Intelligent miniature switchgear

A technology of small switches and equipment, which is applied in the direction of switchgear, pull-out switchgear, switchgear components, etc., and can solve the problem of large contact arm current and temperature monitoring, safety hazards of the insulation board of the grounding switch, explosion-proof and dehumidification of the switchgear In order to achieve excellent measurement accuracy, avoid air-tight interference, and simple structure

Pending Publication Date: 2019-09-20
四川电器集团股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] The purpose of the present invention is to provide an intelligent small switchgear to solve the problem of poor explosion-proof and dehumidification effect of the switchgear in the prior art, potential safety hazards in the insulating plate of the grounding switch, and the vacuum degree monitoring and triggering of the vacuum interrupter. It is difficult to monitor the current and temperature of the arm, so as to improve the effect of explosion protection and dehumidification, so that the equipment can be miniaturized, and the online monitoring of the vacuum degree of the vacuum interrupter is simple and accurate, and the contact arm of the circuit breaker can be obtained stably. Real-time monitoring data for the purpose of linkage processing of temperature and current information

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0082] An intelligent small switchgear, such as Figure 16 , figure 1 As shown, it includes a low-voltage room 20, a handcart room 21, a busbar room 22, and a cable room 23. The busbar room 22 is provided with an upper contact box 53, and the handcart room 21 is provided with a circuit breaker handcart 31, a suction energy device 26, the cable chamber 23 is provided with an integrated transformer contact box 25, a grounding switch 27; The connected lower contact arm 18, the upper contact arm 15 is used to connect with the upper contact box 53, the lower contact arm 18 is used to connect with the integrated transformer contact box 25, and the upper outlet seat 14 is connected to the lower The vacuum interrupter 2 is connected between the outlet seats 17: the circuit breaker handcart 31 also includes a monitoring system and a contact arm measuring ring device 11:

[0083] The monitoring system such as figure 2 As shown, it includes a vacuum balance cavity 302 and an optical ...

Embodiment 2

[0092] like image 3 As shown, the difference between this embodiment and Embodiment 1 is: the side wall of the vacuum balance chamber 302 has a first groove 5, and the first groove 5 and the vacuum balance chamber 302 are separated by a transparent member 6 , the light source 7 is arranged in the first groove 5 . The transparent member 6 is vacuum glass.

[0093] Preferably, the balance metal film 301 is an aluminum foil coated with white paint. The white paint comprises the following components in parts by weight: 45-50 parts of alkyd resin, 4-6 parts of dispersant, 0.2-0.5 part of defoamer, 10-15 parts of zinc sulfide, 10-15 parts of barium sulfate, 25-30 parts of titanium dioxide, 30-40 parts of solvent.

Embodiment 3

[0095] like Figure 7 and Figure 8The shown contact arm measurement ring device for vacuum circuit breaker, on the basis of Embodiment 1, the induction electric ring 111 and the current detection ring 114 are coaxial, and both are sleeved on the upper contact arm 15 and the lower contact arm 18 Outside; the central control system 112 is connected to the top of the induction electric ring 111 and the current detection ring 114, the temperature sensor 113 is arranged on the lower surface of the central control system 112, and the temperature sensor 113 is connected to the upper contact arm 15 and the lower contact arm 18 contacts. The bottom end of the induction electric ring 111 or the current detection ring 114 is fixed to a supporting plate 115 , and the upper surface of the supporting plate 115 is provided with a second groove 116 matching the bottom of the upper contact arm 15 and the lower contact arm 18 . The opposite sides of the supporting plate 115 are hinged to the...

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Abstract

The invention discloses an intelligent miniature switchgear, which comprises a monitoring system, a contact arm measurement ring device, an energy-absorbing device, an insulation plate assembly and a dehumidification system, and is used for solving the problems that a switchgear cabinet is poor in explosion-proof and dehumidification effect, an insulation board of a grounding switch has a safety hazard and it is difficult to monitor vacuum degree of a vacuum arc-extinguishing chamber and the current and temperature of a contact arm in the prior art, thereby realizing purposes of improving explosion-proof and dehumidification effect, making the equipment small, carrying out online monitoring of the vacuum degree of the vacuum arc-extinguishing chamber easily and accurately, obtaining real-time monitoring data of the circuit breaker contact arm stably and facilitating linkage processing of the temperature and current information.

Description

technical field [0001] The invention relates to the field of vacuum circuit breakers, in particular to an intelligent small switchgear. Background technique [0002] The switchgear cabinet is a kind of electrical equipment. The external line of the switch cabinet first enters the main control switch in the cabinet, and then enters the sub-control switch, and each branch is set according to its needs. Such as instruments, automatic controls, motor magnetic switches, various AC contactors, etc., some also have high-voltage room and low-voltage room switch cabinets, high-voltage busbars, such as power plants, etc. load shedding. The main function of switchgear is to switch, control and protect electrical equipment during the process of power generation, transmission, distribution and power conversion in the power system. The components in the switch cabinet are mainly composed of circuit breakers, disconnectors, load switches, operating mechanisms, transformers and various pr...

Claims

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Application Information

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IPC IPC(8): H02B11/10H02B11/167H02B11/28H02B1/28
CPCH02B11/10H02B11/167H02B11/28H02B1/28
Inventor 唐良雄杨勇王丽杰罗卫东代安东
Owner 四川电器集团股份有限公司
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