CN201057622Y - Isolating/grounding switch of totally enclosed combined electrical apparatus - Google Patents
Isolating/grounding switch of totally enclosed combined electrical apparatus Download PDFInfo
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- CN201057622Y CN201057622Y CNU2007200641256U CN200720064125U CN201057622Y CN 201057622 Y CN201057622 Y CN 201057622Y CN U2007200641256 U CNU2007200641256 U CN U2007200641256U CN 200720064125 U CN200720064125 U CN 200720064125U CN 201057622 Y CN201057622 Y CN 201057622Y
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Abstract
The utility model discloses a disconnecting/grounding switch of a totally-closed combined electrical apparatus, which belongs to a three phase common tank structure, and is insulated through sulfur hexafluoride gas. The utility model comprises more than one independent air chambers formed by shells, one of the air chambers is internally provided with a high speed grounding switch and a three-position disconnecting/grounding switch, another air chamber is internally provided with a double grounding disconnecting switch at the bus bar side composed of the three-position disconnecting/grounding switch at the bus bar side and an independent grounding switch, so as to form connections between the shells of the air chambers through disc type insulators. The utility model is composed of a plurality of unit parts, an air chamber is shared by the rapid grounding switch and the three-position disconnecting/grounding switch and an electrical transformer assembly to form an independent unit, while another independent unit is formed by the double grounding disconnecting switch gas chamber at the bus bar side; compared with the existing technology, the utility model has the advantages of simple structure, less operating mechanisms, small volume and light weight.
Description
Technical field
The utility model belongs to High-Voltage Electrical Appliances, particularly a kind of fully closed combined electric unit isolating/grounding switch.
Background technology
The fully closed combined electric unit isolating/grounding switch of domestic production at present generally is made up of following four cell mesh: the independently stacked cell (comprising two motor-operating mechanisms) of high speed grounding switch air chamber (comprising an electric spring operating mechanism), one group of isolating switch+winding ground switch (having another name called two station isolating/grounding switch), independently current transformer air chamber, pair earth bus side isolating switch air chambers (comprising three motor-operating mechanisms) independently, its complex structure, operating mechanism is many, volume is bigger.And in the fully closed combined electric unit isolating/grounding switch, the operating mechanism of high speed grounding switch mostly is spring mechanism, it promptly is power source with the cylindrical spring, stretch with the driven by motor cylindrical spring, after cylindrical spring is crossed the dead point, rapid release, drivening rod rotation, and then driving the high speed grounding switch action, there are defectives such as volume is big, operating physical force is big, amount of parts is many in this mechanism; The isolating/grounding switch of two stations, only establish combined floodgate, two positions of separating brake, in order to ensure personal safety, can only on electric, realize fool proof logic blocking, but electrical interlock exists certain problem as artificial misoperation, electric wire virtual connection and the adhesion of secondary component contact etc., its operating mechanism of joining also is the motor drive mechanism of two stations, it is to finish branch by motor-driven screw mandrel and the transmission of feed screw nut's connecting rod, closing operation, there is the defective that is not easy upper boom behind feed screw nut's lower beam in it, it can not operate the isolation of three stations simultaneously, earthed switch, this operating mechanism also exist volume big, operating physical force is big, defectives such as amount of parts is many.
The utility model content
The purpose of this utility model is the defective that exists at above prior art, and a kind of simple in structure, fully closed combined electric unit isolating/grounding switch that volume is little is provided.
Realize that the above-mentioned purpose technical scheme is:
The fully closed combined electric unit isolating/grounding switch belongs to the Threephase common-box structure, pass through sulfur hexafluoride gas-insulating, comprise the more than one independent air chamber that constitutes by housing, be provided with high speed grounding switch, three-station isolating/grounding switch in one of them air chamber, be provided with two earth bus side isolating switches of forming by bus bar side three-station isolating/grounding switch, independent grounding switch in another air chamber, connect by disk insulator between the housing of formation air chamber; Three-phase in two earth bus side isolating switches links to each other with the three-phase of three-station isolating/grounding switch by disk insulator, and the isolation fixed contact assembling of three-station isolating/grounding switch and the stationary contact headstock mount of high speed grounding switch are on first conductor; First conductor and second conductor connect together and extend to the subordinate loop; The outer distribution spring operating mechanism of moving matches with high speed grounding switch, and outer distribution pneumatic operating mechanism matches with bus bar side three-station isolating/grounding switch, independent grounding switch in three-station isolating/grounding switch, the two earth bus side isolating switch respectively.
