China 0.1Hz Vlf Hipot High Voltage Generator Testers 80kv 3

VLF (Very Low Frequency) Testers are suitable for testing power 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 sinusoidal wave form. The printer outputs test reports.
VLF Advantages:
1. Safe Optical isolation technology,
2. Easiest to use Fully automatic microcontroller
3. H/L voltage closed loop negative feedback control
4. Built-in printer
5. Built-in protective resistors
6. True sine wave output
7. Real-time display of actual output waveform
8. Ergonomic, menu guided, large backlit LCD
9. Storage of test results for later retrieval and print.
10. Over voltage and current protected
11. Variable frequency 0.1Hz, 0.05Hz, 0.02 Hz; or 0.1Hz, 0.05Hz, 0.01 Hz
12. Data of current, voltage and waveform directly sampled at HV side.
13. AC testing does not degrade good cable insulation
14. Harmful space charges are not injected into the cable insulation
15. No traveling waves are generated during testing
16. Rugged and reliable design less prone to failure from transients
17. Invatation Patent
18. Portable, only 1 control unit and 1 booster.
19. CE mark.
Safety Features
1. Short circuit protected.
2. Status display of all important safety functions and messages.
3. Safe, easy to use operation with emergency off and key switch lock-out.
4. Fully integrated discharge circuit to safely ground the DUT after testing.
5. Zero start interlock.
6. Zero voltage switching.
Specifications
1. Input: 220 ± 10% Volts AC, 50/60 Hz, single phase.
2. Output-Voltage: AC 30, 40, 50, 60, 70, 80, 90,100KV (DC for optional).
3. Output frequency: 0.1Hz, 0.05Hz, 0.02Hz or 0.1Hz, 0.05Hz, 0.01Hz
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: -10º C to + 50º C.
10. Humidity: ≤ 85%

Model noOutput
Voltage/
Current
(Peak)Load CapacityControl UnitBoosterPower Capacitance/
FreuencyNet Dim.
(cm)Net Wt
(kg)Net Dim.
(cm)Net Wt
(kg)VLF-30 30KV/20mA0.1 Hz, ≤1.1µF
0.05Hz, ≤2.2µF
0.01Hz, ≤10.0µF40x24x31 634x16x30251000WVLF-40 40KV/20mA0.1 Hz, ≤1.1µF
0.05Hz, ≤2.2µF
0.01Hz, ≤10.0µF40x24x31 644x18x37401200WVLF-50 50KV/30mA0.1 Hz, ≤1.1µF
0.05Hz, ≤2.2µF
0.01Hz, ≤10.0µF40x24x31 6
44x19x37
451500WVLF-60 60KV/59mA0.1Hz ≤ 0.5uF
0.05Hz ≤ 1.0uF
0.01Hz ≤ 5.0uF40x24x31 645x20x38
34x16x3045+252000WVLF-70 70KV/59mA0.1Hz ≤ 0.5uF
0.05Hz ≤ 1.0uF
0.01Hz ≤ 5.0uF 40x24x31 645x20x38
34x16x3045+252500WVLF-80 80KV/59mA0.1Hz ≤ 0.5uF
0.05Hz ≤ 1.0uF
0.01Hz ≤ 5.0uF40x24x31 645x20x38
34x16x3045+253000WVLF-90 90KV/59mA0.1Hz ≤ 0.5uF
0.05Hz ≤ 1.0uF
0.01Hz ≤ 5.0uF40x24x31 646x22x38
45x20x3845+45 3500WVLF-100 100KV/59mA0.1Hz ≤ 0.5uF
0.05Hz ≤ 1.0uF
0.01Hz ≤ 5.0uF40x24x31 650x25x40
45x20x3845+554000W

Accessories

Sr no. DescriptionQuantity 1Control unit1unit 2Booster1unit 3Capacitor (0.04µF)1unit 4Discharge rod1unit 5HV Test/Connection cables1set 6Earth cable1unit 7Power supply cable1unit 8Fuse2units 9Printer paper2unit 10Operating manual1unit 11Factory's Calibration report1unit