Switch apparatus having voltage transformer or lightning arrester on busbar side
The invention belongs to power product technical field for switchgear technical field with bus bar side voltage transformer or arrester, a kind of specifically related to gas-insulated switchgear technical field, more particularly to gas-insulated switchgear with bus bar side voltage transformer or arrester.Background technology has gathered the cabinet types such as standard feeder line, circuit metering, bus section, bus joint in existing classical electric railway transformer station.Standard inlet wire refuse or feeder cabinet be it is most basic in transformer station refuse type, as shown in Figure 1.Need voltage transformer in transformer station circuit is measured and protected, the bus bar side and feeder line side for supply line have such demand, measurement and protection for circuit.In existing classical transformer station, the metering of main bus-bar and defencive function generally are refused to be implemented separately with standard metering, as shown in Figure 2；The function of measuring of feeder line side is typically merged in the breaker chamber that standard feeder line is refused, as shown in Figure 1.The raising realized with safe operation; client increasingly improves for the safe operation requirement of switchgear; failure for switchgear does not require nothing more than the ability of fast reaction; the ability for having protection switch equipment is required simultaneously; such as ability of overcurrent and overvoltage 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 wall bushing.Bus socket is used to connect main bus-bar and realization and the connection of other switchgears；Branch bar is used to shunt from main bus-bar and by feedback
Line three-station is connected with feeder line side, the connection control that feeder line three-station is used to realize between branch bar and feeder line, including connection, three kinds of states of isolation and ground connection.Breaker chamber 2100 includes breaker, current transformer, voltage transformer, cable socket and connecting copper bar.Breaker be used to realizing feeder line side line road cut-off and close, voltage transformer and current transformer are used to realizing the measurement of feeder line side and protection etc..The connection of cable socket is arranged using " one " font, copper bar connection.Shown cable vault 3100 is arranged on bottom surface, bus-bar room 1100 is installed on cable vault 3100, the Room of breaker 2100 is placed on bus-bar 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 assembled in sequence, it is easy to operate.Fig. 2 is that an existing bus measures the structural representation refused, 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 voltage transformer, arrester socket and arrester, main busbar and branch's connecting copper bar.Bus socket, main busbar, branch's copper bar, voltage transformer isolating device, voltage transformer socket are connected with each other, and pass through voltage transformer socket grafting voltage transformer；Bus socket, main busbar, branch's copper bar, connecting copper bar and arrester socket are connected, and pass through arrester socket plug-in arrester；Realize metering and overvoltage protection of bus bar side voltage etc..Bus socket is connected with main busbar, 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, pushes work violently easy.With society, it is economical continue to develop, the increasing of the complexity of engineering construction, intelligentized requires more and more higher at user's switching devices miniaturization, Mian Victoria shields.Middle pressure field is especially in 35kV voltage class, and it is larger that the conventional switch using air as exhausted Edge media refuses universal volume（Refuse wide not less than 1200mm, volume is typically no less than 7m), heavier-weight（Typically no less than 2t), operating difficulties can not especially meet the use requirement under the severe environmental conditions such as High aititude, humidity, filth.Under this background, formula gas-insulated switch is refused to refuse increasingly to be caused extensive concern.Refuse
Formula Cubicle Gas-Insulated Switchgear（Cubicle Gas-Insulated Switchgear) have the advantages that small volume, lightweight, security are good, reliability is high, adapt to severe environmental conditions under use.Obviously, metering is used alone and refuses to realize that this solution of main bus-bar metering and protection expends that material is more, transformer station's floor space 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 the switchgear of said function.The content of the invention present invention is directed to the deficiency of above-mentioned existing switchgear, a kind of switchgear with bus bar side voltage transformer or arrester is provided, including bus-bar room, breaker chamber, cable vault and low-pressure chamber, cable vault is installed on bottom, bus-bar room and breaker chamber are separately mounted on the framework of cable vault, breaker chamber is placed on bus-bar room, and low-pressure chamber is placed in the front of bus-bar room and breaker chamber, each several part assembled in sequence；Bus-bar room includes feeder line three-station, in addition to voltage transformer or arrester with isolating device；The feeder line three-station includes the station static contact of feeder line three, the station Interposer contact of feeder line three, the station grounding contact of feeder line three, the station moving contact of feeder line three；According to highly preferred embodiment of the present invention, breaker chamber includes arrester.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 includes voltage transformer connecting copper bar, isolating device, isolating device operating mechanism, voltage transformer socket, voltage transformer and voltage transformer ground row, and is linked in sequence.According to highly preferred embodiment of the present invention, the bus-bar room also includes housing, wall bushing, mother
