CN105794059B - Switchgear with bus bar side voltage transformer or arrester - Google Patents

Switchgear with bus bar side voltage transformer or arrester Download PDF

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Publication number
CN105794059B
CN105794059B CN201480065630.5A CN201480065630A CN105794059B CN 105794059 B CN105794059 B CN 105794059B CN 201480065630 A CN201480065630 A CN 201480065630A CN 105794059 B CN105794059 B CN 105794059B
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CN
China
Prior art keywords
bus
feeder line
bar
voltage transformer
arrester
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CN201480065630.5A
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Chinese (zh)
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CN105794059A (en
Inventor
许丽明
杨长洲
杜北江
阙银中
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ABB Technology AG
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ABB T&D Technology AG
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B13/00Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
    • H02B13/02Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
    • H02B13/035Gas-insulated switchgear
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B13/00Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
    • H02B13/02Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
    • H02B13/035Gas-insulated switchgear
    • H02B13/0356Mounting of monitoring devices, e.g. current transformers

Abstract

A kind of switchgear with bus bar side voltage transformer or arrester, the bus-bar room with bus bar side voltage transformer include the voltage transformer system of a set of feeder line three-station system and a cuff isolating device.By feeder line three-station system realize the feeding electric energy of the lateral feeder line side of bus, feeder line side and bus bar side isolate and the ground connection of feeder line side;By voltage transformer this busbar voltage of system monitoring and state of insulation with isolating device, voltage circuit is provided for equipment such as protection, automatics, instrument.Bus-bar room of the bus bar side with arrester includes a set of feeder line three-station system and a set of lightning arrester system.By feeder line three-station system realize the feeding electric energy of the lateral feeder line side of bus, feeder line side and bus bar side isolate and the ground connection of feeder line side;By bus bar side lightning arrester system can discharge thunder and lightning or and power system operation overvoltage energy can be discharged, protect bus to be endangered from instantaneous overvoltage, and can blocks afterflow, and system earth will not be caused short-circuit.

Description

Switchgear with bus bar side voltage transformer or arrester
Technical field
The invention belongs to power product technical field, and in particular to gas-insulated switchgear technical field, more particularly to A kind of gas-insulated switchgear with bus bar side voltage transformer or arrester.
Background technology
In existing classical electric railway transformer station, standard feeder line, circuit metering, bus section, bus are gathered The cabinet types such as joint.Standard incoming line cabinet or feeder cabinet are cabinet types most basic in transformer station, as shown in Figure 1.Needed in transformer station Voltage transformer is measured and protected to circuit, and the bus bar side and feeder line side for supply line have such demand, is used In the measurement and protection of circuit.In existing classical transformer station, the metering of main bus-bar and defencive function generally use standard metering Cabinet is implemented separately, as shown in Figure 2;The function of measuring of feeder line side is typically merged in the breaker chamber of standard feeder cabinet, such as Fig. 1 institutes Show.With the raising that safe operation is realized, safe operation requirement of the client for switchgear increasingly improves, for switchgear Failure do not require nothing more than the ability of fast reaction, while the ability for having protection switch equipment is required, such as overcurrent and overvoltage The ability of protection, therefore fusion bus bar side and the overvoltage of feeder line side and the demand of excess current protective function are also imperative.
Fig. 1 is the structural representation of an existing feeder cabinet, including bus-bar room 1100, breaker chamber 2100, cable vault 3100 and low-pressure chamber 4100.Bus-bar room 1100 includes main bus-bar, bus socket, branch bar and feeder line three-station and through walls Sleeve pipe.Bus socket is used to connect main bus-bar and realizes the connection with other switchgears;Branch bar is used for from main bus-bar point Flow and be connected by feeder line three-station with feeder line side, feeder line three-station is used to realize between branch bar and feeder line Connection control, including connect, isolate and be grounded three kinds of states.It is mutual that breaker chamber 2100 includes breaker, current transformer, voltage Sensor, cable socket and connecting copper bar.Breaker be used for realize feeder line side line road cut-off and close, voltage transformer with electricity Current transformer is used for measurement and protection for realizing feeder line side etc..The connection of cable socket is arranged using " one " font, copper bar connection. Shown cable vault 3100 is arranged on bottom surface, and bus-bar room 1100 is installed on cable vault 3100, and the Room of breaker 2100 is placed in bus On room 1100 and cable vault 3100, low-pressure chamber 4200 is placed in bus-bar room 1100, the front of breaker chamber 2100, each several part order Assembling, it is easy to operate.
