CN205846550U - Stationary contact head cartridge under the disconnecting switch of a kind of vacuum switch cabinet - Google Patents

Abstract

Stationary contact head cartridge under the disconnecting switch of a kind of vacuum switch cabinet, relates to high pressure assembled electric equipment field.Including three the second Interposer contact seats, the inside of the second Interposer contact seat is equipped with the 4th spring touch finger；Three the second Interposer contact seats are respectively arranged on the second insulating base by one the 3rd insulation full skirt, and the top of the 3rd insulation full skirt is provided with the first insulating sheath.The line interface of power cable, the grafting port of spark gap and the grafting port of voltage transformer it is additionally provided with on second insulating base, the inside of the second insulating base is additionally provided with three groups of conducting rings, and its effect is to be joined to one another by the binding post of the second Interposer contact seat and power cable, spark gap and voltage transformer.Comprehensive function is incorporated and is integrated, there is the functions such as connection line system, electrification display, spark gap, voltage transformer.After intensive, volume being reduced, material is saved, and function increases.

Description

Stationary contact head cartridge under the disconnecting switch of a kind of vacuum switch cabinet

Technical field

This utility model relates to high pressure assembled electric equipment field, is specifically related to the disconnecting switch of a kind of vacuum switch cabinet Lower stationary contact head cartridge.

Background technology

Existing KYN28A-12 feeder switch cabinet, as shown in figure 16, each reference implication in Figure 16 is A to its structure Busbar compartment, B breaker compartment, C cable compartment, D instrument compartment, 1 shell, 1.1 pressure releasing plates, 1.2 control cable cover, 2 branch bars, 3 buses, 4 static contact head devices, 5 spring contacts, 6 earthing switch blades, 7 current transformers, 8 voltage transformers, 9 handling Formula dividing plate, 101 auxiliary switches, 102 movable curtain plates, 103 pull-out type handcart, 104 earthing switch blade operating mechanisms, 105 cables are close Envelope terminal, 106 base plates, 107 screw bodies, 108 earthing main bus, 109 loading and unloading type horizontal baffles, 110 secondary plugs.

The switch cubicle of this structure, its major defect shows: volume is big, structure is complicated, it is necessary to open Qianmen by open circuit Device pull-out just can isolate circuit, it is necessary to disassembles into single cabinet one by one and can change the wherein aspect such as a switch cubicle. Meanwhile, it is excessive that front extraction causes cabinet anteroposterior dimension, and chopper left-right situs causes cabinet the front is over-extended, and bus The galvanic circle being changed to be caused in tandem by left-right situs is long, and anteroposterior dimension is long, increases loop resistance and waste Raw material.

Switch touching headstock in existing switch cubicle, major defect shows: contact off-center, and point cantact is not Good, loop resistance is unstable, causes temperature rise unstable, it is difficult to bear dynamic and thermal stability electric current.Meanwhile, function singleness, structure is complicated.

Vacuum circuit breaker isolating switch combined electrical apparatus in existing switch cubicle, major defect shows: chopper and isolation Moving contact one, by push and pull out carry out insulating contact deciliter, the problem which results in automation mechanized operation.

Utility model content

The purpose of this utility model is to provide stationary contact head cartridge under the disconnecting switch of a kind of vacuum switch cabinet, above-mentioned for realizing Purpose, this utility model have employed techniques below scheme:

Stationary contact head cartridge under the disconnecting switch of a kind of vacuum switch cabinet, including three the second Interposer contact seats, touches in the middle of second The inside of headstock is equipped with the 4th spring touch finger；Three the second Interposer contact seats are respectively arranged on second by one the 3rd insulation full skirt On insulating base, the top of the 3rd insulation full skirt is provided with the first insulating sheath.

The line interface of power cable, the grafting port of spark gap and mutual induction of voltage it is additionally provided with on second insulating base The grafting port of device, the inside of the second insulating base is additionally provided with three groups of conducting rings, and its effect is by the second Interposer contact seat and electricity The binding post of power cable, spark gap and voltage transformer is joined to one another.

