Wireless monitoring system for connection point temperature of high-tension line

Abstract

A high-voltage line junction temperature wireless monitoring system is provided with a clock circuit and an electronic switching circuit in a temperature detecting transmitting device to control the timed power-on and power-off condition of a central processor and even of the whole system, thereby enabling the system to be in a power-off status during most of idling time. Within the time, a battery supplies power only for the clock circuit and the power consumption of the whole system is only about 0.3uA, thereby greatly reducing the power consumption of the system, prolonging the service life of the battery, and furthermore greatly reducing the size of the device for convenient assembly and use. The system adopts an integrated circuit, thereby simplifying structure, reducing size and consequently reducing failure rate. The whole detecting transmitting device is arranged in a metal box to screen out the impact of outside high voltage. As the screening box is very small, no step voltage exists and the invention is particularly suitable for high-voltage environments.

Description

technical field [0001] The invention relates to a detection system for the temperature of a contact point in a high-voltage transmission line, which is suitable for monitoring the temperature of a conductive contact in a high-voltage transmission and distribution system. It is especially suitable for use in equipment with narrow space and high contact voltage such as high-voltage switchgear, high-voltage control box or transformer. Background technique [0002] The traditional method for detecting the temperature of the conductive contacts or connecting parts of the power system is to use a temperature measuring wax. This method is simple and applicable. There are still many high-voltage equipment using this method. Its shortcoming is that this method belongs to passive detection, and the problem cannot be found in the first time. Especially for many existing closed high-voltage equipment can not be checked. [0003] In the prior art, infrared temperature measurement tec...

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Problems solved by technology

[0008] The present invention designs a wireless monitoring system for the contact temperature of the high-voltage line in view of the above-mentioned deficiencies in the prior art, which overcomes the problems of large power consumption, complex structure, and inconvenient installation of the high-voltage line contact temperature monitoring device in the prior art.

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