What are the methods and tricks for selecting test transformers?

choiceTest TransformerWhat are the methods and tricks?

The test transformer is a testing equipment used for power equipment detection and preventive testing. With the development of China's power industry, the voltage level requirements for test transformers are becoming increasingly high, and traditional oil immersed test transformers are increasingly unable to meet the requirements of on-site work in terms of volume, weight, and performance.

With the progress of basic scientific research in China, the application of new materials and processes has pushed the new medium sulfur hexafluoride gas into the field of power equipment applications. Due to its excellent insulation and arc extinguishing properties, as well as non flammability, sulfur hexafluoride gas has been widely used as a new insulation medium.

Power systems, industrial and mining enterprises, transportation, postal and telecommunications departments, scientific research institutions, high and low voltage switchgear manufacturers, etc. usually need to choose test transformers. How to choose?

Test transformers are mainly used to conduct insulation strength tests on various high-voltage electrical equipment, electrical components, and insulation materials under power frequency or DC high voltage.
For example, it is usually more suitable to use a 5KVA/50KV test transformer when making 10KV switchgear withstand voltage;
It is usually more suitable to use 10KVA/100KV test transformers when making 35KV switchgear withstand voltage.
Clever Method:
Test TransformerIn addition to being able to perform AC power frequency withstand voltage tests, if equipped with capacitors of the same voltage level and capacity, silicon stacks, and high-voltage DC microamperes, it can be assembled into a DC high-voltage test device that can measure high-voltage DC leakage current.