Chongqing power supply enterprises monitor cable operation in real time

On the morning of February 27, the employees of the State Grid Chongqing Urban Power Supply Company Daniel Zhang open their computers in the office, click the mouse, and monitor the cable equipment in the cable tunnel of the 220 kV water mill substation through the cable integrated online monitoring system
.

There are 9 110 kV lines in the 220 kV water mill substation outlet cable tunnel, connecting two 110 kV substations, and if the cables in the tunnel fail, it may cause the two 110 kV substations to lose power
.
Therefore, the company installed an integrated online monitoring system for cables in the tunnel to monitor
it online in real time.
This monitoring system realizes online monitoring of the environmental status and the operation status of cable equipment in the tunnel through video surveillance, infrared monitoring, wireless voice communication, optical fiber temperature measurement, water level monitoring, harmful gas monitoring, cable sheath current monitoring
and other system function modules, combined with three-dimensional simulation and geographic information technology.
"When the system finds abnormal data, it will send out alarm information and timely communicate it to the operation and maintenance personnel
through system alarm and SMS.
"

Daniel Zhang said that at the beginning of this year, they found that the current temperature of the sheath in the Panlong tunnel was abnormal through online monitoring of the sheath current, and eliminated it in time
.

At present, the company has installed online monitoring systems in 13 cable tunnels under its jurisdiction, just like installing "eagle eyes" on cable tunnels, and the cable operation is in full view
.
The company plans to achieve full coverage of online monitoring of important cable tunnels in the core area of the main city in 2019 and comprehensively improve the level
of lean cable management.