100KV lightweight inflatable high-voltage AC/DC test transformer

Inflatable 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.

After years of effort, our company has successfully conducted research100KV lightweight inflatable high-voltage AC/DC test transformerCompared with traditional oil immersed lightweight test transformers, this series of inflatable test transformers reduces weight by 20% -60% (depending on voltage and capacity level), and has no oil pollution. The voltage level of a single inflatable test transformer can reach 300kV. Due to the use of a new production process, the technical performance of the product has been greatly improved, making it particularly suitable for on-site work and frequent moving working conditions.

Product Features:

1. Equipped with high voltage, low voltage current, zero position indication, power indication, working indication, and timing indication;
2. Equipped with overcurrent protection, zero start protection, sound and light language alarm reminder
3. Adopting a new type of time relay with a wider timing range (1S-99H)
4. Adopting a new type of current relay, it is more precise and reliable, ensuring personal and equipment safety.
5. Adopting a combination of hardware and software anti-interference technology, with stable performance and strong anti-interference ability
6. The high-voltage coil of the test transformer is a cylindrical multi-layer tower, made of high-quality polyester enameled wire and high voltage insulation material.
7. It has the characteristics of light weight, small size, easy mobility, and performance.
8. The test transformer (above 5kVA) is equipped with movable iron wheels.
9. This product has a small volume and light weight (20% -65% lighter than oil immersed test transformers of the same grade)
10100KV lightweight inflatable high-voltage AC/DC test transformerClean, oil-free, no maintenance required;
11. Not affected by harsh weather conditions, on-site handling does not require standing still for testing;
12. The insulation strength is significantly higher than that of oil immersed test transformers, and the corona is extremely small;
13. Can be used for AC withstand voltage testing of electrical primary equipment under specified voltage, to assess the insulation strength of the test sample and discover insulation defects of the test sample.

Technical parameters:

1. Console
Rated capacity: 1.5-100kVA
Rated output current: 7.5-232.5A
Rated output voltage: 0-430V
● Input power supply: three-phase AC 380V ± 10% (single-phase AC 220V ± 10%); 50Hz±5 Hz
● Input current: 7.5-250A
Timing length: 0~9999S (special mode can be used for long-term work)
Voltage accuracy: ≤ 1.0% ± 1 word (F.S)
Current accuracy: ≤ 1.0% ± 1 word (F.S)
Explanation: If there are special parameter requirements, design and production can be carried out according to the user's technical parameters.

2. SF6 gas filled test transformer
Rated capacity: 1.5-100kVA
Low voltage side voltage: 400V
Low voltage side current: 7.5-250A
High voltage side AC output voltage: 0-300kV
High voltage side AC output current: 0-3000mA
Measurement ratio: 1000:1
Impedance voltage: 4-9%
Output voltage waveform: sine wave
Variable ratio error: ＜ ± 1%
● Waveform distortion rate: ≯ 3%
● Allowable continuous full load working time: ≮ 1-2 hours (temperature rise of 50 ℃)
● No load loss: 0.2% to 0.4.0%
Voltage measurement accuracy: 1.0% FS ± 3 words
Current measurement accuracy: 1.0% FS ± 3 words
SF6 insulation gas content: 99.999% (national standard)
Gas pressure: 0.4Mpa
The parameters of the dual-purpose AC/DC test transformer are as shown in the table above. The rated DC voltage in the DC parameters is 1.4 times the AC current, and the rated DC current is 0.7 times the AC current.