Product Introduction
Inflatable test transformer is a high-voltage testing equipment that uses SF ₆ gas as the insulation medium, mainly used for AC withstand voltage testing. Compared to oil immersed test transformers, it has the advantages of excellent insulation performance, small size, light weight, and no need to maintain oil media. It is widely used in power, cable, and other fields GIS、 Industries such as transformer, motor, and high-voltage electrical equipment manufacturing.
Parameter teknik
| voltage classes | 10kV～300kV |
| range of capacity | 1～500kVA |
| no-load current | ＜7% |
| impedance voltage | ＜8% |
| product classification | interflow、ac/dc、Ac cascade、Ac-dc cascade |
Main product specifications
| specifications and models | capacity(kVA) | High Voltage(kV) | High tension current(mA) | low input voltage converter | bend-beam-rheometer | temperature rise℃(30 minutes) | |
| voltage(V) | electricity(A) | ||||||
| YDQ-1.5/50 | 1.5 | 50 | 30 | 200 | 7.5 | 500 | 10 |
| YDQ-3/50 | 3 | 50 | 60 | 200 | 15 | 500 | 10 |
| YDQ-5/50 | 5 | 50 | 100 | 200 | 25 | 500 | 10 |
| YDQ-10/50 | 10 | 50 | 200 | 200 | 50 | 500 | 10 |
| YDQ-20/50 | 20 | 50 | 400 | 400 | 53 | 500 | 10 |
| YDQ-30/50 | 30 | 50 | 600 | 400 | 79 | 500 | 10 |
| YDQ-50/50 | 50 | 50 | 1000 | 400 | 12 | 500 | 10 |
| YDQ-5/100 | 5 | 100 | 50 | 200 | 25 | 1000 | 10 |
| YDQ-10/100 | 10 | 100 | 100 | 200 | 50 | 1000 | 10 |
| YDQ-20/100 | 20 | 100 | 200 | 400 | 53 | 1000 | 10 |
| YDQ-30/100 | 30 | 100 | 300 | 400 | 79 | 1000 | 10 |
| YDQ-50/100 | 50 | 100 | 500 | 400 | 132 | 1000 | 10 |
| YDQ-20/150 | 20 | 150 | 133 | 400 | 53 | 1500 | 10 |
| YDQ-30/150 | 30 | 150 | 200 | 400 | 80 | 1500 | 10 |
| YDQ-50/150 | 50 | 150 | 333 | 400 | 132 | 1500 | 10 |
| YDQ-100/150 | 100 | 150 | 667 | 400 | 263 | 1500 | 10 |
| YDQ-50/200 | 50 | 200 | 250 | 400 | 132 | 2000 | 10 |
| YDQ-100/200 | 100 | 200 | 500 | 400 | 263 | 2000 | 10 |
| YDQ-150/200 | 150 | 200 | 750 | 400 | 395 | 2000 | 10 |
| YDQ-200/200 | 200 | 200 | 1000 | 400 | 526 | 2000 | 10 |
| YDQ-300/200 | 300 | 200 | 1500 | 400 | 790 | 2000 | 10 |
| YDQ-50/300 | 50 | 300 | 170 | 400 | 132 | 3000 | 10 |
| YDQ-100/300 | 100 | 300 | 333 | 400 | 263 | 3000 | 10 |
| YDQ-150/300 | 150 | 300 | 500 | 400 | 395 | 3000 | 10 |
| YDQ-200/300 | 200 | 300 | 667 | 400 | 526 | 3000 | 10 |
| YDQ-300/300 | 300 | 300 | 1000 | 400 | 790 | 3000 | 10 |
Product Feature:
1. Small size, light weight.
2. Clean, no oil, maintenance-free.
3. Free from harsh climate impacts, site handling still can do the test.
4. Dielectric strength significantly higher than oil type, corona minimal.
The difference between inflatable and oil immersed test transformers
Project | Inflatable | Oil-immersed |
Insulation medium | SF₆gas | Insulating oil |
Berat | lighter | Heavy |
Maintain | Basic maintenance free | Need to check the oil quality |
Environmental friendliness | No oil leakage pollution | There is a risk of oil leakage |
Moisture resistance | Excellent | General |
Usage environment | Both indoors and outdoors | More suitable for fixed locations |
Cost | Slightly higher | Relative economy |
Practical application cases
Case 1: Factory Test of High Voltage Switchgear Manufacturer
A certain high-voltage switch manufacturing enterprise has chosen Wuhan UHV inflatable test transformers to improve the efficiency of factory inspection. The company needs to test various specifications of switchgear, with voltage requirements ranging from 100kV to 300kV. Based on this situation, they chose a configuration scheme that combines a basic unit with two booster units.
In practical use, this system successfully completed a six-month intensive testing task. The stable performance of the equipment at different voltage levels ensures the reliability of the test data. Enterprise technicians pointed out that the rapid assembly function of the equipment has helped them cope with the production testing needs of multiple batches and small batches.
Case 2: Equipment Performance Testing of Electric Power Research Institute
A certain power science research institute needs a testing system that can provide accurate voltage output when conducting tests on new insulation materials. Considering the requirements for testing accuracy and laboratory space limitations, they chose the compact inflatable test transformer of Wuhan UHV.
The project leader of the institute stated that during the selection process, they focused on the voltage regulation accuracy and long-term stability of the equipment. After comparative testing, the selected equipment maintained the output voltage fluctuation within the allowable range during continuous operation, meeting the requirements of scientific research testing.
It is worth mentioning that in the subsequent expansion of the project, the researchers added an intelligent monitoring module, which achieved automatic recording and analysis of test data, further enhancing the performance of the equipment.