Current transformer assembling and high speed grounding switch, three-station isolating/grounding switch can also be located in the air chamber jointly in the technical solution of the utility model.
Independent grounding switch in described high speed grounding switch and the two earth bus side isolating switch includes the assembling of stationary contact headstock, the assembling of ground connection slip touch base, movable contact rod; Stationary contact headstock mount is on the conductor of major loop; The assembling of ground connection slip touch base is connected with housing earth connection outward by water conservancy diversion row, insulator inserts; The three-phase moving contact bar of high speed grounding switch links to each other with the electric spring operating mechanism by transmission mechanism, and the independent grounding switch in two earth bus side isolating switches links to each other with motor-operating mechanism by transmission mechanism.
Bus bar side three-station isolating/grounding switch in described three-station isolating/grounding switch and the two earth bus side isolating switch includes the assembling of isolation fixed contact, the assembling of movable contact headstock, the assembling of ground connection fixed contact, and the assembling of movable contact headstock can match with the assembling of isolation fixed contact, the assembling of ground connection fixed contact respectively; Isolate the fixed contact mount on first conductor; Movable contact headstock mount is on the 3rd conductor, and movable contact headstock fit on is provided with the three-phase blade, waters by insulating barrier between the three-phase blade to be installed in together, and the movable contact headstock assembling that wherein is positioned at the side phase is connected with motor-operating mechanism by transmission device; The assembling of ground connection fixed contact is watered dress and is fixed on the 3rd conductor by support, isolation touch base, insulator.
Described electric spring operating mechanism comprises motor assembling, worm reducer assembling, spacing assembling, the assembling of combined floodgate oil bumper, the assembling of separating brake oil bumper, wherein the motor assembling links to each other with the worm reducer assembling by chain, the worm reducer assembling links to each other with spacing assembling by chain, and the driven connecting lever that is fixed on the output shaft matches with assembling of separating brake oil bumper and the assembling of combined floodgate oil bumper respectively.
Described motor-operating mechanism comprise motor, the turbine and worm decelerator that links to each other with motor, with coaxial gear mechanism, cam, the connecting plate of worm gear, gear mechanism and load are joined; Cam matches with the limit switch of motor, connecting plate and auxiliary switch interlock.
The utility model fully closed combined electric unit isolating/grounding switch is made up of a plurality of cell mesh: high speed grounding switch+three-station isolating/grounding switch+shared air chamber of current transformer assembling three constitutes a separate unit, two earth bus side isolating switch air chambers then constitute another separate unit, compared with prior art, have simple in structure, operating mechanism is few, volume is little, lightweight advantage.
In the utility model fully closed combined electric unit isolating/grounding switch, three-station isolating/grounding switch has been realized mechanical interlocking from structure, fundamentally solved misoperation, what adopt simultaneously is the motor-operating mechanism of specially joining the isolation of three stations, earthed switch, and this mechanism's volume is little, simple in structure.What the electric spring operating mechanism of high speed grounding switch adopted is disc spring, thereby has dwindled the volume of mechanism's integral body greatly;
Description of drawings
Fig. 1 is the utility model example structure schematic diagram.
Fig. 2 is the A-A cross section view among Fig. 1.
Fig. 3 is the structural representation of high speed grounding switch 1 among Fig. 2.
Fig. 4 is the B-B cross section view among Fig. 3.
Fig. 5 is the structural representation of stationary contact headstock assembling 6 among Fig. 3.
