CN1073298C - Gas-insulated metal enclosed switchgear - Google Patents

Gas-insulated metal enclosed switchgear Download PDF

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Publication number
CN1073298C
CN1073298C CN97117452A CN97117452A CN1073298C CN 1073298 C CN1073298 C CN 1073298C CN 97117452 A CN97117452 A CN 97117452A CN 97117452 A CN97117452 A CN 97117452A CN 1073298 C CN1073298 C CN 1073298C
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CN
China
Prior art keywords
insulating sleeve
gas
load
breaker
phase
Prior art date
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Expired - Lifetime
Application number
CN97117452A
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Chinese (zh)
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CN1174432A (en
Inventor
宫川胜
吉田哲雄
佐藤章
堀切和仁
阪口修
平本武
正木信男
乡富夫
児玉良一
池田顺一
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Toshiba Corp
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Toshiba Corp
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Publication of CN1174432A publication Critical patent/CN1174432A/en
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
    • H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
    • H02B13/035—Gas-insulated switchgear
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66—Vacuum switches
    • H01H33/662—Housings or protective screens
    • H01H33/66207—Specific housing details, e.g. sealing, soldering or brazing
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/20—Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
    • H02B1/202—Cable lay-outs
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
    • H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
    • H02B13/035—Gas-insulated switchgear
    • H02B13/0354—Gas-insulated switchgear comprising a vacuum switch
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
    • H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
    • H02B13/035—Gas-insulated switchgear
    • H02B13/0358—Connections to in or out conductors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B13/00—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
    • H02B13/02—Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
    • H02B13/035—Gas-insulated switchgear
    • H02B13/045—Details of casing, e.g. gas tightness

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Patch Boards (AREA)
  • Gas-Insulated Switchgears (AREA)

Abstract

To obtain a gas-insulated safety enclosed switchgear capable of exhibiting the advantage of gas insulation by reducing the depth of the box. A space P1 in the interphase direction of insulating bushings 7N, 7O, 7P provided parallel the top part of a box is made narrower than the width W of the head part 7a of the insulating bushings 7N, 7O, 7P. Therefore, the side surface of a trapezoidal part formed at the right side of the first phase insulating bushing 7N is opposed and mutually adjacent to the side surface of a trapezoidal part at the left side of the second phase insulating bushing 7O. The third insulating 7P to be provided at the rear of the second insulating bushing 7O is positioned in the same manner.

