CN1765039B

CN1765039B - Switching device

Info

Publication number: CN1765039B
Application number: CN03826359.9A
Authority: CN
Inventors: 三原优; 松川明史; 小鹤进
Original assignee: Mitsubishi Electric Corp
Current assignee: Mitsubishi Electric Corp
Priority date: 2003-05-30
Filing date: 2003-05-30
Publication date: 2012-09-12
Anticipated expiration: 2023-05-30
Also published as: CN1765039A; TWI222255B; JPWO2004107520A1; TW200427169A; WO2004107520A1

Abstract

In order to obtain a switchgear which can be easily assembled by a small number of operators in a short time, is inexpensive, and has a high rigidity of a cabinet, the switchgear includes a plurality of electrical devices constituting a main circuit connected between a main bus and a cable for connecting to an external circuit, and a cabinet on which the electrical devices are placed, and the cabinet has an outer surface panel for dividing the outer shape of the cabinet; and a partition wall dividing the inside of the cabinet into compartments in which electrical equipment is placed, the electrical equipment being mounted and supported on the partition wall, the outer surface panel having a panel portion having a plurality of joining edge portions at positions corresponding to the positions of the partition wall.

Description

Switching device

Technical field

The present invention relates to switching device.

Background technology

On switching device, the dividing plate that utilizes grounded metal or insulant is to dividing between the main switchgear, at the inner interval that is called isolation ward that forms a plurality of sealings of cabinet.The purpose of so dividing is: the operating maintenance personnel are protected during near the electrification in high voltage part and protect the loud scope of the time limit photographic fixing of breaking down in switching device inside in addition for preventing that foreign matter from invading.Such isolation ward is called bus compartment, circuit breaker isolation ward and load-side cable isolation ward etc. according to the equipment of wherein placing usually.On the other hand, cabinet itself is in order to obtain desired structural strength, or according to making and the situation of assembling, constitutes the i.e. outer cabinet of a cabinet with being divided into a plurality of cabinet part mutual combination.

In existing switching device, main circuit electric equipments such as the insulator configuration of circuit breaker, main bus bar, current transformer, distribution conductor therebetween, support conductor and insulation is assemblied in the cabinet with the grounded metal sealing.Therefore, the assembly work of switching device is difficulty but also time-consuming not only, when moving the object of Heavy Weights such as main circuit electric equipment or conductor, needs large-scale carrying servicing units such as bridge crane, needs several operating personnel.In addition, depend on the kind of main circuit electrical equipment, the framework at cabinet top can hinder the use (for example holding flat 9-46829 communique with reference to the spy) of crane sometimes.

Therefore, the present invention's purpose is to obtain a kind of can being assembled easily at short notice and the switching device of cheapness and cabinet good rigidly with operating personnel few in number.

Summary of the invention

Thereby; According to the present invention; Switching device is to have the switching device that is formed in main bus bar and is connected many electric equipments of the main circuit that connects between the cable of usefulness with external circuit and places the cabinet that these electric equipments use, and said cabinet comprises: the outer surface panel of dividing said cabinet profile; And said cabinet internal separation become to place the partition wall that the isolation ward of said electric equipment is used; Said electric equipment is installed and is supported on partition wall or the joint portion; Said outer surface panel has a plurality of faceplate parts that jointing edge portion is arranged with corresponding position, said partition wall position; The faceplate part of the faceplate part of each wall of a plurality of isolation wards either party said wall on intersection adjacent to each other can omit, and the faceplate part of remaining the opposing party's wall becomes single partition wall public between isolation ward.

Description of drawings

Fig. 1 is the concise and to the point side direction sectional drawing of expression switching device of the present invention.

Fig. 2 is the exploded perspective view of expression switching device cabinet of the present invention.

Fig. 3 is the partial perspective view of expression switching device cabinet breaker chamber of the present invention.

Fig. 4 is the breaker chamber of presentation graphs 3 and the stereogram of main bus bar chamber bonding state.

Fig. 5 is the main bus bar chamber of presentation graphs 4 and the stereogram of partition wall and shunt conductor bonding state.

Fig. 6 is the main bus bar chamber of presentation graphs 5 and the stereogram of cable vault's bonding state.

