Scope of Application
1. Electrical conductivity test of valve arrester.
2. DC voltage withstand test and leakage current measurement of power transformers.
3. DC withstand voltage test and leakage current measurement of high-voltage cables (35-500kV and below).
4. U1mA DC reference voltage test of zinc oxide lightning arrester and leakage current test at 0.75U1mA.
Nickname: High Voltage Generator; DC high voltage tester; dc voltage generator
Technical parameters
Specification parameters | 200/2 | 200/3 | 200/5 | 300/2 | 300/3 | 300/5 | 400/2 | 400/3 | 400/5 |
Rated voltage (kV) | 200 | 200 | 200 | 300 | 300 | 300 | 400 | 400 | 400 |
Rated current (mA) | 2 | 3 | 5 | 2 | 3 | 5 | 2 | 3 | 5 |
Rated power (W) | 400 | 600 | 1000 | 600 | 900 | 1500 | 800 | 1200 | 2000 |
Control box mass (kg) | 5.5 | 6.0 | 6.5 | 10.5 | 10.5 | 10.5 | 10.5 | 10.5 | 10.5 |
Mass of pressure doubling cylinder (kg) | 8.7 | 9 | 9 | 24 | 24 | 24.5 | 33.5 | 33.5 | 33.5 |
Height of pressure doubling cylinder (mm) | 970 | 970 | 970 | 1250 | 1250 | 1250 | 1650 | 1650 | 1650 |
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% | ||||||||
way of working
| Intermittent use: rated load for 30 minutes | ||||||||
1.1 times rated voltage usage: 10 minutes | |||||||||
work 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 | ||||||||
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 – DC Reference Voltage and Leakage Current Test of Zinc Oxide Lightning Arrester
Arrester rated voltage 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 – Select according to substation voltage level
Substation voltage level kV | 10 | 35 | 66 | 110 | 220 | 330 |
Maximum test voltage kV | 47 | 105 | 135 | 192 | 305 | More 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 – Select according to the repair and test qualification level
Repair and test level | 5 level | 4 level | 3 level | 2 level | 1 level |
Maximum test voltage kV | 28 | 90 | 168 | 305 | More than 400 |
Equipment selection kV / mA | ZGF - 60 / 2 | ZGF - 120 / 2 | ZGF - 200 / 2 | ZGF - 400 / 3 | ZGF - 800 / 10 |
Selection reference – Test of DC withstand voltage and leakage current for paper insulated cables
Cable rated voltage 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 – Test of DC withstand voltage and leakage current of rubber-plastic insulated cable
Cable rated voltage 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 – Self-capacitive oil-filled cable main insulation DC withstand voltage and leakage current test
Cable rated voltage 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 |
Feature
1.The DC high voltage generator has a small ripple coefficient, stable and reliable voltage output, no noise, and good reliability
2. With over-voltage, over-current, zero-voltage start-up and fault protection functions, the voltage protection value can be set and displayed intuitively
3. Digital display of voltage and current, and readings when power is on, which is convenient for monitoring the output status
4. With a voltage conversion of 0.75 times, convenient for testing zinc oxide lightning arresters
5. Compact product structure, small size, easy to carry
