CN201570430U - High voltage vacuum circuit breaker on outdoor post provided with isolating switch - Google Patents

Abstract

The utility model provides a high voltage vacuum circuit breaker on an outdoor post provided with an isolating switch, which is mainly and technically characterized in that the upper surfaces on two sides of one end of a base are connected with lower surfaces of two bottom feet of a high voltage vacuum circuit breaker on an outdoor post through bolts, a lock holder penetrates through an installation hole on the middle potion of a bottom foot on one side of the high voltage vacuum circuit breaker on the outdoor post and is connected with the base through a nut, inner walls on two sides of the middle portion of the base are respectively connected with two bearing supporting holders through bolts, and an inclined surface on the other end of the base is connected with the bottom surface of three supporting insulators of three phase through bolts. The circuit breaker solves the problems that the volume is big, the circuit breaker is not stable integrally, and the interlocking is not reliable, birds can built nests on an insulation brake when the brake is closed after the high voltage vacuum circuit breaker on the outdoor post is prove with the insolating switch.

Description

High-pressure vacuum breaker on the outdoor post of configuration isolation switch

Affiliated technical field:

The utility model relates to primary cut-out on a kind of outdoor post, high-pressure vacuum breaker on particularly a kind of outdoor post of configuration isolation switch.

Background technology:

Primary cut-out has three types in oil, sulphur hexafluoride and vacuum on the outdoor post of China, and high-voltage oil circuit breaker on the outdoor post is owing to there is oil, and the time between overhauls(TBO) is short, the oil spout phenomenon of hurting sb.'s feelings often occurs, and the danger of lie dormant again fire and blast is existing superseded substantially; High pressure sulfur hexafluoride breaker on the outdoor post is owing to there is gas, and contaminated environment, inconvenience are safeguarded, therefore, use few; High-pressure vacuum breaker on the outdoor post is now used in a large number owing to do not have oil, no gas.But because the clearance between open contacts of high-pressure vacuum breaker is little on the outdoor post, power department is worried the Insulation Problems behind the vacuum circuit-breaker separating brake, therefore, some power departments are used high-pressure vacuum breaker and isolating switch on the outdoor post, and also some power department requires the direct configuration isolation switch of high-pressure vacuum breaker on the outdoor post.According to the requirement of power department, high-pressure vacuum breaker has all disposed isolating switch on the domestic most outdoor post.Originally separately on the outdoor post that uses behind the high-pressure vacuum breaker configuration isolation switch, structure is obviously inharmonious, and what have is configured in top with isolating switch, and what have is configured in the middle part, and what also have is configured in the bottom.Be configured in the isolating switch at top and middle part, generally when closing position, isolate plug-in strip and keep flat.The isolation plug-in strip that keeps flat increases the volume of product, and bird is nest on plug-in strip easily.Be configured in the isolating switch on top, individual other will be isolated plug-in strip and be placed vertically, and when the isolating switch separating brake, though visible fracture is arranged, power supply and load side still have insulator to isolate.Being configured in the isolating switch of bottom, all is that the isolation plug-in strip is placed vertically, this structure, and the binding post distance to the ground of isolating switch lower end is low, and during installation, the base that needs that has is increased, and the product that needs that has is offset.Said structure, no matter any, the connected mode of high-pressure vacuum breaker all is to realize by the side plate of high-pressure vacuum breaker casing or underframe on the outdoor post on isolating switch and the outdoor post.These structures are when using operation, and poor stability on making, has increased the processing capacity of high-pressure vacuum breaker casing on the outdoor post or underframe.During high-pressure vacuum breaker configuration isolation switch, reliable mechanical interlocking be arranged on the outdoor post, prevent misoperation.But, cause the mechanical interlocking complex structure, poor reliability because the structure behind the high-pressure vacuum breaker configuration isolation switch is inharmonious on the existing outdoor post.

Summary of the invention:

The purpose of this utility model is the problem that exists in the above-mentioned technology, high-pressure vacuum breaker on a kind of outdoor post of configuration isolation switch is provided, solved on the outdoor post behind the high-pressure vacuum breaker configuration isolation switch big, whole unstable, the mechanical interlocking poor reliability of volume and when closing a floodgate bird easily in the problem of isolating nest on the plug-in strip.

The purpose of this utility model is achieved in that and comprises high-pressure vacuum breaker, lock, bearing spider and supporting insulator on base, the outdoor post, it is characterized in that: the lower surface of two footing of high-pressure vacuum breaker links to each other with bolt on an end both sides upper surface of base and the outdoor post, the installing hole that lock passes high-pressure vacuum breaker one side footing middle part on the outdoor post links to each other with nut with base, both sides, the middle part inwall of base links to each other with bolt with two bearing spiders respectively, and three supporting insulator bottom surfaces of the other end inclined-plane of base and three-phase link to each other with bolt.

The utility model has the advantages that: made full use of the useful space of high-pressure vacuum breaker on the outdoor post, made product with compact structure, volume is little.Utilize that the existing footing installing hole of high-pressure vacuum breaker is connected with base, lock on the outdoor post, make that product structure is simple, reliability is high, low cost of manufacture.Owing to be used for fixing product and parts above the base, as footing is installed, make product stability good below, be convenient to user installation.Tiltedly put the isolation plug-in strip, and make the plug-in strip steepness big, can avoid bird isolating nest on the plug-in strip.

