NRZV Series DC Hipot Test Set for Water Cooled Generator is used for testing DC voltage and DC leakage current of water-cooled generator and other electrical devices in the situation of water through, which completely overcome the problems of long blow water time and bottom water hard to dry which easy to cause arcing within the coil. It is specially designed various kinds of interference current compensation loop, 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.
Overview
Product features
● Adopt medium frequency doubler circuit the first application of the latest technology of PWM (pulse width modulation) and high-power IGBT device and according to the theory of electromagnetic compatibility the use of special shielding isolation and grounding to achieve a high-quality portable and can withstand rated voltage discharge without damage.
● Adopt large voltage feedback to greatly improve voltage stability. At the same time the inverter frequency is increased and the volume and weight of the instrument and the voltage doubler are reduced. It is convenient to carry.
● The data display adopts a large screen with LCD 320×240 dot matrix.
● Using high-quality components imported from the United States Japan and other countries and an international chassis made in Germany it has strong anti-interference ability beautiful and practical.
● The voltage doubler is developed by German technology and the intermediate frequency transformer is specially designed by experts with small volume and large capacity.
● With special design the output current and power of the instrument are greatly increased to meet the requirements of large-capacity loads.
● One-minute timing and tip function.
● Perfect over voltage and over current protection function inside also zinc oxide over voltage protection outside which ensure safety of generator.
● Portable design suitable for on-site testing.
Models
|
Specification kV/mA |
60/100 | 60/120 | 60/200 | 60/300 | 80/200 | 80/300 | 90/150 | 100/200 |
| Output voltage (kV) | 60 | 60 | 60 | 60 | 80 | 80 | 90 | 100 |
| Output current (mA) | 100 | 120 | 200 | 300 | 200 | 300 | 150 | 200 |
| Output power (kW) | 6 | 7.2 | 12 | 18 | 16 | 24 | 13.5 | 20 |
| Weight of controller (kg) | 33 | 33 | 35 | 38 | 38 | 39 | 36 | 40 |
| Weight of doubler (kg) | 10+24 | 10+24 | 10+24 | 14+37 | 15+36 | 15+37 | 14+25 | 17+38 |
| Height of doubler (mm) | 730 | 730 | 730 | 900 | 900 | 900 | 850 | 1000 |
| Voltage measurement error | 1.0%±2 digits | |||||||
| Total current measurement error | 1.0% ± 2 digits | |||||||
| Leakage current measurement error | ± 2.0% (full scale) | |||||||
| Over-voltage setting error | ≤1% | |||||||
| Voltage stability | 1.0% (random fluctuation power supply voltage variation ±10%) | |||||||
| Working mode | Continuous work under rated load ≤ 5 minutes | |||||||
| Power supply | 380V 50Hz | |||||||
| Ambient temperature | -10℃ ~ 40℃ | |||||||
| Relative humidity | Not more than 90% when the temperature is 25°C (no condensation) | |||||||
| Altitude |
Below 2000 meters |
|||||||
