CN205789787U

CN205789787U - A kind of reclosing residual current action breaker

Info

Publication number: CN205789787U
Application number: CN201620492952.4U
Authority: CN
Inventors: 温小远
Original assignee: Guizhou Sharp New Science And Technology Co Ltd
Current assignee: Guizhou Sharp New Science And Technology Co Ltd
Priority date: 2016-05-27
Filing date: 2016-05-27
Publication date: 2016-12-07
Anticipated expiration: 2026-05-27

Abstract

nullThe utility model discloses a kind of reclosing residual current action breaker，Main by shell、Base、End of incoming cables、Leading-out terminal forms，The A phase of end of incoming cables and leading-out terminal、B phase、C phase connection terminal is separately positioned on base two ends，The A phase of leading-out terminal、B phase、The binding post of C phase connects conducting strip respectively，Each conducting strip wire harness is fixed and is connected with bindiny mechanism，Bindiny mechanism is connected with tripping，Tripping is provided with actuating mechanism and contact system，Tripping material is insulant，The A phase of end of incoming cables、B phase、The binding post of C phase is respectively adopted conductor wire and is connected with contact，Contact is the most corresponding with the end points of contact system，Each contact be arranged over arc quenching plate，The A phase of arc quenching plate and end of incoming cables、B phase、It is respectively equipped with insulating trip between the binding post of C phase，This utility model conducting strip attachment structure is firm，And good insulation preformance，There is longer service life.

Description

A kind of reclosing residual current action breaker

Technical field

This utility model belongs to protecting electrical power system electric elements technical field, particularly to a kind of reclosing residual current action breaker.

Background technology

Auto recloser is a kind of automaton that will automatically engage on demand because of the chopper after fault tripping, and Operation of Electric Systems experience have shown that, the most of fault of overhead transmission line is all " instantaneity ", and permanent fault is typically less than 10%.Therefore, after by relay protection action excision short trouble, electric arc is by automatic distinguishing; insulation at short circuit can recover automatically in most cases; therefore, automatically chopper is overlapped, not only increase the safety and reliability of power supply; decrease loss of outage; but also improve the transient state level of power system, increase the power transmission capacity of high-tension line, it is possible to correct the mistrip caused due to chopper or protective relaying device; so, overhead transmission line automatic reclosing to be used.

Using after automatic reclosing, power system also brings some adverse effect, during as coincided with permanent fault, impact by short circuit current again may be caused system oscillation by system；Make chopper working condition deteriorate simultaneously, this proposes higher requirement to stability and the insulating properties of chopper, and in existing product, the operation handle of circuit breaker external is connected with internal mechanism through a screw, after long-time use, insulant is aging easily makes manipulator's grip strip electricity, there is serious potential safety hazard, and the leading-out terminal conducting strip line of existing product is to use litzendraht wire flexible connection to be connected with contact system through a postwelding, this connection is little due to pad, pad fastness is poor, in use it is easily caused chopper temperature rise too high, burn out equipment.

Utility model content

For solving problems of the prior art, this utility model design provides a kind of reclosing residual current action breaker, and its inner conductive sheet attachment structure is firm, and good insulation preformance, has longer service life.

The technical solution of the utility model is as described below:

A kind of reclosing residual current action breaker, main by shell, base, end of incoming cables, leading-out terminal forms, the A phase of end of incoming cables and leading-out terminal, B phase, C phase connection terminal is separately positioned on base two ends, the A phase of leading-out terminal, B phase, the binding post of C phase connects conducting strip respectively, each conducting strip wire harness is fixed and is connected with bindiny mechanism, bindiny mechanism is connected with tripping, tripping is provided with actuating mechanism and contact system, the material of tripping is insulant, the A phase of end of incoming cables, B phase, the binding post of C phase is respectively adopted conductor wire and is connected with contact, contact is the most corresponding with the end points of contact system, each contact be arranged over arc quenching plate, the A phase of arc quenching plate and end of incoming cables, B phase, it is respectively equipped with insulating trip between the binding post of C phase.

