DC Hipot Tester
DC High Voltage Generator ZGF is important equipment for DC voltage withstand test and leakage current test of HV electrical equipments, cables, surge arresters in maintain service of electrical production, transmission and consumption departments.
Description
DC High Voltage Generator ZGF is important equipment for DC voltage withstand test and leakage current test of HV electrical equipments, cables, surge arresters in maintain service of electrical production, transmission and consumption departments. The tester has a good performance in stability and protection of faulty specimen breakdown. The separate units of tester make the operator keep enough safe distance with high voltage circuit.
Features
1. High accuracy and reliability: high frequency voltage is boosted by multi-double rectifier. The voltage value is stable and high accuracy. The voltage booster circuit is simple which make the tester is high reliable.
2. Small size and light weight: one person can carry the largest DC HV generator (less than 200kV/2mA). That makes the application of the tester simple and easy.
3. Perfect seal by metal housing make the high voltage booster has strong mechanical performance and high insulation ability.
4. High voltage circuit is protected by metal shell which is connected to earth. That makes the application of the tester is safety enough.
5. Protection circuit avoid the wrong operation of tester. All test should start from zero voltage. If the regulator of voltage is not at zero position the tester will be disenabled when switched on.
The leakage current at HV side is measured by digital micro ampere meter. The maximum error of meter can be assured is not more than 1uA.
Technical Specification
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Model Parameters |
120/5 |
200/3 |
200/5 |
300/2 |
300/5 |
|
Rated voltage(kV) |
120 |
200 |
200 |
300 |
300 |
|
Rated current (mA) |
5 |
3 |
5 |
2 |
5 |
|
Rated power(W) |
600 |
600 |
1000 |
600 |
1500 |
|
Control cabinet weight (kg) |
6.5 |
6.5 |
6.5 |
6.5 |
7.5 |
|
Cylinder weight (kg) |
9 |
9 |
9 |
11 |
11.5 |
|
Cylinder height(mm) |
970 |
970 |
970 |
1250 |
1250 |
|
Voltage accuracy |
±(1.0%R±2d) |
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Current accuracy |
±(1.0%R±2d) |
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|
Ripple coefficient |
≤0.5% |
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Voltage stability |
Power voltage ±10%≤1% |
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Over-load capacity |
No-load voltage can exceed the rated voltage of 10% to 10 minutes. Maximum charge current of 1.25 times the rated current. |
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Power |
AC 50Hz 220V±10%, single phase |
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Work mode |
Intermittent use, rated load for 30 minutes |
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|
1.1 times rated voltage：10 minutes |
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Working environment |
Temperature : -10-40℃ |
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Relative humidity：The room temperature is 25 degrees centigrade is not greater than 85% (without dew) |
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Altitude< 1500 m |
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Capacitive load capacity |
The capacitance of the test object is unlimited. |
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Can use 1.5 times rated current charging |
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Structural features |
Electrical insulation cylinder |
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Air insulation, no leakage |
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Control cabinet features |
High precision 0.75UDC1mA single button(accuracy ≤1.0%) Suitable for MOA test |
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Over-voltage setting using a digital DIP switch |
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Portable case, easy for field use. |
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