No partial discharge test transformer

Non partial discharge test transformer is an important electrical equipment used to test and evaluate the insulation performance of high-voltage equipment. It plays a crucial role in the power industry, ensuring the safe and efficient operation of the power system.

In traditional transformer testing, partial discharge testing is often used to evaluate the reliability and insulation performance of the equipment. However, this testing method has certain limitations, such as the generation of noise and electromagnetic interference during the testing process, which have a certain impact on equipment and the environment.

The experimental transformer solved these problems by introducing novel technologies. It adopts special insulation materials and designs to reduce or eliminate partial discharge phenomena during the testing process. This sophisticated equipment utilizes unconventional electric field control and insulation structures, making the testing process more stable and reliable.

Experimental transformers have many advantages. Firstly, it can provide accurate test results to evaluate the insulation quality and performance of the equipment to ensure compliance with standard requirements. Secondly, as the non partial discharge test does not generate noise and electromagnetic interference, it can be conducted in a wider range of environmental conditions, including laboratories and engineering sites. This provides greater flexibility for maintaining equipment and monitoring systems.

In addition, the test transformer also has the characteristic of high efficiency. Traditional testing methods may require longer time to complete the testing process, while partial discharge testing can greatly shorten the testing time. This reduces the time occupied by the equipment and improves work efficiency.

In addition to its application in the power industry, test transformers are gradually being widely used in other fields such as rail transit, aerospace, and new energy. These fields have increasingly high requirements for the reliability and safety of high-voltage equipment, and test transformers precisely meet these needs.

Technical parameters of transformer without partial discharge test:

1. Partial discharge capacity (insulated cylinder type)

A. 10-200KV rated voltage (UH), local discharge capacity ≤ 3-5Pc at 100% UH

B. 250-300KV rated voltage (UH), local discharge capacity ≤ 5Pc at 100% UH

C. 350-750KV rated voltage (UH), local discharge capacity ≤ 5Pc at 80% UH, ≤ 10Pc at 100% UH

D. 800KV~1500KV rated voltage (UH), local discharge capacity ≤ 10Pc at 80% UH

2. Cascade test transformer, uneven voltage distribution between two or three sections ≤ 5%

3. Allowable operating time: The test transformer can run for 30 minutes from ambient temperature at rated voltage and current, and can run continuously at two-thirds of the rated voltage and current

4. The impedance of a single test transformer is 3% to 12%, and the impedance of a series connection is 5% to 25%

5. Waveform distortion rate<3%

6. The remaining parameters comply with the provisions of JB/T9641-1999<<Test Transformer>>

Selection parameters: