CN105162025B - A circuit breaker air chamber and a double-isolated feeder cabinet with the circuit breaker air chamber - Google Patents

Abstract

The present invention relates to a kind of breaker gas chamber and double isolation feeder cabinets with the breaker gas chamber, direct-operated isolating switch is set to the right side of pole along the vertical direction in the box house of breaker gas chamber, the tri-station isolating switch includes conductor, the static contact being conductively connected with the bus of every plug socket, it moving contact and is fixedly connected with moving contact to realize that major loop is connected, the screw body of three kinds of functions of isolation and ground connection, the tri-station isolating switch and the bus tri-station isolating switch being set on bus play double buffer actions jointly, the projection of the pole to the right is located in disconnecting switch, it is arranged so disconnecting switch, efficiently utilize the height space of pole and bottom socket, and the space as to reserve installation disconnecting switch in box house short transverse in the prior art is not had to, to reduce The height of breaker gas chamber, and realize the possibility in line side installation disconnecting switch.

Description

A kind of breaker gas chamber and double isolation feeder cabinets with the breaker gas chamber

Technical field

The present invention relates to a kind of breaker gas chamber and double isolation feeder cabinets with the breaker gas chamber.

Background technique

With the continuous development of switching technique, miniaturization, intellectualized switchgear are increasingly by the favor of user.In recent years Come, it is each to switch manufactory also one after another using miniaturization, intelligent switch as developing direction.Under the guide of this developing direction, A kind of new switchgear, that is, gas insulating enclosed switch equipment comes out, and the core element of the switchgear is sealed in gas tank Interior, the insulation performance of equipment is guaranteed by insulating gas.So the requirement for gas chamber is mainly reflected in reliable for operation, air-tightness Well, leakage rate is low, box deformation amount is small, stability is good and installation and debugging facilitate.Chinese patent literature CN102447228B Patent of invention provide a kind of high-voltage great-current drying compressed air insulated metal closed switch equipment, including cabinet body shell and Gas tank, the gas tank, that is, breaker gas chamber, the gas tank are internally provided with tri-station isolating switch, pole, inlet wire inner cone Connection socket connects socket with outlet inner cone, and the tri-station isolating switch connect socket with pole, inlet wire inner cone and goes out Line inner cone connects socket arranged for interval up and down, and the height for resulting in gas tank is higher, is not applied for requiring limit to gas tank height The feeder cabinet of system.

Summary of the invention

It solves and in the prior art is connect with pole, inlet wire inner cone due to disconnecting switch the present invention provides one kind Socket connects the breaker gas chamber of the higher problem of box height caused by socket or more arranged for interval, while this hair with outlet inner cone Bright purpose, which also resides in, provides a kind of feeder cabinet with the breaker gas chamber.

The present invention adopts the following technical scheme: a kind of breaker gas chamber, including cabinet, it is set to the Direct Action Type of box house Disconnecting switch and one end are suspended in the pole arranged in left-right direction on cabinet left side wall, set inside the pole Arc-chutes are equipped with, the direct-operated isolating switch is arranged in the right of pole along the vertical direction, and the pole is to the right The projection of side is located on direct-operated isolating switch.

The cabinet top is provided with the mother device being conductively connected with the front end wire outlet seat of pole, the pole Rear end wire outlet seat and the conductor of disconnecting switch be conductively connected, be provided with an at least plug socket group, every row in the box baseplate Socket group includes at least one socket, and the socket on every row is conductively connected by bus, the right end of the bus with The static contact of disconnecting switch is conductively connected.

Electrified sensor is provided at least one socket in socket in every plug socket group.

The first insulator for being used to support disconnecting switch upper end, institute are provided on the box roof inner wall along the vertical direction State the second insulator for being provided with the static contact for being used to support disconnecting switch on the right side of cabinet on inner wall in left-right direction.

The bottom outside of the cabinet is provided with the drive rod extended in left-right direction and changes with what drive rod transmission cooperated To bevel gear, transmission is combined with the screw body being connected with disconnecting switch moving contact on the commutation bevel gear.

