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General bus grounding trolley and method for switch cabinet

A busbar grounding and switchgear technology, which is applied to the grounding device of switchgear, pull-out switchgear, switchgear, etc., can solve the problems of unreliable grounding, lack of grounding handcart, and inconvenient maintenance work, etc., to achieve grounding safety Reliable, reduce the workload of transportation inspection, and use fast and accurate results

Pending Publication Date: 2022-04-29
YIHE ELECTRIC GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the KYN28A-12kV switchgear in the relatively old substation is not equipped with a special grounding handcart, and it needs to rely on a special grounding rod for grounding during maintenance and grounding. In actual operation, there is a problem of unreliable grounding.
At the same time, there is currently no grounding handcart equipment in the handcart market that can accommodate multiple manufacturers, different heights, and various structures. It is necessary to equip multiple handcart equipment during maintenance, which brings great inconvenience to the maintenance work

Method used

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  • General bus grounding trolley and method for switch cabinet
  • General bus grounding trolley and method for switch cabinet
  • General bus grounding trolley and method for switch cabinet

Examples

Experimental program
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Effect test

Embodiment 1

[0022] Such as figure 1 As shown, the present embodiment provides a switchgear universal busbar grounding trolley, including a car body, a valve opening device, a swing-in mechanism and a grounding device; the car body is provided with a mounting plate, and several arrays are arranged on the mounting plate The installation slots are arranged in the same way, and the installation slots are used to accommodate grounding devices of different specifications and models. The grounding devices include moving contacts, contact arms, cables and handcart grounding bars connected in sequence.

[0023] The vehicle body includes a compartment, a vehicle frame, wheels and handles. A vehicle frame is installed at the bottom of the compartment, and wheels are installed on the front and rear ends of the left and right sides of the vehicle frame. The wheels can drive the vehicle body to move, and the rear of the vehicle frame A handle is installed on the side, and the trolley can be pushed to m...

Embodiment 2

[0032] This embodiment provides a working method of a common busbar grounding trolley for a switchgear, including:

[0033] Shake the car body into the circuit breaker room of the switch cabinet through the rocking mechanism, and at the same time, the movable opening device opens the valve;

[0034] By connecting the moving contact of the grounding device to the static contact of the cabinet, the busbar is connected to the cabinet in sequence through the moving contact, cable, and grounding bar of the handcart to realize three-phase short circuit and grounding.

[0035] Specifically, during power outage maintenance, firstly, the trolley body is rocked into the circuit breaker room of the switch cabinet through the rocking mechanism, and the valve is automatically opened at the same time (see attached figure 2 ); the maintenance personnel check whether the static contacts are live through the effective electric test rod; after confirming that there is no electricity, the maint...

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Abstract

The invention provides a switch cabinet universal bus grounding trolley and method. The switch cabinet universal bus grounding trolley comprises a trolley body and a grounding device. A mounting plate is arranged in the trolley body, a plurality of mounting grooves arranged in an array mode are formed in the mounting plate, the mounting grooves are used for containing grounding devices of different specifications and models, and each grounding device comprises a moving contact, a contact arm, a cable and a handcart grounding bar which are connected in sequence; according to the trolley, the bus grounding function is achieved through meshing of the movable contact and the static contact, the push plates of various schemes are arranged to adapt to copper cables of different manufacturers and different lengths to adapt to different heights, the universal bus grounding trolley for the KYN28A-12kV switch cabinet is achieved, the operation mode is more portable and flexible, use is faster and more accurate, and the trolley is suitable for popularization and application. And emergency tasks or first-aid repair work can be handled in time.

Description

technical field [0001] The invention belongs to the technical field of electric power equipment, and in particular relates to a universal busbar grounding trolley and a method for a switch cabinet. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] At present, the KYN28A-12kV switchgear in the relatively old substation is not equipped with a special grounding handcart, and it needs to rely on a special grounding rod for grounding during maintenance and grounding. There is a problem of unreliable grounding in actual operation. At the same time, there is no grounding handcart equipment in the handcart market that can accommodate multiple manufacturers, different heights, and various structures. Multiple handcart equipment must be equipped during maintenance, which brings great inconvenience to the maintenance work. How to make the grounding tr...

Claims

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Application Information

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IPC IPC(8): H02B11/28H02B11/127H02B11/167
CPCH02B11/28H02B11/127H02B11/167
Inventor 刘长华王淑芳付桂霞张鑫刘晓航费毅军
Owner YIHE ELECTRIC GRP
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