Fig. 6 is that C among Fig. 5 is to view.
Fig. 7 is the structural representation of ground connection slip touch base assembling 7 among Fig. 3.
Fig. 8 is that D among Fig. 7 is to view.
Fig. 9 is the structural representation of three-station isolating/grounding switch 2 among Fig. 2.
Figure 10 is the E-E cross section view among Fig. 9.
Figure 11 is the structural representation of isolating fixed contact assembling 27, ground connection fixed contact assembling 29 among Fig. 9.
Figure 12 is the F-F cross section view among Figure 11.
Figure 13 is the structural representation of movable contact headstock assembling 28 among Fig. 9.
Figure 14 is the G-G cross section view among Figure 13.
Figure 15 is the structural representation of two earth bus side isolating switches 3 among Fig. 2.
Figure 16 is the H-H cross section view among Figure 15.
Figure 17 is the structural representation of Z type fingertip assembling 68 among Figure 15.
Figure 18 is the I-I cross section view among Figure 17.
Figure 19 is the structural representation of electric spring operating mechanism 4 among Fig. 1.
Figure 20 is the J-J cross section view among Figure 19.
Figure 21 is the structural representation of motor assembling 80 among Figure 20.
Figure 22 is the structural representation of worm reducer assembling 78 among Figure 20.
Figure 23 is the structural representation of spacing assembling 84 among Figure 20.
Figure 24 is the K-K cross-sectional view among Figure 23.
Figure 25 is the structural representation of combined floodgate oil bumper assembling 85 among Figure 20, separating brake oil bumper assembling 86.
Figure 26 is the structural representation of motor-operating mechanism 5 among Fig. 1.
Figure 27 is the L-L cross section view among Figure 26.
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Embodiment
As shown in Figure 1 and Figure 2, this fully closed combined electric unit isolating/grounding switch is the Threephase common-box structure, and three-phase concentrates in the fully closed combined electric unit housing, passes through sulfur hexafluoride gas-insulating.It is mainly formed, and is the three-phase linkage structure entirely by high speed grounding switch 1, three-station isolating/grounding switch 2, two earth bus side isolating switch 3, electric spring operating mechanism 4,5 five parts of motor-operating mechanism.Comprise two independent air chambers that constitute by housing, wherein high speed grounding switch 1, three-station isolating/grounding switch 2 are installed in the air chamber that is made of housing 122, two earth bus side isolating switches 3 of being made up of bus bar side three-station isolating/grounding switch, independent grounding switch are installed in the air chamber that is made of housing 130, connect by disk insulator 125 between the housing 122,130.The three-phase of two earth bus side isolating switches 3 is linked to each other with three-phase moving contact seat assembling 28 in the three-station isolating/grounding switch 2 by disk insulator 125, the 4th conductor 124, the 5th conductor 123, the 3rd conductor 33 by the 8th conductor 67, and the 5th conductor 123 is by current transformer assembling 127 connection the 3rd conductor 33 and the 4th conductors 124.Isolating fixed contact assembling 27 is fixed on first conductor 35 with stationary contact headstock assembling 6.First conductor 35 and second conductor 126 connect together and extend to the subordinate loop.In two earth bus side isolating switches 3, the isolation fixed contact assembling 63 of bus bar side three-station isolating/grounding switch and the stationary contact headstock assembling 53 of independent grounding switch are fixed in the conductor assembling 62, and the ground connection fixed contact assembling 66 of bus bar side three-station isolating/grounding switch is fixed on the support plate 131 that welds together with housing 130.