Fig. 2 is the structural representation of an existing bus metering cabinet, including bus-bar room 1200, cable vault 3200 and low-pressure chamber 4200.Bus-bar room 1200 mainly includes bus socket, voltage transformer isolating device, voltage transformer socket and mutual induction of voltage Device, arrester socket and arrester, main bus-bar and branch's connecting copper bar.Bus socket, main bus-bar, branch bar, mutual induction of voltage Device isolating device, voltage transformer socket are connected with each other, and pass through voltage transformer socket grafting voltage transformer;Bus socket, Main bus-bar, branch bar, connecting copper bar and arrester socket connect, and pass through arrester socket plug-in arrester;Realize bus bar side The metering of voltage and overvoltage protection etc..Bus socket is connected with main bus-bar, and the splicing of switchgear is realized by bus socket. Shown bus-bar room 1200 is placed on cable vault 3200, and low-pressure chamber 4200 is placed in before bus-bar room 1200 and cable vault 3200, Various pieces assembled in sequence, it is easy to operate.
As society, economic continuous development, the increasing of the complexity of engineering construction, user's switching devices are small-sized Change, non-maintaining, intelligentized require more and more higher.Especially in 35kV voltage class, conventional using air is exhausted in middle pressure field The universal volume of switch cubicle of edge medium is larger (cabinet is wide to be not less than 1200mm, and volume is typically no less than 7m), and heavier-weight is (typically not Less than 2t), operating difficulties, it can not especially meet the requirement under the severe environmental conditions such as High aititude, humidity, filth.At this Under kind background, cabinet type gas insulation switch cabinet is increasingly caused extensive concern.Cabinet type Cubicle Gas-Insulated Switchgear (Cubicle Gas-Insulated Switchgear) has small volume, in light weight, security is good, reliability is high, adapts to The advantages that being used under severe environmental conditions.
Obviously, metering cabinet is used alone and realizes that this solution of main bus-bar metering and protection expends that material is more, power transformation Space of standing is big.Therefore, in order to solve the above problems, it is necessary to a kind of overall compact integrated level it is higher can realize it is same The switchgear of function.
The content of the invention
The present invention is directed to the deficiency of above-mentioned existing switchgear, there is provided a kind of with bus bar side voltage transformer or arrester Switchgear, including bus-bar room, breaker chamber, cable vault and low-pressure chamber, cable vault are installed on bottom, bus-bar room and breaker chamber It is separately mounted on the framework of cable vault, breaker chamber is placed on bus-bar room, and low-pressure chamber is placed in bus-bar room and breaker chamber Front, each several part assembled in sequence;Bus-bar room includes feeder line three-station, in addition to the mutual induction of voltage with isolating device Device or arrester;The feeder line three-station includes the station static contact of feeder line three, the station Interposer contact of feeder line three, feeder line three Station grounding contact, the station moving contact of feeder line three;
According to highly preferred embodiment of the present invention, breaker chamber includes arrester and arrester connecting copper bar;Also include electricity Press transformer connecting copper bar, operating mechanism of the voltage transformer with isolation knife and voltage transformer isolating device.
According to the most preferred embodiment of the present invention, bus-bar room includes the voltage transformer with isolating device.
According to another most preferred embodiment of the present invention, also include voltage transformer in breaker chamber.
Band isolating device voltage transformer include voltage transformer connecting copper bar, isolating device, isolating device operating mechanism, Voltage transformer socket, voltage transformer and voltage transformer ground row, and be linked in sequence.
According to highly preferred embodiment of the present invention, the bus-bar room also includes housing, wall bushing, bus socket, main bus-bar And branch bar;Bus socket is used for the splicing for connecting main bus-bar and switchgear.
According to highly preferred embodiment of the present invention, the bus-bar room includes the two poles of the earth, and two branch lines, a branch are included per pole Line is feeder line side feeder line, and another is the bus bar side metering with isolation features and protective wire.
According to highly preferred embodiment of the present invention, the motion of the moving contact respectively with the station static contact of feeder line three, feeder line three Connection, isolation and the function of ground connection are realized in station Interposer contact, the connection of the station grounding contact of feeder line three;Main bus-bar and branch Bus connects, and is connected by feeder line three-station and wall bushing with breaker chamber, realizes feeder line side feeder line function.
According to highly preferred embodiment of the present invention, when feeder line three-station is in " conjunction " position, electric current is from bus socket stream Go out, by main bus-bar copper bar and branch bar, by the station static contact of feeder line three, the station moving contact of feeder line three, the station of feeder line three Interposer contact is connected with wall bushing and breaker chamber, is finally flowed out via cable;When feeder line three-station is in " isolation " Position, the station moving contact of feeder line three are connected with the station Interposer contact of feeder line three, and electric energy will be unable to be connected to by wall bushing disconnected Road device room;When feeder line three-station is in " ground connection " position, the station moving contact of feeder line three and the station grounding contact of feeder line three It is connected, feeder assembly ground connection.