Further, described conducting strip is copper current-conducting piece, the A phase of leading-out terminal, B phase, uses seam welding mode to be connected between the binding post of C phase and conducting strip.

In this utility model, it is insulant by the material design of tripping, make actuating mechanism completely set up on the insulating material completely with out electricity, the potential safety hazard avoiding existing circuit breaker actuating mechanism and manipulator's grip strip electricity and exist, additionally, use seam welding mode to be connected between the binding post of the A phase of leading-out terminal, B phase, C phase and conducting strip, conducting system is improved to one, avoid because of spot welding loosely, the reason such as rosin joint cause chopper temperature rise too high, burn out equipment.

Advantage of the present utility model and beneficial effect:

This utility model conducting strip attachment structure is firm, and good insulation preformance, has longer service life.

Accompanying drawing explanation

Fig. 1 is circuit breaker internal structural representation of the present utility model；

In figure: 1-conducting strip, 2-wire harness, 3-bindiny mechanism, 4-tripping, 5-actuating mechanism, 6-contact system, 7-arc quenching plate, 8-insulating trip, 9-contact.

Detailed description of the invention

Below in conjunction with accompanying drawing, this utility model is described in further detail, but below example should be only limitted to regard to this scope being interpreted as theme described in the utility model, in the case of without departing from the above-mentioned technological thought of this utility model, all make according to ordinary skill knowledge and customary means various amendments, replace and change, be included in the range of this utility model.

Embodiment one

As shown in Figure 1, a kind of reclosing residual current action breaker, main by shell, base, end of incoming cables, leading-out terminal forms, the A phase of end of incoming cables and leading-out terminal, B phase, C phase connection terminal is separately positioned on base two ends, the A phase of leading-out terminal, B phase, the binding post of C phase connects conducting strip 1 respectively, each conducting strip 1 is fixed with wire harness 2 and is connected with bindiny mechanism 3, bindiny mechanism 3 is connected with tripping 4, tripping 4 is provided with actuating mechanism 5 and contact system 6, the material of tripping 4 is insulant, the A phase of end of incoming cables, B phase, the binding post of C phase is respectively adopted conductor wire and is connected with contact 9, contact 9 is the most corresponding with the end points of contact system 6, each contact 9 be arranged over arc quenching plate 7, the A phase of arc quenching plate 7 and end of incoming cables, B phase, insulating trip 8 it is respectively equipped with between the binding post of C phase.

Further, described conducting strip 1 is copper current-conducting piece, the A phase of leading-out terminal, B phase, uses seam welding mode to be connected between the binding post of C phase and conducting strip 1.

Claims

null1. a reclosing residual current action breaker，Main by shell、Base、End of incoming cables、Leading-out terminal forms，The A phase of end of incoming cables and leading-out terminal、B phase、C phase connection terminal is separately positioned on base two ends，The A phase of leading-out terminal、B phase、The binding post of C phase connects conducting strip (1) respectively，Each conducting strip (1) is fixed with wire harness (2) and is connected with bindiny mechanism (3)，Bindiny mechanism (3) is connected with tripping (4)，Tripping (4) is provided with actuating mechanism (5) and contact system (6)，The material that it is characterized in that tripping (4) is insulant，The A phase of end of incoming cables、B phase、The binding post of C phase is respectively adopted conductor wire and is connected with contact (9)，Contact (9) is the most corresponding with the end points of contact system (6)，Each contact (9) be arranged over arc quenching plate (7)，The A phase of arc quenching plate (7) and end of incoming cables、B phase、Insulating trip (8) it is respectively equipped with between the binding post of C phase.
A kind of reclosing residual current action breaker the most according to claim 1, it is characterised in that described conducting strip (1) is copper current-conducting piece, the A phase of leading-out terminal, B phase, uses seam welding mode to be connected between the binding post of C phase and conducting strip (1).