1.1Application
The VLF Very low frequency Tester is applied in power cable and generator insulation test in power system
1.2Technical index
1 Max voltage output: refer to table 1
2 Output frequency: 0.1Hz, 0.05Hz, 0.02Hz
3 Measurement error < 3%RDG+0.3%FS
4. Positive and negative voltage peak errors < 3%RDG+0.3%FS
5 Power supply:AC220V ± 10%, 50Hz/60Hz
6 Voltage wave form distortion: <5%
7 Environment temperature: 0~50°C
8 Humidity: ≤85%RH
Table 1 parameters for very low frequency tester
Model no | Rated Voltage/current | Load Carrying Capacity | Product Structure and Weight |
VLF-30 | 30kV/20mA (Peak) | 0.1Hz, ≤ 1.1µ F | Controller: 4kg Booster: 25kg |
0.05Hz, ≤ 2.2µ F | |||
0.02Hz, ≤ 5.5µ F | |||
VLF-50 | 50kV/30mA (Peak) | 0.1Hz, ≤ 1.1µ F | Controller: 4kg Booster: 50kg |
0.05Hz, ≤ 2.2µ F | |||
0.02Hz, ≤ 5.5µ F | |||
VLF-80 | 80kV/30mA (Peak) | 0.1Hz, ≤ 0.5µ F | Controller: 4kg Booster Grade 1(30kV): 25kg Booster Grade 2(50kV): 50kg |
1 Application Very Low Frequency Generator Insulation Test set is applied in power cable and generator insulation test in power system. 2 Technical Index 1 Max voltage output: refer to table 1 2 Output frequency: 0.1Hz, 0.05Hz, 0.02Hz 3 Measurement error < 3%RDG+0.3%FS 4 ...
Main Applications: VLF electromagnetic prospector applies electromagnetic wave transmitted by very-low frequency radio station as field source, to measure the many parameters change influenced by various geological bodies. DSHS-3 VLF (very low radio frequency) electromagnetic ...