Embodiment

Fig. 1 is the concise and to the point side direction sectional drawing of expression switching device of the present invention.Fig. 2 is the exploded perspective view of expression switching device cabinet 1 of the present invention.Switching device has the cabinet 1 of approximate cuboid, and a plurality of electric equipments that circuit breaker 2, control appliance 3, main bus bar 4, current transformer 56, cable 5 etc. constitute switching device are being placed in cabinet 1 inside.Cabinet 1 has the outer surface panel 6 that the approximate rectangular outer cabinet of the profile that constitutes cabinet 1 is used, and this outer surface panel 6 is made up of front panel 7, reverse side panel 8, top panel 9, base panel 10 and two side panel 11.Various partition wall 12 also is set in the cabinet 1; Cabinet 1 internal separation is become a plurality of isolation wards such as breaker chamber 13, control appliance chamber 14, main bus bar chamber 15 and cable vault 16, the independent respectively a plurality of electric equipments such as circuit breaker 2, control appliance 3, main bus bar 4, cable 5 of placing.

In the cabinet shown in Fig. 1 to Fig. 61; The sidewall panel part 19 of two rectangles that utilize the bottom panel part 18 of rectangle, make progress from the lateral edge of bottom panel part 18, with the interconnected top wall panel part in the top of the front portion of sidewall panel part 19 20, and rear wall part 21 divide, form breaker chamber 13.The front of breaker chamber 13 is that front wall panel part 22 is closed with the positive door that can open and close.The various faceplate parts that also will explain after these all have the bend that the interarea of at least one place, edges of plate opposite face plate portion is bent into approximate right angle, the faceplate part that will set forth in detail after this bend becomes and the jointing edge part 17 between the partition wall.

On the top wall panel part 20 of breaker chamber 13, control appliance chamber 14 is set; There are bottom panel part 23, sidewall panel part 24, top wall panel part 25 in control appliance chamber 14, reach rear wall part 26, and it is that front wall panel part 26 can be closed that the front of opening wide utilizes the door that opens and closes.

In this explanation; Suppose control appliance chamber 14 to be arranged on the breaker chamber 13 and describe in this stage, but control appliance chamber 14 also can other the time, for example combine the back with main bus bar chamber 15 or combine with stage after cable vault 16 combines again at it at breaker chamber 13.

Behind in breaker chamber that so is combined into 13 and control appliance chamber 14, configuration main bus bar chamber 15 combines.Main bus bar chamber 15 has two sidewall panel parts 27 of key shaped parallel to each other, between sidewall panel part 27, is disposing from the forward edge of sidewall panel part 27 and is retreating the top wall panel part 31 and the bottom panel part 32 of the front wall panel part 28, rear wall part 29 of setting, two doors 30 that hinge is arranged and combine.Bottom panel part 32 is retreated setting from the lower edge of sidewall panel part 27 34 to the top, and rear wall part 29 will be from sealing between top wall panel part 31 to the bottom panel part 32.Being provided with on the sidewall panel part 27 lets main bus bar 4 pass the opening 33 of usefulness.

Lower edge 34 places at sidewall panel part 27 its rear portions of main bus bar chamber 15 utilize suitable engagement means such as rivet, bolt, welding, bonding agent; Combine with the lateral edge 35 of the bottom panel part 18 of breaker chamber 13, the forward edge 36 of its underpart and anterior lower edge 37 places combine with the rear part edge 38 and the top edge 39 of the sidewall panel part 19 of breaker chamber 13 respectively.

Rear in main bus bar chamber 15 disposes cable vault 16, and combines with it.By top wall panel part 44 and there is the bottom panel part 46 of opening 45 to form cable vault 16 with two parallel sidewall panel parts 42, hinged plate 43.The front of cable vault 16 is opened wide.The forward edge 47 of sidewall panel part 42 combines with the rear part edge 48 of the sidewall panel part 27 of main bus bar chamber 15.

In such formation, can be described as a plurality of isolation wards and be breaker chamber 13, control appliance chamber 14, main bus bar chamber 15, and cable vault 16 respectively by front wall panel part, rear wall part, top wall panel part, bottom panel part, and two sidewall panel partly divide and form.

In addition; Can be described as front wall panel part, rear wall part, top wall panel part, bottom panel part, and two sidewall panel parts appropriate combination mutually of a plurality of isolation wards; Combine, as whole front panel 7, reverse side panel 8, top panel 9, base panel 10 and two side panel 11 that constitute cabinet 1.

