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Watchdog division load switch

A load switch and watchdog technology, applied in electric switches, high-voltage/high-current switches, high-voltage air circuit breakers, etc., can solve the problems of high failure rate of 10kV feeder overhead lines, high failure rate of 10kV feeder lines, and poor reliability. Achieve the effect of simple structure, good insulation performance and stable operation

Inactive Publication Date: 2014-09-10
LIUZHOU HAIGE ELECTRICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The 10kV feeder overhead line has a high failure rate and poor reliability, and the 10kV feeder has a high failure rate and poor reliability

Method used

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Examples

Experimental program
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Embodiment 1

[0067] Such as Figure 1-4 As shown, a watchdog boundary load switch is mainly composed of a circuit breaker body 17, a fault detection controller 19 and an external voltage transformer 18 electrically connected through an aviation socket 16 and an outdoor sealed control cable; The socket 16 is fixedly installed at the bottom of the circuit breaker body 17; wherein, the circuit breaker body 17 includes a housing 1, an upper cover 2, and an incoming line sleeve 11 and an outgoing line sleeve respectively installed on both side walls of the housing 1 Tube 6, and the insulation box 9 installed inside the shell 1, the vacuum interrupter 8 and the insulation operating mechanism; the vacuum interrupter 8 is installed in the insulation box 9; the incoming conductive rod passes through the incoming sleeve 11 Enter the housing 1 and connect with one end of the vacuum interrupter 8, and the other end of the vacuum interrupter 8 is connected with the outgoing conductor rod that enters th...

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Abstract

The invention discloses a watchdog division load switch. The watchdog division load switch is mainly composed of a breaker body, a fault detection controller and an external voltage transformer, wherein the breaker body, the fault detection controller and the external voltage transformer are electrically connected through an aviation socket and an outdoor sealing control cable. The aviation socket is fixedly installed at the bottom of the breaker body, and the breaker body comprises a casing, an upper cover, an inlet wire sleeve, an outlet wire sleeve, an insulating box installed in the casing, a vacuum arc-extinguishing chamber and an insulating operating mechanism. The insulating operating mechanism comprises an insulating pull rod, an operating spindle and a spring operating mechanism. Current transformers are respectively installed on two sides of an inlet wire conductive rod and an outlet wire conductive rod in the casing. The watchdog division load switch is simple in structure and reasonable in design, runs stably and is safe, reliable and suitable for division of a 10 kV overhead distributing line of a 10 kV system in neutral non-grounding, arc suppression coil grounding or low-resistance grounding and a user.

Description

technical field [0001] The invention belongs to application equipment for power transmission lines, and relates to a vacuum circuit breaker, in particular to a watchdog pole-mounted decomposition switch circuit breaker. Background technique [0002] With the rapid development of the power grid, the reliability requirements for safe power supply are getting higher and higher. Aiming at the weak links in the operation of the power grid, the power production department has adopted effective control measures to reduce accidental power outages and reduce the scope of power outages. The safe operation of 10kV feeder overhead lines is directly affected by the surrounding environment and climate conditions due to the open-air erection, and there are problems such as high accident rate, difficulty in finding accidents, and poor safety and reliability. Some users in remote mountainous areas with long overhead lines are often affected by bad weather and cannot use electricity normally....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H33/66
Inventor 叶金叶光岩王家祥
Owner LIUZHOU HAIGE ELECTRICAL
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