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Building 6, Optics Valley Electromechanical Industrial Park, No. 84 Gaoxin 5th Road, Donghu New Technology Development Zone, Wuhan City, Hubei Province
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Wuhan Ultra High Voltage Power Technology Co., Ltd
DC high voltage generator
NegotiableUpdate on 05/06
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Overview
The ZGF series DC high-voltage generator adopts a high-frequency voltage doubling circuit, applies * PWM high-frequency pulse width modulation technology, closed-loop adjustment, and adopts voltage feedback to greatly improve voltage stability. Use high-performance high-power IGBT devices and driving technology, and adopt special shielding, isolation, and grounding measures based on electromagnetic compatibility theory. This instrument achieves high quality, portability, and can withstand rated voltage discharge without damage. It has the characteristics of high output power and small size, reliable overvoltage, overcurrent, and zero position closing protection functions, and has a 0.75 times voltage switching function.
Product Details
Product parameters
technical parameters
| Specifications | 200/2 | 200/3 | 200/5 | 300/2 | 300/3 | 300/5 |
| Rated voltage (kV) | 200 | 200 | 200 | 300 | 300 | 300 |
| Rated current (mA) | 2 | 3 | 5 | 2 | 3 | 5 |
| Rated power (W) | 400 | 600 | 1000 | 600 | 900 | 1500 |
| Control box mass (kg) | 5.5 | 6.0 | 6.5 | 6.5 | 6.5 | 7.5 |
| Mass of pressure doubling cylinder (kg) | 10.3 | 10.3 | 10.3 | 11.5 | 11.5 | 11.5 |
| Height of pressure doubling cylinder (mm) | 970 | 970 | 970 | 1250 | 1250 | 1250 |
| voltage accuracy | ± (1.0% reading+2 words) | |||||
| Current accuracy | ± (1.0% reading+2 words) | |||||
| ripple factor | ≤0.5% | |||||
| voltage stability | ≤ 1% when the power supply voltage changes by ± 10% | |||||
| overload capacity | The no-load voltage can exceed the rated voltage by 10% and be used for 10 minutes | |||||
| The maximum charging current is 1.25 times the rated current | ||||||
| power supply | Single phase AC 50Hz 220V ± 10% | |||||
| working method | Intermittent use: rated load for 30 minutes | |||||
| 1.1 times rated voltage usage: 10 minutes | ||||||
| working environment | Temperature: -10 ℃ to+40 ℃ | |||||
| Relative humidity: not exceeding 85% at room temperature of 25 ℃ (no condensation) | ||||||
| Altitude: below 1500 meters | ||||||
| Capacity with capacitive load | The capacitance of the test sample is unlimited | |||||
| Can be charged with 1.5 times the rated current | ||||||
| structural characteristics | Electrical insulation voltage doubling cylinder | |||||
| Air insulation, no leakage concerns | ||||||
| Characteristics of the operation box | High precision 0.75UDC1mA single touch button (accuracy ≤ 1.0%), suitable for testing zinc oxide lightning arresters | |||||
| Overvoltage protection adopts digital dip switch, which is clear at a glance | ||||||
| Portable chassis, more convenient on-site | ||||||
Selection reference
Selection Reference - Zinc Oxide Surge Arrester DC Reference Voltage and Leakage Current Test
| Rated voltage of lightning arrester (kV) | 10 | 35 | 66 | 110 | 220 |
| DC reference voltage kV | 28 | 90 | 135 | 168 | 314 |
| Equipment selection kV/mA | ZGF - 60 / 2 | ZGF - 120 / 2 | ZGF - 200 / 2 | ZGF - 200 / 2 | ZGF - 400 / 3 |
Selection reference - choose according to the voltage level of the substation
| Substation voltage level kV | 10 | 35 | 66 | 110 | 220 | 330 |
| Maximum test voltage kV | 47 | 105 | 135 | 192 | 305 | Greater than 400 |
| Equipment selection kV/mA | ZGF - 60 / 2 | ZGF - 120 / 2 | ZGF - 200 / 2 | ZGF - 200 / 2 | ZGF - 400 / 3 | ZGF - 800 / 10 |
Selection reference - choose based on the qualification level of repair and testing
| Maintenance and testing level | Level 5 | Level 4 | Level 3 | Level 2 | Level 1 |
| Maximum test voltage kV | 28 | 90 | 168 | 305 | Greater than 400 |
| Equipment selection kV/mA | ZGF - 60 / 2 | ZGF - 120 / 2 | ZGF - 200 / 2 | ZGF - 400 / 3 | ZGF - 800 / 10 |
Selection reference - DC withstand voltage and leakage current test of paper insulated cable
| Rated voltage of cable Uo/U kV | 3.6 / 6 | 6 / 6 | 6 / 10 | 8.7 / 10 | 21 / 35 | 26 / 35 |
| DC test voltage kV | 17 | 30 | 40 | 47 | 105 | 130 |
| Equipment selection kV/mA | ZGF - 60 / 2 | ZGF - 60 / 2 | ZGF - 60 / 2 | ZGF - 60 / 2 | ZGF - 120 / 3 | ZGF - 200 / 5 |
Selection reference - Rubber insulated cable DC withstand voltage and leakage current test
| Rated voltage of cable Uo/U kV | 6 / 10 | 8.7 / 10 | 21 / 35 | 26 / 35 | 48 / 66 | 64 / 110 | 127 / 220 |
| DC test voltage kV | 26 | 37 | 63 | 78 | 144 | 192 | 305 |
| Equipment selection kV/mA | ZGF - 60 / 2 | ZGF - 60 / 2 | ZGF - 120 / 5 | ZGF - 120 / 5 | ZGF - 200 / 5 | ZGF - 200 / 10 | ZGF - 400 / 5 |
Selection reference - DC withstand voltage and leakage current test for main insulation of self accommodating oil filled cable
| Rated voltage of cable Uo/U kV | 48 / 66 | 64 / 110 | 127 / 220 | 190 / 330 | 290 / 500 |
| DC test voltage kV | 175 | 275 | 475 | 585 | 775 |
| Equipment selection kV/mA | ZGF - 200 / 3 | ZGF - 300 / 3 | ZGF - 500 / 5 | ZGF - 600 / 5 | ZGF - 800 / 10 |
Product features
1DC high voltage generatorHas low ripple coefficient, stable and reliable voltage output, no noise, and good reliability
2DC high voltage generatorEquipped with overvoltage, overcurrent, zero voltage starting and fault protection functions, the voltage protection value can be set and displayed intuitively
3. Voltage and current are displayed digitally, and there are readings when the power is turned on, making it easy to monitor the output status
4. Equipped with 0.75 times voltage conversion, convenient for testing zinc oxide lightning arresters
5. The product has a compact structure, small size, and is easy to carry