Main bus-bar passes through voltage transformer connecting copper bar, voltage transformer isolating device, voltage transformer socket and voltage Transformer is connected, for the detection to bus bar side voltage, so as to realize the function of metering and protection;
According to highly preferred embodiment of the present invention, isolating device operating mechanism is used to convert isolating device in connection position and ground connection Position.
According to highly preferred embodiment of the present invention, the breaker chamber include housing, breaker, wall bushing connecting copper bar, Current transformer, breaker connecting copper bar, current transformer connecting copper bar, cable socket connection copper coin, radiator, cable are inserted Seat, arrester socket connect socket with voltage transformer.
According to highly preferred embodiment of the present invention, breaker chamber includes the two poles of the earth, and three branches are included per pole;Pass through wall bushing Connecting copper bar is connected with bus-bar room, is sequentially connected by breaker, breaker connecting copper bar, is from breaker connecting copper bar derivative Three branched lines.
According to highly preferred embodiment of the present invention, a branch inserts with current transformer, current transformer connecting copper bar, cable Seat connection copper coin and cable socket are sequentially connected and are finally connected with cable;Second branch is by arrester connecting copper bar and takes shelter from the thunder Device socket is connected, the grafting for arrester;3rd branch passes through voltage transformer connecting copper bar and breaker connecting copper bar It is connected, and is connected by voltage transformer operating mechanism, voltage transformer isolating device with voltage transformer socket, realizes feeder line The measurement of side voltage and the protection of feeder line side.
According to highly preferred embodiment of the present invention, the breaker chamber also includes radiator, the radiating for breaker chamber.
According to highly preferred embodiment of the present invention, the bus-bar room include housing, wall bushing, the station static contact of feeder line three, It is the station Interposer contact of feeder line three, the station grounding contact of feeder line three, the station moving contact of feeder line three, arrester connecting copper bar, point lightning-arrest Device socket, bus socket, main bus-bar, branch bar.
The bus-bar room includes the two poles of the earth, includes two branch lines per pole, a branch line is feeder line side feeder line, based on one Bus arrester line.
The motion of moving contact is grounded with the station static contact of feeder line three, the station Interposer contact of feeder line three, the station of feeder line three respectively Connection, isolation and the function of ground connection are realized in contact connection.
According to highly preferred embodiment of the present invention, by being connected with branch bar, arrester connecting copper bar and arrester socket Connect, the arrester in final bus-bar room passes through arrester socket grafting;Bus socket is used to connect main bus-bar and switch is set Standby splicing;One end of main bus-bar is connected with feeder branch connecting copper bar, passes through the station of feeder line three and wall bushing and breaker Room connects, and realizes feeder line side feeder line function.
The switchgear with bus bar side voltage transformer or arrester of the present invention, with existing classical feeder cabinet profile chi Very little identical but integration degree is higher, not only with branch feeder function, while has main bus-bar metering and defencive function, bus Side over-voltage protection function, feeder line side function of measuring and feeder line side over-voltage protection function etc., the design of Highgrade integration is significantly Material and space are saved;Compact breaker chamber design, can not only meet high current bearing requirements and meanwhile can be with Realize the overvoltage safeguard protection of feeder line side so that the operation of switchgear is more safe and efficient;And the new switching equipment It is simple in construction, easily fabricated, easy to operate.
Brief description of the drawings
Fig. 1 show the structural representation of existing feeder cabinet;
Fig. 2 show the structural representation of existing metering cabinet;
Fig. 3 show the first most preferred embodiment of the present invention, with bus bar side voltage transformer, feeder line side arrester and feedback The switchgear structural representation of line side voltage transformer;
Fig. 4 show the first most preferred embodiment of the present invention, the bus-bar room structural representation with bus bar side voltage transformer Figure;
Fig. 5 show the first most preferred embodiment of the present invention, the breaker chamber structural representation with feeder line side arrester;
Fig. 6 show the second most preferred embodiment, and of the invention carries bus bar side arrester, feeder line side arrester and feeder line side The switchgear structural representation of voltage transformer;
Fig. 7 show the second most preferred embodiment of the present invention, the bus-bar room structural representation with bus bar side arrester;
Fig. 8 show the 3rd most preferred embodiment of the present invention, with bus bar side voltage transformer, feeder line side arrester but not The switchgear structural representation of ribbon feeder side voltage transformer;
Fig. 9 show the 4th most preferred embodiment of the present invention, band bus bar side arrester, feeder line side arrester but not ribbon feeder The switchgear structural representation of side voltage transformer.