Line socket, main busbar and branch's busbar；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, per pole comprising two branch lines, and a branch 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 Yun Dong Fen Do of the moving contact connect the function of realizing connection, isolate and be grounded with the station static contact of feeder line three, the station Interposer contact of feeder line three, the station grounding contact of feeder line three；Main bus-bar is connected with branch bar, 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 flows out from bus socket, by main bus-bar copper bar and branch's copper bar, it is connected by the station static contact of feeder line three, the station moving contact of feeder line three, the station Interposer contact of feeder line three with wall bushing and breaker chamber, is finally flowed out via cable；When the station of feeder line three is in " isolation " position, three station moving contacts are connected with three station Interposer contacts, and electric energy will be unable to be connected to breaker chamber by wall bushing；When the station of feeder line three is in " ground connection " position, three station moving contacts are connected with three station grounding contacts, feeder assembly ground connection.Main busbar is connected by voltage transformer connecting copper bar, voltage transformer isolating device, voltage transformer socket with voltage transformer, 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, arrester connecting copper bar, voltage transformer connecting copper bar, radiator,
Cable socket, arrester socket, the operating mechanism of voltage transformer connection socket and voltage transformer with isolation knife, voltage transformer isolating device.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；It is connected by wall bushing connecting copper bar with bus-bar room, is sequentially connected by breaker, breaker connecting copper bar, is derived from breaker connecting copper bar as three branched lines.According to highly preferred embodiment of the present invention, a branch is connected copper coin with current transformer, current transformer connecting copper bar, cable socket and cable socket is sequentially connected and is finally connected with cable；Second branch is connected by arrester connecting copper bar with arrester socket, the grafting for arrester；3rd branch is connected by voltage transformer connecting copper bar with breaker connecting copper bar, and is connected by voltage transformer Sang Zuo mechanisms, voltage transformer isolating device with voltage transformer socket, realizes the measurement of feeder line 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 the another most preferred embodiment of the present invention, bus-bar room includes arrester.According to another most preferred embodiment of the present invention, breaker chamber includes voltage transformer.According to highly preferred embodiment of the present invention, the bus-bar room includes housing, wall bushing, the station static contact of feeder line three, 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 arrester socket, bus socket, main busbar, branch's copper bar.The bus-bar room includes the two poles of the earth, per pole comprising two branch lines, and a branch line is malen line side feeder line, and one is main bus-bar arrester line.The function that the motion of moving contact realizes connection, isolates and be grounded with the station static contact of feeder line three, the station Interposer contact of feeder line three, the connection of the station grounding contact of feeder line three respectively.
According to highly preferred embodiment of the present invention, by being connected with branch copper bar, arrester connecting copper bar is connected with arrester socket, and the arrester in final bus-bar room passes through arrester socket grafting；Bus socket is used for the splicing for connecting main bus-bar and switchgear；One end of main bus-bar is connected with feeder branch connecting copper bar, is connected by the station of feeder line three and wall bushing with breaker chamber, realizes feeder line side feeder line function.The switchgear with bus bar side voltage transformer or arrester of the present invention; refuse that appearance and size is identical but integration degree is higher with existing classical feeder line; not only there is branch feeder function; there is main bus-bar metering and defencive function, bus bar side over-voltage protection function, feeder line side function of measuring and feeder line side over-voltage protection function etc. simultaneously, the design of Highgrade integration greatlys save material and floor space；Compact breaker chamber design, can not only meet the bearing requirements of high current while the overvoltage safeguard protection of feeder line side can be realized so that the operation of