See Fig. 3, Fig. 4, in housing 122, the three-phase moving contact bar 9 of high speed grounding switch connects together by axle 17, insulating washer 16, drives by move spring operating mechanism 4 of an outer distribution.High speed grounding switch 1 comprises stationary contact headstock assembling 6, ground connection slip touch base assembling 7, movable contact rod 9.Three-phase stationary contact headstock assembling 6 directly is fixed on the conductor of major loop; Ground connection slip touch base assembling 7 is fixed together with water conservancy diversion row 10 by insulation board 8, and the assembling 7 of ground connection slip touch base is connected with earth connection outside the housing by water conservancy diversion row 10, insulator inserts 11; Movable contact rod 9 links to each other with electric spring operating mechanism 4 by axle 17, connecting plate 12, connecting plate 13, axle 15, power transmission shaft 14.Stationary contact headstock assembling 6 is by Fig. 5, shown in Figure 6, comprises that radome 18, fingertip are welded 19, leaf spring 20, touch base 21.14 fingertips are welded 19 along closed circle of touch base 21 compositions, fit together by 14 leaf springs 20, radome 18 again, by screw touch base 21 and radome 18 are fixed together at last.The assembling 7 of ground connection slip touch base comprises connecting plate 22, the 6th conductor 23, ring 24, watchband fingertip 25, collar 26 by Fig. 7, shown in Figure 8.24,1 collars 26 of 25,1 ring of 3 watchband fingertips are contained on the interior circle of the 6th conductor 23, and the end face of the 6th conductor 23 and connecting plate 22 are by screw together.
See Fig. 9, Figure 10, in the three-station isolating/grounding switch, its three-phase blade 47 waters by insulating barrier and adorns 36 and connect together, and drives by an outer distribution pneumatic operating mechanism 5.Three-station isolating/grounding switch comprises isolation fixed contact assembling 27, movable contact headstock assembling 28, ground connection fixed contact assembling 29, and movable contact headstock assembling 28 can match with isolation fixed contact assembling 27, ground connection fixed contact assembling 29 respectively; Isolating fixed contact assembling 27 is fixed on first conductor 35 of major loop by transition joint 34; Movable contact headstock assembling 28 is fixed on the 3rd conductor 33, movable contact headstock assembling 28 is provided with three-phase blade 47, water by insulating barrier between the three-phase blade 47 and adorn 36 and connect together, the movable contact headstock assembling 28 that wherein is positioned at the side phase is connected with motor-operating mechanism 5 by bevel gear 37, bevel gear 38, the power transmission shafts 39 of transmission device; Ground connection fixed contact assembling 29 by support 30, isolate touch base 31, insulator and water and adorn 32 and be fixed on the 3rd conductor 33.The isolation fixed contact assembling 27 among Fig. 9 and the structure of ground connection fixed contact assembling 29 are seen Figure 11, Figure 12, comprise shielding part 40, fingertip 41, axle 42, spring 43, pin 44, axle 45, spring 46.28 fingertips 41 are divided both sides equally and are placed between shielding part 40 inside grooves, and 14 fingertips 41 on every limit connect together by axle 42.Connect together by pin 44, spring 43 between the fingertip 41 on both sides.Connect together by axle 45 between two shielding parts 40.The structure of movable contact headstock assembling 28 is seen Figure 13, Figure 14 among Fig. 9, comprises blade 47, the 7th conductor 48, fingertip seat 49, axle 50, fingertip 51, spring 52.Blade 47 is fixed between the 7th conductor 48 inside grooves by axle 50, two fingertip seats 49, and 27 fingertips 51 and 27 springs 52 evenly place fingertip seat 49 endoporus.
