Dedicated power supply designed for inspection and maintenance of high voltage circuit breakers and their operating mechanisms
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The high voltage switch operating voltage test (commonly known as "low voltage test") is a basic preventive electrical test to ensure the safe operation of the high voltage circuit breaker of the power system. At present, the power sector basically uses the following two methods to test:
1. Use the DC system of the field control cabinet as the test power supply, and test the voltage by the sliding line varistor. The biggest drawback of this method is that if the field test wiring is short-circuited or DC direct grounding, it will directly affect the entire DC system. If it is light, the high-voltage equipment on the site will be lost, and the DC system will collapse.
2. Using on-site AC power, using a voltage regulator for simple silicon rectification and direct output DC, the disadvantages of this method are:
①The regulator is heavy, inconvenient to use, and the output DC ripple is large.
②The input and output are not isolated, and the casing may be charged, endangering personal safety.
In view of the above situation, our company has developed a new generation of high-voltage switch closing power supply, providing test power supply for on-site high-voltage switch and opening and closing operation test, avoiding direct use of DC system in the field control box, effectively preventing possible on-site The hazards created by the DC system provide conditions for the safe operation of field devices.
Product nickname：High Voltage Switching Operating Power Supply ,High voltage detection switch operation,Switch operation
| Output power supply | AC220V±10% 50Hz |
| DC output | 25~250V continuously adjustable 15A |
| Instantaneous work | 20A |
| Ripple coefficient | <2% |
| Voltage stability | <2% |
| Environmental temperature | -20℃～50℃ |
| Environmental humidity | 75%RH |
| Dimensions | 280*210*150mm3 |
1. The appearance of the product is subject to the actual product. The Technical Parameters and model numbers are subject to change without notice. If there is misappropriation or copying, legal liability will be pursued.
2. For more information about Wuhan UHV, please enter product center . Service email：info@hvtest.cc
1. The high-voltage switch dynamic characteristic tester is a dedicated power supply designed for testing and repairing high-voltage circuit breakers and their operating mechanisms.
2, the input and output are completely isolated, and the output DC is stable and reliable.
3, the ripple factor is small
4, overcurrent and overvoltage protection
5, the wiring is simple, easy to operate
6, beautiful appearance, light weight, easy to carry
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
