XC-3/220 AC/DC Hipot Test Set (Oil Immersed)

Product Introduction

This product XC-3/220 is especially suitable for electric power systems, mining companies, scientific research institutes, industrial enterprises, and testing laboratories, enabling power-frequency withstand voltage tests and insulation tests for electrical equipment, electrical components, and insulating materials when used together with high-voltage test transformers.

The YDJ series oil-immersed high voltage AC/DC accessories are manufactured in accordance with the national standard JB/T 9641-1999 and is designed for high-voltage insulation and withstand voltage testing, capacity up to 300kVA, high-voltage up to 300kV AC.

Product features

Control and Monitoring

· Monitoring functions: Output current, instrument voltage, zero-position indicator, on/off indicator, and timing indicator.

· Protection functions: Overcurrent protection, time relay.

· Employs a new type of time relay with a wider timing range.

· Employs a new type of current relay for greater accuracy and reliability, ensuring personal and equipment safety.

· Reasonable structure, small size, and light weight.

시간igh voltage AC/DC testing

· Reliable quality, good Stability.

· Large voltage margin, corona sound small, PD small.

· Use of new insulation materials

3. Technical Parameter 

4. Specifications 

1. Picture 

2. Accessories 

· High-Voltage Unit YDJ와 함께-3/50 

· Power Cord

· Test Line 

Compare the advantages and disadvantages of oil immersed test transformers and dry-type test transformers

1. The cost is different

For transformers of the same capacity, the purchase price of dry-type transformers is much higher than that of oil type transformers.  

2. Different lead forms

Dry type transformers mostly use silicone rubber bushings, while oil type transformers mostly use porcelain bushings

3. Different capacities and voltages

Dry type transformers are generally suitable for power distribution, with capacities mostly below 1600KVA and voltages below 10KV, with a few reaching a voltage level of 35KV; However, oil transformer supplier can achieve full capacity from small to large, and voltage levels can also achieve all voltages.   

4. Insulation and heat dissipation are different

Dry type transformers are generally insulated with resin and cooled by natural air cooling. Large capacity transformers are cooled by fans, while oil type transformer manufactures are insulated by insulating oil. The circulation of insulating oil inside the transformer transfers the heat generated by the coil to the radiator (plate) of the transformer for heat dissipation.   

5. Applicable places

Dry type transformers are mostly used in places that require "fire and explosion prevention", and are generally easy to use in large and high-rise buildings. Oil type transformer manufactures, on the other hand, are mostly used outdoors and in places where "accident oil pools" are excavated due to the possibility of oil spraying or leaking after "accidents", causing fires.

6. Different ability to withstand loads

Generally, dry-type transformers should operate at their rated capacity, while oil type transformers have better overload capacity.

Application Fields

Power companies (power plants, substations, transmission and distribution systems)

Electrical equipment manufacturing enterprises

Electric Installation and Engineering Company

Electric power maintenance and repair unit

Third party testing agency

Research institutes and university laboratories

New energy industries such as wind power, photovoltaics, and energy storage

Railway and urban rail transit

Large industrial enterprises such as petroleum, chemical, metallurgical, mining, etc

Power Equipment Maintenance and Testing Service Company

Frequently Asked Questions

1. What is an oil-immersed test transformer used for?

Oil immersed test transformers are mainly used to provide AC high voltage for power equipment such as transformers, cables, switchgear, insulators, circuit breakers, and transformers, and to conduct power frequency withstand voltage tests.

2. Is operation complicated?

No. When used with a control console or automatic control system, the operation is simple. Even first-time users can quickly master the testing procedure after basic training.

We have rich experience in the research and export of high-voltage testing equipment.As a direct-sale manufacturer with our own factory, we combine large-scale production capacity with a strict quality control system, ensuring stable and reliable product performance while offering you more competitive factory-direct prices.We offer:More than 20 years of export experience OEM & ODM services Strict quality inspection before shipment CE/ISO certified manufacturing Competitive pricing Fast delivery Professional after-sales support