The generator DC test can sensitively and effectively find the end defects and intermittent defects of the stator winding, which has become a commonly used method in the insulation test of the generator winding. Because the large-scale water-cooled generator's header conducts a large current, and depending on the water quality, the current generally ranges from 20 to 200 mA at the test voltage. If there is no DC high-voltage generator with sufficient capacity, it will not be able to boost the voltage. ?
The special DC withstand voltage leakage current detection device for internal water-cooled generators is specially developed for generators, especially internal water-cooled generators for leakage current and DC high voltage tests. It is specially designed for various interference current compensation circuits, which can completely eliminate the influence of stray current and the polarization potential interference of the water collecting pipe during the test, and can accurately measure the leakage current of the water-cooled generator winding.
The instrument also has the function of a megohmmeter. Because its short-circuit current can be ≥20mA, it is enough to measure the insulation resistance and absorption ratio of the internal water-cooled generator, and it cannot be replaced by a general shaker. ?
Product Features
1. Adopt intermediate frequency voltage doubler circuit, take the lead in applying the latest PWM pulse width modulation technology and high-power IGBT devices, and according to the electromagnetic compatibility theory, adopt special shielding, isolation and grounding measures, so that the instrument achieves high-quality, portable, and capable Withstand the rated voltage discharge without damage
2. The use of large voltage feedback greatly improves the voltage stability, high output voltage stability, and small ripple coefficient. At the same time, the inverter frequency is increased, and the volume and weight of the instrument and the pressure doubler are reduced. It's easier to carry.
3. Full-scale smooth voltage regulation, fine voltage regulation, regulation accuracy ≤0.5%, stability ≤1%, voltage and current error 1% reading ±0.2kV
4. The overvoltage protection adopts the code setting, which is clear at a glance, and the error is ±1%
5. The voltage doubler is developed by German technology, and the intermediate frequency transformer is specially designed by relevant experts. It has a small volume and large capacity?
6. The use of high-quality components such as the United States and Japan, and the international chassis made in Germany, have strong anti-interference ability, solid and reliable
7. The device adopts a special design, which greatly increases the output current and power of the instrument to meet the requirements of large-capacity loads and has its own one-minute timer alarm.
8. Direct reading of high-voltage total current and leakage current on the chassis panel
Product parameter
1. Specifications and models: 60KV/50mA 60kV/100mA 60kV/150mA 60kV/200mA?
2. Output voltage kV 60KV 60KV 60KV 60KV?
3. Output current mA 50mA 100mA 150mA 200mA?
4. Output power W 3000 6000 9000 12000?
5. Voltage measurement error ≤1.0%±one word?
6. Current measurement error ≤1.0% ± a word?
7. Overvoltage setting error ≤1.0%?
8. Ripple coefficient ≤3.0%?
9. Voltage stability ≤1.0%?
10. Power supply voltage AC 380V±10%50/60Hz?
11.The weight of the chassis is kg 16 18 20 25?
12. Double pressure weight kg 10 12 20 35
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