Embodiment
Below with reference to accompanying drawing, the specific descriptions of the optional embodiment of the present invention are given.
Fig. 3 show the first optimal implementation of the switchgear with bus bar side voltage transformer or arrester of the present invention Example, the switchgear structural representation with bus bar side voltage transformer, feeder line side arrester and feeder line side voltage transformer.Bag Include bus-bar room 1000, breaker chamber 2000, cable vault 3000 and low-pressure chamber 4000.Wherein, cable vault 3000 is installed on bottom, female Line room 1000 and breaker chamber 2000 are separately mounted on the framework of cable vault 3000, and breaker chamber 2000 is placed in bus-bar room 1000 On, low-pressure chamber 4000 is placed in the front of bus-bar room 1000 and breaker chamber 2000, each several part assembled in sequence, operation letter Just.
The bus bar side that is mainly characterized by of the switch cubicle has the voltage transformer with isolating device and feeder line three-station It is fused in novel bus room 1000, voltage transformer of the feeder line side with isolating device and arrester and breaker are fused to new In breaker chamber 2000.Feeding electric energy, feeder line side and the mother of the lateral feeder line side of bus are realized by feeder line three-station system The isolation of line side and the ground connection of feeder line side;The voltage transformer of bus-bar room 1000 can monitor this busbar voltage and insulation shape State, voltage circuit is provided for equipment such as protection, automatics, instrument.Isolating device includes two positions of division and combination, divides position When, there are between contact the insulation distance for meeting regulation requirement and obvious disconnect to indicate, when switch cubicle needs to overhaul or changed Effective grounding of the voltage transformer in maintenance and replacing can be effectively ensured, so as to realize on-bne repair and replacing, soon Speed solves failure;When closing position, the electric current under normal loop condition can be carried.Breaker chamber 2000 arranges multi-cable and inserted Seat is used for grafting multi-cable and meets that the needs of high current load, the voltage transformer with isolating device are used to realize this line of monitoring Road voltage and it is used to discharge thunder and lightning applied to system parallel device (such as examine the same period, checkout voltage, BZT devices etc.), arrester Or and can discharge power system operation overvoltage energy and protection circuit or upstream device from instantaneous overvoltage endanger and meanwhile again Afterflow, which can be blocked, will not cause system earth short-circuit.Cable vault 3000 has good cable installing space, for gas-insulated The installation of switch cubicle internal cone type cable is highly beneficial, largely reduces field erected working strength and greatly improves The simplification of on-site cable installation.
Fig. 4 show the first most preferred embodiment of the present invention, the bus-bar room structural representation with bus bar side voltage transformer Figure, the bus-bar room 1000 include housing 10, wall bushing 20, feeder line three-station static contact 30, feeder line three-station Interposer contact 31, feeder line three-station grounding contact 32, feeder line three-station moving contact 33, voltage transformer connecting copper bar 40th, voltage transformer isolating device 41, isolating device operating mechanism 42, voltage transformer socket 43, voltage transformer 44, voltage Transformer earthing bar 45, bus socket 50, main bus-bar 60, branch bar 61.
The bus-bar room 1000 includes the two poles of the earth, and two branch lines are included per pole, and a branch line is feeder line side feeder line, one For the bus bar side metering with isolation features and protective wire.Wherein, voltage transformer connecting copper bar 40, isolating device 41, isolation dress Put operating mechanism 42, the bus bar side voltage transformer device with isolation features that voltage transformer socket 43 is complete set. By the rotation of isolating device operating mechanism 42, drive isolating device 41 mutual with voltage transformer connecting copper bar 40 and voltage respectively Sensor earthing bar 45 connects, and realizes the position divided with closing of connection and the grounding function of voltage transformer, as isolating device.Feedback Line three-station static contact 30, feeder line three-station Interposer contact 31, feeder line three-station grounding contact 32, feeder line three Position switch moving contact 33 switchs for the feeder line three-station of complete set, by the motion of moving contact 33 respectively with feeder line three Line is realized in position switch static contact 30, feeder line three-station Interposer contact 31, the connection of feeder line three-station grounding contact 32 The function of road connection, isolation and ground connection.Bus socket 50 is used to connect main bus-bar 60 and the main bus-bar with other cupboards splices;Together When be used for connect branch bar 61 and feeder line three-station, be connected by wall bushing 20 with breaker chamber 2000, realize present Line side feeder line function.
