Necessary test equipment for power equipment inspection and preventive test
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Inflatable test transformer is a necessary test equipment for power equipment test and preventive test.With the development of China's power industry，The requirement of voltage grade of test transformer is higher and higher，And the traditional oil-immersed test transformer，No matter in the volume and weight or in the performance are increasingly unable to meet the requirements of field work.
With the progress of basic science research in China，advanced material，Application of new process，The new medium sulfur hexafluoride gas is introduced into the application field of power equipment.Because of the excellent insulation and arc extinguishing performance of sulfur hexafluoride gas，And incombustibility，It is widely used as a new insulating medium.
Our company has been working hard for many years，Inflatable ac test transformer is studied successfully，This series of inflatable test transformer is compared with traditional oil-immersed lightweight test transformer，You lose weight20%－60%(It depends on voltage and capacity level)，And no oil pollution，The voltage grade of single inflatable test transformer can be reached300kV.Due to the inflatable test transformer with a new production process，The technical performance of the product has been greatly improved，Especially suitable for field work and frequently moving working conditions.
Product nickname: Ac-dc SF6 gas test transformer、Power voltage test transformer、Inflatable high-voltage test transformer、Inflatable test transformer
| 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 |
| 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 |
1.The appearance of the product shall be subject to the actual product，If there are any changes in technical parameters and models，without prior notice.If there is theft or copying，Legal responsibility will be pursued.
2.For more information aboutWuhan UHV, please enter product center . Service email：info@hvtest.cc
1、The inflatable test transformer is small in size,in light weight(It is 40%-65 lighter than the same grade oil-immersed transformer)
2、spotless,greaseless,There is no need to maintain
3、Free from adverse weather and environment,The field transport should be stationary and can be tested
4、The insulation strength is obviously higher than that of oil-immersed transformer,Minimal corona
1、AC and DC High-Voltage Output: It generates high-voltage AC output for power frequency withstand tests. With the addition of a high-voltage silicon stack, it can provide DC high voltage for DC withstand and leakage current tests.
2、Wide Range of Models: The YDQ series offers a broad selection of models with capacities ranging from 1.5kVA to 300kVA and output voltages from 10kV up to 300kV. Multiple product classifications are available, including AC, AC/DC, AC cascade, and AC-DC cascade types.
3、SF6 Gas Insulation: The unit uses sulfur hexafluoride (SF6) gas as its primary insulating medium. This gas provides superior insulation strength and arc-quenching properties, making it highly effective and safe.
4、Robust and Reliable Design: The series features excellent material selection and a robust structure, ensuring reliable quality and good stability. The design minimizes corona discharge.
1、Extremely Lightweight and Compact: The SF6 gas insulation allows for a much more compact design. It is 40-65% lighter than oil-immersed transformers of the same voltage and capacity rating. This is a major advantage for field testing where portability is critical.
2、Maintenance-Free Operation: As a gas-insulated unit, it is "spotless and greaseless," requiring no routine oil maintenance, which saves time and eliminates the risk of oil leaks.
3、Superior Insulation Performance: The insulation strength is significantly higher than that of oil-immersed transformers, with minimal corona discharge. This allows for higher voltage ratings and more reliable test results.
4、Excellent Environmental Adaptability: The sealed SF6 gas system makes the transformer free from adverse weather and environmental conditions. It is designed for stable operation during field transport and can be tested without stationary installation, making it robust for demanding field work.
5、High Voltage Capability: The single-unit design can reach voltage levels up to 300kV, and the cascade design can achieve even higher voltages.
1、On-Site Field Testing in Power Systems: Ideal for high-voltage withstand testing of power equipment (transformers, GIS, circuit breakers, cables) in substations, power plants, and remote locations, especially where transporting heavy oil-filled transformers is difficult.
2、Preventive Maintenance: Used for routine preventive testing of electrical apparatus to ensure insulation integrity and system reliability.
3、Frequently Moving Work Conditions: Perfect for testing teams and service companies that need to move equipment frequently between different sites, as the lightweight design significantly reduces logistical burdens.
4、Indoor and Outdoor Laboratories: Suitable for both indoor high-voltage labs and outdoor test facilities where a clean, oil-free environment is desired.
Enterprise products in strict accordance with international and national standards and rules of industry production, through the national, provincial and municipal electric power research institute and electric power authorities detection, measuring center, fully passed the ISO9001 international quality management system certification, the licence for manufacturing measuring instruments of the People's Republic of China, GB/T19001-2016 quality management system requirements, GB/T24001-2016 environmental management system requirements, GB/T45001-2020 occupational health and safety management system requirements.
email： info@hvtest.cc
Skype： Tina Qiao
+8615172408058
