Intelligent medium-voltage insulation characterization non-contact potential measurement switch cabinet

Abstract

The invention discloses an intelligent medium-voltage insulation characterization non-contact potential measurement switch cabinet which comprises a cabinet body, a bus room, a cable room, an instrument room, a handcart room, an intelligent circuit breaker, a chassis, a controller, an insulating sleeve, an upper contact arm, a lower contact arm, a dehumidification blower fan, a temperature and humidity sensor, a non-contact potentiometer, a driving motor, a liquid crystal touch screen, a panoramic camera, a temperature measuring assembly, a characterization detecting assembly, and a pressure sensor. The controller, the liquid crystal touch screen and the panoramic camera are arranged in the instrument room. The handcart room is equipped with the intelligent circuit breaker and the chassis. The outlet of the dehumidification blower fan is communicated with an air duct. The panoramic camera is arranged in a full view manner. According to the intelligent medium-voltage insulation characterization non-contact potential measurement switch cabinet, through a three-ring parallel type surface detecting assembly, intelligent monitoring is performed on the switch cabinet by means of a condensation sensor, a pollution sensor, a Rockwell coil and the temperature and humidity sensor. The pressure sensor and the non-contact potentiometer cooperate with each other to monitor the mechanical characteristics of the intelligent circuit breaker, and intelligence of the whole medium-voltage switch cabinet is realized.

Description

technical field [0001] The invention relates to the technical equipment field of an intelligent medium-voltage central switchgear, in particular to an intelligent medium-voltage insulation representative pressure non-contact position measuring switchgear. Background technique [0002] With the promotion of smart grid, the market urgently needs related smart equipment, the intelligent transformation of traditional substations and the intelligent application of newly designed substations are imperative; power switchgear is one of the most commonly used equipment in the power field, its reliability, Controllability and safety will directly affect the safe operation and fault prevention of the power system; the medium voltage switchgear is a kind of switching electrical equipment in the power switchgear, the external current first enters the main control switch in the cabinet through the wire, and then enters the sub-control switch Connect with each branch; each branch needs to ...

AI Technical Summary

Problems solved by technology

The intelligence of the medium voltage switchgear is firstly the intelligence of the circuit breaker and the intelligence of the switchgear; the shortcomings and deficiencies in the prior art are that the condensation of insulating parts accounts for a considerable proportion of insulation accidents, and the insulation of insulating parts Pollution leads to a reduction in insulation performance, and the status and life of equipment cannot be known in a timely and accurate manner. It is necessary for the power manager to carry out manual and regular maintenance on site. Some hidden troubles cannot be discovered in time. This is also a problem that has plagued the safety of power production for many years; now Leakage current detection is usually used in existing technologies, but when leakage current occurs in insulating parts, the insulation performance of insulating parts has undergone irreversible changes, and it is impossible to detect, detect and prevent condensation and pollution of insulating parts in the early stage ; During the operation of the chassis vehicle in the prior art, there will be mechanical or electrical blocking, and the operation cannot be performed, especially when the blocking occurs, the relevant state information cannot be captured. Once it occurs, it will cause damage to the power transmission and transformation system Huge losses; real-time control, monitoring, and diagnosis of medium-voltage switchgear; early inspection of insulation components for condensation and pollution, and the insurance method that can detect the situation of chassis vehicle refusal to block, and develop intelligent medium-voltage switchgear with corresponding functions. And integrated into the entire grid to ensure the safety of the overall grid operation of power generation, transmission, distribution, and consumption

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