When feeder line three-station is in " conjunction " position, electric current flows out from bus socket 50, by main bus-bar 60 and branch Bus 61, by the station static contact 30 of feeder line three, the station moving contact 33 of feeder line three, the station Interposer contact 31 of feeder line three and set through walls Pipe 20 is connected with breaker chamber 2000, is finally flowed out via cable.When feeder line three-station is in " isolation " position, feeder line three Station moving contact 33 is connected with the station Interposer contact 31 of feeder line three, and electric energy will be unable to be connected to breaker chamber by wall bushing 20 2000.When feeder line three-station is in " ground connection " position, the station moving contact 33 of feeder line three and the station grounding contact of feeder line three 32 are connected, feeder assembly ground connection.
Main bus-bar 60 passes through branch bar 61, voltage transformer connecting copper bar 40, voltage transformer isolating device 41, voltage Transformer socket 43 is finally connected with voltage transformer 44, for connecing for voltage transformer branched line of the bus bar side with isolating device Logical position, realizes the detection to bus bar side voltage, can monitor this busbar voltage and state of insulation, for protection, automatics, instrument The equipment such as table provide voltage circuit.Isolating device includes tap ground and splice grafting leads to two positions, passes through isolating device operating mechanism 42, which can convert isolating device, is connecting position and ground connection position.When the isolating device 41 of voltage transformer is arranged with voltage transformer ground 45 be connected when, bus bar side metering device is grounded by earthing bar 45 and housing 10, is voltage of the bus bar side with isolating device The earthing position of transformer branched line.During in ground connection position, there is the insulation distance that meets regulation requirement and obvious between contact Mark is disconnected, it is effective when voltage transformer can be effectively ensured in maintenance and replacing when switch cubicle needs to overhaul or changes Ground connection, so as to realize on-bne repair and replacing, quickly solves failure.
Fig. 5 show the first most preferred embodiment of the present invention, the breaker chamber with feeder line side arrester;The breaker Room 2000 includes housing 200, breaker 220, wall bushing connecting copper bar 210, current transformer 230, breaker connecting copper bar 211st, current transformer connecting copper bar 212, cable socket connection copper coin 213, arrester connecting copper bar 214, voltage transformer connect Connect copper bar 215, radiator 240, cable socket 250, arrester socket 260, voltage transformer socket 270 and voltage transformer band The operating mechanism 280 of isolation knife, voltage transformer isolating device 290.
The breaker chamber 2000 includes the two poles of the earth, and three branches are included per pole.Pass through wall bushing connecting copper bar 210 and bus Room 1000 is connected, and is sequentially connected by breaker 220, breaker connecting copper bar 211, is from the derivative of breaker connecting copper bar 211 Three branched lines.One branch is connected copper coin with current transformer 230, current transformer connecting copper bar 212, cable socket 213 and cable socket 250 be sequentially connected and be finally connected with cable;Second branch is by arrester connecting copper bar 214 and takes shelter from the thunder Device socket 260 is connected, for the grafting of arrester, for discharge thunder and lightning or and can discharge power system operation overvoltage energy and Protection circuit or upstream device block afterflow and system earth will not be caused short-circuit from instantaneous overvoltage harm while and can;3rd Individual branch is connected by voltage transformer connecting copper bar 215 with breaker connecting copper bar 211, and is isolated by voltage transformer band The operating mechanism 280 of knife, voltage transformer isolating device 290 are connected with voltage transformer socket 270, realize feeder line side voltage Measurement, for monitoring this line voltage distribution and applied to system parallel device (such as examine the same period, checkout voltage, BZT devices etc.), electricity The isolating device of pressure transformer can isolate with circuit when needed, ensure the safety of operation.Radiator 240 is used to improve open circuit The heat dispersal situations of device room 2000, ensure operation of the whole switchgear in high current operation period more efficient stable.
Fig. 6 show the second optimal implementation of the switchgear with bus bar side voltage transformer or arrester of the present invention Example, the switchgear with bus bar side arrester, feeder line side arrester and feeder line side voltage transformer;Including main bus-bar room 1300th, breaker chamber 2000, cable vault 3000 and low-pressure chamber 4000.Cable vault 3000 is arranged on the bottom, the He of bus-bar room 1300 Breaker chamber 2000 is separately mounted in cable vault 3000, and breaker chamber 2000 is placed on bus-bar room 1300, low-pressure chamber 4000 The front of bus-bar room 1300 and breaker chamber 2000 is placed in, each several part order is installed, easy to operate.