The bottom of the second insulating base is provided with stress set, power cable, spark gap or voltage transformer seif-citing rate set bottom Entrance access, with stress overlap in binding post affixed after, by fastening standard component limit mounting, fastening standard component outer wall set There is insulator cap.

Compared with existing KYN28A-12 feeder switch cabinet, ac high-voltage armouring drawer type intellectuality vacuum switch cabinet Advantage shows:

1, volume is little, will realize the miniaturization of air switch cabinet.The size of former KYN28-12 feeder switch cabinet is 800 × 1450 × 2300, new ac high-voltage armouring drawer type intellectuality vacuum switch cabinet only has 450 × 900 × 1650, is original volume 1/3-1/4.

2, former KYN28A-12 feeder switch cabinet be switched on Qianmen by chopper pull out, just can isolate circuit.New exchange High pressure armouring drawer type intellectuality vacuum switch cabinet is then not required to open the door just to isolate circuit.

3, former KYN28A-12 feeder switch cabinet must be disassembled into single cabinet one by one and can change wherein one side switch Cabinet, new ac high-voltage armouring drawer type intellectuality vacuum switch cabinet then need not.

Compared with the fixed contact pedestal of existing disconnecting switch, the advantage of disconnecting switch upper static contact seat shows:

1, original structure is single contact base function, connects branch bar.New construction then simplifies structure, is directly connected to main mother Line, saves branch bus.

2, former contact base structure is not easy centring, contact off-center, and point cantact is bad, and loop resistance is unstable Fixed, cause temperature rise unstable, it is difficult to bear dynamic and thermal stability electric current.New construction uses spring touch finger instead, and contact point is uniform, bears dynamic heat Stabling current ability strengthens.

3, original structure is to push and pull out detection and isolation switch and the divide-shut brake position of earthed switch by circuit breaker cart, newly Structure disconnecting switch, earthed switch divide-shut brake process can directly be observed, and be had obvious fracture and observation window, it is simple to identify every Leave the divide-shut brake position closing earthed switch.

Compared with existing combined electrical apparatus, the advantage of vacuum circuit breaker isolating switch combined electrical apparatus shows:

1, original structure be chopper and isolation moving contact one, by push and pull out carry out insulating contact deciliter.New knot Structure is that thread bush motor rotational band is moved chain and made thread bush rotate, and drives moving contact motion.Solve disconnecting switch automatization Operational issue.

2, original structure isolation switch contact is to move in one direction, and new construction isolation switch contact is in the opposite direction Motion.

3, the part that is conductively connected of original structure activity uses the conductor structure that is flexible coupling, and new construction uses spring touch finger structure, Structure is simpler, and volume is smaller and more exquisite.

Compared with the fixed contact pedestal of existing disconnecting switch, under disconnecting switch, the advantage of fixed contact pedestal shows:

1, under original structure, fixed contact pedestal is independent function, is individually connected with branch bar, newly ties in addition to static contact function Structure incorporates comprehensive function and is integrated, and has the functions such as connection line system, electrification display, spark gap, voltage transformer.

2, new construction makes volume reduce after intensive, and material is saved, and function increases.

Accompanying drawing explanation

Fig. 1 is the front view of ac high-voltage armouring drawer type intellectuality vacuum switch cabinet.

Fig. 2 is the H direction view in Fig. 1.

Fig. 3 is the I direction view in Fig. 1.

Fig. 4 is the structural representation of disconnecting switch upper static contact box.

Fig. 5 is that the A-A in Fig. 4 is to sectional view.

Fig. 6 is the structural representation of stationary contact head cartridge under disconnecting switch.

Fig. 7 is that the C-C in Fig. 6 is to sectional view.

Fig. 8 is that the D-D in Fig. 6 is to sectional view.

Fig. 9 is the E direction view in Fig. 6.