A kind of feeder cabinet and including breaker gas chamber and positioned at the ipsilateral circuit breaker operation mechanism of breaker gas chamber keep apart Operating mechanism is closed, the breaker gas chamber includes that cabinet, the direct-operated isolating switch for being set to box house and one end are suspended in The pole arranged in left-right direction on cabinet left side wall, the pole are internally provided with arc-chutes, the direct acting Formula disconnecting switch is arranged in the right of pole along the vertical direction, the projection of the pole to the right be located at Direct Action Type every It leaves and shuts.

The cabinet top is provided with the mother device being conductively connected with the front end wire outlet seat of pole, the pole Rear end wire outlet seat and the conductor of disconnecting switch be conductively connected, be provided with an at least plug socket group, every row in the box baseplate Socket group includes at least one socket, and the socket on every row is conductively connected by bus, the right end of the bus with The static contact of disconnecting switch is conductively connected.

Electrified sensor is provided at least one socket in socket in every plug socket group.

The first insulator for being used to support disconnecting switch upper end, institute are provided on the box roof inner wall along the vertical direction State the second insulator for being provided with the static contact for being used to support disconnecting switch on the right side of cabinet on inner wall in left-right direction.

The bottom outside of the cabinet is provided with the drive rod extended in left-right direction and changes with what drive rod transmission cooperated To bevel gear, transmission is combined with the screw body being connected with disconnecting switch moving contact on the commutation bevel gear.

Compared with prior art, the invention has the benefit that the box house in breaker gas chamber is isolated by Direct Action Type Switch is set to the right side of pole along the vertical direction, and the tri-station isolating switch includes being conductively connected with arc-chutes static side Conductor, be conductively connected with the bus for being conductively connected every plug socket static contact, moving contact and be fixedly connected and control with moving contact Braking contact moves up and down to realize that the screw body of three kinds of major loop conducting, isolation and ground connection functions, three station are kept apart It closes and is set to the bus tri-station isolating switch on bus and play double buffer actions, the throwing of the pole to the right jointly Shadow is located in disconnecting switch, is arranged so disconnecting switch, efficiently utilizes the height space of pole and bottom socket, and Without the space as to reserve installation disconnecting switch in box house short transverse in the prior art, to reduce The height of breaker gas chamber, and realize the possibility in line side installation disconnecting switch.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the breaker gas chamber in one embodiment of the double isolation feeder cabinets of one kind of the invention；

Fig. 2 is the shaft side figure of Fig. 1.

Specific embodiment

A kind of one embodiment of double isolation feeder cabinets is as depicted in figs. 1 and 2, including breaker gas chamber, the breaker Gas chamber includes cabinet 1, vacuum circuit breaker 24 and the tri-station isolating switch 23 for being set to box house, the vacuum circuit breaker 24 One end is set on the inner sidewall of cabinet front face including the circuit breaker operation mechanism 2 that is set on the outer wall of cabinet front face and respectively Suspension three poles 4, the circuit breaker operation mechanism 2 is set on the outer wall of cabinet front face by mounting plate 3, institute Stating each pole 4 includes front end wire outlet seat 5, rear end wire outlet seat 7 and the vacuum extinction being set to inside pole 4 Room, the static side of the vacuum interrupter are fixedly connected on rear wire outlet seat 7, and the moved end of vacuum interrupter is fixedly connected on preceding outlet On seat 5,1 top of cabinet is provided with the mother device 6 being conductively connected with front end wire outlet seat 5, and breaker gas chamber upper end is provided with bus Gas chamber, 6 outer conductive of mother device be connected with three station of bus of the control bus conduction state for being set to bus plenum interior every Pass is left, 23 collective effect of tri-station isolating switch of the bus tri-station isolating switch and the breaker plenum interior plays double The effect of isolation.Certainly in other embodiments, vacuum interrupter can also be replaced with sulfur hexafluoride breaker, the isolation of three stations Or not include earthing pole two station disconnecting switchs.