The switch cubicle be mainly characterized by bus bar side arrester and feeder line three-station is fused to novel bus room 1300 In.By feeder line three-station system realize the feeding electric energy of the lateral feeder line side of bus, feeder line side and bus bar side isolate and The ground connection of feeder line side;Bus bar side arrester can discharge thunder and lightning or and can discharge power system operation overvoltage energy, protect bus Endangered from instantaneous overvoltage, and can blocks afterflow, and system earth will not be caused short-circuit.Breaker chamber 2000 equally arranges more Root cable socket is used for grafting multi-cable and meets that the needs of high current load, the voltage transformer with isolating device are used to realize Monitor this line voltage distribution and for example examine the same period, checkout voltage, BZT devices etc. applied to system parallel device, arrester is used to release Put thunder and lightning or and power system operation overvoltage energy and protection circuit or upstream device can be discharged from instantaneous overvoltage harm And can, which blocks afterflow, simultaneously will not cause system earth short-circuit.
Fig. 7 show the second most preferred embodiment of the present invention, the bus-bar room with bus bar side arrester;The bus-bar room 1300 include housing 310, wall bushing 320, the station static contact 330 of feeder line three, the station Interposer contact 331 of feeder line three, feeder line three Station grounding contact 332, the station moving contact 333 of feeder line three, arrester connecting copper bar 340, arrester socket 341, arrester 344 Bus socket 350, main bus-bar 360, branch bar 361.
The bus-bar room 1300 includes the two poles of the earth, and two branch lines are included per pole, and a branch line is feeder line side feeder line, one For main bus-bar arrester line.The station static contact 330 of feeder line three, the station Interposer contact 331 of feeder line three, the station grounding contact of feeder line three 332nd, the station moving contact 333 of feeder line three is the feeder line three-station of complete set, by the motion of moving contact 333 respectively with feedback The station static contact 330 of line three, the station Interposer contact 331 of feeder line three, the connection of the station grounding contact 332 of feeder line three realize that circuit connects The function of connecing, isolate and be grounded.Main bus-bar 360, branch bar 361, arrester connecting copper bar 340 and arrester socket 341 connect Connect, final bus bar side arrester 344 can discharge thunder and lightning or and can discharge power system behaviour by the grafting of arrester socket 341 Make overvoltage energy, protect bus to be endangered from instantaneous overvoltage, and can blocks afterflow, and system earth will not be caused short-circuit.It is female Line socket 350 is used to connect main bus-bar 360 and the splicing with other switchgears;One end of main bus-bar 360 and branch bar 361 Connection, is connected with breaker chamber 2000 by feeder line three-station and wall bushing, realizes feeder line side feeder line function.
Breaker 2000 is identical with the breaker described in Fig. 5, repeats no more.
Fig. 8 show the 3rd optimal implementation of the switchgear with bus bar side voltage transformer or arrester of the present invention Example, with bus bar side voltage transformer, feeder line side arrester but the not switchgear of ribbon feeder side voltage transformer;The switch Equipment has bus-bar room 1000, breaker chamber 2300, cable vault 3000 and low-pressure chamber 4000.Wherein, cable vault 3000 is installed on Bottom, bus-bar room 1000 and breaker chamber 2300 are separately mounted on the framework of cable vault 3000, and breaker chamber 2300 is placed in mother On line room 1000, low-pressure chamber 4000 is placed in the front of bus-bar room 1000 and breaker chamber 2300, each several part assembled in sequence, It is easy to operate.
The bus-bar room 1000 has identical function with the bus-bar room shown in Fig. 4, repeats no more.Shown breaker chamber The difference of breaker chamber shown in 2300 and Fig. 5 is voltage transformer socket 270 and connecting copper bar 215 shown in no Fig. 5 etc. It is related to voltage transformer;Other function phases are same, repeat no more.
Fig. 9 show the 4th optimal implementation of the switchgear with bus bar side voltage transformer or arrester of the present invention Example, with bus bar side arrester, feeder line side arrester but the not switchgear of ribbon feeder side voltage transformer;The switchgear tool There are bus-bar room 1300, breaker chamber 2300, cable vault 3000 and low-pressure chamber 4000.Wherein, cable vault 3000 is installed on bottom, female Line room 1300 and breaker chamber 2300 are separately mounted on the framework of cable vault 3000, and breaker chamber 2300 is placed in bus-bar room 1300 On, low-pressure chamber 4000 is placed in the front of bus-bar room 1300 and breaker chamber 2300, each several part assembled in sequence, operation letter Just.
The bus-bar room 1300 has identical function with the bus-bar room shown in Fig. 7, repeats no more.Shown breaker chamber 2300 differences for being with the breaker shown in Fig. 5 are voltage transformer socket 270 and connecting copper bar 215 shown in no Fig. 5 etc. It is related to voltage transformer.Other function phases are same, repeat no more.
Switchgear as described herein is that two-photo pole switch cabinet, voltage transformer or arrester device and feeder switch fusion exist In one bus-bar room, existing main bus-bar metering and over-voltage protection function have feeder line side feeder line function, while also feeder line side again Metering and defencive function etc..But the design is not limited to two-photo pole switch cabinet, it is equally useful for single-pole switch cabinet and three-phase is opened Cabinet is closed, principle is similar, repeats no more.