Description

Gas-insulated metal enclosed switchgear
The present invention relates to a kind of gas-insulated metal enclosed switchgear.
Figure 11 represents the main circuit of gas-insulated metal enclosed switchgear one example commonly used with single line connection line figure.Figure 12 is the plane graph of gas-insulated metal enclosed switchgear commonly used shown in Figure 11.
Figure 11 and gas-insulated metal enclosed switchgear shown in Figure 12 are exactly two circuit receiving equipments of the secondary 2CB of so-called elementary 2CB-1 voltage and current instrument transformer system.Under the introducing on the receiver side is floor in the house, carry out, and connection between the receiver side and the connection between the load-side are to carry out on the ceiling in house.
In Figure 11 and 12, be installed on central authorities and containing on the both sides of combination voltage summation current transformer distribution board (below be called voltage and current instrument transformer dish) 51 of combination voltage summation current transformer (below be called the voltage and current instrument transformer), be provided with elementary dish 50A of No.1 current transformer and the elementary dish 50B of No.2 current transformer symmetrically, it is connected on the load-side of voltage and current instrument transformer dish 51 by cable.
At this No.1 and the elementary dish 50A of No.2 current transformer, on the outside of 50B, be provided with the No.1 incoming panel symmetrically, it is connected on the mains side of voltage and current instrument transformer dish, and No.2 incoming panel 49B is connected on the mains side that is different from the electric power system of No.1 incoming panel.
On the lower end of tag 32A, it is installed on the posterior end of No.1 incoming panel 49A on the left end, is connected with cable, and it is connected with the lead-in of receiving equipment, and this gas-insulated metal enclosed switchgear wherein is provided.Current transformer 31A is connected with this cable.
On the upper end of tag 32A, on this tag 32A, lightning arrester 33A is installed successively, voltage detector 34A, earthed switch 35A and elementary section breaker 36A.The mains side of elementary section breaker 36A is connected on the tag 32A, and the load-side of elementary section breaker 36A links to each other with the mains side of vacuum circuit-breaker 37A.
Vacuum circuit-breaker 37A links to each other with the lower end of insulating sleeve 46A by secondary section breaker 38A, carries out the outside in order to run through No.1 incoming panel 49A casing top and connects.
Similarly, cable, promptly being connected in wherein provides on the receiving equipment of the gas-insulated metal enclosed switchgear different system lead-in, is connected on the lower end of the tag 32B on the right-hand member, and it is installed on the following rear end of № .2 incoming panel 49B.Current transformer 31B is connected on this cable.
On the upper end of tag 32B, on this tag 32B, lightning arrester 33B is installed successively, voltage detector 34B, earthed switch 35B and elementary section breaker 36B.The mains side of elementary section breaker 36B is connected on the tag 32B, and the load-side of elementary section breaker 36B links to each other with the mains side of vacuum circuit-breaker 37B.
The load-side of vacuum circuit-breaker 37B links to each other with earthed switch 39, with so that busbar grounding, and is connected with the lower end of insulating sleeve 46B by secondary section breaker 38B, carries out the outside connection in order to run through No.2 incoming panel 49B casing top.
Then, current transformer 45A is connected with the cable that is connected in No.1 current transformer (not shown).This cable is connected in tag 44A, and it provides in order to run through the upper end of No.1 current transformer primary distribution dish 50A.The lower end of tag 44A is connected in the load-side of mains side and the vacuum circuit-breaker 42A of earthed switch 43A.
The conductor dbus that is connected in vacuum circuit-breaker 42A mains side is crossed on the rear portion of section breaker 41A upward to No.1 current transformer primary distribution dish 50A that is contained under the vacuum circuit-breaker 42A, and link to each other with the lower end of insulating sleeve 46C, its rear portion of longitudinally running through the top is used for outside the connection.
Similarly, current transformer 45B is connected with the cable that is connected in No.2 current transformer (not shown).This cable is connected in tag 44B, and it provides in order to run through the upper end of No.2 current transformer primary distribution dish 50B.The lower end of tag 44B is connected in the load-side of mains side and the vacuum circuit-breaker 42B of earthed switch 43B.
The conductor dbus that is connected in vacuum circuit-breaker 42B mains side is crossed on the rear portion of section breaker 41B upward to No.2 current transformer primary distribution dish 50B that is contained under the vacuum circuit-breaker 42B, and link to each other with the lower end of insulating sleeve 46D, its rear portion of longitudinally running through the top is used for outside the connection.
Further, on voltage and current instrument transformer dish, the conductor upper end that is connected on voltage and current instrument transformer 40 power supply side terminals is connected with the lower end of insulating sleeve 46E, it can longitudinally run through on the slightly forward position of voltage and current instrument transformer dish 51 center of top, and the conductor upper end that will be connected on voltage and current instrument transformer 40 load side terminal is connected with the lower end of insulating sleeve 46F, and it can longitudinally run through on the position after voltage and current instrument transformer dish 51 center of top are slightly leaned on.
Upper end at the insulating sleeve 46A that vertically runs through No.1 incoming panel 49A top, vertically run through voltage and current instrument transformer dish 51 insulating sleeve 46E the upper end and vertically run through among the upper end of insulating sleeve 46B at No.2 incoming panel 49B top, coupled R phase CV cable (below abbreviate cable as) 47a is provided respectively, 47a ', S phase cable 47b, 47b ' and T be cable 47c mutually, 47c '.These cables 47a, 47a ', 47b, 47b ', 47c and 47c ' have formed the primary side bus, i.e. first bus 47.
Upper end at the insulating sleeve 46C that vertically runs through the elementary dish 50A of No.1 current transformer top, vertically run through voltage and current instrument transformer dish 51 tops insulating sleeve 46F the upper end and vertically run through among the upper end of insulating sleeve 46D at the elementary dish 50B of No.2 current transformer top, coupled R phase cable 48a is provided respectively, 48a ', S phase cable 48b, 48b ' and T be cable 48c mutually, 48c '.These cables 48a, 48a ', 48b, 48b ', 48c and 48c ' have formed the primary side bus, i.e. second bus 48.
In addition, first bus 47, the upper end of second bus 48 and all insulating sleeves coats by the cable duct tube (not shown), it is placed in No.1 incoming panel 49A, the elementary dish 50A of No.1 current transformer, voltage and current instrument transformer dish 51 is on elementary dish 50B of No.2 current transformer and the No.2 incoming panel 49B.
Further, Figure 13 is the amplification vertical section details drawing of No.1 shown in the Figure 11 and 12 that sees from the right side and No.2 incoming panel 49a and 49b.
In Figure 13, shell 52 has the dividing plate 52a in approximate U type cross section, in order to divide central authorities and front and rear part, central authorities on this dividing plate 52a front side and the L type cross section dividing plate 52b between the top and the U type cross section dividing plate 52c before dividing plate 52a.These dividing plates 52A, the inboard of 52b and 52c is filled with sulfur hexafluoride gas.
In the inboard of dividing plate 52c, be mounted with vacuum circuit-breaker 37A (37B) shown in Figure 11.The top electrode of vacuum circuit-breaker 37A (37B) is connected in the front end of upper spacer, and it laterally runs through the top of dividing plate 52a front side.The bottom electrode of vacuum circuit-breaker 37A (37B) is connected in the front end of lower clapboard, and it is laterally through the dividing plate 52a on the upper spacer downside.
On the bottom of vacuum circuit-breaker 37A (37B), on dividing plate 52c downside, be mounted with the operating mechanism 37a of vacuum circuit-breaker 37A (37B).
On the bottom of dividing plate 52a front side, the circuit breaker of elementary section breaker 36A (36B) is fixed to the dorsal part of dividing plate 52a.Top electrode that will this elementary section breaker 36A (36B) is connected on the rear end of lower clapboard.
On the bottom of elementary section breaker 36A (36B), include the circuit breaker of earthed switch 35A (35B).When this earthed switch 35A (35B) operating mechanism 35a was provided, it stretched to the bottom front end of dividing plate 52c.
Elementary section breaker 36A (36B) and its operating structure 36a (not shown), and earthed switch 35A (35B) can be by being connected with helical gear by the action bars shown in the chain-dotted line with its operating mechanism 35a.
The bottom electrode of elementary section breaker 36A (36B) is connected on the front end of voltage detector 34A (34B), its upper end crosswise fixed by tag 32A (32B) is to the front of dividing plate 52a rear end, and its tag vertically is applied on the rear portion of dividing plate 52a.The front end of this voltage detector 34A (34B) is connected in the upper end of lightning arrester 33A (33B), and it is the dividing plate 52a on tag 32A (32B) rear side vertically.
On the bottom of dividing plate 52b, be fixed with the circuit breaker of secondary section breaker 38A (38B).The front end of secondary section breaker 38A (38B) is connected in the rear end of upper spacer.In the front of dividing plate 52c, when the operating structure 38a of this secondary section breaker 38A (38B) was provided, it slightly up stretched to middle body.
, pass dividing plate 52a airtightly to dorsal part, and, then, be connected on the axle in secondary section breaker 38A (38B) the mounting base central authorities upward to the side of shell by the action bars of this operating structure 38 shown in the chain-dotted line and analog down to the side.
Only in the No.2 incoming panel, on the rear portion of secondary section breaker 38B, include by the earthed switch shown in the chain-dotted line 39.The operating mechanism of this earthed switch 39 is installed on the side of operating mechanism 38a in parallelly.
On the top on secondary section breaker 38A (38B) top, be mounted with insulating sleeve 46A (46B) (figure 13 illustrates its three) airtightly by mounting base.The lower end of this insulating sleeve 46A (46B) is connected on the rear end of secondary section breaker 38A (38B) (only show one) in Figure 13.At the R phase cable 47a (47a ') shown in Figure 12, S phase cable 47b (47b ') and T cable 47c (47c ') mutually are connected on the upper end of insulating sleeve 46A (46B).
Deleted the longitdinal cross-section diagram of elementary dish 50A of No.1 and No.2 current transformer and 50B and voltage and current instrument transformer dish 51 here.
The distribution box degree of depth of the gas-insulated metal enclosed switchgear in structure as mentioned above is subject to the quantity and the width of the insulating sleeve that vertically runs through the distribution box top.
Reason is, need on the rear portion of the insulating sleeve 46A (46B) that vertically runs through No.1 incoming panel 49A shown in Figure 13 and No.2 incoming panel 49B cover top portion, obtain certain space, be used to install 3 phase insulating sleeve 46C, 46D is so that cable is connected No.1 with 50B with the elementary dish 50A of No.2 current transformer with voltage and current instrument transformer dish 51.Must determine the layout of primary circuit equipment under these conditions, its equipment comprises the installation unit of the insulating sleeve of No.1 and the elementary dish 50A of No.2 current transformer and 50B and voltage and current instrument transformer dish 51.