Figure 10 is the F direction view in Fig. 6.

Figure 11 is the structural representation of vacuum circuit breaker isolating switch combined electrical apparatus.

Figure 12 is the J direction view in Figure 11.

Figure 13 is that the B-B in Figure 11 is to sectional view.

Figure 14 is static contact under disconnecting switch upper static contact box, vacuum circuit breaker isolating switch combined electrical apparatus and disconnecting switch Structural representation when box three matches.

Figure 15 is that the G-G in Figure 14 is to sectional view.

Figure 16 is existing KYN28A-12 feeder switch cabinet basic structure profile.

The implication of the reference in Fig. 1-15 is:

10-cabinet, 11-upper spacer, 12-lower clapboard, 13-slideway, 14-hole slot.

20-disconnecting switch upper static contact box, 21-the first insulating base, 22-the first Interposer contact seat, 23-screw, 24- One spring touch finger, 25-first insulate full skirt, 27-the first insulative tiles, the ring-type full skirt of 28-.

30-vacuum circuit breaker isolating switch combined electrical apparatus.

The upper moving contact of 301-, 302-the 3rd Interposer contact seat, 303-the second insulative tiles, 304-the 3rd spring touch finger, 305-external thread sleeve, 306-the second insulating sheath, 308-external thread sleeve, 309-sprocket wheel, 311-lower moving contact bar, 312-second is horizontal To conducting rod, 313-lower moving contact, 315-insulated tension pole, 316-second insulate full skirt, and 317-the second vertical electric conduction bar, 318-is true Empty arc-chutes, 319-the second spring touch finger, 320-the first vertical electric conduction bar, 321-the first transverse conductance bar, the upper moving contact of 322- Bar.

Stationary contact head cartridge under 40-disconnecting switch.

401-the second insulating base, 402-the first insulating sheath, 403-the 3rd insulate full skirt, 405-the second Interposer contact Seat, 406-the 4th spring touch finger, 407-insulator cap, 408-fastens standard component, 409-conducting ring, 410-binding post, and 411-should Power set, the line interface of 412-power cable, the grafting port of 413-voltage transformer, the grafting port of 414-spark gap.

Operating mechanism 50.

Detailed description of the invention

Below in conjunction with the accompanying drawings optimal way of the present utility model is described in further detail.

A kind of ac high-voltage armouring drawer type intellectuality vacuum switch cabinet, is substantially made up of six parts, respectively: vacuum is broken Stationary contact head cartridge and turnover under road device isolating switch combined electrical apparatus module, open-type upper static contact box and bus base module, open-type Line generalization functional module, bareing removable isolated bus module, high speed grounding switch module and Sheathed metal closed box. The improvement of high-tension switch cabinet is mainly reflected in vacuum circuit breaker isolating switch combined electrical apparatus module, open-type by this utility model Stationary contact head cartridge and line comprehensive function module under stationary contact head cartridge and bus base module, open-type, by each functional module Structure carries out appropriate design, solves front in air insulation movable switch cubicle for many years and extracts the cabinet anteroposterior dimension caused out Excessive, that chopper left-right situs causes cabinet the front is over-extended, and bus is changed to be caused in tandem by left-right situs Galvanic circle long, anteroposterior dimension is long, increases loop resistance and the waste problem such as raw material.

Referring to Fig. 1-3, the cabinet 10 inside upper spacer 11 of switch cubicle and lower clapboard 12 are separated to form three layer function districts Territory, is once more divided into two lower rooms with metal partion (metp) in top area, a inside equipped with controlling equipment, referred to as control room, Another is referred to as bus-bar room equipped with bus.Zone line, equipped with vacuum circuit breaker isolating switch combined electrical apparatus, becomes switch gear room, under Layer region is equipped with cable incoming-outgoing wire system, referred to as cable vault.

