Product Details
VLF AC Hipot Tester - 30kV
Sold By :HV Hipot
Delivery duration : * 8 to 10 Days
Quantity:
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Withstand voltage test is an essential preventive test for electrical equipment. It is divided into two parts: AC and DC withstand voltage test.
Product Details:-
Withstand voltage test is an essential preventive test for electrical equipment. It is divided into two parts: AC and DC withstand voltage test. AC test can be further divided into power frequency, variable frequency and 0.1Hz very low frequency test, among which the last one is highly recommended by IEC, due to its remarkable advantages.
Following is a comparison for DC, Power Frequency, Variable Frequency, and 0.1Hz test.
| Aspects | DC | Power Frequency | Variable Frequency | 0.1Hz |
| Equivalency | poor | good | good | good |
| Insulation Damage | strong | slight | slight | slight |
| Operation Safety | relatively low | relatively low | relatively low | high |
| Wiring Difficulty | complicated | complicated | most complicated | simple |
| Volume | smallest | largest | large | small |
In fact VLF test is the substitute for power frequency test. It is suitable for testing electrical equipment with large capacitance (like power cable, power capacitor, motor, and generator).
Technical Details:-
● Peak voltage: 30kV
● Test frequency: 0.1Hz, 0.05Hz and 0.02 Hz (selectable)
● Maximum load capacity: 1.1μF@0.1Hz / 2.2μF@0.05Hz / 5.5μF@0.02Hz
● Measurement accuracy: 3%.
● Voltage peak value error: ≤3%.
● Voltage waveform distortion: ≤5%.
● Working environment: indoor or outdoor; -10℃-+40℃; 85%RH
● Fuse: 8A (30kV)
● Power supply: 220V ±10%, 50Hz ±5% (If using a portable generator, make sure the output voltage and frequency are stable. Power >3kW, frequency 50Hz, voltage 220V±5%.)
● Capacitance of the tested object shall not exceed the max. rated capacitance of the instrument.
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