MEWJF-220BHS Transformer Inductive Withstand Voltage and Partial Discharge Measurement System Send email to us

System functions:
a) The variable frequency power supply adopts a linear power amplifier circuit, with a perfect sine wave output and low waveform distortion
b) It has the function of automatic voltage stabilization adjustment
c) It is safe and reliable. This device integrates a variety of protections, including: discharge breakdown protection, overvoltage, overcurrent setting protection, output short circuit protection, power-on zero position protection, bridge arm amplification circuit protection, power curve protection, etc. When any protection occurs, the device immediately blocks the test voltage output and cuts off the main circuit power supply to ensure the safety of the test personnel, the test product and the test system
d) Use optical fiber to transmit high-voltage measurement signals to completely isolate the high-voltage and low-voltage circuits
e) Automatic/manual control modes
f) 320*240-point LCD display and multiple rotating mice provide a friendly human-machine interface, which is easy and fast to operate and wire, and truly "learn at a glance"
g) Synchronous voltage, current and frequency display
h) Output frequency is continuously adjustable within the range of 20-300Hz
i) Output voltage is continuously adjustable within the range of 0-350V
j) With resonant withstand voltage test function
k) With automatic resonant frequency search function, multiple automatic sweep frequency segments can be set
Small size, light weight, flexible to carry, very suitable for on-site use.

Device model: MEWJME-220BHS
Transformer partial discharge, induction withstand voltage variable frequency series resonance test system
1) Rated working input power: 380V±10% (three-phase); 50Hz;
2) Rated output power of variable frequency power supply: 300kW;
3) Output phase number: single phase
4) Adjustable frequency range: 20Hz~300Hz, when the frequency is adjusted within the set range, the voltage is output at a constant level
5) Output frequency resolution: 0.01Hz
6) Output frequency instability: ≤0.05%
7) Output voltage waveform is a sine wave: waveform distortion rate ≤1.0%
8) System partial discharge amount: ≤10pC
9) System working time: 180min running time during transformer partial discharge test; 60min running time during resonance withstand voltage test
10) Insulation level: withstand voltage for 1min at 1.2 times rated voltage
11) Noise level: ≤75dB
12) Variable frequency power supply capacity: 300kW (push-pull linear amplifier)