Have again; Also can be described as a plurality of isolation wards and be breaker chamber 13, control appliance chamber 14, main bus bar chamber 15, and the faceplate part of faceplate part either party wall on superposed part adjacent to each other of each wall of cable vault 16 can omit, the faceplate part of remaining the opposing party's wall becomes single partition wall 12 public between isolation ward.For example fasten at breaker chamber 13 and the pass that is disposed at 15 of main bus bar chambers thereafter; When they assemble; The part that the rear wall part 21 of breaker chamber 13 just becomes as the front wall panel part of main bus bar chamber 15 works, and becomes public single partition wall 12.

In addition; The outer surface panel 6 that forms the profile of cabinet 1 is divided into a plurality of jointing edge parts 17 (for example: the lateral edge 35 of the bottom panel part 18 of the lower edge 34 of the sidewall panel part 27 of main bus bar chamber 15, forward edge 36 and lower edge 37 and breaker chamber 13, rear part edge 38 and top edge 39) that have in the corresponding position, position with partition wall 12, partition wall 12 combines with the jointing edge part 17 of faceplate part.

In the cabinet 1 that constitutes like this, as shown in Figure 1, conductor 51 connects three parallel main bus bars 4 of introducing in the cabinet 1 along separate routes.The partition wall 12 that leans against 16 of main bus bar chamber 15 and cable vaults is that the insulator 53 on the installation frame of supporting on the rear wall part 29 52 supports conductor 51 along separate routes, respectively to extending below.Installation frame 52 also can be contained on the joint portion 48 of sidewall panel part 27.Along separate routes the end of the 1st insulating sleeve 54 15 1 sides in the main bus bar chamber on the lower end of conductor 51 and the rear wall part 21 that is installed in main

bus bar chamber

15 and 13 of breaker chambers is connected.Also the 2nd insulating sleeve 55 is set on the rear wall part 21 in main

bus bar chamber

15 and 16 of cable vaults.The the above-mentioned the 1st and the 2nd

insulating sleeve

54,55 can be drawn the circuit breaker 2 that is disposed in the breaker chamber 13 and connected.The 2nd insulating sleeve 55 connects the shunt conductor 57 that is connected with current transformer 56 respectively on the end of cable vault's 16 1 sides, the cable 5 of usefulness that the other end of shunt conductor 57 connects and external circuit joins.Current transformer 56 is located at the rear wall part 29 of main bus bar chamber 15, and the mounting panel 56a that is used by the rigidity that improves rear wall part 29 supports.

In the cabinet of the switching device that constitutes like this, cabinet combined by a plurality of faceplate parts after cutting apart to be constituted again, is provided with at its bound fraction and forms the partition wall that isolation ward is used.Partition wall for example can utilize public bolt etc. to be installed in together on the joint portion of cabinet with partition wall; Or extend as extension a direction cabinet of cabinet joint portion is inner; To cut apart the plate installation is supported on this extension; Also can cabinet joint portion broad ways be prolonged sealing, use as cutting apart plate.

According to the present invention; The cabinet of switching device is divided into a plurality of parts; At the isolation ward of placing circuit breaker, main bus bar etc. with divide on the connecting portion between the isolation ward of cable vault of load-side, apparatus mounting plate, the insulation such as partition wall, main bus bar, current transformer of isolation ward is installed and supports the installation frame etc. of the insulator of conductor along separate routes.Thereby the cabinet rigidity improves, and the intensity that internal pressure rises during for internal fault is also high, so plate thickness can attenuate.

In addition, to shown in Figure 5, the electric equipment that constitutes the main circuit of switching device of the present invention is installed on the partition wall 12 that is supported in division main bus bar chamber 15 mostly like Fig. 1, Fig. 3.Promptly; The shunt conductor 51 that connects main bus bar 4 is through insulator 53 and installation frame 52; Be supported on the rear wall 29 of main bus bar chamber 15; The rear wall 21 that the 1st and the 2nd

insulating sleeve

54 and 55 is supported in breaker chamber 13 is on the antetheca 28 of main bus bar chamber 15, and conductor 57 and current transformer 56 lean on mounting panel 56a to be supported on the rear wall 29 of main bus bar chamber 15 along separate routes.