The top area of cabinet be provided with install controller automatic controller room, after automatic controller room cell on every Equipped with disconnecting switch upper static contact box 20 on plate 11.The interbus being connected with disconnecting switch upper static contact box 20 is to the side of cabinet Face vertical direction extends, and draws from hole slot 14 position of cabinet side, be connected in adjacent cabinet thus with another switch cubicle Form parallel relationship, during cabinet in parallel, disassembling operations can be carried out.

The interlayer region of cabinet is provided with vacuum circuit breaker isolating switch combined electrical apparatus 30, mainly by vacuum switch, isolation Switch and operating mechanism 50 are constituted.Vacuum circuit breaker isolating switch combined electrical apparatus 30 with drawer car form by being arranged on cabinet The slideway 13 of internal wall easily pulls out from the front of switch cubicle or advances inwards.Operating mechanism 50 controls disconnecting switch Upper and lower movable contact rod inserts it in upper and lower stationary contact head cartridge, it is achieved the closing operation of disconnecting switch；Otherwise then realize keeping apart The sub-switching operation closed, vacuum circuit breaker isolating switch combined electrical apparatus 30 and disconnecting switch upper static contact box, the isolation of gate-dividing state Matching relationship between the lower stationary contact head cartridge of switch refers to shown in Figure 14 and 15.

The lower region of cabinet, as a multi-functional cable vault, is provided with stationary contact head cartridge 40 and line under disconnecting switch Comprehensive function module (not shown), under disconnecting switch, stationary contact head cartridge 40 is arranged on lower clapboard 12, and its underpart is provided with electric power The line interface of cable and spark gap, the grafting port of voltage transformer.One piece of longitudinal direction can also be installed additional in cable vault Dividing plate, installs voltage transformer or uninterruption power source by the cell being separated out, for control system as controlling power supply.

Figure 4 and 5 show the structural representation of disconnecting switch upper static contact box 20, and itself is made up of insulant , internal equipped with three the first Interposer contact seats 22, equipped with the first spring touch finger in the interior grooves of the first Interposer contact seat 22 24, before cabinet is backward, press the order arrangement at a certain distance of A, B, C phase sequence.The top of the first Interposer contact seat 22 is in cylinder Shape, surface is provided with the screw 23 for installing interbus.

Three the first Interposer contact seats 22 are respectively arranged on the first insulating base 21 by one first insulation full skirt 25, the One insulation full skirt 25 top be provided with the first insulative tiles 27, the first insulative tiles 27 has the opening being arranged symmetrically with, for The interbus of the first perpendicular layout of Interposer contact seat 22 is walked.

First insulation full skirt 25 inner hollow, and the outside bottom it be provided with multiple increase insulation creep distance ring-type full skirt 28。

When the upper movable contact rod of disconnecting switch penetrates bottom the first insulation full skirt 25, and offset with the first spring touch finger 24 When connecing, disconnecting switch upper static contact box 20 and vacuum circuit breaker isolating switch combined electrical apparatus 30 realize path.

Fig. 6-10 shows the structural representation of stationary contact head cartridge 40 under disconnecting switch, and itself is made up of insulant , internal equipped with three the second Interposer contact seats 405, the inside of the second Interposer contact seat 405 is equipped with the 4th spring touch finger 406. Three the second Interposer contact seats 405 are respectively arranged on the second insulating base 401 by one the 3rd insulation full skirt 403, and the 3rd is exhausted The top of edge full skirt 403 is provided with the first insulating sheath 402.

When disconnecting switch lower moving contact bar from the 3rd insulation full skirt 403 top penetrate, and with the 4th spring touch finger 406 phase During abutting, under disconnecting switch, stationary contact head cartridge 40 and vacuum circuit breaker isolating switch combined electrical apparatus 30 realize path.