switchgear is more safe and efficient；And the new switching equipment is simple in construction, easily fabricated, easy to operate..Brief description of the drawings Fig. 1 show the structural representation that existing feeder line is refused；Fig. 2 show the existing structural representation for measuring and refusing；Fig. 3 show the first most preferred embodiment of the present invention, the switchgear structural representation with bus Side voltage transformers, feeder line side arrester and feeder line side voltage transformer；Fig. 4 show the first most preferred embodiment of the present invention, the Mu Xian Shi Knot structure schematic diagrames with bus bar side voltage transformer；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, the switchgear structural representation with bus bar side arrester, feeder line side arrester and feeder line side voltage transformer of the invention；
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 the not switchgear structural representation of ribbon feeder side voltage transformer；Fig. 9 show the 4th most preferred embodiment of the present invention, with bus bar side arrester, feeder line side arrester but the not switchgear structural representation of ribbon feeder side voltage transformer.Embodiment gives the specific descriptions of the optional embodiment of the present invention below with reference to accompanying drawing.Fig. 3 show the first most preferred embodiment of the switchgear with bus bar side voltage transformer or arrester of the present invention, the switchgear structural representation with bus bar side voltage transformer, feeder line side arrester and feeder line side voltage transformer.Including bus-bar room 1000, breaker chamber 2000, cable vault 3000 and low-pressure chamber 4000.Wherein, cable vault 3000 is installed on bottom, bus-bar room 1000 and the Fen Do of breaker chamber 2000 are arranged on the framework of cable vault 3000, breaker chamber 2000 is placed on bus-bar room 1000, low-pressure chamber 4000 is placed in the front of bus-bar room 1000 and breaker chamber 2000, the each several part assembled in sequence, it is easy to operate.What the switch was refused is mainly characterized by bus bar side, and there is the voltage transformer with isolating device and feeder line three-station to be fused in novel bus room 1000, and voltage transformer of the feeder line side with isolating device and arrester and breaker are fused in novel breaker room 2000.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 feeder line side ground connection；The voltage transformer of bus-bar room 1000 can monitor this busbar voltage and state of insulation, and voltage circuit is provided for equipment such as protection, automatics, instrument.Isolating device includes two positions of division and combination, when dividing position, has the insulation distance for meeting regulation requirement and obvious disconnect to indicate between contact, and voltage transformer can be effectively ensured when switch is refused and needs to overhaul or change in inspection
Effective grounding when repairing and changing, so as to realize on-bne repair and replacing, quickly solves failure；When closing position, the electric current under normal loop condition can be carried.Breaker chamber 2000 arrange multi-cable socket for grafting multi-cable meet the demand of high current load, the voltage transformer with isolating device be used for realize monitoring this line voltage distribution and applied to system parallel device（For example examine the same period, checkout voltage, BZT devices etc.）, arrester be used for discharge thunder and lightning or and can discharge power system push violently make overvoltage energy and protection circuit or upstream device from instantaneous overvoltage harm simultaneously and can block afterflow will not cause system earth short circuit.Cable vault 3000 has good cable installing space, and the installation for refusing internal cone type cable for gas-insulated switch is highly beneficial, largely reduces field erected working strength and substantially increases the simplification of on-site cable installation.Fig. 4 show the first most preferred embodiment of the present invention, bus-bar room structural representation with bus bar side voltage transformer, the bus-bar room 1000 includes 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 40, voltage transformer isolating device 41, isolating device operating mechanism 42, voltage transformer socket 43, voltage transformer 44, voltage transformer ground row 45, bus socket 50, main busbar 60, branch's busbar 61.The bus-bar room 1000 includes the two poles of the earth, per pole comprising two branch lines, and a branch line is feeder line side feeder line, and one is the bus bar side metering with isolation features and protective wire.Wherein, voltage transformer connecting copper bar 40, isolating device 41, isolating device Sang Zuo mechanisms 42, voltage transformer socket 43 are the bus bar side voltage transformer device with isolation features of complete set.By the rotation of isolating device operating mechanism 42, drive the Fen Do of isolating device 41 to be connected with voltage transformer connecting copper bar 40 and voltage transformer ground row 45, realize the position divided with closing of connection and the grounding function of voltage transformer, as isolating device.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 switch for the feeder line three-station of complete set, by the motion of moving contact 33 respectively with