Although disclosing presently preferred embodiments of the present invention and accompanying drawing for the purpose of illustration, the people of skilled Member, without departing from the spirit and scope of the invention and the appended claims, various replacements, change and retouching can be made.Therefore, The present invention should not be limited to preferred embodiment and accompanying drawing disclosure of that, and protection scope of the present invention is with appended claim The scope that book is defined is defined.

Claims (17)

1. a kind of switchgear with bus bar side voltage transformer or arrester, including bus-bar room (1000,1300), breaker chamber (2000,2300), cable vault (3000) and low-pressure chamber (4000), it is characterised in that:
Cable vault (3000) is installed on bottom, and bus-bar room (1000,1300) and breaker chamber (2000,2300) are separately mounted to electricity On the framework of cable room (3000), breaker chamber (2000,2300) is placed on bus-bar room (1000,1300), low-pressure chamber (4000) It is placed in the front of bus-bar room (1000,1300) and breaker chamber (2000,2300), each several part assembled in sequence;
Bus-bar room (1000,1300) includes feeder line three-station, in addition to the voltage transformer with isolating device or keeps away Thunder device;
The feeder line three-station includes the station static contact (30) of feeder line three, the station Interposer contact (31) of feeder line three, feeder line three Station grounding contact (32), the station moving contact (33) of feeder line three;
Breaker chamber (2000,2300) includes arrester and arrester connecting copper bar (214);Also include voltage transformer to connect Copper bar (215), voltage transformer operating mechanism (280) and voltage transformer isolating device (290) with isolation knife.
2. the switchgear according to claim 1 with bus bar side voltage transformer or arrester, it is characterised in that:Bus Room (1000) includes the voltage transformer with isolating device.
3. the switchgear according to claim 1 or 2 with bus bar side voltage transformer or arrester, it is characterised in that: Also include voltage transformer in breaker chamber (2000).
4. the switchgear according to claim 2 with bus bar side voltage transformer or arrester, it is characterised in that:Band every From device voltage transformer include voltage transformer connecting copper bar (40), isolating device (41), isolating device operating mechanism (42), Voltage transformer socket (43), voltage transformer (44) and voltage transformer ground row (45), and be linked in sequence.
5. the switchgear with bus bar side voltage transformer or arrester according to claim 2 or 4, it is characterised in that: The bus-bar room (1000) also includes housing (10), wall bushing (20), bus socket (50), main bus-bar (60) and branch bar (61);Bus socket (50) is used for the splicing for connecting main bus-bar (60) and switchgear.
6. the switchgear according to claim 1 or 2 with bus bar side voltage transformer or arrester, it is characterised in that: The bus-bar room (1000) includes the two poles of the earth, includes two branch lines per pole, a branch line is feeder line side feeder line, and another is band The bus bar side metering of isolation features and protective wire.
7. the switchgear according to claim 5 with bus bar side voltage transformer or arrester, it is characterised in that:It is described The motion of the station moving contact (33) of feeder line three respectively with the station static contact (30) of feeder line three, the station Interposer contact (31) of feeder line three, Connection, isolation and the function of ground connection are realized in the connection of the station grounding contact (32) of feeder line three;Main bus-bar (60) and branch bar (61) connect, be connected by feeder line three-station and wall bushing (20) with breaker chamber (2000), realize feeder line side feeder line Function.
8. the switchgear according to claim 7 with bus bar side voltage transformer or arrester, it is characterised in that:Work as feedback Line three-station is in " conjunction " position, and electric current flows out from bus socket (50), by main bus-bar (60) and branch bar (61), By the station static contact (30) of feeder line three, the station moving contact (33) of feeder line three, the station Interposer contact (31) of feeder line three and set through walls Pipe (20) is connected with breaker chamber (2000), is finally flowed out via cable;When feeder line three-station is in " isolation " position, feedback The station moving contact (33) of line three is connected with the station Interposer contact (31) of feeder line three, and electric energy will be unable to connect by wall bushing (20) To breaker chamber (2000);When feeder line three-station is in " ground connection " position, the station moving contact (33) of feeder line three and feeder line Three station grounding contacts (32) are connected, feeder assembly ground connection.
9. the switchgear according to claim 4 with bus bar side voltage transformer or arrester, it is characterised in that:Main mother Line (60) by voltage transformer connecting copper bar (40), voltage transformer isolating device (41), voltage transformer socket (43) with Voltage transformer (44) is connected, for the detection to bus bar side voltage, so as to realize the function of metering and protection;
Isolating device operating mechanism (42) is used to convert isolating device in connection position and ground connection position.
