DC hipot tester adopts high frequency pulse width modulation (PWM) technology to make closed adjustment with high voltage stability, small ripple factor and fast reliable protection circuit. The wide temperature LCD screen adopts green back light, which enables clear display either in bright light or in darkness. High-pressure components use Dupont new filling material, making the product more stable and reliable. Products are widely used in electricity power supply departments, power transmission and transformation engineering company and preventive test of large industrial enterprises and scientific research institutes as regulated dc high voltage power supply.
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Voltage (KV)/mA Current (mA) |
Control Box |
High-Voltage Unit |
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Rated Voltage |
Size (mm) |
Weight kg |
Size (mm) |
Weight kg |
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80/3 |
80KV |
310 * 250 * 230 |
6kg |
490*260*220 |
8kg |
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output polarity |
Negative polarity, no-voltage start, linear continuous adjustment |
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working power supply |
50HZ AC220V±10% |
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voltage error |
0.5%±2，minimum solution 0.1KV |
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current error |
0.5%±2，minimum solution 0.1µA |
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ripple factor |
better than 0.5% |
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voltage stability |
Random flunctuation , grid change is 10% , the flunctuation <=0.5% |
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working manner |
Interval working, less than 30 minutes under rated load |
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working condition |
Temperature: 0-40℃, humidity: less than 90% |
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storage condition |
Temperature: -10℃～40℃, humidity: less than 90% |
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altitude |
Lower than 3000 m |
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1. Voltmeter: displays the output voltage. Display unit: KV. Maximum display: 999.9KV
2. Ammeter: displays the output current (including sample’s leakage current and leakage current in the air, etc. )
Maximum display 9999 uA, except special made.
3. Power socket: single phase AC220V±10% 50HZ power input.
4. MOA 75% signal light: signal light is on when voltage change is more than 75% V1mA. The voltmeter displays the highest output voltage value, not the actual output voltage. Once the voltage regulation knob is back to zero, reset, the light is off.
5. Aviation socket: please align positioning pin, and press the plug in, then tighten clockwise to connect socket. Counterclockwise to back out. Note: please hold tight the plug metal rings, do not grasp or pull the line. Improper disassembling or connection will shorten the life span of the connecting line.
6. Ground terminal: connect the ground wire to the grounding screw at the bottom of the generator.
7. MOA 75% button: during test of zinc oxide lightning arrester, V_1mA is high voltage value when leakage current is1mA. Press MOA 75% button, voltage drop automatically to 75% V_1mA, conversion accuracy is better than 0.5%.
8. Voltage rough adjustment knob: Clockwise adjustment is to increase voltage, maximum to 1.1 Ve. Due to the needs of the internal self-test circuit and non-zero start design, adjusting 3/4 clockwise circles does not have voltage output after the potentiometer is back to zero.
9. Voltage fine adjustment knob: When the potentiometer in the middle position adjustment range for the current value of between 3% and 8%
10. Main power switch: Avoid directly turning off high voltage by this switch. Please use the HV switch first.
11. HV switch: Dial up the HV switch to increase voltage. Turn off the switch before shutting off the power after test.
12. Fuse: AC inlet fuse. Please use the matching fuse current value.
13. Build-in knob for overvoltage adjustment: the user can set and adjust overvoltage value within the scope of rated voltage. Overvoltage value can be set statically without increasing voltage. The error is 1%.
14. Overvoltage indicator: when the output voltage is higher than the set voltage, over voltage protection action shuts off high voltage, and overvoltage indicator light is on.
15. Over current indicator: when load current is more than 1.1 times the rated current or short circuit discharges, the indicator light is on, and the high voltage is shut off.
16, HV indicator: Dial up the high voltage switch with booster conditions, high voltage indicator light is green. Setting over voltage value can be operated only when the green light is out and the high voltage switch is off.