Therefore, on No.1 and elementary dish 50A of No.2 current transformer and 50B, tag 44A is set on anterior position shown in Figure 12,44B, it is connected in load-side.In addition, tag 44A, 44B is to be installed with the insulating sleeve 46C at rear portion and the direction of 46D quadrature respectively, so that reduce transverse width.Yet this method is not suitable for the vacuum circuit-breaker that reduces size and the section breaker of exploitation recently.
Particularly, when on middle body shown in Figure 11 and 12, not comprising voltage and current instrument transformer dish 51, and when being arranged on it on left end or the right-hand member, if or load be based on the user and need be 3 groups, transversely will be increased to 9 lines at Figure 12 with the cable of 6 line settings.Therefore, the degree of depth of distribution box will increase, thereby has weakened the characteristic of the gas-insulated metal enclosed switchgear of attempting to reduce size.
Therefore, an object of the present invention is to provide a kind of gas-insulated metal enclosed switchgear, it can reduce the degree of depth of its shell, and it can demonstrate good gas-insulated characteristic.
These and other purpose of the present invention can be by providing a kind of like this gas-insulated metal enclosed switchgear, and it comprises:
One distribution box is used to admit many circuit arrangements;
Three first insulating sleeves, it runs through the outer wall of described distribution box;
Three second insulating sleeves, it runs through the outer wall of described distribution box;
Three cables, its adjacent location in parallel to each other with described distribution box outer wall, its every is connected between one of one of described first insulating sleeve and described second insulating sleeve; It is characterized in that:
Each described first and second insulating sleeve is formed with the head of quadrangle part on its both sides, and connects one of described cable on described quadrangle at least one side partly, in order to connect described circuit arrangement respectively;
The first side side surface of the described quadrangle part of the first phase insulating sleeve of being drawn by described first and second insulating sleeves is provided with adjacent to the second side side surface of the described quadrangle part of the second phase insulating sleeve of being drawn by described first and second insulating sleeves respectively; With
The described quadrangle of the second phase insulating sleeve first side side surface partly of being drawn by described first and second insulating sleeves is provided with adjacent to the first side side surface of the described quadrangle part of the third phase insulating sleeve of being drawn by described first and second insulating sleeves respectively.
According to a scheme of the present invention, a kind of gas-insulated metal enclosed switchgear is provided, it comprises:
One distribution box, be used to admit first incoming panel of reception from first electric power of first power-supply system, reception is from second incoming panel of second electric power of second source system, in order to the bus coupling distribution board that receives first inlet wire side bus coupling section breaker, second inlet wire side bus coupling section breaker, first load-side bus coupling section breaker, second load-side bus coupling section breaker with in order to receive the voltage and current instrument transformer dish of voltage and current instrument transformer;
First side of described first inlet wire side bus coupling section breaker is connected on the load-side of described first incoming panel;
First side of described second inlet wire side bus coupling section breaker is connected on the load-side of described second incoming panel;
Second side of described first inlet wire side bus coupling section breaker is connected on second side of described second inlet wire side bus coupling section breaker; It is characterized in that:
First side of described first inlet wire side bus coupling section breaker is connected on the described load-side of described first incoming panel, and is suitable for connecting on the first load-side current transformer;
First side of described second load-side bus coupling section breaker is connected on the described load-side of described second incoming panel by the voltage and current instrument transformer, and is suitable for connecting on the second load-side current transformer;
Second side of described first load-side bus coupling section breaker is connected on second side of described second load-side bus coupling section breaker, and is suitable for connecting on the 3rd load-side current transformer;
The first insulating sleeve group, it is applied on the front side at the described distribution box top on its first side, is used to connect the described load-side of described first incoming panel and described first side of described first inlet wire side bus coupling section breaker;
The second insulating sleeve group, the described front side that it is applied in the described distribution box top on its second side is used to connect the described load-side of described second incoming panel and described first side of described second inlet wire side bus coupling section breaker;
The 3rd insulating sleeve group, the described rear side that it is applied in the described distribution box top on its first side is used to connect the described load-side of described first incoming panel and described first side and the described first load-side current transformer of described first load-side bus coupling section breaker;
The 4th insulating sleeve group, the described rear side that it is applied in the described distribution box top on its second side is used to connect described first side and the described second load-side current transformer of described voltage and current instrument transformer and described second load-side bus coupling section breaker; With
Pentasyllabic quatrain edge sleeve pipe group, the described top that it runs through described distribution box is used to connect described second side and described the 3rd load-side current transformer of described first and second load-side buses coupling section breaker.
Each described first, second, third with the 4th insulating sleeve group by first mutually, second mutually and the third phase insulating sleeve form; With
Wherein in each the described first, second, third and the 4th insulating sleeve group,
Each described first phase, second phase and third phase insulating sleeve are formed with the termination of quadrangle part on its both sides;
The first side side surface of the described quadrangle part of the described first phase insulating sleeve is provided with adjacent to the second side side surface of the described quadrangle part of the described second phase insulating sleeve; With
The first side side surface of the described quadrangle part of the described second phase insulating sleeve is provided with adjacent to the first side side surface of the described quadrangle part of described third phase insulating sleeve.
Lian Zhao another program of the present invention provides a kind of gas-insulated metal enclosed switchgear, it is characterized in that comprising:
First incoming panel, in order to receive first power supply of first electric power system, it has the first insulating sleeve group, and this insulating sleeve group runs through the top of described incoming panel distribution box, is used to connect load-side;
Second incoming panel, in order to receive the second source of second electric power system, it has the second insulating sleeve group, and this insulating sleeve group runs through the top of described incoming panel distribution box, is used to connect described load-side;
Voltage and current instrument transformer dish, it is positioned between described first and second incoming panels, in order to receive the voltage and current instrument transformer, it has the third and fourth insulating sleeve group, and this third and fourth insulating sleeve group runs through the top of described voltage and current instrument transformer dish distribution box;
Described the 3rd insulating sleeve is connected in described first and second insulating sleeves by cable;
The first current transformer primary distribution dish, it is positioned between described first incoming panel and the described voltage and current instrument transformer dish, it has pentasyllabic quatrain edge sleeve pipe group, this pentasyllabic quatrain edge sleeve pipe group runs through the top of the described first current transformer primary distribution dish distribution box, in order to give load with feeding power;
The second current transformer primary distribution dish, it is positioned between described second incoming panel and the described voltage and current instrument transformer dish, it has the 6th insulating sleeve group, the 6th insulating sleeve group runs through the top of the described second current transformer primary distribution dish distribution box, in order to give load with feeding power;
Described the 4th insulating sleeve group is connected on the described voltage and current instrument transformer and is connected on the described the 5th and the 6th insulating sleeve;
The first phase insulating sleeve of described the 4th insulating sleeve group is positioned on the front side of described the 3rd insulating sleeve group;
The third phase insulating sleeve of described the 4th insulating sleeve group is positioned on the rear side of described the 3rd insulating sleeve group;
The second phase insulating sleeve of described pentasyllabic quatrain edge sleeve pipe group is connected on the second phase insulating sleeve of the described first insulating sleeve group;
The second phase insulating sleeve of described the 6th insulating sleeve group is connected on the second phase insulating sleeve of the described second insulating sleeve group;
The second phase insulating sleeve of described thus the 3rd insulating sleeve group jointly is used as the second phase insulating sleeve of described the 4th insulating sleeve group.
Wherein each described first, second with the 3rd insulating sleeve group by first mutually, second mutually and the third phase insulating sleeve form; With
Wherein in each described first, second and the 3rd insulating sleeve group;
Each described first phase, second phase and third phase insulating sleeve all are formed with the termination of quadrangle part on its both sides;
The first side side surface of the described quadrangle part of the described first phase insulating sleeve is provided with adjacent to the side surface of described quadrangle part second side of the described second phase insulating sleeve; With
The first side side surface of the described quadrangle part of the described second phase insulating sleeve is provided with adjacent to the side surface of described quadrangle part first side of described third phase insulating sleeve.
As mentioned above, according to the present invention, can reduce by the space that insulating sleeve occupied on gas-insulated metal enclosed switchgear distribution box outer wall and the top.Therefore, just can obtain to reduce the gas-insulated metal enclosed switchgear that the distribution box degree of depth also can show the gas-insulated characteristic.
In conjunction with the drawings and the advantage that will be better understood comprehensive content of the present invention and brought with reference to following detailed description, wherein:
Fig. 1 is the plane graph of expression according to the gas-insulated metal enclosed switchgear of first embodiment of the invention;
