Power transmission line fault indicator

Abstract

The invention relates to a power transmission line fault indicator. The indicator comprises an upper box body and a lower box body, wherein the upper and lower box bodies are hinge connection, the center of the bottom of the upper box body is provided with an upper notch, and the center of the top of the lower box body is provided with a lower notch. The interior of the upper box body is provided with an upper semi-ring iron core, and the interior of the lower box body is provided with a lower semi-ring iron core and a control circuit board. An articulated shaft is provided with a torsional spring which enables the upper box body to be closed on the lower box body. The main body part of the torsional spring extends forwards from two sides of the upper box body to the front part of the upper notch, and the front end of the main body part extends downwards in an inclined manner. The bottom of the lower notch is fixedly connected with a cushion block, wherein the center of the top of the cushion block is provided with a groove. The bottom of the lower box body is also provided with an indicating device, and the indicating device comprises a semispherical outer housing which is fixedly connected at the bottom of the lower box body and equipped with a plurality of windows, and a semispherical inner housing which is located in the semispherical outer housing and equipped with a plurality of windows. The indicating device also comprises a driving part which drives the semispherical inner housing to rotate. The windows of the semispherical outer housing and the windows of the semispherical inner housing are enabled to be completely opposite from a state of completely staggering under the driving of the driving part. The indicating device also comprises a semispherical transparent shield.

Description

technical field [0001] The invention belongs to the technical field of transmission line fault detection, in particular to a transmission line fault indicator. Background technique [0002] As an important infrastructure for the national economy and the people's livelihood, power transmission lines are particularly important to ensure their safe operation. Due to natural factors and human factors, transmission lines usually have various faults, such as open circuit caused by disconnection of transmission line, short circuit of transmission line to ground, short circuit between phase lines, etc. It is very important to find and deal with the above faults in time . The existing fault indicators use the principle of current transformers, take the transmission line as the primary winding, install the annular iron core wound with the secondary winding on the indicator, detect the power supply of the line through the induced potential of the secondary winding, and then The detec...

AI Technical Summary

Problems solved by technology

Since the poles of transmission lines are usually very high, the above-mentioned installation process needs to be carried out after the construction personnel have mounted on the poles, and the operation of opening the compression spring mechanism and installing the indicator on the transmission line is not only cumbersome and inconvenient for loading and unloading, but also causes Construction workers may be in contact with power lines, so in order to ensure safety, power must be cut off for construction, which in turn leads to economic losses

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