See Figure 15, Figure 16, two earth bus side isolating switches comprise bus bar side three-station isolating/grounding switch, independent grounding switch two parts.These two parts all are the three-phase linkage structure, are enclosed in the housing 130 by disk insulator 125.The bus bar side three-station isolating/grounding switch comprises three isolated fixed contact assemblings 63, movable contact headstock assembling 64, ground connection fixed contact assembling 66, and movable contact headstock assembling 64 can match with isolation fixed contact assembling 63, ground connection fixed contact assembling 66 respectively; Isolate fixed contact assembling 63 and be fixed in the conductor assembling 62, connect together and form a major loop with conductor assembling 62, Z type fingertip assembling the 68, the 8th conductor 67; Movable contact headstock assembling 64 is fixed on the 9th conductor 65, movable contact headstock assembling 64 is provided with three-phase blade 132, water by insulating barrier between the three-phase blade 132 and adorn 71 and connect together, the movable contact headstock assembling 64 that wherein is positioned at the side phase is connected with outer distribution pneumatic operating mechanism 69 by the power transmission shafts 70 of transmission device; Ground connection fixed contact assembling 66 is fixed on the support plate 131 that welds together with housing 130.Described Z type fingertip assembling 68 (referring to Figure 17, Figure 18) comprise fairlead 72, lining 73, stopper ring 74, Z type fingertip 75, spring 76, the tenth conductor 128.Z type fingertip 75 and lining 73, stopper ring 74, fairlead 72 evenly place the interior round side of the tenth conductor 128, connect together by spring 76 between the Z type fingertip 75.The independent grounding switch comprises stationary contact headstock assembling 53, ground connection slip touch base assembling 55, movable contact rod 54; Stationary contact headstock assembling 53 is fixed in the conductor assembling 62 of major loop; The assembling 55 of ground connection slip touch base is connected with housing 130 earth connection outward by water conservancy diversion row 56, insulator inserts; Three-phase moving contact bar 54 links to each other with outer distribution pneumatic operating mechanism 61 by connecting plate 57, connecting plate 58, bevel gear 59, the power transmission shaft 60 of transmission mechanism.
See Figure 19, Figure 20, electric spring operating mechanism 4 is a kind of operating mechanisms that are used for high speed grounding switch on the fully closed combined electric unit.Its main part comprises motor assembling 80, worm reducer assembling 78, spacing assembling 84, combined floodgate oil bumper assembling 85, separating brake oil bumper assembling 86.The transmission of the rotation of motor by chain 79, through the deceleration of worm reducer assembling 78, make disc spring 81 energy storage through chain 77, spacing assembling 84, connecting plate 83, main connecting lever 82 again, the disc spring 81 energy storage back that puts in place discharges naturally simultaneously by output shaft drive load movement.Separating brake and combined floodgate end of a period, the driven connecting lever 87 that is fixed in the spacing assembling 84 matches with assembling 86 of separating brake oil bumper and combined floodgate oil bumper assembling 85 respectively, and the connecting plate 94 that is fixed in the spacing assembling 84 drives auxiliary switch 129 rotation switchings.
Motor assembling 80 (referring to Figure 21) among Figure 19 comprise motor 88, sprocket wheel 89, support 90.Sprocket wheel 89 is connected on the power transmission shaft of motor 88, by screw on support 90.
Worm reducer assembling 78 (referring to Figure 22) among Figure 19 comprise sprocket wheel 91, reduction box 92, sprocket wheel 93.Sprocket wheel 91 is fixed on the front of reduction box 92, and sprocket wheel 93 is fixed on the right flank of reduction box 92.
Spacing assembling 84 among Figure 19 (referring to Figure 23, Figure 24) comprises connecting plate 94, output shaft 95, sprocket wheel 96, pin 97, snap close 98.Connecting plate 94 is connected on the output shaft 95 by pin, and two snap closes 98 connect together by spring.
Combined floodgate oil bumper assembling 85 among Figure 19, separating brake oil bumper assembling 86 (referring to Figure 25) comprise piston 99, flange 100, lubricating cup 101, oil 102.Piston 99 passes the inner chamber that flange 100 places lubricating cup 101, and flange 100 is fixed together by screw and lubricating cup 101.