Fig. 2 is the amplification sectional view of A-A shown in Figure 1;
Fig. 3 is in the primary circuit of gas-insulated metal enclosed switchgear shown in Fig. 1 single line connection diagram according to first embodiment of the invention;
Fig. 4 is at the primary circuit of gas-insulated metal enclosed switchgear shown in Fig. 1 single line connection configuration figure according to first embodiment of the invention;
Fig. 5 is the local details drawing that amplifies of Fig. 1;
Fig. 6 is the amplification sectional view of B-B shown in Figure 1;
Fig. 7 is the amplification sectional view of C-C shown in Figure 1;
Fig. 8 is the amplification sectional view according to the gas-insulated metal enclosed switchgear of second embodiment of the invention;
Fig. 9 is the plane graph of expression according to the gas-insulated metal enclosed switchgear of third embodiment of the invention;
Figure 10 is the amplification sectional view of D-D shown in Figure 9;
Figure 11 is the primary circuit single line connection configuration figure of gas-insulated metal enclosed switchgear one example commonly used;
Figure 12 is the plane graph of gas-insulated metal enclosed switchgear shown in Figure 11; With
Figure 13 is the amplification sectional view of D-D shown in Figure 12.
Referring now to accompanying drawing, wherein similar label represents to run through the same or corresponding components of some accompanying drawings, various details embodiment.
Fig. 1 is the plane graph of expression according to the gas-insulated metal enclosed switchgear of first embodiment of the invention, and it is corresponding to according to the Figure 12 shown in the prior art.
Also have, Fig. 3 is the single line diagram of switch main circuit shown in Figure 1.Fig. 4 is that the single line of main circuit equipment state shown in Figure 3 connects distribution map, and it is received in each distribution box shown in Figure 1 respectively.Here, Fig. 4 is corresponding to Figure 11 of expression prior art.
In these accompanying drawings, load-side is 3 groups (current transformers), and bus coupling distribution board 3 and section breaker distribution board 4 (its details is not shown) all are added to the middle part of the distribution board of alinement.Therefore, connecting the cable of distribution box and the quantity of insulating sleeve can increase, and they have been complicated.
At first, in Fig. 1, on the left side of the voltage and current instrument transformer dish 1 on the Width shown in showing on the right side, rear portion, provide No.2 current transformer primary distribution dish 2B.Because the accompanying drawing limit provides No.3 current transformer primary distribution dish 2C on the right side of the voltage and current instrument transformer dish 1 shown in voltage summation current transformer dish 1 front on the front row.
On the left side of the No.2 current transformer primary distribution dish 2B on the left side, be provided at the bus coupling distribution board 3 of Width, it will be described in detail in Fig. 2.On the left side of this bus coupling distribution board 3, also provide section breaker distribution board 4, it will be described in detail in Fig. 3 and Fig. 4.
On the left side of this section breaker distribution board 4, provide No.1 current transformer primary distribution dish 2A.On the left side of this No.1 current transformer primary distribution dish 2A and on the right side of above-mentioned No.3 current transformer primary distribution dish 2C, also provide incoming panel 6A, 6B, it is connected with the different system power supply respectively.
On the top of the incoming panel 6A on the left side, provide insulating sleeve 7A, 7B and 7C, it is with the Z-shaped top of running through on the front side.
On the front end at the No.1 current transformer primary distribution dish 2A top that is provided on the incoming panel 6A right side, be similar to according to prior art at tag 44A shown in Figure 12, tag 10A is provided, 10B and 10C, it is connected on the step-down transformer on the load-side.Insulating sleeve 8A also is provided, 8B and 8C, it is with on the Z-shaped rear side that vertically is applied in the top.
On the top of the section breaker dish 4 that is provided on the No.1 current transformer primary distribution dish 2A right side, insulating sleeve 7D is provided, 7E and 7F, it is with the Z-shaped top that vertically is applied on the front side.At these insulating sleeves 7D, the back of 7E and 7F provides insulating sleeve 8D, 8E and 8F, and it is with the Z-shaped top of vertically running through.
On the top of the bus that provided on section breaker dish 4 right sides coupling distribution board 3, insulating sleeve 7G is provided, 7H and 7J, it is with on the Z-shaped preceding left side that vertically is applied in the top.At these insulating sleeves 7G, the back of 7H and 7J provides insulating sleeve 8G, 8H and 8J, and it is with the Z-shaped top of running through.
In addition, on the top of bus coupling distribution board 3, provide insulating sleeve 7K, 7L and 7M, it is with on the Z-shaped preceding right side that vertically is applied in the top.At these insulating sleeves 7K, the back of 7L and 7M provides insulating sleeve 8K, 8L and 8M, and it is with the Z-shaped top of vertically running through.
Also have, on the top of bus coupling distribution board 3, about two cover insulating sleeve 7G, 7H, 7J, 8G, 8H, 8J and 7K, 7L, 7M, 8K, 8L between the 8M, provides insulating sleeve 9A, 9B and 9C, it is vertically to run through the top by the front side to the order of rear side.
On the front end of the No.2 current transformer primary distribution dish 2B that is provided on bus coupling distribution board 3 right sides, be similar to according to prior art and provide tag 10D at the tag 44A shown in Figure 12,10E and 10F, it is connected in the step-down transformer on the load-side.At these tags 10D, the back of 10E and 10F provides insulating sleeve 9D respectively, 9E and 9F, and it is vertically to be run through with Z-shaped by the order of front side to rear side, and it has and insulating sleeve 9A, the space that the space between 9B and the 9C is identical.
On the top of the voltage and current instrument transformer dish 1 that is provided on the No.2 current transformer primary distribution dish 2B right side, insulating sleeve 7N is provided, 7O and 7P, it vertically is applied on the preceding left side with Z-shaped.At these insulating sleeves 7N, the back of 7O and 7P provides insulating sleeve 8N, 8O and 8P, and it vertically is applied on the right side, back with Z-shaped.
On the front end at the No.3 current transformer primary distribution dish 2C top that is provided on voltage and current instrument transformer dish 1 right side, be similar to according to prior art and provide tag 10G at the tag 44A shown in Figure 12,10H and 10J, it is connected in the step-down transformer on load-side.At these tags 10G, the back of 10H and 10J provides insulating sleeve 8Q, 8R and 8S, and it is with on the Z-shaped rear side that vertically is applied in the top.
On the top of the incoming panel 6B that is provided on the No.3 current transformer primary distribution dish 2C right side, insulating sleeve 7Q is provided, 7R and 7S, its Z vertically is applied on the front side with shape.
On the top of the distribution board of these arrangements, A phase cable 11A is provided, B phase cable 11B and C be cable 11C mutually, and it is respectively at insulating sleeve 7A, 7B and 7C and insulating sleeve 7D, connect between 7E and the 7F, A phase cable 11A ' also is provided, and B phase cable 11B ' and C be cable 11C ' mutually, and it is respectively at insulating sleeve 7D, 7E and 7F and insulating sleeve 7G connect between 7H and the 7J.These cables 11A, 11B, 11C, 11A ', 11B ' and 11C ' have formed first bus, in order at incoming panel 6A, connect between section breaker distribution board 4 and the bus coupling distribution board 3.
On the top of the distribution board of these arrangements, A phase cable 12A is provided, B phase cable 12B and C be cable 12C mutually, and it is respectively at insulating sleeve 8A, 8B and 8C and insulating sleeve 8D, connect between 8E and the 8F, A phase cable 12D also is provided, and B phase cable 12E and C be cable 12F mutually, and it is respectively at insulating sleeve 8D, 8E and 8F and insulating sleeve 8G connect between 8H and the 8J.These cables 12A, 12B, 12C, 12D, 12E and 12F have formed triple bus-bar, in order at No.1 current transformer primary distribution dish 2A, connect between section breaker distribution board 4 and the bus coupling distribution board 3.
On the distribution board top of these arrangements, A phase cable 11D is provided, B phase cable 11E and C be cable 11F mutually, and it is respectively at insulating sleeve 7K, 7L and 7M and insulating sleeve 7N, connect between 7O and the 7P, A phase cable 11G also is provided, and B phase cable 11H and C be cable 11J mutually, and it is respectively at insulating sleeve 7N, 7O and 7P and insulating sleeve 7Q connect between 7R and the 7S.These cables 11D, 11E, 11F, 11G, 11H and 11J have formed second bus, in order at bus coupling distribution board 3, connect between voltage and current instrument transformer dish 1 and the incoming panel 6B.
On the distribution board top of these arrangements, A phase cable 12G is provided, B phase cable 12H and C be cable 12J mutually, and it is respectively at insulating sleeve 8K, 8L and 8M and insulating sleeve 8N, connect between 8O and the 8P, A phase cable 12K also is provided, and B phase cable 12L and C be cable 12M mutually, and it is respectively at insulating sleeve 8N, 8O and 8P and insulating sleeve 8Q connect between 8R and the 8S.These cables 12G, 12H, 12J, 12K, 12L and 12M have formed the 4th bus, in order at bus coupling distribution board 3, connect between voltage and current instrument transformer dish 1 and the No.3 current transformer primary distribution dish 2C.
On the distribution board top of these arrangements, A phase cable 13A is provided, B phase cable 13B and C be cable 13C mutually, and it is respectively at insulating sleeve 9A, and 9B and 9C and insulating sleeve 9D connect between 9E and the 9F.These cables 13A, 13B and 13C have formed the 5th bus, in order to connect between bus coupling distribution board 3 and No.2 current transformer primary distribution dish 2B.
As a result, on the top of bus coupling distribution board 3,5 groups altogether (totally 15) insulating sleeves are provided, in order to stube cable.Therefore, on the top, provide 9 line cables in the horizontal, described as follows shown in Figure 2.
Fig. 3 represents gas-insulated metal enclosed switchgear primary circuit single line diagram shown in Figure 1.Fig. 4 represents that the primary circuit single line connects distribution map, and it shows the state that distributes and be contained in the primary circuit equipment shown in Figure 3 in the distribution box shown in Figure 1.
As shown in Figure 3, this gas-insulated metal enclosed switchgear is represented a kind of receiving equipment, will offer load by two electric power that system received in order to the step-down by three transformers.
In Fig. 3 and 4, the like numerals will of equipment is represented identical with equipment shown in Figure 11 or appropriate section.In Fig. 3, CT represents current transformer, and LA represents lightning arrester, and VD represents voltage detector, and DS represents section breaker, and VCB represents vacuum circuit-breaker, and ES represents earthed switch and T indication transformer.
In addition, section breaker 14C and 14A play a part first and second inlet wire side bus couplings section breaker respectively, and section breaker 14D and 14B play a part first and second load-side buses coupling section breaker respectively.
Section breaker 15A plays a part the load-side section breaker, and vacuum circuit-breaker 16A plays a part inlet wire side vacuum circuit-breaker and section breaker 15B plays a part the mains side section breaker.Vacuum circuit- breaker 16B and 16C play a part the load-side vacuum circuit-breaker respectively.
