for high‑voltage equipment in metallurgy, mining, railway, power plant and other industrial & mining enterprises
• High‑voltage insulation research in scientific research institutes and universities

1.What is the Power Frequency Withstand Voltage Test Set?

The power frequency withstand voltage test set is mainly used to conduct power frequency AC withstand voltage tests on power equipment and other high-voltage electrical equipment to verify the insulation performance of the equipment. The complete set of equipment mainly consists of a test transformer and a control section (operating box/operating console), and can be configured according to different test voltages, capacities, and usage requirements.

2.What equipment can this test set be used for?

This series of equipment is suitable for power frequency AC withstand voltage testing of transformers, instrument transformers, bushings, insulators, switchgear, cables and other high-voltage electrical equipment. It is applicable to power systems, electrical manufacturing enterprises, research institutions and testing laboratories, etc.

3.What types of test transformers are available?

Depending on the insulation structure and application scenario, we offer various types of test transformers, including ultra-lightweight test transformers, dry-type test transformers, oil-immersed test transformers, gas-type test transformers, insulated cylinder test transformers, and corona-free test transformers.

4.Can the control box and test transformer be supplied as a complete set?

Yes. The power frequency withstand voltage test device adopts a combination of control and voltage boosting components, and can be supplied as a complete set according to customer needs. The control unit can be selected from pointer-type control boxes, digital display control boxes, manual control consoles, electric control consoles, intelligent control consoles, and industrial control consoles, etc.

5.Is this equipment suitable for laboratory and field testing?

Yes. Depending on the model and configuration, it can be used in high-voltage laboratories, testing institutions, electrical manufacturing enterprises, and power field testing. For field use, the appropriate test transformer and operating console configuration can be selected based on transportation, installation, and operation requirements.