Product Introduction
Huayi VLF hipot test set combines modern digital frequency conversion advanced technology, adopts microcomputer control, and completes full automation of boosting, stepping down, measurement, and protection. Due to the full electronics, it is small in size, light in weight, large-screen liquid display, clear live, and can display output waveforms and print test reports. The design indicators are in full compliance with the power industry standard , and it is very convenient to use.
Ultra-low frequency high-voltage generator is a high-voltage test device for ultra-low frequency AC withstand voltage test. This device is suitable for electric power departments and industrial and mining enterprises to conduct insulation and withstand voltage tests on polyethylene, cross-linked polyethylene plastic cables and other high-voltage electrical equipment on site. This device is less destructive than the DC withstand voltage test and is equivalent to the AC power frequency withstand voltage
Product Parameter
|
Input voltage |
220V ±10% 50HZ ±1% |
|
Temperature |
0～40℃ |
|
Relative humidity |
≦90% |
|
Output voltage |
0～40KV 0～70KV |
|
Output frequency and on load ability |
0.1HZ: 1.1µ F |
|
0.05HZ; 2.2µ F |
|
|
0.02HZ: 5.5µ F |
|
|
Voltmeter accuracy |
≦3% |
|
Amperemeter accuracy |
≦5% |
|
Model |
Rated voltage |
Load capacity |
Power Fuse |
Reference weight |
|
VLF-30 (30KV) |
30kV/20mA （Peak value） |
0.1Hz,≤0.5µF~1.1µF |
5A |
Controller：4kg Booster：25kg |
|
0.05Hz,≤0.5µF~2.2µF |
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|
0.02Hz,≤0.5µF~5.5µF |
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|
VLF-50 (50KV) |
50kV/30mA （Peak value） |
0.1Hz,≤0.5µF~1.1µF |
7A |
Controller：4kg Booster：50kg |
|
0.05Hz,≤0.5µF~2.2µF |
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|
0.02Hz,≤0.5µF~5.5µF |
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|
VLF-60 (60KV) |
60kV/30mA （Peak value） |
0.1Hz,≤0.5µF |
9A |
Controller：4kg Booster 1（30kV）：25kg Booster 2（30kV）：25kg |
|
0.05Hz,≤0.5µF~1µF |
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|
0.02Hz,≤0.5µF~2.5µF |
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|
VLF-80 (80KV) |
80kV/30mA （Peak value） |
0.1Hz,≤0.5µF |
12A |
Controller：4kg Booster 1（30kV）：25kg Booster 2（50kV）：50kg |
|
0.05Hz,≤0.5µF~1µF |
||||
|
0.02Hz,≤0.5µF~2.5µF |
Product Feature And Application
1. Data of current, voltage, wave form can be directly sampled at high voltage side, so the data is real and accurate.
2. Overvoltage protection: If the output exceeds the set limit of voltage, the instrument will shut-down to protect itself; the actuation time is less than 20ms.
3. Overcorrect protection: it is high-low voltage dual protection in the design, the accurate shut-down protection can be made according to the set value at high voltage side; If the current on low voltage side exceeds the rated current, the instrument will take shut-down protection, the actuation time are both less than 20ms.
4. A high voltage output protective resistor is provided in the voltage boost body in the design and this eliminates the need of additional protective resistor connected outside.
5. With the high and low voltage closed-loop negative feedback control circuit, the output is no capacitance rise effect.
6. Small volume, light weight, easy to carry
7. Has the regulator of frequency, can adjust the output frequency to 0.1,0.05 and 0.02 Hz
8. Can meet different requirement of the high voltage tester for cable and electric equipment with different model
Prodection Details
Accessory
|
Number |
name |
Qty |
|
1 |
0.1Hz/30kV control box |
1 |
|
2 |
0.1Hz/30kV booster |
1 |
|
3 |
0.1µF/30kV shunt capacitor |
1 |
|
4 |
30kV High voltage output line |
1 |
|
5 |
Shunt capacitive high voltage connection line |
1 |
|
6 |
Special control cable |
1 |
|
7 |
power line |
1 |
|
8 |
ground lead |
1set |
|
9 |
70kVdischarging rod |
1 |
|
10 |
10APower fuse |
10 |
|
11 |
Printer paper |
2 |
|
12 |
manual |
1 |
|
13 |
certification |
1 |
|
14 |
Inspection report |
1 |
Prodect Qualification
FAQ
1. Delivery： Fast delivery and Flexible mode of transportation
2. Payment: Choose payment term and payment way you convenient
3. Sale service: 24-hour online contact, Choose the right model of equipment according to your request, give the best offer, support customization
4. Warranty period: All machine quality guarantee for one year and lift-time technical support for you. Online response to customers technical problems.
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