Ground wire ice melting automatic wiring device closing state on-line detection device and detection method

Abstract

The invention discloses a ground wire ice melting automatic wiring device closing state on-line detection device and detection method, and the device comprises a conductive rod, a suspension assembly,an in-place sensor, a moving contact, a drainage conductor, a protection cover, a static contact, and a stop block. The conductive rod is arranged to be an aluminum alloy circular tube conducting rod, and the drainage conductor is fixedly installed at the tail end of one side of the conductive rod. A moving contact is fixedly connected to the end, away from the conductive rod, of the drainage conductor, and a suspension assembly is fixedly connected to the conductive rod. According to the scheme, the sensor adopts a mode of combining a built-in battery and wireless transmission, additional wiring and power supply are not needed on an iron tower, and the installation position is flexible. According to the scheme, the in-place sensor is good in sealing performance and high in protection level, the shell is shielded by metal materials, the in-place sensor is not affected by climatic environment and electromagnetic interference, and the service life is long; the switching-on in-place detection method adopted by the scheme directly acts on the switching-on position, and the accuracy is high.

Description

technical field [0001] The invention belongs to the technical field of on-line detection of the closing state of an automatic wiring device, and more specifically relates to an on-line detection device for the closing state of an automatic wiring device for melting ice of ground wires. At the same time, the invention also relates to a detection method of an on-line detection device for the closing state of the ground wire melting automatic wiring device. Background technique [0002] The existing detection of closing position of the automatic ground wire melting ice wiring device of the transmission line is to generate a torque when the conductive rod is closed and subjected to force. After the torque value reaches the set value of the torque limiter of the motor, the torque limiter is separated, and the proximity switch The separation distance is sensed, and a signal of closing in place is sent out. In most cases in actual use, the closing position can be accurately judged...

AI Technical Summary

Problems solved by technology

In most cases in actual use, the closing position can be accurately judged and the signal is transmitted to the control box. However, since this method is an indirect judgment from the motor end, it is found in actual use that the conductive rod is not in place if the closing is not in place. Larger torque may also be generated when the wind is applied. For example, when the contact of the conductive rod touches the protective cover when the wind is applied, and the contact fingers on the side of the confluence line clip are covered with ice and snow, etc., the proximity switch will falsely report that the switch is in place.

In addition, the outdoor environment where the proximity switch is installed is always faced with harsh operating conditions such as high voltage and high electromagnetics brought by nearby high-voltage lines, coupled with the influence of other factors such as rain, snow, salt spray, wind and sand, high and low temperature alternation, making it The service life is severely shortened. Occasionally, the motor cannot be stopped in time due to the failure of the collection state, resulting in damage to the ground wire melting automatic wiring device or the line.

[0003] The existing distance sensing devices, such as photoelectric sensors, ultrasonic sensors, etc., are similar to metal proximity switches, and most of them are suitable for indoor environments. Directly used in the status detection of this device

In addition, if a pressure sensor is used, the sensor needs to be installed directly on the high-voltage end, and a voltage of hundreds of thousands of volts is applied daily, which may easily cause electrical damage to the sensor.

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