See Figure 26, Figure 27, motor-operating mechanism is a kind of operating mechanism that is used for three-station on the fully closed combined electric unit.Its main body running part comprises chain 103, motor 104, worm screw 105, worm gear 106, gear 107, bevel gear 108, bevel gear 109.The deceleration of the transmission of the rotation of motor 104 by chain 103, worm gear 106 worm screws 105, drive load movements through gear 107, bevel gear 108, bevel gear 109 at last.Motor 104 is fixed on by rebound 113 on the mounting panel 114 of mechanism, and the output shaft on the motor 104 connects together with the sprocket wheel 111 that is enclosed within on the worm screw 105 by sprocket wheel 112, chain 103.Worm gear 106, gear 107, cam 115 connect together by main shaft 110, when electric operating is about to combined floodgate or separating brake position, cam 115 on the main shaft 110 promotes corresponding limit switch and switches, make motor 104 outages, the connecting plate 120 that is fixed on the main shaft 110 drives auxiliary switch 121 rotation switchings.On axle 117, insert handle, by being contained in the rotation of axle 117 upper sprocket wheels 116, drive worm screws 105 through chain 118, sprocket wheel 119 and rotate, thereby can realize manual branch, closing operation.
Operation principle:
The operation principle of high speed grounding switch 1: after electric spring operating mechanism 4 is received operational order, drive power transmission shaft 14, axle 15 and be sleeved on connecting plate 13 half-twists on the axle 15, connecting plate 13 promotion connecting plates 12 and movable contact rod 9 realize branch, closing operation along the center line moving linearly of earthed switch.Close a floodgate and end, movable contact rod 9 is inserted in the stationary contact headstock assembling 6; Otherwise then be grounded the sub-switching operation of switch, separating brake finishes, and in the movable contact rod 9 indentation ground connection slip touch bases assembling 7, guaranteeing has sufficient insulation distance between the earthed switch fracture.
The operation principle of three-station isolating/grounding switch 2: the divide-shut brake of (one) tri-station isolating switch: when blade 47 mediates, after motor-operating mechanism 5 is received and is isolated the closing operation order, the motor-operating mechanism main shaft turns clockwise 270 ° and drives blades 47 by power transmission shafts 39, bevel gear 38 and the bevel gear 37 that connects and turn clockwise 90 °, isolates fixed contacts assembling 27 and realizes the isolating switch closing operations thereby blade 47 inserts.Otherwise then realize the sub-switching operation of isolating switch.The divide-shut brake of (two) three station earthed switches: when blade 47 mediates, after motor-operating mechanism 5 is received the contact of earth operational order, the rotation of motor-operating mechanism spindle axis counterclockwise drives blade 47 by power transmission shaft 39, bevel gear 38 and the bevel gear 37 that connects for 270 ° and is rotated counterclockwise 90 °, is grounded the switch closing operation thereby blade 47 inserts ground connection fixed contact assembling 29.Otherwise then be grounded the sub-switching operation of switch.
The operation principle of two earth bus side isolating switches 3: the divide-shut brake of (one) bus bar side tri-station isolating switch: when blade 132 mediates, after motor-operating mechanism 69 is received and is isolated the closing operation order, the rotation of motor-operating mechanism spindle axis counterclockwise drives blade 132 by the power transmission shaft 70 that connects for 270 ° and is rotated counterclockwise 90 °, realizes the isolating switch closing operation thereby blade 132 inserts isolation fixed contact assembling 63.Otherwise then realize the sub-switching operation of isolating switch.(2) divide-shut brake of bus bar side three station earthed switches: when blade 132 mediates, after motor-operating mechanism 69 is received the contact of earth operational order, the motor-operating mechanism main shaft turns clockwise 270 ° and drives blades by the power transmission shafts 70 that connect and turn clockwise 90 °, is grounded the switch closing operation thereby blade 132 inserts ground connection fixed contacts assembling 66.Otherwise then be grounded the sub-switching operation of switch.(3) divide-shut brake of independent grounding switch: after motor-operating mechanism 61 is received operational order, drive power transmission shaft 60, bevel gear 59 and connecting plate 58 half-twists, connecting plate 57 promotes the center line moving linearly of movable contact rod 54 along earthed switch, realizes branch, closing operation.Close a floodgate and end, movable contact rod 54 is inserted in the stationary contact headstock assembling 53; Otherwise then be grounded the sub-switching operation of switch, separating brake finishes, and in the movable contact rod 54 indentation ground connection slip touch bases assembling 55, guaranteeing has sufficient insulation distance between the earthed switch fracture.