By reference number 7A, B, the equipment in the insulating sleeve shown in the C are received among the No.1 incoming panel 6A shown in Figure 1 from the upper left current transformer of Fig. 3 (CT) beginning.The insulating sleeve 7A that provided is provided for reference number 7A, B, C, 7B, and 7C, it vertically is applied on the top of incoming panel 6A shown in Figure 1.
In addition, by reference number 7Q, R, the equipment in the insulating sleeve shown in the S are received among the No.2 incoming panel 6B shown in Figure 1 from the upper right current transformer of Fig. 3 (CT) beginning.The insulating sleeve 7Q that provided is provided for reference number 7Q, R, S, 7R, and 7S, it vertically is applied on the top of incoming panel 6B shown in Figure 1.
Below, the insulating sleeve 7D that provided is provided for the insulating sleeve 7A shown on Fig. 3 left side, 7B, the reference number 7D shown on the 7C load-side, E, F and 8D, E, F, 7E, and 7F and 8D, 8E, 8F, it vertically is applied on the top of section breaker distribution board 4 respectively.
In addition, in Fig. 3, reference number 7G ..., 8J ..., 9A ... also expression vertically vertically runs through the insulating sleeve at each distribution box top.Yet, comprise that the explanation of other primary circuit equipment will be omitted, wherein they are interconnective by these insulating sleeves.
As shown in Figure 1 and Figure 4, provide 5 groups of insulating sleeves on the top of bus coupling distribution board 3, it is connected on the distribution box of the left and right sides by cable.Under this gas-insulated metal enclosed switchgear situation, insulating sleeve is placed on the top of this bus coupling distribution board 3 with extremely intensive form.
Fig. 2 is the amplification longitdinal cross-section diagram of A-A shown in Figure 1.Fig. 2 is provided by the insulating sleeve that provided, and it vertically is applied on the top of bus coupling distribution board 3, and main circuit equipment can be arranged in the distribution box of bus coupling distribution board 3.
In Fig. 2, in the distribution box 22 of this bus coupling distribution board 3, also provide the dividing plate 22b that erects in central authorities, dividing plate 22a before this dividing plate 22b and the dividing plate 22c behind dividing plate 22b.
At these dividing plates 22a, on the middle part of 22b and 22c, between dividing plate 22a and 22b, have lateral partitions 22f, and between dividing plate 22b and 22c, have lateral partitions 22g.
By dividing plate 22a, in the gas-insulated chamber body that 22b and 22f sealed, be provided with the circuit breaker of section breaker 14A, and together be installed in the earthed switch 14a under the section breaker 14A.By dividing plate 22b, in the gas-insulated chamber body that 22c and 22g sealed, be provided with circuit breaker and the earthed switch 14b of section breaker 14B symmetrically with section breaker 14A and earthed switch 14a.On the downside of this section breaker 14A and 14B circuit breaker, be provided with the circuit breaker of section breaker 14C and 14D, its top electrode is connected on liner 22h and the 22j.
In the low-pressure chamber that on section breaker 14A and 14C left side, is provided, include and be used for section breaker 14A, 14C and earthed switch 14a, the operating mechanism of 14c.In the low-pressure chamber that on the right side of section breaker 14B and 14D, is provided, include and be used for section breaker 14B, 14D and earthed switch 14b, the operating mechanism of 14d.
On dividing plate 22f and 22g, provide liner 22h and 22j symmetrically.Earthed switch 14a, 14b are connected with the upper end of liner 22h and 22j respectively.The lower end of these liners 22h and 22j respectively be installed in section breaker 14C, the earthed switch 14c on the 14D, 14d is connected, it is placed in dividing plate 22f and the formed gas-insulated of the 22g downside chamber body.
In addition, insulating sleeve 7K shown in Figure 1,7L and 7M vertically are applied in the top on the preceding upper lateral part of section breaker chamber body.Insulating sleeve 8K, 8L and 8M vertically are applied in these insulating sleeves 7K, the top on 7L and the 7M right side on the body right upper portion of section breaker chamber.
Also have, on the front end of insulating sleeve 7K, insulating sleeve 9A and the cable 13A shown in providing on bus coupling distribution board 3 central-front side shown in Figure 1.Similarly, insulating sleeve 9B and cable 13B in the central authorities at top between insulating sleeve 7K and the 8K, are provided.Further, insulating sleeve 9C and cable 13C on the rear end at top, are provided.
In Fig. 2, with insulating sleeve 7K, 7L, one of conductor 22K that the 7M lower end is connected be connected with the rear end of section breaker 14A (only showing one of them here).With insulating sleeve 8K, 8L, one of conductor 221 that the 8M lower end is connected be connected with the front end of section breaker 14B (only showing one of them here).
The conductor 22m that is connected with section breaker 14C rear end (only showing one of them here) is provided with by the insulator that is fixed on the lower side panel with the direction perpendicular to accompanying drawing, rise in its left side along distribution box 22, and be connected in insulating sleeve 7G, 7H, the lower end of 7J, its insulating sleeve runs through the top of distribution box 22 respectively.
The conductor 22n that is connected with section breaker 14D front end (only showing one of them here) is provided with by the insulator that is fixed on the lower side panel with the direction perpendicular to accompanying drawing, rise in its left side along distribution box 22, and be connected in insulating sleeve 8G, 8H, the lower end of 8J, its insulating sleeve runs through the top of distribution box 22 respectively.
Be connected to conductor 22o between earthed switch 14d (only showing one of them here) front end and insulating cell 22j (only showing one of them the here) lower end in the insulator top set of being fixed on the distribution box 22, it passes through with the direction perpendicular to accompanying drawing, and with insulating sleeve 9A, 9B, the lower end of 9C is connected, and its insulating sleeve runs through the top of distribution box 22 respectively.
In addition, the insulating sleeve that runs through the top that all are provided on the top and all cables are all packaged by the cable duct (not shown).
Fig. 5 is the local details drawing that amplifies, insulating sleeve 7N, 7O and the 7P of its expression voltage and current instrument transformer dish 1.The figure shows at each installing space in mutually that closely is mounted with insulating sleeve, as the insulating sleeve 7N of the voltage and current instrument transformer dish 1 that on its both sides, is connected with cable, 7O, 7P, these insulating sleeves vertically run through the top of distribution box shown in Figure 1.Each is organized insulating sleeve and also closely is placed in and insulating sleeve 7N, on the top of other distribution box on 7O and the 7P same space.
That is to say that at insulating sleeve 7N, 7O and 7P become R-, under S-and T-one group of blue or green condition mutually, installing space P1 outline in each phase is narrower than insulating sleeve 7N, the Breadth Maximum W of each terminal fitting 7a of 7O and 7P.
Therefore, each phase insulating sleeve 7N, the installing space P2 on 7O and the 7P vertical (left and right directions among Fig. 5) is than insulating sleeve 7N, and the length L of each terminal fitting 7a of 7O and 7P is short.
Also have, on terminal fitting 7a, insulating barrier is formed by epoxy resin, and it is used to be embedded in the outside of the central conductor on the inner core.The two ends of this insulating barrier are quadrangle.Cable connects support 11a and is fixed on the outer surface of each terminal fitting 7a by bolt.
Insulating sleeve 7N, 7O and 7P are overlapped on the above-mentioned quadrangle part mutually with left and right directions shown in Figure 5.Therefore, connect to support at cable between the sidepiece of the cylindrical exterior of 11a and adjacent insulating sleeve terminal fitting 7a, have certain clearance, it is enough to insert in order to clamp the instrument of anchor clamps (not shown), so that insulating sleeve is fixed on the top of distribution box.
In addition, on the surface of terminal fitting 7a, be formed with ground plane.The same earth potential that remains on of the outer surface of each terminal fitting 7a of insulating sleeve with the top of each distribution box.
Under the situation of above-mentioned gas insulated metal enclosed switch, wherein provide the insulating sleeve that is used for 3 phases, it provides horizontal and vertical and closely cooperates and longitudinally run through the top, thus, compare the degree of depth and the width that can reduce distribution box with gas-insulated metal enclosed switchgear with insulating sleeve shown in Figure 12.Therefore, just can reduce to install the required occupation of land space of switch of the present invention.
Also have, under the situation of bus coupling distribution board 3, can settle 5 groups of insulating sleeves altogether in minimum space, and can connect the locational distribution board in the left and right sides by cable with big width, it is by at 4 groups of insulating sleeve 7G of left-right and front-back, 7H, 7J, 7K, 7L, 7M, 8G, 8H, 8J, and 8K, 8L provides one group of insulating sleeve 9A between the 8M, 9B and 9C, and go up in the middle cable 13A, 13B and 13C are installed, in order to connect these insulating sleeve 7G before and after two covers, 7H, 7J, 7K, 7L, 7M and 8G, 8H, 8J, 8K, 8L, insulating sleeve 9A, 9B and 9C on the front and back of 8M.
Have again, can make the length of cable, promptly from the top, top of voltage and current instrument transformer dish 1 to the cable that top provided at incoming panel 6B top, remove cable 13A, 13B and 13C are to equate on three-phase of external each group.Therefore, the insulating sleeve that these cables are included on the three-phase all can exchange, and thus, can be easy to its assembling.
In addition, can also by with the insulating sleeve 9D of No.2 current transformer primary distribution dish 2B on the right side, 9E and 9F similarly in the central authorities of bus coupling distribution board 3 with Z-shaped arrangement insulating sleeve 9A, 9B and 9C, or by with insulating sleeve 9A on the left side, 9B and 9C similarly settle these insulating sleeves 9D, 9E and 9F with a straight line in the central authorities at top, and make cable 13A, the equal in length of 13B and 13C.
Below, Fig. 6 is positioned at the amplification sectional view that cuts the incoming panel 6A on the left side along B-B line shown in Figure 1.The insulating sleeve that stretches out by the insulating sleeve that provides on the top is provided is illustrated in the insulating sleeve in the distribution box under the situation of settling incoming panel 6A on the middle part that is different from gas-insulated metal enclosed switchgear arrangement distribution board shown in Figure 1.
In Fig. 6, U-shaped dividing plate 18a is set on the top of distribution box 18, between dividing plate 18a and top board, form gas-insulated chamber body 18d.Load-side primary circuit section breaker 15A is provided, makes it be applied in the front end of this gas-insulated chamber body 18d.
This primary cut-out 15A is equipped with earthed switch in the top.In the body of air insulation chamber, be mounted with the operating mechanism 15a of primary circuit section breaker 15A and the operating mechanism 15b of earthed switch on the front portion of dividing plate 18a.
One vacuum circuit-breaker 16A also is provided, and top by the downward dividing plate 18b that provides in front side under the dividing plate 18a is provided for it, and the operating mechanism 16a of vacuum circuit-breaker 16A is installed in the front side of dividing plate 18b.