Feeder line three-station static contact 30, feeder line three-station Interposer contact 31, feeder line three-station grounding contact 32 connect the function of realizing connection, isolation and ground connection.Bus socket 50 is used for the main bus-bar splicing for connecting main bus-bar 60 and son being refused with other；Simultaneously for connecting branch bar 61 and feeder line three-station, it is connected by wall bushing 20 with breaker chamber 2000, realizes feeder 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 copper bar 60 and branch's copper bar 61, it is connected by feeder line three-station static contact 30, feeder line three-station moving contact 33, feeder line three-station Interposer contact 31 with wall bushing 20 and breaker chamber 2000, is finally flowed out via cable.When feeder line three-station is in, " isolation 〃 positions, three station moving contacts 33 are connected with three station Interposer contacts 31, and electric energy will be unable to be connected to breaker chamber 2000 by wall bushing 20.When feeder line three-station is in " ground connection " position, three station moving contacts 33 are connected with three station grounding contacts 32, feeder assembly ground connection.Main busbar 60 is finally connected by branch's copper bar 61, voltage transformer connecting copper bar 40, voltage transformer isolating device 41, voltage transformer socket 43 with voltage transformer 44; the connection position for the voltage transformer branched line with isolating device that is bus bar side; realize the detection to bus bar side voltage; this busbar voltage and state of insulation can be monitored, voltage circuit is provided for equipment such as protection, automatics, instrument.Isolating device includes tap ground and splice grafting leads to two positions, and can convert isolating device by isolating device operating mechanism 42 is connecting position and ground connection position.When the isolating device 41 of voltage transformer is connected with voltage transformer ground row 45, bus bar side metering device is grounded by earthing bar 45 and housing 10, is the earthing position of voltage transformer branched line of the bus bar side with isolating device.During in ground connection position, there are the insulation distance for meeting regulation requirement and obvious disconnect to indicate between contact, effective grounding when voltage transformer can be effectively ensured in maintenance and replacing when switch is refused and needs to overhaul or change, 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 with feeder line side arrester
Room;The 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 connects copper coin 213, arrester connecting copper bar 214, voltage transformer connecting copper bar 215, radiator 240, cable socket 250, arrester socket 260, Sang Zuo mechanism 280 of the voltage transformer connection socket 270 and voltage transformer with 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.It is connected by wall bushing connecting copper bar 210 with bus-bar room 1000, is sequentially connected by breaker 220, breaker connecting copper bar 211, is derived from breaker connecting copper bar 211 as three branched lines.One branch is connected copper coin 213 with current transformer 230, current transformer connecting copper bar 212, cable socket and cable socket 250 is sequentially connected and is finally connected with cable;Second branch is connected by arrester connecting copper bar 214 with arrester socket 260; for the grafting of arrester, for discharging thunder and lightning or and power system operation overvoltage energy and protection circuit or upstream device can be discharged from instantaneous overvoltage harm while and can block afterflow will not cause system earth short-circuit；3rd branch is connected by voltage transformer connecting copper bar 215 with breaker connecting copper bar 211, and be connected by voltage transformer operating mechanism 280, voltage transformer isolating device 290 with voltage transformer socket 270, the measurement of feeder line side voltage is realized, for monitoring this line voltage distribution and applied to system parallel device（For example examine the same period, checkout voltage, BZT devices etc.）, the isolating device of voltage transformer can isolate with circuit when needed, it is ensured that push the safety of work violently.Radiator 240 is used to improve the heat dispersal situations of breaker chamber 2000, it is ensured that whole switchgear runs the operation of period more efficient stable in high current.Fig. 6 show the second most preferred embodiment of the switchgear with bus bar side voltage transformer or arrester of the present invention, the switchgear with bus bar side arrester, feeder line side arrester and feeder line side voltage transformer；Including main bus-bar room 1300, breaker chamber 2000, cable vault 3000 and low-pressure chamber 4000.Cable vault 3000 is arranged on the bottom, and bus-bar room 1300 and the Fen Do of breaker chamber 2000 are arranged in cable vault 3000, and breaker chamber 2000 is placed on bus-bar room 1300, low pressure
