AC testing of cables and electrical apparatus is now easier than ever!
VLF (Very Low Frequency) Testers are suitable for testing power cables, transformers, switchgear, rotating machinery and other electrical apparatus.
VLF Advantages:
1. Easiest to use Fully automatic microcontroller
2. Built-in printer
3. True sine wave output
4. Real-time display of actual output waveform
5. Ergonomic, menu guided, large backlit LCD
6. Storage of test results for later retrieval and print.
7. Over voltage and current protected
8. Variable frequency 0.1Hz, 0.05Hz, 0.02 Hz
9. Data of current, voltage and waveform directly sampled at HV side.
10. AC testing does not degrade good cable insulation
11. Harmful space charges are not injected into the cable insulation
12. No traveling waves are generated during testing
13. Rugged and reliable design less prone to failure from transients
Technical parameters:
1. Output voltage ratings: 30KV, 40KV,50KV,60KV,70KV, 80kV,90KV
2. Output frequency: 0.1Hz, 0.05Hz, 0.02Hz
3. Measurement accuracy: 3%
4. Positive and negative voltage peak errors: ≤ 3%
5. Voltage wave form distortion: ≤ 5%
6. Use condition: Indoor and outdoor; Temperature: -10C--+40C; Humidity: ≤ 85%RH
7. Power: AC50Hz, 220V +-5%
8. Power supply fuse tube: 10A
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Type
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Output
Voltage/Current
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Load Capacity
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Control Unit
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Booster
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Fuse Tube
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||
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Frequency/Capacitance
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Dim.
(cm)
|
Wt
(kg)
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Dim.
(cm)
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Wt
(kg)
|
|||
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VLF-30/1.1
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30KV/20mA
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0.1Hz ≤ 1.1uF
0.05Hz ≤ 2.2uF
0.02Hz ≤ 5.5uF
|
28×37×22
|
4
|
33×18×34
|
25
|
5A
|
|
VLF-40/1.1
|
40KV/30mA
|
0.1Hz ≤ 1.1uF
0.05Hz ≤ 2.2uF
0.02Hz ≤ 5.5uF
|
28×37×22
|
4
|
35×20×36
|
35
|
6A
|
|
VLF-50/1.1
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50KV/40mA
|
0.1Hz ≤ 1.1uF
0.05Hz ≤ 2.2uF
0.02Hz ≤ 5.5uF
|
28×37×22
|
4
|
37×24×39
|
45
|
7A
|
|
VLF-60/1.1
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60KV/50mA
|
0.1Hz ≤ 1.1uF
0.05Hz ≤ 2.2uF
0.02Hz ≤ 5.5uF
|
28×37×22
|
4
|
33×18×34
33×18×34
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25+25
|
10A
|
|
VLF-70/0.5
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70KV/55mA
|
0.1 Hz, ≤0.5µF
0.05Hz, ≤1.0µF
0.02Hz, ≤2.5µF
|
28×37×22
|
4
|
33×18×34
35×20×36
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25+35
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10A
|
|
VLF-80/0.5
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80KV/60mA
|
0.1 Hz, ≤0.5µF
0.05Hz, ≤1.0µF
0.02Hz, ≤2.5µF
|
28×37×22
|
4
|
33×18×34
37×24×39
|
25+45
|
12A
|