Equipotential live working method for entering electric field of high-voltage transmission line

A technology for high-voltage transmission lines and entering the electric field, applied in the direction of overhead lines/cable equipment, etc., can solve the problems of operators being unable to maintain a half-squatting state, the distance between tensile insulator strings is long, and the labor intensity of operators is high, and the material is lightweight. , The distance between strings is large, reducing the effect of shaking

Active Publication Date: 2015-08-05
STATE GRID CORP OF CHINA +2
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  • Claims
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Problems solved by technology

[0003] 1) The distance between the tension insulator strings of high-voltage transmission lines is relatively long. When an equipotential electrician enters the electric field, his hands must be kept straight all the time. The operator cannot maintain a half-squat state and has difficult

Method used

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  • Equipotential live working method for entering electric field of high-voltage transmission line
  • Equipotential live working method for entering electric field of high-voltage transmission line
  • Equipotential live working method for entering electric field of high-voltage transmission line

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Example Embodiment

[0021] In the present invention, the high-voltage transmission line enters the electric field with the equipotential electrification method, and the equipotential electrician enters the electric field along the tensile insulator string in the electric field entry and exit vehicle. The electric field entry and exit vehicle can move forward or backward on the two strings of tensile insulators.

[0022] A specific embodiment of the electric field used in the method of the present invention to enter and exit the vehicle, such as Figures 1~3 shown. The electric field in and out of the car can be pedal-type, and it can move forward or backward by pedaling, and other driving methods can also be used. As a foot pedal type, the foot pedal 2 is mounted on the vehicle body through a rotating shaft.

[0023] The traveling mechanism of the electric field entering and leaving the vehicle is a crawler type, and the crawler belts on both sides are respectively pressed on two parallel strin...

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Abstract

The invention relates to an equipotential live working method for entering electric field of a high-voltage transmission line. An equal potential electrician takes an electric field entering-and-outing vehicle for entering the electric field along tension insulator strings. The electric field entering-and-outing vehicle can advance or retreat on two tension insulator strings. According to the method, the equal potential electrician enters the electric field in a sitting gesture, thereby reducing physical power consumption of operation personnel. Compared with an electric field entering method in which the left foot and the right foot are respectively placed on a first insulator and a third insulator and the left hand and the right hand are placed on two insulators on the other insulator string, the method of the invention has an advantage of making the operator more comfortable and more convenient, so that the operator has enough physical power for finishing the subsequent live operation. The electric field entering-and-outing vehicle of the invention has advantages of simple integral structure, small material weight, low studying cost of the operator, and easy operation. Furthermore high operation efficiency and high operation safety can be ensured.

Description

technical field [0001] The invention belongs to the field of ultra-high voltage power transmission and transformation, and in particular relates to a method for equipotential electrified operation of a high-voltage power transmission line entering an electric field. Background technique [0002] When a fault occurs on an ultra-high voltage transmission line, due to the large transmission power of the line, it is often necessary to adopt the method of live fault elimination. It is a relatively traditional way to enter the electric field freely along the insulator string by using the "cross two short three" method. However, this method has the following disadvantages: [0003] 1) The distance between the tension insulator strings of high-voltage transmission lines is relatively long. When an equipotential electrician enters the electric field, his hands must be kept straight all the time. The operator cannot maintain a half-squat state and has difficulty moving; [0004] 2) ...

Claims

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Application Information

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IPC IPC(8): H02G1/02
Inventor 雷冬云任承贤邹德华梅文建甄朝辉曾文远汪志刚石凯袁黎冯刚李辉童诚欧乃成夏增明刘治国唐力郑克全何龙飞
Owner STATE GRID CORP OF CHINA
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