Very Low Frequency AC Hipot VLF Test Set Electric Cable Fault
Tester ISO Approve
1. Product Name:
Very Low Frequency Cable Withstand Voltage Tester
2. Equipment Description:
The VLF testers (Generator) are suitable for Testing cables,
transformers, switchgear,Rotating machinery, and other Electrical
apparatus.
The product combines modern advanced digital variable frequency
technology and micro computer control together, therefore, it can
realize the full automatic voltage boost, stepdown, measurement and
protection as well as the manual intervention in the process of
automatic voltage boost. The full electronic design ensures the
small size and light weight. The big LCD screen ensures the clear
and visual display, and can display the output wave form. The
printer outputs test reports. In addition, the product has features
as follows:
★ Data of current, voltage, wave form can be directly sampled at
high voltage side, so the data is real and accurate.
★ 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.
★ Overcurrent 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.
★ 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.
3.Specifications:
1. Input: 220 ± 10% Volts AC, 50/60 Hz, single phase.
2. Output-Voltage. 50KV
3. Output frequency: 0.1Hz, 0.05Hz, 0.02Hz.
4. Stability of frequency: Fluctuation < 0.5%
5. Measurement accuracy: ± 3%.
6. Positive and negative voltage peak errors: ≤ 3%.
7. Voltage waveform distortion: ≤ 5%
8. Construction: In two units: Controller and Booster...
9. Ambient conditions of use: Temperature Indoor and outdoor: -10ºC
to + 50ºC.
10. Humidity: ≤ 85%
Type
| Output
Voltage/Current | Load Capacity | Control Unit | Booster | Fuse Tube |
Frequency/Capacitance
| Dim.
(cm) | Wt
(kg) | Dim.
(cm) | Wt
(kg) |
VLF-30/1.1 | 30KV/20mA | 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 | 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 | 60KV/50mA | 0.1Hz ≤ 1.1uF
0.05Hz ≤ 2.2uF
0.02Hz ≤ 5.5uF | 28× 37× 22 | 4 | 33× 18× 34
33× 18× 34 | 25+25 | 10A |
VLF-70/0.5 | 70KV/55mA | 0.1 Hz, ≤ 0.5µ F
0.05Hz, ≤ 1.0µ F
0.02Hz, ≤ 2.5µ F | 28× 37× 22 | 4 |
33× 18× 34
35× 20× 36
| 25+35 | 10A |
VLF-80/0.5 | 80KV/60mA | 0.1 Hz, ≤ 0.5µ F
0.05Hz, ≤ 1.0µ F
0.02Hz, ≤ 2.5µ F | 28× 37× 22 | 4 | 33× 18× 34
37× 24× 39 | 25+45 | 12A |
