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Product System
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Distributed Intelligent Fault Monitoring System for Transmission Line
System technical indicators 4.1 Technical indicators of the monitoring device l Power supply mode: Inductive coupling power supply mode, line load current range: 16A~1500A; Working hours of backup battery: ≥24h; l Sampling frequency and clock a) Travelling wave sampling frequency: 10 MHz;
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Power IoT sensors Smart power distribution Internet of Things Smart cable tunnel gallery Smart power generation Internet of Things Smart Internet of Things
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Product Details
System technical indicators
4.1 Technical indicators of the monitoring device
l Power supply mode: Inductive coupling power supply mode, line load current range: 16A~1500A;
Working hours of backup battery: ≥24h;
l Sampling frequency and clock
a) Travelling wave sampling frequency: 10 MHz;
b) Power frequency sampling frequency: 3 KHz;
c) System time accuracy: 0.1μs;
l Measuring range, accuracy and recording time
a) Traveling wave current measurement range: 5A~5kA (peak value), measurement accuracy: ≤10%
b) Continuous recording time of traveling wave current: ≥3000us;
c) Power frequency current measurement range: 10A~10kA (effective value), measurement accuracy: ≤10%
d) Continuous recording time of power frequency current: ≥500ms
l Protection level: IP66.
4.2 Technical indicators of the background software system
1) Reliability of fault location location: >99%
2) Positioning error of fault location: <300m
3) Accuracy of identification of lightning strikes and non-lightning strikes: >95%
4) Recognition accuracy rate of shielding failure and counterattack failure: >95%
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