Today's News

Importance is being attached to ensuring the safety of electric power system from natural disasters.

“To prevent accidents by thunderbolts or strong winds, we are steadily pushing ahead with the readjustment and reinforcement of the power system stage by stage,” said Jon Kyong Il, section chief of the Nampho Municipal Power Distribution Station.

The station has minimized the damage from natural disasters to electricity substations in the city by setting up many electrostatic distributed lightning conductors in them so that they can increase the capability to prevent thunderbolt damage to power transmission and transformation facilities and improved the scientific accuracy in the operation of zinc oxide arresters by introducing efficient arrester performance counters.

According to Jon, the electrostatic distributed lightning conductor disperses electric charges building up at the corner of the objects of protection and on the ground surface into the space around them to prevent thunderbolts and accidents to power transmission and transformation facilities and the counter absorbs thunderbolts or switching overvoltage to ensure the stability of the power system and thus prevent accidents to the power system caused by natural disasters unlike previously.

While actively coping with different accidents, the station not only records correct accident waveforms and carries out the function of communication with a central electric supply unit but also monitors protective devices in real time and collects data on accident analysis. Besides, it introduced an efficient accident distance decision mechanism and an accident analysis system in transmission line protection devices.

It also applied such valuable innovation plans as those for a load power management device capable of measuring, protecting and supervising and controlling electric power and a system of monitoring the state of transformers for the real-time measurement and display of atmospheric temperature and humidity, oil temperature, partial discharge and high frequency content, thereby remarkably reducing the loss of electricity in transmission and keeping a lot of electric power in reserve.