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Intelligent on-line anti-error protection system

A protection system and intelligent technology, applied in grounding switches, pull-out switch cabinets, instruments, etc., can solve problems such as workload of electrical operators, potential safety hazards of personal electric shock, and mistakenly entering live intervals, etc., to facilitate emergency operation, guarantee The effect of electric safety production and preventing misoperation

Inactive Publication Date: 2015-07-08
许天浩
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are the following potential safety hazards: 1. Due to the mechanical interlocking method of "the door of the load side cabinet cannot be opened if the ground knife does not fit", the electrical operator must manually open the insulating baffle to perform the electrical inspection. There are serious hidden dangers of accidental electric shock; 2. When some switch cabinets are used as power cabinets, the mechanical interlock of "the door of the load side cabinet cannot be opened if the ground knife does not fit" is often removed on site to prevent the ground knife from being charged. It brings new potential safety hazards, that is, mistakenly entering the electrified interval; 3. When someone is working on the load side of the switchgear, the switch can still be put into the working position to transmit power, resulting in potential safety hazards of personal electric shock; Electrical operators bring unnecessary workload, reduce work efficiency, and even delay emergency operations in special cases, affecting safe production; Frequent safety production accidents such as shutdowns and power outages

Method used

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  • Intelligent on-line anti-error protection system

Examples

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Effect test

Embodiment 1

[0014] Embodiment 1. The solution proposed in order to solve the potential safety hazards 1 and 2 in the background technology of this specification. When the operator needs to test the load side bus, there is no need to open its insulation baffle, just pull the switch handcart out of the test position and In addition, go to the back of the switch cabinet to check the display status of the high-voltage live display 6. After confirming that the load side is in a state of no electricity, you can open the door of the load side cabinet for electrical inspection operations, which avoids the need to manually open the insulation baffle for the original electrical inspection. The electric inspection method also eliminates the potential safety hazards of operators getting an electric shock and entering a charged interval by mistake.

Embodiment 2

[0016] Embodiment 2. The solution proposed in order to solve the potential safety hazard 3 in the background technology of this specification. When someone is working in the cabinet door on the load side, the present invention will reliably lock the switch handcart so that it cannot be pushed into the working position to transmit power, ensuring The personal safety of the workers.

[0017] Specific implementation, as shown in the figure, when someone is working in the cabinet door on the load side, the cabinet door locker 3 installed on the cabinet door on the load side will detect the position status information of the cabinet door and upload it to the intelligent controller through the line 1, at this time, the intelligent controller 1 will automatically read the uploaded signal data, perform calculation processing, and compare the calculation result data with the pre-stored unlocking target value range, when the result data is within the unlocking target value range When it...

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Abstract

The present invention essentially consists of an intelligent controller, a circuit-breaker dolly locking device, a cabinet-door locking device, a grounding-switch locking device, a high-voltage live-line sensor, and a high-voltage live-line indicator, the intelligent controller being connected to the circuit-breaker dolly locking device, the cabinet-door locking device, the grounding-switch locking device, the high-voltage live-line sensor, and the high-voltage live-line indicator, respectively, by means of a circuit. The present invention completely eliminates from mechanically interlocked fault-proofing apparatuses hidden safety risks such as electrical shock, inadvertent entry into a live space, and closure of a grounding switch in the presence of a live line; allows for continuous online monitoring of the actions of work personnel; prevents accidents from happening and ensures safety for power companies; and is effective, easy to operate, and safe and reliable. The invention can be used independently or can be used as a backup for mechanically interlocked fault-proofing apparatuses, and has wide prospects for application.

Description

technical field [0001] The technical field of preventing misoperation in electric high and low voltage switchgear equipment. Background technique [0002] At present, the high and low voltage switch cabinets commonly used in my country's power system, whether they are domestically produced or foreign brands, generally use mechanical interlocks to prevent misoperation. Although it can prevent the occurrence of some misoperations to a certain extent, it is not complete. There are the following potential safety hazards: 1. Due to the mechanical interlocking method of "the door of the load side cabinet cannot be opened if the ground knife does not fit", the electrical operator must manually open the insulating baffle to perform the electrical inspection. There are serious hidden dangers of accidental electric shock; 2. When some switch cabinets are used as power cabinets, the mechanical interlock of "the door of the load side cabinet cannot be opened if the ground knife does no...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F1/00H02B15/00
CPCH02B1/306H01H31/003H02B11/133H02B13/025
Inventor 许天浩
Owner 许天浩