Adjustable resonance device for field calibration of capacitive voltage transformers up to 500kV
Capacitive voltage transformer (CVT) in calibration, the test must be conducted under the condition of 50 hz frequency, complex geographical condition on site at the same time, the traditional experiment device is difficult to meet the requirements of on-site handling, testing, series resonance booster device is first used in domestic field tunable resonance device, has been widely used in domestic 500 kv and below the field calibration of capacitor voltage transformer.
product names：Resonant booster for CVT inspection, frequency conversion booster, frequency conversion Series booster, Series resonance transformer, Series resonance transformer, transformer calibration Series resonance booster, Series resonance test equipment, Series resonance booster
|Adjustable inductance range||65~130H|
|Adjustable clearance range||0~300mm|
1.The appearance of the product shall be subject to the actual product，Technical parameters with model if there are any changes，without notice。In case of misappropriation or copying, legal liability will be investigated.
1、Due to full compensation of resonant reactive power, the power of power supply and equipment is less than 1/10 of the required capacity of the subject (1/Q>10). Small size and light weight with the same capacity, large output capacity of the device and small power capacity required, cheap, convenient and safe to use;
2、Series resonance is actually a current filtering circuit, so that the current passing through the subject is basically the fundamental current, and the waveform distortion rate (THD) of the output voltage is very small, which is superior to all existing ac voltage withstand equipment.
3、The short circuit current of the sample after flashover or breakdown is only less than 1/10 (1/Q) of the test current before short circuit, which can effectively prevent the expansion of damage to the fault point after breakdown;
4、After flashover, the arc will be automatically extinguished immediately. The long (number of seconds) process of restoring resonant state voltage after arc quenching is a steady-state establishment process, and there is no danger of voltage overshoot and no danger of restoring overvoltage in microsecond millisecond transient process.
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/T28001-2011 occupational health and safety management system requirements.