Below vacuum circuit-breaker 16A, mains side primary circuit section breaker 15B is provided, it runs through dividing plate 18a.On the following front side of dividing plate 18b, also be fixed with the operating mechanism 15c of this primary circuit section breaker 15B and the operating mechanism 15d of earthed switch.
Below primary circuit section breaker 15B, lightning arrester 19 is installed, it runs through dividing plate 18b, and the rear end of this lightning arrester 19 is connected on the bottom electrode of primary circuit section breaker 15B of upside.
On top by the downward dividing plate 18c that provides in following rear end of dividing plate 18a, provide tag 17, it runs through airtightly.The upper end of the mains side cable that is made progress by the back down side bottom of distribution box 18 is connected in the lower end of this tag 17.This cable passes the through current transformer CT that is fixed in rear end under the dividing plate 18c.
On the top of distribution box 18, settle insulating sleeve 7A by the front side in proper order with this, 7B and 7C.These insulating sleeves 7A, the lower end of 7B and 7C is connected to by conductor on the top electrode of load-side primary circuit section breaker 15A (only showing one of them here).At these insulating sleeves 7A, in the central authorities of 7B and 7C, provide the cable 11A, 11B and the 11C that constitute first bus shown in Figure 1.
The present invention also can be applicable to gas-insulated metal enclosed switchgear, wherein pass through customer requirements, by providing cable 12A shown in Figure 6 along insulating sleeve shown in the chain-dotted line among Fig. 6,12B, 12C and cable 13A, 13B, 13C is positioned at incoming panel 6A between current transformer primary distribution dish 2A and the section breaker distribution board 4 or bus is coupled between distribution board 3 and the section breaker distribution board 4.
Fig. 7 is along the disconnect amplification longitdinal cross-section diagram of current transformer primary distribution dish 2A of line C-C shown in Figure 1.
In Fig. 7, in the distribution box 23 of this current transformer primary distribution dish 2A, provide the dividing plate 23b that erects in central authorities, at dividing plate 23a before this dividing plate 23b and the dividing plate 23c after this dividing plate 23b.By dividing plate 23a, in the chamber body that 23b and 23c sealed, insulation gas filled.
Qianmen 23d is installed on the front side of distribution box 23,23e and Xiamen 23f to the doorstep are installed on the rear side of distribution box 23.
Also provide Fig. 1, the tag 10A shown in 3 and 4,10B, 10C, the top that it vertically is applied in forward locational distribution box 23 between dividing plate 23a and the 23b makes its cable connect side and is positioned on forward the direction.Provide insulating sleeve 8A, 8B, 8C, it vertically is applied in, and on the position top of distribution box 23 between dividing plate 23b and the 23c.Also show cable 11A shown in Figure 1,11B, 11C, it is positioned at tag 10A, 10B, 10C and insulating sleeve 8A, 8B is on the top between the 8C.
On the upside of dividing plate 23a, earthed switch 16c is installed, it runs through dividing plate 23a.At earthed switch 16c and tag 10A, 10B is connected with conductor 23g (its illustrate one of them) respectively between one of 10C lower end.
Vacuum circuit-breaker 16B also is installed, and it is applied in earthed switch 16c by on the dividing plate 23a on the upper/lower positions.Upper end on vacuum circuit-breaker 16B rear side is connected in the rear end of earthed switch 16c.
Insulating cell 23j also is installed, and it vertically is applied in the dividing plate 23b on the horizontal component under it.Lower end on vacuum circuit-breaker 16B rear side is connected on the upper end of insulating cell 23j.
Section breaker 15C also is installed, and it vertically is applied in vacuum circuit-breaker 16B by the dividing plate 23a on the upper/lower positions.Be connected at the upper terminal on the rear side of section breaker 15C on the lower end of insulating cell 23j.Insulator 23 is installed on the base plate of distribution box 23.Insulator 23k ' is installed on the dorsal part of dividing plate 23b.The insulating sleeve 8A that is provided is provided lower terminal on section breaker 15C rear side, 8B, and on one of 8C, it is by being fixed on the top that conductor 23m on insulator 23k and the 23k ' and 23n are applied in distribution box 23 on the rear side.
Constitute on the right side as shown in figs. 1 and 4 No.3 current transformer primary distribution dish 2C with above-mentioned No.1 current transformer primary distribution dish 2A identically.And at the supermedial current transformer of No.2 as shown in figs. 1 and 4 primary distribution dish 2B, the internal placement of its primary circuit equipment is identical with No.1 current transformer primary distribution dish 2A's.And for dividing plate 23b, the top of dividing plate 23b such as chain-dotted line are shown on forward the direction and extend.Replace insulating sleeve 8A, 8B, 8C can provide insulating sleeve 9D, 9E, 9F, it vertically runs through this part at distribution box 23 tops, the space that promptly has between Width.
As mentioned above, No.2 current transformer primary distribution dish 2B at dividing plate 23b in shape, on the opening at distribution box 23 tops and insulating sleeve 9D, 9E on the installation site of 9F, is different from No.1 current transformer primary distribution dish 2A.
Have, the earthed switch in Fig. 3 is shown in and is used for the No.2 current transformer primary distribution dish 2B insulating sleeve 9D of No.2 current transformer T again, 9E, and on the 9F position adjacent, the current transformer primary distribution dish 2A on itself and the left and right sides, 2C's is identical.Yet, omitted here to the illustrating of these earthed switches, so that avoid making accompanying drawing complicated.
Below, with the gas-insulated metal enclosed switchgear of describing according to second embodiment of the invention.Fig. 8 represents the longitdinal cross-section diagram of this gas-insulated metal enclosed switchgear current transformer primary distribution dish 5Z, and it is corresponding to the gas-insulated metal enclosed switchgear according to first embodiment of the invention of Fig. 7.In Fig. 8, because user's requirement, tag is placed in leaning on the rear section of current transformer primary distribution dish top.
In Fig. 8, provide the insulating sleeve 8X that is used for adjacent distribution box connection use, 8Y, 8Z, it vertically is applied on the forward part of current transformer primary distribution dish 5Z distribution box 24 crown centers.Also provide tag 10X, 10Y, 10Z is used to connect the load-side current transformer, and it vertically is applied in distribution box 24 tops by on the rear section, makes its cable connect side and is positioned on the backward directions.
In Fig. 8, at tag 10X, 10Y, 10Z and insulating sleeve 8X, 8Y shows cable 11X on the top between the 8Z, 11Y, 11Z, it is in order to connect between the equipment on distribution box 24 both sides.
Insulating sleeve 8X on the left side, 8Y under the 8Z, is equipped with U-shaped dividing plate 24a downwards by the top of distribution box 24.Section breaker 15D also is installed, and it flatly is applied on the front portion of dividing plate 24a.
Between the base plate of the base plate of dividing plate 24a and distribution box 24, dividing plate 24b is installed vertically.Vacuum circuit-breaker 16C also is installed, and it is applied on the top of dividing plate 24b.Earthed switch 16c also is installed, and it is applied on the dividing plate 24b on the dividing plate 24b bottom.
The base plate that runs through dividing plate 24a is equipped with insulating cell 24k, and the lower terminal of section breaker 15D rear side is connected on the upper end of insulating cell 24k, and the upper terminal on the vacuum circuit-breaker 16C rear side is connected on the lower end of insulating cell 24k.
The lower terminal of vacuum circuit-breaker 16C rear side is connected on the rear end of earthed switch 16c by conductor 24f, and its (it shows one of them) is also by conductor 24g, 24h, 24j and be connected in tag 10X, 10Y, on one of among the 10Z, the tag that it provided vertically runs through the top by the rear section.
The insulating sleeve 8X of distribution box 24 crown centers by being provided on the rear section is provided, and 8Y is connected on the upper terminal of section breaker 15D rear side one of in the 8Z lower end.Qianmen 24c is installed on the front side of distribution box 24, back door 24d and dividing plate 24e are installed on the rear side of distribution box 24.
In the chamber body and the chamber body between dividing plate 24b and the 24e that are sealed by dividing plate 24a, insulation gas filled.
By constituting the current transformer primary distribution dish of gas-insulated metal enclosed switchgear as mentioned above, the present invention just can be used for receiving equipment, and wherein step-down transformer is positioned on the rear side of gas-insulated metal enclosed switchgear distribution box.
Fig. 9 is the plane graph of expression according to the gas-insulated metal enclosed switchgear of third embodiment of the invention.Figure 10 is the detail dirgram of enlarged section of D-D shown in Figure 9.
In Fig. 9 and Figure 10, shown situation is, wherein the electric power incoming line system is 2CB-1 voltage and current instrument transformer-2CB or 2CB-1 voltage and current instrument transformer-2DS receiving equipment, and it is the same with switch commonly used shown in Figure 11.Be adjacent on the both sides of the voltage and current instrument transformer dish 1A that central authorities install, install current transformer primary distribution dish 5A mutually, 5B, and, incoming panel 6A, 6B are installed respectively on the both sides of 5B at this primary distribution dish 5A.
As Fig. 9 and shown in Figure 10, on the top of voltage and current instrument transformer dish 1A, provide the cable 11R that constitutes first bus, 11S and 11T, and itself and the insulating sleeve 7R that is provided, 7S is connected with 7T, and wherein insulating sleeve vertically runs through the top of voltage and current instrument transformer dish 1A respectively.
At these insulating sleeves 7R, 7S, the front of 7T is equipped with insulating sleeve 8R, and it is connected with the second bus cable 12R.At its rear portion, insulating sleeve 8T is installed, it is connected with the second bus cable 12T.These insulating sleeves 8R and 8T vertically run through the top of voltage and current instrument transformer dish 1A.Because they have common the S first bus insulation sleeve pipe 7S and cable 11S mutually, so can omit second bus insulation sleeve pipe and the cable of S phase.
The lower end of insulating sleeve 7R and 8R is connected on the U phase current mutual inductor 20A of voltage and current instrument transformer, the lower end of insulating sleeve 7T and 8T is connected on the W phase current mutual inductor 20B of voltage and current instrument transformer, and the lower end of insulating sleeve 7S is connected on the mains side of transformer 21 of voltage and current instrument transformer.
In gas-insulated metal enclosed switchgear as mentioned above, can make horizontal space between every group the insulating sleeve slightly be narrower than the Breadth Maximum of each insulating sleeve head shown in Figure 5.Have, the S by eliminating second bus mutually and the S phase of shared first bus just can reduce the connection work of cable again.Therefore, just can reduce the workload of assembly work on the installation site.
Clearly, on the basis of above-mentioned guidance, can carry out various improvement and remodeling to the present invention.Thus, be appreciated that in its scope that all is in follow-up claim, the present invention can be not limited to situation described here and be applied.

