Factors affecting the safe operation of centralized control station

Under the centralized control station operation mode, whether the controlled station can operate safely in unattended state mainly depends on reliable equipment, strict management and personnel quality. 1, with reliable primary and secondary equipment.

To realize unattended or unattended substation, we must first ensure the stability and reliability of primary and secondary equipment in the substation. When a conventional substation is transformed into an unattended substation, it is necessary to consider not only the effective utilization of existing equipment resources, but also the interface between the original protection and automatic device and telecontrol, signal reset, the transformation of transformer neutral point (so that the grounding mode can be changed remotely) and the monitoring and control of tap position of on-load tap changer. Before evacuation, comprehensive overhaul or technical transformation should be carried out to make the equipment performance meet the requirements of unattended substation. When designing a new unattended substation, products with excellent performance, less maintenance workload and high reliability must be considered.

2, should have a reliable communication system.

The operation mode of monitoring station requires higher communication channel conditions and communication system in the station. Remote communication, telemetry, remote control, remote adjustment and remote viewing data uploading and downloading must be guaranteed by reliable communication channels. Selecting advanced and reliable communication modes and communication systems in substations to ensure communication quality and improve the reliability of remote control is an important basic work in the construction of unattended substations.

3, should have a reliable and practical centralized control station automation system.

In order to realize unattended substation, an automatic system with friendly interface, good stability and high reliability must be set up in the centralized control station to realize the monitoring and management of each controlled station. This is the key condition to decide whether the substation can be unattended. In management work, people are always the most critical factor. If you have reliable equipment and strict rules, but no high-quality people to operate and implement them, there is no way to achieve good results. Therefore, it is the key to realize the safe operation of centralized control station to have a professional team with strong sense of responsibility, exquisite technology and stable thinking. For the operation and management personnel of centralized control station, we must pay close attention to training in advance. The personnel on duty in centralized control station must be familiar with the equipment structure and basic principle of each controlled station, familiar with the operation and accident treatment, and familiar with the rules and regulations of this post; Be able to analyze the running state, find and eliminate faults in time, and master certain maintenance skills. These personnel have to go through training steps such as cross-duty, intensive training, and participation in transmission acceptance when the controlled station is connected, and they can only be used after strict examination.