The operation principle of electric spring operating mechanism 4: electric spring operating mechanism 4 be utilize the transmission of the rotation of motor 88 by chain 79, through the deceleration of worm reducer assembling 78, make disc spring 81 energy storage through chain 79, spacing assembling 84, connecting plate 83, main connecting lever 82 again, drive switch when disc spring 81 releases energy and close a floodgate fast or separating brake.In electric switch-on when operation,, contactor control electrical power counterclockwise rotates, and by chain 79, worm reducer assembling 78, chain 77, spacing assembling 84, connecting plate 83, main connecting lever 82 is clockwise rotated, thereby drives disc spring 81 energy storage.After disc spring 81 energy storage put in place, release energy, drive high speed grounding switch by output shaft 95 and close a floodgate; The motion of closing a floodgate closes on when finishing, and driven connecting lever 87 contacts with combined floodgate oil bumper 85 and slows down; The connecting plate 94 that is fixed on the output shaft 95 drives auxiliary switch 129 rotation switchings.When sub-switching operation, the motion process of each several part is identical with electric switch-on, and main connecting lever 82 clockwise rotates, thereby drives disc spring 81 energy storage, and other directions of motion are opposite.The final stage of separating brake, the opposite side of driven connecting lever 87 contact with separating brake oil bumper 86 speed are reduced.
Generally speaking, the snap-action branch, close a floodgate by electronic realization, in case of necessity also manually energy storage realize dividing fast, closing, this need insert manually operated handle on the pin of motor output shaft, in accordance with regulations direction continuously rotation get final product.Manually and electronicly realize interlocking by electromagnetic lock, that is: electric motor loop outage manually the time can not be carried out electric operating.
The operation principle of motor-operating mechanism 5: motor-operating mechanism 5 is in gate-dividing state, when the tri-station isolating switch switching signal triggers, motor 104 energisings are rotated counterclockwise, slow down through gear 107 and worm screw 105 worm gears 106, drive main shaft 110 and axle and go up each parts clockwise direction rotation, drive tri-station isolating switchs by bevel gear 109 and close a floodgate.When the tri-station isolating switch sub-gate signal triggered, motor 104 backward rotation realized separating brake.
Motor-operating mechanism 5 is in gate-dividing state, when three station earthed switch switching signals trigger, motor 104 energisings turn clockwise, slow down through gear 107 and worm screw 105 worm gears 106, drive main shaft 110 and axle are gone up each parts and are counterclockwise rotated, and drive three station earthed switches by bevel gear 109 and close a floodgate.When three station earthed switch sub-gate signals triggered, motor 104 backward rotation realized separating brake.
The rotating of motor 104 utilizes two contactors to control and interlocking, the adhesive action of can not switching on simultaneously of two contactors.When electric operating was about to combined floodgate or separating brake position, the cam 115 on the main shaft 110 promoted corresponding limit switch and switches, and made motor 104 outages; The connecting plate 120 that is fixed on the main shaft 110 drives auxiliary switch 121 rotation switchings.Axle 117, sprocket wheel 116, chain 118, sprocket wheel 119, worm screw 105 systems are used for inserting where necessary that handle manually divides, closing operation.Electromagnetic lock is used for realizing manually and electronic interlocking, that is: can not be electronic manually the time, and can not be manual when electronic.
Claims (6)
1. fully closed combined electric unit isolating/grounding switch, belong to the Threephase common-box structure, pass through sulfur hexafluoride gas-insulating, it is characterized in that comprising the more than one independent air chamber that constitutes by housing, be provided with high speed grounding switch (1), three-station isolating/grounding switch (2) in one of them air chamber, be provided with two earth bus side isolating switches (3) of forming by bus bar side three-station isolating/grounding switch, independent grounding switch in another air chamber, connect by disk insulator (125) between the housing of formation air chamber; Three-phase in two earth bus side isolating switches (3) links to each other with the three-phase of three-station isolating/grounding switch (2) by disk insulator (125), and the isolation fixed contact assembling (27) of three-station isolating/grounding switch (2) is fixed on first conductor (35) with the stationary contact headstock assembling (6) of high speed grounding switch (1); First conductor (35) connects together with second conductor (126) and extends to the subordinate loop; The outer distribution spring operating mechanism (4) of moving matches with high speed grounding switch (1), and outer distribution pneumatic operating mechanism (5) matches with bus bar side three-station isolating/grounding switch, independent grounding switch in three-station isolating/grounding switch (2), the two earth bus side isolating switches (3) respectively.
