Backup protection device capable of automatically identifying lightning current and short-circuit current
A backup protection device and automatic identification technology, applied in the protection of overcurrent response, emergency protection circuit device, electrical equipment structural parts and other directions, can solve the problems of complex installation structure, easy water damage, time-consuming and labor-intensive, etc. Achieve the effect of simple installation structure, reduced friction and easy replacement
Inactive Publication Date: 2021-11-02
颐通台州贸易有限公司
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Problems solved by technology
[0004] The purpose of the present invention is to solve the problem that when the existing backup protection device is in use, the installation structure is relatively complicated, and it is very inconvenient for the maintenance personnel to overhaul. Its internal components are very time-consuming and labor-intensive. When the device is used outdoors, it is prone to water damage and other problems. A backup protection device that automatically recognizes lightning current and short-circuit current is proposed.
Method used
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[0036] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0037] see Figure 1-11 As shown, the backup protection device for automatically identifying lightning current and short-circuit current includes a device main body 1, an inspection door 2 is hinged on the outer surface of the front end of the device main body 1, and a connection hole 10 is opened on the inner surface of the inspection door 2, and the inside of the connection hole 10 Inserting the insulating rotary rod 11, maintenance personnel can use the rotary insulating rotary handle 111, and the insulating rotary handl...
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The invention discloses a backup protection device capable of automatically identifying lightning current and short-circuit current. The backup protection device comprises a device main body, wherein an access door is hinged to the outer surface of the front end of the device main body, a wiring board is welded to the outer surface of the upper end of the device main body, a heat dissipation opening is formed in the outer surface of one side of the device main body, a lifting ring is in threaded connection with the position, close to the upper portion, of the outer surface of one side of the device main body, a discharging gap structure, a belt gas discharging pipe and a direct current SCB are sequentially arranged in the device main body from top to bottom, and a rain shielding roof is arranged above the wiring board. In the using process of the backup protection device, overall installation and installation box disassembly of internal parts are very convenient, a maintainer can overhaul and maintain the device more conveniently, meanwhile, when the device is used outdoors, the situation that the device is damaged due to the fact that rainwater permeates into the device can be reduced, and the service life of the device is prolonged, and the trouble of frequently repairing the device by a maintainer is also saved.
Description
technical field [0001] The invention relates to a protection device, in particular to a backup protection device for automatically identifying lightning current and short-circuit current, and belongs to the technical field of backup protection device applications. Background technique [0002] Backup protection refers to the protection used to cut off the fault when the main protection or circuit breaker refuses to move. When a fault occurs in the circuit, the protection on the circuit will send a signal to disconnect the breaking element of the circuit in an instant, and the protection that acts immediately is the main protection. When the main protection does not operate due to various reasons, another protection will start and operate according to the requirements of each circuit during the delay time to jump off the faulty circuit. This protection is the backup protection, and the backup protection will be used in the backup protection process. device. [0003] The exi...
Claims
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IPC IPC(8): H05K5/02H05K7/20H02H3/08H02H7/00
CPCH05K5/0204H05K5/0247H05K5/023H05K5/0213H05K5/0217H05K7/20127H02H3/08H02H7/00H05K5/03
Inventor 宋守刚王洁
Owner 颐通台州贸易有限公司