Claims (8)

1, a kind of gas-insulated metal enclosed switchgear, it comprises:
One distribution box is used to admit many circuit arrangements;
Three first insulating sleeves, it runs through the outer wall of described distribution box;
Three second insulating sleeves, it runs through the outer wall of described distribution box;
Three cables, its adjacent location in parallel to each other with described distribution box outer wall, its every is connected between one of one of described first insulating sleeve and described second insulating sleeve; It is characterized in that:
Each described first and second insulating sleeve is formed with the head of quadrangle part on its both sides, and connects one of described cable on described quadrangle at least one side partly, in order to connect described circuit arrangement respectively;
The first side side surface of the described quadrangle part of the first phase insulating sleeve of being drawn by described first and second insulating sleeves is provided with adjacent to the second side side surface of the described quadrangle part of the second phase insulating sleeve of being drawn by described first and second insulating sleeves respectively; With
The described quadrangle of the second phase insulating sleeve first side side surface partly of being drawn by described first and second insulating sleeves is provided with adjacent to the first side side surface of the described quadrangle part of the third phase insulating sleeve of being drawn by described first and second insulating sleeves respectively.
2, a kind of gas-insulated metal enclosed switchgear, it comprises:
One distribution box, be used to admit first incoming panel of reception from first electric power of first power-supply system, reception is from the incoming panel of second electric power of second source system, in order to the bus coupling distribution board that receives first inlet wire side bus coupling section breaker, second inlet wire side bus coupling section breaker, first load-side bus coupling section breaker, second load-side bus coupling section breaker with in order to receive the voltage and current instrument transformer dish of voltage and current instrument transformer;
First side of described first inlet wire side bus coupling section breaker is connected on the load-side of described first incoming panel;
First side of described second inlet wire side bus coupling section breaker is connected on the load-side of described second incoming panel;
Second side of described first inlet wire side bus coupling section breaker is connected on second side of described second inlet wire side bus coupling section breaker; It is characterized in that:
First side of described first inlet wire side bus coupling section breaker is connected on the described load-side of described first incoming panel, and is suitable for connecting on the first load-side current transformer;
First side of described second load-side bus coupling section breaker is connected on the described load-side of described second incoming panel by the voltage and current instrument transformer, and is suitable for connecting on the second load-side current transformer;
Second side of described first load-side bus coupling section breaker is connected on second side of described second load-side bus coupling section breaker, and is suitable for connecting on the 3rd load-side current transformer;
The first insulating sleeve group, it is applied on the front side at the described distribution box top on its first side, is used to connect the described load-side of described first incoming panel and described first side of described first inlet wire side bus coupling section breaker;
The second insulating sleeve group, the described front side that it is applied in the described distribution box top on its second side is used to connect the described load-side of described second incoming panel and described first side of described second inlet wire side bus coupling section breaker;
The 3rd insulating sleeve group, the described rear side that it is applied in the described distribution box top on its first side is used to connect the described load-side of described first incoming panel and described first side and the described first load-side current transformer of described first load-side bus coupling section breaker;
The 4th insulating sleeve group, the described rear side that it is applied in the described distribution box top on its second side is used to connect described first side and the described second load-side current transformer of described voltage and current instrument transformer and described second load-side bus coupling section breaker; With
Pentasyllabic quatrain edge sleeve pipe group, the described top that it runs through described distribution box is used to connect described second side and described the 3rd load-side current transformer of described first and second load-side buses coupling section breaker;
Each described first, second, third with the 4th insulating sleeve group by first mutually, second mutually and the third phase insulating sleeve form; With
Wherein in each the described first, second, third and the 4th insulating sleeve group,
Each described first phase, second phase and third phase insulating sleeve are formed with the termination of quadrangle part on its both sides;
The first side side surface of the described quadrangle part of the described first phase insulating sleeve is provided with adjacent to the second side side surface of the described quadrangle part of the described second phase insulating sleeve; With
The first side side surface of the described quadrangle part of the described second phase insulating sleeve is provided with adjacent to the first side side surface of the described quadrangle part of described third phase insulating sleeve.
3, according to the gas-insulated metal enclosed switchgear of claim 2, it is characterized in that:
The second phase insulating sleeve of described pentasyllabic quatrain edge sleeve pipe group is set between the first phase insulating sleeve of the third phase insulating sleeve of the described second insulating sleeve group and described the 3rd insulating sleeve group;
The first phase insulating sleeve of described pentasyllabic quatrain edge sleeve pipe group is set on middle part first side of insulating sleeve mutually in first of the first phase insulating sleeve of the described second insulating sleeve group and the described first insulating sleeve group;
The third phase insulating sleeve of described pentasyllabic quatrain edge sleeve pipe group is set on middle part second side of the third phase insulating sleeve of the third phase insulating sleeve of described the 3rd insulating sleeve group and described the 4th insulating sleeve group.
4, according to the gas-insulated metal enclosed switchgear of claim 2 or 3, it is characterized in that:
Wherein said bus coupling distribution board is equipped with first longitudinal baffle, second longitudinal baffle, the 3rd longitudinal baffle, and lateral partitions, forming the first gas-insulated chamber body between described first and second longitudinal baffles and under the described lateral partitions thus, forming the second gas-insulated chamber body between described first and second longitudinal baffles and on the described lateral partitions, form the 3rd gas-insulated chamber body between the described second and the 3rd longitudinal baffle and under the described lateral partitions, and forming the 4th gas-insulated chamber body between the described second and the 3rd longitudinal baffle and on the described lateral partitions; With
Wherein connect in the distribution board at described bus,
Described first inlet wire side bus coupling section breaker is housed in the described first gas-insulated chamber body,
Described second inlet wire side bus coupling section breaker is housed in the described second gas-insulated chamber body,
Described first load-side bus coupling section breaker is housed in described the 3rd gas-insulated chamber body,
Described second load-side bus coupling section breaker is housed in described the 4th gas-insulated chamber body.
5, according to the gas-insulated metal enclosed switchgear of claim 2 or 3, it is characterized in that:
One of wherein said first and second incoming panels are provided with dividing plate, to form gas-insulated chamber body and following gas-insulated chamber body under the body of gas-insulated chamber on described;
Wherein in one of described first and second incoming panels:
The load-side section breaker is housed in described going up in the body of gas-insulated chamber,
Inlet wire side vacuum circuit-breaker is housed in the described gas-insulated chamber body down,
The mains side section breaker be housed in described inlet wire side vacuum circuit-breaker in the body of described down gas-insulated chamber below,
The top electrode of described inlet wire side vacuum circuit-breaker is connected on the bottom electrode of described load-side section breaker,
The top electrode of described load-side vacuum circuit-breaker is connected on the bottom electrode of described inlet wire side vacuum circuit-breaker; With
Wherein provide insulating sleeve, it runs through the described top of one of described first and second incoming panels, and is connected on the top electrode of described load-side section breaker.
6,, it is characterized in that also comprising a plurality of current transformer primary distribution dishes according to the gas-insulated metal enclosed switchgear of claim 2 or 3:
Wherein said current transformer primary distribution dish is provided with dividing plate, in the formation gas-insulated chamber body and on described following gas-insulated chamber body under the body of gas-insulated chamber;
Wherein in described current transformer primary distribution dish,
The load-side vacuum circuit-breaker be housed in described go up in the body of gas-insulated chamber and
Section breaker is housed in down in the body of gas-insulated chamber,
The top electrode of described section breaker is connected on the bottom electrode of described load-side vacuum circuit-breaker;
Wherein provide insulating sleeve, it runs through the described top of described current transformer primary distribution dish, and is connected on the bottom electrode of described section breaker; With
Wherein provide cable socket, it runs through described top of going up gas-insulated chamber body, and is connected on the top electrode of described vacuum circuit-breaker.
7,, it is characterized in that also comprising a plurality of current transformer primary distribution dishes according to the gas-insulated metal enclosed switchgear of claim 2 or 3:
Wherein said current transformer primary distribution dish is provided with dividing plate, in the formation gas-insulated chamber body and on described following gas-insulated chamber body on the following and rear side of gas-insulated chamber body;
Wherein in described current transformer primary distribution dish,
Section breaker be housed in described go up in the body of gas-insulated chamber and
The load-side vacuum circuit-breaker is housed in the described gas-insulated chamber body down, and the top electrode of described load-side vacuum circuit-breaker is connected on the bottom electrode of described section breaker;
Wherein provide insulating sleeve, it runs through the top of gas-insulated chamber body, and is connected on the top electrode of described section breaker; With
Wherein provide cable socket, it runs through the described top of gas-insulated chamber body down, and is connected on the bottom electrode of described load-side vacuum circuit-breaker.
8, a kind of gas-insulated metal enclosed switchgear is characterized in that comprising:
First incoming panel, in order to receive first power supply of first electric power system, it has the first insulating sleeve group, and this insulating sleeve group runs through the top of described incoming panel distribution box, is used to connect load-side;
Second incoming panel, in order to receive the second source of second electric power system, it has the second insulating sleeve group, and this insulating sleeve group runs through the top of described incoming panel distribution box, is used to connect described load-side;
Voltage and current instrument transformer dish, it is positioned between described first and second incoming panels, in order to receive the voltage and current instrument transformer, it has the third and fourth insulating sleeve group, and this third and fourth insulating sleeve group runs through the top of described voltage and current instrument transformer dish distribution box;
Described the 3rd insulating sleeve is connected in described first and second insulating sleeves by cable;
The first current transformer primary distribution dish, it is positioned between described first incoming panel and the described voltage and current instrument transformer dish, it has pentasyllabic quatrain edge sleeve pipe group, this pentasyllabic quatrain edge sleeve pipe group runs through the top of the described first current transformer primary distribution dish distribution box, in order to give load with feeding power;
The second current transformer primary distribution dish, it is positioned between described second incoming panel and the described voltage and current instrument transformer dish, it has the 6th insulating sleeve group, the 6th insulating sleeve group runs through the top of the described second current transformer primary distribution dish distribution box, in order to give load with feeding power;
Described the 4th insulating sleeve group is connected on the described voltage and current instrument transformer and is connected on the described the 5th and the 6th insulating sleeve;
The first phase insulating sleeve of described the 4th insulating sleeve group is positioned on the front side of described the 3rd insulating sleeve group;
The third phase insulating sleeve of described the 4th insulating sleeve group is positioned on the rear side of described the 3rd insulating sleeve group;
The second phase insulating sleeve of described pentasyllabic quatrain edge sleeve pipe group is connected on the second phase insulating sleeve of the described first insulating sleeve group;
The second phase insulating sleeve of described the 6th insulating sleeve group is connected on the second phase insulating sleeve of the described second insulating sleeve group;
The second phase insulating sleeve of described thus the 3rd insulating sleeve group jointly is used as the second phase insulating sleeve of described the 4th insulating sleeve group;
Wherein each described first, second with the 3rd insulating sleeve group by first mutually, second mutually and the third phase insulating sleeve form; With
Wherein in each described first, second and the 3rd insulating sleeve group;
Each described first phase, second phase and third phase insulating sleeve all are formed with the termination of quadrangle part on its both sides;
The first side side surface of the described quadrangle part of the described first phase insulating sleeve is provided with adjacent to the side surface of described quadrangle part second side of the described second phase insulating sleeve; With
The first side side surface of the described quadrangle part of the described second phase insulating sleeve is provided with adjacent to the side surface of described quadrangle part first side of described third phase insulating sleeve.
CN97117452A 1996-07-18 1997-07-18 Gas-insulated metal enclosed switchgear Expired - Lifetime CN1073298C (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP189158/1996 1996-07-18
JP189158/96 1996-07-18
JP18915896 1996-07-18
JP44987/1997 1997-02-28
JP44987/97 1997-02-28
JP9044987A JPH1084607A (en) 1996-07-18 1997-02-28 Gas-insulated safety enclosed switchgear

