Substation secondary equipment intelligent control system

Abstract

The invention discloses a substation secondary equipment intelligent control system, which comprises a limit switch disposed on a protection pressure plate, a body bit table sensor disposed in a cooler, and a temperature and humidity sensor disposed in a control cabinet. A relay coil is connected in series to a circuit where the limit switch is located. A relay contact is connected in series to the input end of a collector. The output signal of the collector is transmitted to a secondary device computer via a switch. The output signals of the body bit table sensor and the temperature and humidity sensor are transmitted to the secondary device computer through a transmitter and the switch successively. The secondary device computer is connected to a network through a network port. The substation secondary equipment intelligent control system can monitor and compare the real-time state of an outlet pressure plate by using a small number of sensing devices without power outage. A protection device can give a hardware alarm, reports faults, uploads fault records in real time, and achieves state monitoring and remote restart of the switch and a remote engine, and the remote monitoring and the energy-saving operation of a main transformer cooling system and the temperature and humidity of the control cabinet.

Description

technical field [0001] The invention relates to an intelligent management and control system for substation secondary equipment, which belongs to the field of equipment safety. Background technique [0002] With the promotion of automation and online monitoring technology, most of the equipment in the station has realized the whole process of monitoring the operation status, but due to the large number of secondary equipment, the faults involved are multi-faceted and wide-ranging. Before the "Unification" regulations, there were no requirements for the content and hardware configuration of the device information sent by the manufacturer's production equipment, and many of the information obtained by manual operations in daily work failed to achieve remote automatic collection and remote control. E.g: [0003] 1. Status monitoring of the protective platen [0004] There are many types of power equipment, and secondary equipment is the first to bear the brunt. While the rel...

AI Technical Summary

Problems solved by technology

The first point is that the reasons for the failure of the relay protection device to operate normally include: (1) due to quality factors, the reliability of the protection device is reduced during operation; The performance is affected, including the influence of temperature, humidity and vibration

The specific fault point cannot be clearly identified when the device alarm is sent due to the above reasons. In the process of dealing with this type of defect, it will take a long time to retrieve the hardware alarm information inside the device to comprehensively determine the specific problem.

The second point is that in the process of extracting fault reports and fault recordings, protection personnel need to go to the site to print the reports and then analyze them. At the first time a fault occurs, the protection personnel cannot obtain the fault recordings and fault information in the protection device. Timely judgment of fault current and fault location affects the efficiency of fault message analysis and accident judgment

Unattended substations usually require inspectors to go to the substation to find out the defects and eliminate them. The long-term communication interruption during the simple crash processing process is directly related to the long distance of many substations.

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