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
Specifications | 200/2 | 200/3 | 200/5 | 300/2 | 300/3 | 300/5 | 300/5 | 300/10 | 400/2 | 400/3 | 400/5 |
Rated voltage（kV） | 200 | 200 | 200 | 300 | 300 | 300 | 300 | 300 | 400 | 400 | 400 |
Rated current（mA） | 2 | 3 | 5 | 2 | 3 | 5 | 5 | 10 | 2 | 3 | 5 |
Rated power（W） | 400 | 600 | 1000 | 600 | 900 | 1500 | 1500 | 3000 | 800 | 1200 | 2000 |
Control box quality（kg） | 5.5 | 6.0 | 6.5 | 6.5 | 6.5 | 7.5 | 7.5 | ||||
Pressure cylinder quality（kg） | 8.7 | 9 | 9 | 11 | 11 | 11.5 | 11.5 | ||||
Double cylinder height（mm） | 970 | 970 | 970 | 1250 | 1250 | 1250 | 1250 | ||||
Voltage accuracy | ±(1.0%Reading + 2 words) | ||||||||||
Current accuracy | ±(1.0%Reading + 2 words) | ||||||||||
Ripple coefficient | ≤0.5% | ||||||||||
Voltage stability | When the power supply voltage changes by ±10%≤1% | ||||||||||
Overload capability | No-load voltage can exceed 10% of rated voltage for 10 minutes | ||||||||||
The maximum charging current is 1.25 times the rated current | |||||||||||
Power supply | Single phase communication 50Hz 220V±10% | ||||||||||
Way of working | Intermittent use: rated load 30 minutes | ||||||||||
1.1 times rated voltage usage: 10 minutes | |||||||||||
Way of working | temperature：-10℃～+40℃ | ||||||||||
Relative humidity: no more than 85% at room temperature of 25 ° C (no condensation) | |||||||||||
Altitude: below 1500 meters | |||||||||||
With capacitive load capacity | The tested product has unlimited capacity | ||||||||||
Charged with 1.5 times rated current | |||||||||||
Structural features | Electrical insulation double | ||||||||||
Air insulation, no leakage | |||||||||||
Operating box features | High-precision 0.75UDC1mA one-touch button (accuracy ≤1.0%), suitable for zinc oxide lightning arrester test | ||||||||||
Overvoltage protection using digital dial switch, 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