Publications (2)

Publication Number Publication Date
CN1174432A CN1174432A (en) 1998-02-25
CN1073298C true CN1073298C (en) 2001-10-17

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CN97117452A Expired - Lifetime CN1073298C (en) 1996-07-18 1997-07-18 Gas-insulated metal enclosed switchgear

Country Status (6)

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JP (1) JPH1084607A (en)
KR (1) KR100271678B1 (en)
CN (1) CN1073298C (en)
ID (1) ID18420A (en)
MY (1) MY131531A (en)
TW (1) TW343401B (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100364826B1 (en) * 2000-12-12 2002-12-16 엘지산전 주식회사 Power switch for gas insulated fused potential transformer
JP4624230B2 (en) * 2005-09-30 2011-02-02 三菱電機株式会社 Gas insulated switchgear
JP4866949B2 (en) * 2009-09-07 2012-02-01 株式会社日立製作所 Vacuum insulated switchgear
WO2013021678A1 (en) * 2011-08-05 2013-02-14 三菱電機株式会社 Gas-insulated switchgear

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4523253A (en) * 1981-03-02 1985-06-11 Siemens Aktiengesellschaft Encapsulated medium-voltage electrical load switching apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4523253A (en) * 1981-03-02 1985-06-11 Siemens Aktiengesellschaft Encapsulated medium-voltage electrical load switching apparatus

Also Published As

Publication number Publication date
TW343401B (en) 1998-10-21
MY131531A (en) 2007-08-30
ID18420A (en) 1998-04-09
JPH1084607A (en) 1998-03-31
KR100271678B1 (en) 2000-11-15
CN1174432A (en) 1998-02-25
KR980012755A (en) 1998-04-30

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