By hvhipot 
HV Hipot Electric Co., Ltd. specializes in producing series resonance (also known as series resonance test device). Next, we will share with you what is the series resonance test device?
Series resonance is mainly designed and manufactured for AC withstand voltage testing of primary electrical equipment in substations of 220kV and below. Can meet the AC withstand voltage test requirements for capacitive equipment such as transformers, GIS systems, SF6 switches, cables, and bushings according to regulations. It can meet the requirements of equipment testing conditions for high voltage and low current, as well as low voltage and high current, and has a wide range of applications. It is an ideal withstand voltage equipment for high voltage testing departments and power installation and maintenance engineering units at the prefecture, city, and county levels.
Series resonance is mainly composed of variable frequency control power supply, excitation transformer, reactor, and capacitive voltage divider. The variable frequency control power supply adopts an imported specialized SPWM digital waveform generation chip with a frequency resolution of 16 bits. The frequency fineness can reach 0.1Hz between 20-300Hz. At the same time, it adopts orthogonal asynchronous fixed carrier modulation to ensure good output waveform throughout the entire frequency range; The power section adopts advanced IPM modules to ensure the stability and safety of the instrument.
Main features:
Compared with similar domestic products, this series of devices has multiple key advantages:
1. Reactors of the same voltage level and capacity have smaller volume and lighter weight; Low temperature rise at rated load; Adopting dry epoxy casting, it has high mechanical strength, good electrical insulation performance, and is aesthetically pleasing and reliable.
2. The variable frequency control series resonance has a large capacity margin; Strong protection function; Good output waveform; Good stability; Having multiple working modes and easy operation; Adopting 220V or 380V single-phase power supply for convenient on-site power supply.
3. The device is fully configured. Different types of reactors can also be selected to meet the testing requirements of different users, achieving multi use and high cost-effectiveness. Different specifications can be customized according to customer requirements, making it the best choice for users!