Figure 11-13 shows the structural representation of vacuum circuit breaker isolating switch combined electrical apparatus 30, and it is solid by vacuum switch Sealed pole, disconnecting switch and operating mechanism composition, operating mechanism control respectively vacuum switch and disconnecting switch point, close behaviour Make.The overall U-shaped of vacuum switch pole, top is the first transverse conductance bar 321, and middle part is the first vertical electric conduction bar 320 and the second vertical electric conduction bar 317, bottom is the second transverse conductance bar 312, and the first vertical electric conduction bar 320 and second is vertically led The binding end of electric pole 317 is in vacuum interrupter 318.

The bottom of the second vertical electric conduction bar 317 is placed in the second spring touch finger 319, and its bottom is in the second insulation full skirt In 316, the insulated tension pole 315 connecting the second vertical electric conduction bar 317 is controlled by operating mechanism, it is achieved the first vertical electric conduction bar 320 and second vertical electric conduction bar 317 separation and combination.

Disconnecting switch is made up of the upper movable contact rod 322 being vertically arranged and lower moving contact bar 311, upper movable contact rod 322 Top is provided with moving contact 301, and the bottom of lower moving contact bar 311 is provided with lower moving contact 313, upper movable contact rod 322 and lower moving and touches Head rod 311 is respectively by the 3rd spring touch finger 304 respectively with first transverse conductance bar the 321, second transverse conductance bar 312 even Connect.

The outside of the 3rd spring touch finger 304 is provided with the 3rd Interposer contact seat 302, and the outside of the 3rd Interposer contact seat 302 sets There is the second insulating sheath 306 and the second insulative tiles 303, while ensureing insulation, promote insulation creep distance further.

The bottom of upper movable contact rod 322 and the top of lower moving contact bar 311 are equipped with tool in the middle of external thread sleeve 305, Upper movable contact rod 322 and lower moving contact bar 311 are coated with by the external thread sleeve 308 having sprocket wheel 309, and external thread sleeve 308 stretches into second Insulating sheath 306 is internal.

3rd Interposer contact seat 302 is provided with the projection forbidding that lower moving contact 313 (upper moving contact 301) rotates, and is inserted into In the groove of moving contact 313 (upper moving contact 301), make lower moving contact 313 (upper moving contact 301) to rotate, be merely able to according to The direction of rotation of thread bush moves up and down.

Upper movable contact rod 322 stretches upwards when disconnecting switch is closed a floodgate, retracted downward during separating brake；Lower moving contact bar 311 closes Stretch downwards during lock, upwards shrink during separating brake.When disconnecting switch needs Guan Bi, operating mechanism realizes sprocket wheel 309 and rotates, sprocket wheel 309 drive external thread sleeve 308 to rotate, and then realize upper movable contact rod 322 movable contact rod 311 up and down and are travel downwardly.

For upper disconnecting switch, upper moving contact 301 is i.e. inserted in the middle of the first of disconnecting switch upper static contact box 20 In contact base 22, it is achieved upper disconnecting switch closing operation, connect circuit.Otherwise, when disconnecting switch needs disjunction, upper moving contact Bar 322 retracted downward, makes moving contact 301 depart from the first Interposer contact seat 22 of disconnecting switch upper static contact box 20, it is achieved on The sub-switching operation of disconnecting switch, disconnecting circuit.

For lower disconnecting switch, lower moving contact 313 is i.e. inserted in the middle of second of stationary contact head cartridge 40 under disconnecting switch In contact base 405, it is achieved lower disconnecting switch closing operation, connect circuit.Otherwise, when disconnecting switch needs disjunction, lower dynamic tactile Head rod 311 upwards shrinks, and makes lower moving contact 313 depart from the second Interposer contact seat 405 of stationary contact head cartridge 40 under isolation disconnecting switch, Realize the sub-switching operation of lower disconnecting switch, disconnecting circuit.Now, two moving contacts of disconnecting switch are electric to combination by income completely The inside of device.

