Accurate fault detection system for underground cable main insulation faults
| Output mode | DC, Single, Cycle | 
|---|---|
| Output voltage | 0-8kV/0-16kV/0-32kV, three voltage switchable | 
| Built-in capacitor | 64μF/16μF/4μF | 
| Discharge energy | 2048J | 
| Impact power | 2000VA | 
| Impulse rate | Automatic impact for about 6 seconds, manual impact for any control time | 
| Safety features | Zero start protection, automatic discharge, over-voltage/current/heat protection (IP54 rating) | 
| Dimensions | 534L×444W×805H mm | 
| Weight | Not more than 120kg | 
| Test methods | Low voltage pulse, Impulse current, Impulse voltage, ARC multiple pulse | 
|---|---|
| Sampling rate | 1MHz~400MHz | 
| Measurement scope | ≥120km | 
| Minimum resolution | 0.07m | 
| Measurement error | ≤±(0.5%×L+1m), L is cable length | 
| Operating conditions | -25℃~+65℃, 85% humidity, 750±30mmHg pressure | 
| Fixed-point modes | Standard, enhanced, noise reduction, custom (ms, waveform) | 
|---|---|
| Positioning accuracy | 0.1m for both fixed point and path | 
| Display | 5-inch TFT (800×480 true color) | 
| Gain | 120dB (auto/manual adjustment) | 
| Working time | More than 8 hours on 4*18650 lithium batteries | 
| Weight | Host 0.6kg; Sensor 1.4kg | 
Note: Special high voltage cables required due to 35kV operation - keep away from site during operation.