Thereby, in the switching device assembling, as previously mentioned; The breaker chamber 13 of Fig. 3 makes up with main bus bar chamber 15 and combines; Surround along separate routes conductor 51,

insulating sleeve

54 and 55 with faceplate part, form the state of Fig. 4, the rear wall 29 of main bus bar chamber 15 is installed with bolt etc. again; Through mounting panel 56a current transformer 56 and shunt conductor 57 are installed on rear wall 29, are formed the breaker chamber shown in Fig. 5 and the state of main bus bar chamber assembly.

That is, according to this assembling operation, earlier

insulating sleeve

54 and 55 is contained on the rear wall 21 of rather spacious on every side breaker chamber 13 among Fig. 3, these insulating sleeves are connected with conductor 51 along separate routes, the state that formation installation frame 52 and insulator 53 are also assembled with breaker chamber 13.With bolt etc. the jointing edge part 17 of the faceplate part of main bus bar chamber 15 jointing edge with the sidewall panel part 27 of breaker chamber 13 is partly combined then, hide conductor 51 and

insulating sleeve

54 and 55 along separate routes, just become the state of Fig. 4.Installation frame 52 usefulness bolts etc. combine with the jointing edge part 17 of sidewall panel part 27 and support on it.As shown in Figure 5 then; With bolt etc. rear wall part 29 is combined with the jointing edge part 17 of sidewall panel part 27; To be fixedly connected the back surface (one side in face of leaning among Fig. 5) that the current transformer 56 of conductor 57 along separate routes is installed in rear wall part 29 through mounting panel 56a, conductor 57 is connected with the 2nd insulating sleeve 55 along separate routes.

The assembly working of breaker chamber so far and main bus bar chamber is the work that needn't in narrow cingens space, carry out; Be the work of with panel electric equipment being surrounded again after in the space of spaciousness, installing electric equipment on the contrary; So the installment work of electric equipment is just convenient; The electric equipment of Heavy Weight also can effectively utilize the carrying auxiliary implement, can shorten working hours.And because electric equipment such as current transformer installation frame is supported in the partition wall of main bus bar chamber 15 is on the rear wall part 29, so the rigidity of cabinet improves.

As shown in Figure 6 again; The breaker chamber of Fig. 5 and main bus bar chamber assembly combine with cable vault 16 again, hide conductor 57 and current transformer 56 along separate routes, combine (Fig. 2) with control appliance chamber 14 again; Between various electric equipments, do not carry out distribution, can obtain switching device as shown in Figure 1.

Like this; According to the present invention; In switching device, the electric equipment installation that constitutes main circuit is supported in the cabinet internal separation is become on the partition wall of isolation ward, and the faceplate part of cabinet is combining with corresponding position, partition wall position; Operating personnel few in number assembling easily at short notice can be leaned on, the switching device of good rigidly can be obtained with cheapness.

Claims

1. switching device has and is formed in main bus bar and is connected many electric equipments of the main circuit that connects between the cable of usefulness with external circuit and places the cabinet that these electric equipments are used, it is characterized in that,

Said cabinet comprises: the outer surface panel that limits said cabinet profile; And said cabinet internal separation become to place the partition wall that the isolation ward of said electric equipment is used,

Said electric equipment is installed and is supported on the said partition wall,

Said outer surface panel is being split into a plurality of faceplate parts that jointing edge portion is arranged with corresponding position, said partition wall position,

The faceplate part of the faceplate part of each wall of a plurality of isolation wards either party said wall on intersection adjacent to each other can omit, and the faceplate part of remaining the opposing party's wall becomes single partition wall public between isolation ward.

2. switching device as claimed in claim 1 is characterized in that,

Said electric equipment comprises: circuit breaker; The the 1st and the 2nd insulating sleeve that can be connected with said circuit breaker;

One end connects the 1st conductor along separate routes that said the 1st insulating sleeve, the other end connect said main bus bar; One end connects the 2nd conductor along separate routes that said the 2nd insulating sleeve, the other end connect said cable; And be located at the said the 2nd current transformer on the conductor along separate routes,

The the said the 1st and the 2nd insulating sleeve, said the 1st shunt conductor and said current transformer are directly installed and are supported on the said partition wall.

3. switching device as claimed in claim 1 is characterized in that,

Said cabinet is divided into the isolation ward of placing circuit breaker, main bus bar; And the isolation ward that limits the cable vault of load-side, partition wall, the apparatus mounting plate of current transformer, the insulation of isolation ward are installed on the joint portion between these isolation wards support the installation frame of the insulator of conductor along separate routes.