Accurate fault detection system for underground cable main insulation faults
Output mode | DC, Single, Cycle |
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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 |
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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) |
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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.