Description of drawings:

Fig. 1 is the utility model shape assumption diagram

Fig. 2 is the vertical view of Fig. 1

Embodiment:

By Fig. 1-2 as can be known, the lower surface of (5) two footing of high-pressure vacuum breaker links to each other with bolt on one end both sides upper surface of base (14) and the outdoor post, be the end that high-pressure vacuum breaker on the outdoor post (5) is placed in base (14), and link to each other with base (14) with bolt by the installing hole of two footing.Both sides, base (14) middle part inwall links to each other with bolt with two bearing spiders (12) respectively, and two bearing spiders (12) link to each other with axle (11), and an end of axle (11) links to each other with fixing pin with operating grip (15) and interlocking connecting lever (10) respectively.One end of interlocking connecting lever (10) and connecting rod (9) links to each other with bearing pin, the other end of connecting rod (9) links to each other with bearing pin with an end of jam plate (6), the other end of jam plate (6) links to each other with bearing pin with the upper end of lock (8), and the installing hole that the lower end screw rod of lock (8) passes high-pressure vacuum breaker (5) one side footing middle part on the outdoor post links to each other with nut with base (14).The main connecting lever of three couples of axle (11) links to each other with bearing pin with the lower end of three insulated tension poles (17) of three-phase respectively, and the upper end of three insulated tension poles (17) links to each other with bearing pin with the middle part of three pairs of isolation plug-in strips (1) of three-phase respectively.Two pairs of connecting levers at axle (11) middle part link to each other with bearing pin with two power assistant spring devices (13) respectively, and the other end of power assistant spring device (13) links to each other with base (14).The bottom surface of three supporting insulators (16) of the other end inclined-plane of base (14) and three-phase links to each other with bolt, the top of three supporting insulators (16) links to each other with bolt with three binding posts (18) of three-phase respectively, and three fixed contacts (19) of three binding posts (18) and three-phase are one.Three screw rods of three-phase of high-pressure vacuum breaker (5) end of incoming cables link to each other with nut with three conduction bent plates (3) of three-phase respectively on the outdoor post, and three conduction bent plates (3) link to each other with bolt with three touch bases (2) of three-phase respectively.One end of three pairs of isolation plug-in strips (1) of three-phase links to each other with bearing pin with three touch bases (2) of three-phase respectively, and uses spring compression, and the other end is clamped three fixed contacts (19) of three-phase respectively, and clamps with spring.

The water conservancy diversion principle of high-pressure vacuum breaker on the outdoor post of configuration isolation switch: electric current is introduced from inlet wire binding post (18), the main conductive circuit of high-pressure vacuum breaker (5) on fixed contact (19), isolation plug-in strip (1), touch base (2), conduction bent plate (3) and outdoor post is by outlet binding post (4) output of high-pressure vacuum breaker (5) on the outdoor post.

The operation principle of high-pressure vacuum breaker on the outdoor post of configuration isolation switch: three isolation plug-in strips (1) of high-pressure vacuum breaker on the outdoor post (5) and three-phase are when being in gate-dividing state, spur the operating grip (15) of isolating switch clockwise, operating grip (15) moves downward by three insulated tension poles (17) that the main connecting lever of three couple of axle (11) drives three-phase, realizes the combined floodgate motion of three pairs of isolation plug-in strips of three-phase (1).When three pairs of isolation plug-in strips (1) of three-phase close a floodgate motion when more than half, two power assistant spring devices (13) release energy, and after three pairs of isolation plug-in strips (1) of three-phase being closed a floodgate fast put in place, and are maintained under the effect of spring force, realize the closing operation of isolating switch.When isolating switch closed a floodgate, jam plate (6) clockwise rotated an angle.Operating high-pressure vacuum breaker on the outdoor post (5) successively closes a floodgate, behind the combined floodgate, tapered end (7) side end of high-pressure vacuum breaker (5) from the outdoor post stretches out, the cylinder that stretches out blocks jam plate (6), jam plate (6) can not rotate, limited the operation of isolator operation handle (15) thus, high-pressure vacuum breaker (5) is when closing position on the promptly outdoor post, and isolating switch can not sub-switching operation.Operate high-pressure vacuum breaker on the outdoor post (5) separating brake, the cylinder that tapered end (7) stretches out retracts, the constraint release of jam plate (6), spur the operating grip (15) of isolating switch counterclockwise, operating grip (15) moves upward by three insulated tension poles (17) that the main connecting lever of three couple of axle (11) drives three-phase, realizes the separating brake motion of three pairs of isolation plug-in strips of three-phase (1).When three pairs of isolation plug-in strips (1) separating brake of three-phase moves when more than half, two power assistant spring devices (13) release energy, three pairs of isolation plug-in strips (1) quick acting switching-off of three-phase is put in place after, and under the effect of spring force, be maintained.Form obviously visible fracture between three pairs of isolation plug-in strips (1) of three-phase and three fixed contacts (19) of three-phase, realize the sub-switching operation of isolating switch.In the isolating switch separating brake, jam plate (6) rotates counterclockwise an angle, at this moment, in case after operating high-pressure vacuum breaker on the outdoor post (5) combined floodgate mistakenly, the cylinder that tapered end (7) stretches out blocks the other end of jam plate (6), jam plate can not rotate, and the operating grip of isolating switch (15) can not be operated, and promptly isolating switch can not close a floodgate.Realized high-pressure vacuum breaker on outdoor post (5) reliably when being in "on" position, the inoperable interlock of isolating switch.

Claims (1)

1. high-pressure vacuum breaker on the outdoor post of a configuration isolation switch, comprise base, high-pressure vacuum breaker on the outdoor post, lock, bearing spider and supporting insulator, it is characterized in that: the lower surface of two footing of high-pressure vacuum breaker links to each other with bolt on an end both sides upper surface of base and the outdoor post, the installing hole that lock passes high-pressure vacuum breaker one side footing middle part on the outdoor post links to each other with nut with base, both sides, the middle part inwall of base links to each other with bolt with two bearing spiders respectively, and three supporting insulator bottom surfaces of the other end inclined-plane of base and three-phase link to each other with bolt.

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