10. the switchgear according to claim 3 with bus bar side voltage transformer or arrester, it is characterised in that:Institute Stating breaker chamber (2000) includes housing (200), breaker (220), wall bushing connecting copper bar (210), current transformer (230), breaker connecting copper bar (211), current transformer connecting copper bar (212), cable socket connection copper coin (213), radiating Device (240), cable socket (250), arrester socket (260), voltage transformer socket (270).
11. the switchgear according to claim 10 with bus bar side voltage transformer or arrester, it is characterised in that:It is disconnected Road device room (2000) includes the two poles of the earth, and three branches are included per pole;By wall bushing connecting copper bar (210) and bus-bar room (1000, 1300) it is connected, is sequentially connected by breaker (220), breaker connecting copper bar (211), spreads out from breaker connecting copper bar (211) Life is three branched lines.
12. the switchgear according to claim 11 with bus bar side voltage transformer or arrester, it is characterised in that:One Individual branch is connected copper coin (213) with current transformer (230), current transformer connecting copper bar (212), cable socket and cable is inserted Seat (250) is sequentially connected finally to be connected with cable;Second branch passes through arrester connecting copper bar (214) and arrester socket (260) it is connected, the grafting for arrester;3rd branch is connected by voltage transformer connecting copper bar (215) with breaker Copper bar (211) is connected, and passes through operating mechanism (280) of the voltage transformer with isolation knife, voltage transformer isolating device (290) It is connected with voltage transformer socket (270), realizes the measurement of feeder line side voltage and the protection of feeder line side.
13. the switchgear according to claim 10 with bus bar side voltage transformer or arrester, it is characterised in that:Institute Stating breaker chamber (2000,2300) also includes radiator (240), the radiating for breaker chamber (2000,2300).
14. the switchgear according to claim 3 with bus bar side voltage transformer or arrester, it is characterised in that:Institute Stating bus-bar room (1300) is included in housing (310), wall bushing (320), the station static contact (330) of feeder line three, the station of feeder line three Between contact (331), the station grounding contact (332) of feeder line three, the station moving contact (333) of feeder line three, arrester connecting copper bar (340), arrester socket (341), bus socket (350), main bus-bar (360), branch bar (361).
15. the switchgear according to claim 3 with bus bar side voltage transformer or arrester, it is characterised in that:Institute State bus-bar room (1300) and include the two poles of the earth, include two branch lines per pole, a branch line is feeder line side feeder line, and one is main bus-bar Arrester line.
16. the switchgear according to claim 14 with bus bar side voltage transformer or arrester, it is characterised in that:Feedback The motion of the station moving contact (333) of line three respectively with the station static contact (330) of feeder line three, the station Interposer contact (331) of feeder line three, Connection, isolation and the function of ground connection are realized in the connection of the station grounding contact (332) of feeder line three.
17. the switchgear according to claim 15 with bus bar side voltage transformer or arrester, it is characterised in that:It is logical Cross and be connected with branch bar (361), arrester connecting copper bar (340) is connected with arrester socket (341), final bus-bar room (1300) arrester in passes through arrester socket (341) grafting;Bus socket (350) be used for connect main bus-bar (360) and The splicing of switchgear;One end of main bus-bar (360) is connected with branch bar (361), by feeder line three-station and through walls Sleeve pipe is connected with breaker chamber (2000), realizes feeder line side feeder line function.
CN201480065630.5A 2014-07-24 2014-07-24 Switchgear with bus bar side voltage transformer or arrester Active CN105794059B (en)

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PCT/CN2014/082891 WO2016011636A1 (en) 2014-07-24 2014-07-24 Switch apparatus having voltage transformer or lightning arrester on busbar side

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112310879A (en) * 2020-10-15 2021-02-02 许继集团有限公司 Pluggable voltage mutual inductance device of gas insulated switchgear and hot-line plugging method

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CN201435552Y (en) * 2009-05-21 2010-03-31 浙江金誉电气有限公司 AC metal enclosed switching equipment
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CN202872241U (en) * 2012-08-14 2013-04-10 Abb技术有限公司 Bus bar chamber with bus bar isolation function and bus bar measuring function

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JP2790892B2 (en) * 1990-03-22 1998-08-27 三菱電機株式会社 Gas insulated switchgear
CN201435552Y (en) * 2009-05-21 2010-03-31 浙江金誉电气有限公司 AC metal enclosed switching equipment
CN201490613U (en) * 2009-06-03 2010-05-26 Abb技术有限公司 Railway switching cabinet of two phases shared box
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WO2016011636A1 (en) 2016-01-28

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