Fault distance locating | ||
Distance measurement mode | Low voltage impulse Impulse current | |
Sampling frequency | 100MHz | |
Resolution Ratio | Low voltage impulse:1m Impulse current:4m | |
Voltage of low voltage impulse | 30V | |
Distance measurement range | 30km | |
Blind zone | 2m | |
Audio magnetic synchronization pin-pointing: | ||
Audio signal transmission band | Mid-frequency 400Hz ,bandwidth 200Hz. | |
Gain of signal channel | 80dB | |
Accuracy of pin-pointing | 0.1m | |
Power supply: | ||
Battery | built-in Li-ion battery pack, nominal voltage 7.4V,Capacity 3000mAH | |
Power consumption | 400mA ,work time reach 6 hours | |
Charger | Input AC100-240V, 50/60Hz; output 8.4V, DC 1A | |
Charge time | <4 hours | |
Display | ||
Main unit | 320*240 LCD | |
Other | ||
Volume | 270*150*210mm | |
Weight | 1.5kg | |
Working condition | ||
Tem. | -10ºC-40ºC | |
Humidity | 5-90%RH | |
Elevation | <4500m |
No | Fault | Fault form | Distance test method | Pin-pointing method |
1 | Low resistance | Megger:0 Multimeter:< 200Ω | Low voltage impulse | Audio-frequency(optional) |
Audio magnetic synchronous | ||||
2 | Open circuit | Conductor disconnection | Audio magnetic synchronous | |
3 | High resistance | Megger:>0 Or: Megger:0 Multimeter:≥ 200Ω | Impulse current | |
4 | Breakdown | Megger:insulation normal Withstand voltage test:no |
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