Seeing also Fig. 6-10, the second insulating base 401, as a kind of many merits mould module, is additionally provided with power cable above Line interface 412, the grafting port 414 of spark gap and the grafting port 413 of voltage transformer.Entering with power cable As a example by outlet interface 412, stress set 411 is installed in the bottom of the second insulating base 401, and power cable seif-citing rate overlapped for 411 ends End entrance access, with stress set 411 in binding post 410 affixed after, by fastening standard component 408 limit mounting, fastening mark The outer wall of quasi-part 408 is provided with insulator cap 407.

It addition, the inside of the second insulating base 401 is additionally provided with three groups of conducting rings 409, its effect is by the second Interposer contact The binding post 410 of seat 405 and power cable, spark gap and voltage transformer is joined to one another.

It should be noted that under above-mentioned disconnecting switch upper static contact box and disconnecting switch, stationary contact head cartridge can be made as independent shape State, both may be used in single-phase switch, it is also possible to as having in the heterogeneous construction of switch adjusting phase spacing function.

Ac high-voltage armouring drawer type intellectuality vacuum switch cabinet has carried out appropriate design in the effective space of switch cubicle Arranging, solving front in air insulation movable switch cubicle for many years, to extract the cabinet anteroposterior dimension caused out excessive, chopper The cabinet the front is over-extended that left-right situs causes, and bus is changed to the galvanic circle mistake that caused in tandem by left-right situs Long, anteroposterior dimension is long, increases the problem such as loop resistance and waste raw material.Air insulation movable switch cubicle volume is made to reach At least 1/3-1/4 of traditional switch cabinet.Meanwhile, switch cubicle designs fully according to air insulation theory, its air gap and insulation Creep distance complies fully with air insulation requirement.

The beneficial effect of ac high-voltage armouring drawer type intellectuality vacuum switch cabinet mainly shows as follows:

1, compact conformation, modular designs, current class and electric pressure cover wide.

2, air-insulated design concept is respected completely.

3, chopper can extract replacing and maintenance easily out.

4, when one group of switch cubicle needs maintenance and changes, arbitrarily one side can individually be hung out wherein.

5, automatic assembly line can be realized produce.

6, without exposed conductor, run safer.

7, chopper need not be extracted out, disconnecting switch can be completed and earthed switch remotely operates, allow distribution automation become Reality.

8, environmental suitability is strong, installs seal bootr additional and can improve the height above sea level of place of operation.

9, produce, use and overall process environmental protection out of service.

Above embodiment is only to be described preferred implementation of the present utility model, not to this utility model Scope be defined, without departing from this utility model design spirit on the premise of, those of ordinary skill in the art are to this practicality Various deformation that novel technical scheme is made and improvement, all should fall into the protection domain that this utility model claims determine In.

Claims (3)

1. stationary contact head cartridge under the disconnecting switch of a vacuum switch cabinet, it is characterised in that: include three the second Interposer contact seats (405), the inside of the second Interposer contact seat (405) is equipped with the 4th spring touch finger (406)；Three the second Interposer contact seats (405) Respectively it is arranged on the second insulating base (401) by one the 3rd insulation full skirt (403), the top of the 3rd insulation full skirt (403) It is provided with the first insulating sheath (402).

2. stationary contact head cartridge under the disconnecting switch of vacuum switch cabinet as claimed in claim 1, it is characterised in that: the second insulating base (401) the line interface (412) of power cable, the grafting port (414) of spark gap and voltage transformer it are additionally provided with on Grafting port (413), the inside of the second insulating base (401) is additionally provided with three groups of conducting rings (409), and its effect is middle by second The binding post (410) of contact base (405) and power cable, spark gap and voltage transformer is joined to one another.

3. stationary contact head cartridge under the disconnecting switch of vacuum switch cabinet as claimed in claim 1, it is characterised in that: the second insulating base (401) bottom is provided with stress set (411), and power cable, spark gap or voltage transformer seif-citing rate set (411) bottom entrance connect Enter, affixed with the binding post (410) in stress set (411) after, by fastening standard component (408) limit mounting, fasten standard The outer wall of part (408) is provided with insulator cap (407).