Room 4000 is placed in the front of bus-bar room 1300 and breaker chamber 2000, and 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 in novel bus room 1300.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 feeder line side ground connection；Bus bar side arrester can discharge thunder and lightning or and power system operation overvoltage energy can be discharged, protect bus from instantaneous overvoltage endanger, afterflow can be blocked again, will not cause system earth short circuit.Breaker chamber 2000 equally arrange multi-cable socket for grafting multi-cable meet the demand of high current load, the voltage transformer with isolating device be used for realize monitoring this line voltage distribution and for example examine the same period applied to system parallel device; checkout voltage, BZT devices etc., arrester are used to discharging thunder and lightning or and can discharge power system operation overvoltage energy and protection circuit or upstream device and simultaneously and can block afterflow from instantaneous overvoltage harm and 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 includes housing 310, wall bushing 320, feeder line three-station static contact 330, feeder line three-station Interposer contact 331, feeder line three-station grounding contact 332, feeder line three-station moving contact 333, arrester connecting copper bar 340, point arrester socket 341, the bus socket 350 of arrester 344, main busbar 360, branch's copper bar 361.The bus-bar room 1300 includes the two poles of the earth, per pole comprising two branch lines, and a branch line is feeder line side feeder line, and one is main bus-bar arrester line.Feeder line three-station static contact 330, feeder line three-station Interposer contact 331, feeder line three-station grounding contact 332, feeder line three-station moving contact 333 are the feeder line three-station of complete set, the function of realizing connection by Yun Dong Fen Do and feeder line three-station static contact 330, feeder line three-station Interposer contact 331, feeder line three-station grounding contact 332 connection of moving contact 333, isolate and be grounded.Main busbar 360, branch's copper bar 361, arrester connecting copper bar 340 are connected with arrester socket 341, final bus bar side arrester 344 by the grafting of arrester socket 341, can discharge thunder and lightning or
And power system operation overvoltage energy can be discharged, protect bus to be endangered from instantaneous overvoltage, afterflow can be blocked again, system earth short circuit will not be caused.Bus socket 350 is used to connect main bus-bar 360 and the splicing with other switchgears；One end of main bus-bar 360 is connected with feeder branch connecting copper bar 361, is connected by feeder line three-station and wall bushing with breaker chamber 2000, 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 most preferred embodiment of the switchgear with bus bar side voltage transformer or arrester of the present invention, with bus bar side voltage transformer, feeder line side arrester but the not switchgear of ribbon feeder side voltage transformer；The switchgear 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, breaker chamber 2300 is placed on bus-bar room 1000, low-pressure chamber 4000 is placed in the front of bus-bar room 1000 and breaker chamber 2300, the 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 2300 is related with voltage transformer without the voltage transformer socket 270 and the grade of connecting copper bar 215 shown in Fig. 5 to the difference of the breaker chamber shown in Fig. 5；Other function phases are same, repeat no more.Fig. 9 show the 4th most preferred embodiment of the switchgear with bus bar side voltage transformer or arrester of the present invention, with bus bar side arrester, feeder line side arrester but the not switchgear of ribbon feeder side voltage transformer；The switchgear has bus-bar room 1300, breaker chamber 2300, cable vault 3000 and low-pressure chamber 4000.Wherein, cable vault 3000 is installed on bottom, bus-bar room 1300 and the Fen Do of breaker chamber 2300 are arranged on the framework of cable vault 3000, breaker chamber 2300 is placed on bus-bar room 1300, low-pressure chamber 4000 is placed in the front of bus-bar room 1300 and breaker chamber 2300, the each several part assembled in sequence, it is easy to operate.
The bus-bar room 1300 has identical function with the bus-bar room shown in Fig. 7, repeats no more.Shown breaker chamber 2300 is related without the voltage transformer socket 270 shown in Fig. 5 and the grade of connecting copper bar 215 and voltage transformer to the area Do that the breaker shown in Fig. 5 is.Other function phases are same, and no longer Redundant is stated.Switchgear as described herein is refused for two-photo pole switch; voltage transformer or the fusion of arrester device and feeder switch are in a bus-bar room; existing main bus-bar metering and over-voltage protection function have feeder line side feeder line function again, while the also metering of feeder line side and defencive function etc..But the design is not limited to two-photo pole switch and refused, it is equally useful for single-pole switch and refuses to refuse with threephase switch, principle is similar, repeats no more.Although disclosing presently preferred embodiments of the present invention and accompanying drawing for the purpose of illustration, person skilled in the art without departing from the spirit and scope of the invention and the appended claims, can make various replacements, change and retouch.Therefore, the present invention should not be limited to preferred embodiment and accompanying drawing disclosure of that, protection scope of the present invention using the scope of which is defined in the appended claims as