High-voltage switch cabinet with defect monitoring and comprehensive control functions

Abstract

The invention discloses a high-voltage switch cabinet with defect monitoring and comprehensive control functions. The high-voltage switch cabinet comprises compartments and a comprehensive detection and control device installed in a secondary chamber, and is characterized in that a first metal shielding cover used for installing a sensor is arranged on a partition plate between the cabinet chamberand a bus chamber in a cable chamber of the switch cabinet, a first preset part of the first metal shielding cover is located at the height J which is 10-40cm away from a lower outgoing line of the circuit breaker and at the position which is 0-15cm from a center line of a phase-B outgoing line of the circuit breaker, and at least part of the first preset part is hollowed out. According to the invention, a detection point for insulation defects and a detection point for thermal defects are integrated to the same part, so that the switch cabinet is further transformed into intelligent power supply equipment with self-monitoring, self-protection and self-control.

Description

technical field [0001] The invention relates to the field of power supply and distribution equipment, in particular to a high-voltage switchgear with defect monitoring and comprehensive control functions. Background technique [0002] High-voltage switchgear is commonly used equipment in power supply systems. Its structure usually includes: busbar room, circuit breaker room, cable room, secondary room and its internal components. When the switchgear is manufactured, the problem of how to monitor it is not considered, so the switchgear itself does not have a monitoring function and a corresponding structure. Due to manufacturing quality and equipment aging, various defects and failures will appear inside the switchgear during operation, such as overheating, insulation aging, discharge, flashover, mechanical jamming, action failure and other defects. These defects often end up developing into serious switchgear accidents. Among the various defects of the switchgear, the over...

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Problems solved by technology

Although this solution solves the safety problem of the monitoring system, the problem of incomplete monitoring parts, and the system is too complicated, the inventor further researched and found that: in field practice, if the thermal defect of the switchgear is checked according to the solution Inspection and analysis results often have errors, and it is often difficult to judge whether there is a defect and where the defect roughly occurs

In addition, in order to find various defects of the switchgear in time, people have done a lot of research and developed various types of testing equipment, but these equipments were installed later, thus changing the original structure and state of the switchgear. This will bring difficulties to

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