智能电缆卫士 (Smart Cable Guard) 是一个基于传感器的数字监控平台，可以让电网所有者完全掌控他们的中压电缆网络状态。 该平台将专利技术与全天候监控和支持相结合，能够以前所未有的准确度检测并定位地下电缆的故障和薄弱点。 作为独特的数字监控平台，DNV 的智能电缆卫士可以让电力电缆网络的所有者或运营者高枕无忧。
Smart Cable Guard is a sensor-based digital monitoring system that puts owners in complete control of their medium-voltage cable network. Combing patented technology with 24/7 monitoring and support, it detects and locates faults and weak spots in underground cables with unprecedented accuracy. DNV’s Smart Cable Guard is a unique digital monitoring system that delivers complete peace of mind to anyone that owns or operates MV cable networks
Smart Cable Guard is able to monitor long distances of different types and ages of cables, including switchgear and substations with one single unit. Up to 15 kilometres (10 miles) of XLPE cable and 6 kilometres (4 miles) of PLIC cable can be monitored with low noise.
Weak spots and faults in cables can be pinpointed with an accuracy of less then 1 percent of the length of the circuit. We can do even better: actually we reach an accuracy of 0.3 percent of the length of the circuit.
You will receive information about a fault or weak spot and its location within 5 minutes by SMS and/or email through automated algorithms.
Smart Cable Guard can monitor multiple cable segments of different ages and materials with on system. It monitors, detects and reports faults and partial discharges and their locations, so you own a 2-in-1 system.The system detects 65% of the weak spots and 99% of the faults before they become fatal and cause a unforeseen interruption of the power supply.
Smart Cable Guard is capable of detecting Partial Discharge (PD) activities using two patented time-synchronized sensors which continuously communicate with each other through the cable that is being monitored. The sensors use the live circuit itself to communicate and to check the level of sensitivity that is reached today and for as long as it is monitoring the circuit.