It is spaced apart that the right of three poles 4 is provided with the front-rear direction that vertically extends in cabinet 1 Three tri-station isolating switch 23, each tri-station isolating switch 23 include conductor 9, static contact 10, moving contact 12, connect The rear end wire outlet seat 7 of earth polar 14 and the screw body 13 being fixedly connected with moving contact 12, conductor 9 and pole 4 is conductively connected, Three row's inner cone socket groups are provided on 1 bottom plate of cabinet, every row's inner cone socket group includes spaced four inner cones of front-rear direction Four inner cone sockets of socket 17, every row are conductively connected by a bus 18, wherein in four inner cone sockets of every row Having one is the inner cone socket 19 for being provided with electrified sensor, exportable signal to external connecting detection device, detection device Maloperation, the stationary contact can be effectively prevented with the operating status of functional unit in real-time display breaker plenum interior First 10 are conductively connected with bus 18, are embedded with moving contact 12 inside static contact 10,12 bottom of moving contact is provided with screw rod machine Structure 13, the screw body 13 can drive moving contact 12 to pump to realize the connection, isolation and ground connection of main circuit Three functions.It is provided with the first insulator for being used to support disconnecting switch upper end along the vertical direction on the 1 top plate inner wall of cabinet 8, it is provided with the second insulator for being used to support the static contact 10 of disconnecting switch in left-right direction on the 1 right side inner wall of cabinet 11。

Cabinet 1 is welded by stainless steel plate, and the first insulator 8 and the second insulator 11 to play a supportive role is installed in It is set on 1 inner wall of cabinet on the reinforcing rib of corresponding position, the use of reinforcing rib can prevent the first, second insulator is straight Connect be fixed on cabinet 1 and caused by poor sealing the problem of, and fixed insulator is more convenient, certainly in other embodiments In directly the first insulator 8 and the second insulator 11 can also be directly anchored on cabinet 1, and in the outside of cabinet 1 and the One, the second insulator is corresponding goes out sealing plate is arranged.Sealing plate 20, sealing plate 20 are provided on the rear wall outer surface of cabinet 1 Upper design has bleeder port, and flange 22 is provided on sealing plate, and rupture pressure disc 21 is mounted on flange 22, when 1 air pressure inside liter of cabinet When height is more than certain value, 1 internal pressure of cabinet and excretion 1 internal gas of cabinet can be discharged by bleeder port and rupture pressure disc 21, The safety for ensuring operator and product improves the security protection performance of equipment.

It is additionally provided with isolator operating mechanism on the leading flank outer wall of cabinet 1, is provided with below the cabinet 1 along left and right Tooth is bored in the commutation that cooperation is engaged with the drive rod 16 of isolator operating mechanism transmission connection and with drive rod 16 that direction extends 15 are taken turns, transmission is combined with the screw body 13 being connected with disconnecting switch moving contact 12 on the commutation bevel gear 15, certainly at it Bevel gear and screw body can also be replaced with worm and gear in his embodiment.

At runtime, external cable is connected on inner cone socket 17 present apparatus, and external main bus-bar is connected on mother device 6, Bevel gear transmission 15 is connected respectively at drive rod 16 with the input terminal of screw body 13, and screw body 13 passes through drive rod 16 Turning to driving screw body 13 by bevel gear 15 drives moving contact 12 to move reciprocatingly along the axial line of static contact 10, It is final to realize three kinds of bus connection, isolation, ground connection functions.Operating mechanism passes through the insulated pull rod and sealing that are sealed in inside gas tank The breaking-closing operating of vacuum circuit breaker 24, the bus three with bus gas chamber are completed in the moved end connection of vacuum interrupter in pole 4 Station disconnecting switch operating mechanism realizes double isolation features jointly.

A kind of embodiment of breaker gas chamber and a kind of above-mentioned double breaker gas chambers being isolated in each embodiment of feeder cabinet Embodiment it is identical, details are not described herein again.

