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Distributed comprehensive monitoring and evaluation system for power cable status
Number of views:
1000

Distributed comprehensive monitoring and evaluation system for power cable status

This system is suitable for comprehensive monitoring of the operating status of power cables of 110KV and above, supports GPRS network, provides real-time monitoring data to maintenance personnel, reduces the workload of inspection personnel, and achieves early warning for long-term changes in monitoring points. Prevent emergencies from happening. Real-time understanding of the operating status of the high-voltage cable, by monitoring the partial discharge of the cable, the circulating current of the cable's high-voltage sheath, and the cable optical fiber temperature measurement system (DTS), and on this basis, the real-time core current carrying capacity is analyzed, and the operating status of the cable is monitored. Provide reliable data for maintenance personnel. Through GPRS, CDMA and other wireless transmission methods, the relevant data such as partial discharge, temperature and circulation are transmitted to the back-end server, and then forwarded to the handheld terminal through the server, so that the operation and maintenance personnel can keep abreast of the operation of the cable at any time. Through the three aspects of data, more Effectively judge the running status of the cable.
Free telephone number:0519-85851518
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Product description
Parameters

Partial discharge online monitoring

PD detection sensitivity: 5pC (the distance between the discharge source and the test point is less than 3m)

PD maximum measurable: 10000pC

HFCT bandwidth: 300KHz--30MHz analog input bandwidth;

Sampling rate: 100MS/s single sampling;

Working temperature: -40℃~85℃;

Cable sheath circulating current online monitoring

(1) Measuring range: 0.1A~30A; error range: 1% 0.1A.

(2) The waveform of the ground current can be recorded, and the waveform can be further analyzed in the time domain and frequency domain.

(3) After the test is completed, the development trend chart within a certain period of time can be displayed.

Cable temperature online monitoring

Measuring range: 0℃~125℃; error range: 1℃

Spatial resolution: ≤±1m

Positioning accuracy: ≤±0.5m

Single channel measurement time: no more than 8 seconds (under the conditions of a spatial resolution of ±1 meter and a measurement range of 8 kilometers, the temperature accuracy is ≤±1ºC)

Test channel port: 8 channels

Cable ambient temperature monitoring

The range is -30℃--150℃, which is convenient to assist in the calculation of current carrying capacity.

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