NADXZ substation electrical equipment AC voltage withstand resonance testing device

NADXZ substation electrical equipment AC voltage withstand resonance testing device

Also called name

Substation series resonant withstand voltage test, AC variable frequency series resonant withstand voltage test, series resonant withstand voltage test device, variable frequency resonant withstand voltage test device, series resonant AC withstand voltage test reactor, advantages of variable frequency series resonant withstand voltage test, series resonance resistance Pressure test wiring principle, AC voltage withstand resonance device, frequency conversion resonance, variable frequency series resonance, withstand voltage resonance device, series resonance, series resonance transformer, series resonance test equipment

Functional application

NADXZ series substation electrical equipment AC voltage withstand resonance device, mainly designed and manufactured for AC voltage withstand test of primary equipment of 110kV and below substation. It can meet the AC withstand voltage test of capacitive equipment such as transformer, GIS system, SF6 switch, cable and casing according to the regulations. The substation variable frequency series resonance test device can meet the requirements of high voltage and low current equipment test conditions, and can meet the requirements of low voltage and high current equipment test conditions. It has a wide range of application and is a high-voltage test at the prefecture, city and county level. The ideal pressure-resistant equipment for the department and power installation and repair engineering units.

The substation frequency conversion series resonance test device is mainly composed of a frequency conversion control power source, an excitation transformer, a reactor, and a capacitor voltage divider. The inverter control power supply adopts the imported special SPWM digital waveform generation chip, the frequency resolution is 16 bits, the frequency fineness can reach 0.1Hz at 20~300Hz, and the orthogonal non-synchronous fixed carrier modulation mode is adopted to ensure The output waveform is good throughout the frequency range; the power section uses an advanced IPM module to ensure the instrument is stable and safe.

Main features

1. The reactor with the same voltage level and the same capacity is smaller in volume and lighter in weight; the temperature rise is small at rated load; the dry epoxy casting is used, the mechanical strength is high, the electrical insulation performance is good, and the appearance is beautiful and reliable.

2, variable frequency power control box capacity margin; strong protection function; good output waveform; good stability; with a variety of working modes, easy to operate; single-phase 220V or three-phase 380V input power supply common, convenient on-site power.

3, can be flexibly configured equipment, according to the needs of different types of reactors to meet different test requirements, to achieve a multi-purpose machine, cost-effective.

Main parameters

Output frequency: 20 ~ 300Hz (can be customized)

Working time: full power continuous working time 60min.

Quality factor: 30～90

Unstableness: <0.05%

Working power: 220V ± 15% / 50Hz ± 5%

Frequency adjustment sensitivity: 0.1Hz

Maximum test capacity: 400kVA and below. (customizable)

Resonant voltage waveform: pure sine wave, waveform distortion rate ≤1.0%.

The output voltage of the quota: 0 ~ 220kV (AC RMS) and below.