Claims (10)

1. A circuit breaker air chamber, comprising a box body, a direct-acting isolating switch arranged inside the box body, and a solid-sealing pole arranged in the left-right direction whose one end is suspended on the left side wall of the box body. An arc extinguishing chamber is arranged inside the pole, and it is characterized in that: the direct-acting isolation switch is arranged on the right side of the fixed-sealing pole along the up-down direction, and the projection to the right of the fixed-sealing pole is located in the direct-acting isolating switch The outer wall of the left side wall of the box body is provided with a circuit breaker operating mechanism. 2. A circuit breaker gas chamber according to claim 1, characterized in that: the upper part of the box body is provided with a female coupler that is electrically connected to the front end outlet socket of the solid-sealed pole, and the The rear outlet socket is conductively connected to the conductor of the isolating switch, at least one row of socket groups is arranged on the bottom plate of the box body, each row of socket groups includes at least one socket, and the sockets on each row are conductively connected through a busbar, so The right end of the bus bar is conductively connected with the static contact of the isolating switch. 3 . The circuit breaker air chamber according to claim 2 , wherein at least one of the sockets in each row of socket groups is provided with a live sensor. 4 . 4 . The circuit breaker gas chamber according to claim 1 , wherein the inner wall of the top plate of the box body is provided with a first insulator for supporting the upper end of the isolating switch along the upper and lower directions, and the inner wall of the right side of the box body is provided with a first insulator. A second insulator for supporting the static contact of the isolating switch is provided along the left-right direction. 5 . The circuit breaker air chamber according to claim 1 , wherein the bottom outer side of the box body is provided with a transmission rod extending in the left-right direction and a reversing bevel gear that is drivingly matched with the transmission rod. 5 . The upper transmission of the reversing bevel gear is matched with a screw mechanism which is fixedly connected with the moving contact of the isolation switch. 6. A feeder cabinet, comprising a circuit breaker air chamber, a circuit breaker operating mechanism and an isolating switch operating mechanism located on the same side of the circuit breaker air chamber, wherein the circuit breaker air chamber comprises a box body, a direct-acting type arranged inside the box body. The isolating switch and the solid-sealing pole arranged along the left-right direction, one end of which is suspended on the left side wall of the box body, an arc-extinguishing chamber is arranged inside the solid-sealing pole, and it is characterized in that: the direct-acting isolating switch is arranged along the upper and lower The direction is arranged on the right of the solid-sealed pole, and the rightward projection of the solid-sealed pole is located on the direct-acting isolation switch; the circuit breaker operating mechanism is arranged on the outer wall of the left side wall of the box. 7 . The feeder cabinet according to claim 6 , wherein the upper part of the box body is provided with a female coupler that is electrically connected to the front-end outlet socket of the fixed-sealed pole, and the rear end of the fixed-sealed pole is provided with a female connector. 8 . The outlet socket is conductively connected to the conductor of the isolating switch. At least one row of socket groups is arranged on the bottom plate of the box body. Each row of socket groups includes at least one socket. The right end of the switch is conductively connected to the static contact of the isolating switch. 8 . The feeder cabinet according to claim 7 , wherein at least one of the sockets in each row of socket groups is provided with a live sensor. 9 . 9 . The feeder cabinet according to claim 6 , wherein a first insulator for supporting the upper end of the isolating switch is arranged on the inner wall of the top plate of the box body along the up-down direction, and the inner wall on the right side of the box body is arranged along the left and right sides. 10 . The direction is provided with a second insulator for supporting the static contact of the isolating switch. 10 . The feeder cabinet according to claim 6 , wherein a transmission rod extending in the left-right direction and a reversing bevel gear driving and matching with the transmission rod are arranged on the outer side of the bottom of the box body, and the reversing bevel gear The upper transmission of the bevel gear is matched with a screw mechanism which is fixedly connected with the moving contact of the isolation switch.