MOEORW-JWFG No partial discharge power frequency withstand voltage test system (mobile) Send email to us

1. Frequency-modulated and voltage-regulated isolated power supply (new voltage control method, replacing the traditional conventional voltage regulator control method, with the following advantages)

a. The output frequency is adjustable from 40 to 300Hz, which can meet the 150Hz triple frequency test;

b. The boost rate can be adjusted linearly and accurately in automatic mode, and the boost step can be stepped by 0.1V, which allows the partial discharge instrument to accurately capture the starting and extinction voltages of the product;

c. Output voltage regulation, the voltage fluctuation of the input power supply will not cause the fluctuation of the output high voltage (voltage regulation accuracy ≤ ±1%);

d. The output waveform is a standard sine wave, which will not be affected by the waveform and harmonics of the input power supply (the effective value and peak value of the output high voltage voltage√2 are less than ±3%);

e. Zero current when the switch is closed, and there is no impact on the front-end input and rear-end load;

f. There is no carbon brush friction and sparking during the voltage increase/decrease process, and the voltage can be increased and returned to zero quickly. During the voltage increase/decrease process, no matter how big the load is, there is no interference or impact on the partial discharge;

g. Purify the power supply and isolate the interference of the inverter and thyristor in the power supply. Users do not need to pull independent cables to deal with power supply interference;

h. The integrated shielding frame structure isolates the impact of space interference on partial discharge noise. Users do not need to do additional space shielding on site.

2. MORORW-PD-V4 portable digital partial discharge detector

a. Portable and compact structure design

b. Input DC or battery power supply to reduce the requirements for power supply interference;

c. Collect data to the host computer through optical fiber or isolated network port to improve the safety and protection of the equipment;

d. Partial discharge gear error linearity ≤1%, detection sensitivity 0.1pC;

e. Output high voltage voltage waveform, effective value, peak value√2, frequency display;

f. Voltage linearity ≤0.5%, minimum resolution 1V,

g. The test bandwidth can be adjusted arbitrarily, and some fixed interference can be shielded through FFT analysis function;

h. Partial discharge starting voltage and extinction voltage capture and data table output function;

i. Video recording and playback and PRPD dotting function;

j. Internal partial discharge automatic correction function, no need for manual wiring and calibration of handheld signal generator.

Equipment operating conditions and instructions:
1. Ambient temperature: -10℃～+50℃;
2. Relative humidity: <80% at +25℃;
3. Altitude: no more than 1000m;
4. Earthquake resistance: Level 8;
5. Use environment: indoor;
6. No requirements for the waveform/interference and harmonics of the power supply voltage;
7. Output current: rated 0.5A-2A (optional customization), resolution 0.1mA, display accuracy <±0.5%;
8. Output voltage: rated 0-500kV, (optional customization) resolution 1V, display accuracy <±0.5%, minimum step-up rate 5V;
9. Partial discharge: rated input 50VP-P greater than 100nC, resolution 0.01pC, automatic gear linearity <±3%;
10. Installation location: There are no gases, steam, dust, dirt, chemical deposits and other explosive and corrosive media that seriously affect insulation;
11. There is a reliable grounding point in the test room, and the grounding resistance is less than 1 ohm;