2. fully closed combined electric unit isolating/grounding switch according to claim 1, it is characterized in that also comprising current transformer assembling (127), current transformer assembling (127) is located in the air chamber jointly with high speed grounding switch (1), three-station isolating/grounding switch (2).
3. fully closed combined electric unit isolating/grounding switch according to claim 1 and 2 is characterized in that the independent grounding switch in described high speed grounding switch (1) and the two earth bus side isolating switch includes stationary contact headstock assembling (6), the assembling of ground connection slip touch base (7), movable contact rod (9); Stationary contact headstock assembling (6) is fixed on the conductor of major loop; Ground connection slip touch base assembling (7) is connected with housing earth connection outward by water conservancy diversion row (10), insulator inserts (11); The three-phase moving contact bar (9) of high speed grounding switch (1) links to each other with electric spring operating mechanism (4) by transmission mechanism, and the independent grounding switch in two earth bus side isolating switches links to each other with motor-operating mechanism (61) by transmission mechanism.
4. fully closed combined electric unit isolating/grounding switch according to claim 1 and 2, it is characterized in that the bus bar side three-station isolating/grounding switch in described three-station isolating/grounding switch and the two earth bus side isolating switch (3) includes isolation fixed contact assembling (27), movable contact headstock assembling (28), ground connection fixed contact assembling (29), movable contact headstock assembling (28) can match with isolation fixed contact assembling (27), ground connection fixed contact assembling (29) respectively; Isolating fixed contact assembling (27) is fixed on first conductor (35); Movable contact headstock assembling (28) is fixed on the 3rd conductor (33), movable contact headstock assembling (28) is provided with three-phase blade (47), water dress (36) by insulating barrier between the three-phase blade (47) and connect together, the movable contact headstock assembling (28) that wherein is positioned at the side phase is connected with motor-operating mechanism (5) by transmission device; Ground connection fixed contact assembling (29) is watered dress (32) and is fixed on the 3rd conductor (33) by support (30), isolation touch base (31), insulator.
5. fully closed combined electric unit isolating/grounding switch according to claim 1 and 2, it is characterized in that described electric spring operating mechanism (4) comprises motor assembling (80), worm reducer assembling (78), spacing assembling (84), combined floodgate oil bumper assembling (85), separating brake oil bumper assembling (86), wherein motor assembling (80) links to each other with worm reducer assembling (78) by chain (79), worm reducer assembling (78) links to each other with spacing assembling (84) by chain (77), and the driven connecting lever (87) that is fixed on the output shaft (95) matches with separating brake oil bumper assembling (86) and combined floodgate oil bumper assembling (85) respectively.
6. fully closed combined electric unit isolating/grounding switch according to claim 1 and 2, it is characterized in that worm gear (106) worm screw (105) reducing gear that described motor-operating mechanism (5) comprises motor (104), links to each other with motor, with coaxial gear mechanism, cam (115), the connecting plate (120) of worm gear (106), gear mechanism and load are joined; Cam (115) matches with the limit switch of motor, connecting plate (120) and auxiliary switch (121) interlock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200641256U CN201057622Y (en) | 2007-08-10 | 2007-08-10 | Isolating/grounding switch of totally enclosed combined electrical apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200641256U CN201057622Y (en) | 2007-08-10 | 2007-08-10 | Isolating/grounding switch of totally enclosed combined electrical apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201057622Y true CN201057622Y (en) | 2008-05-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200641256U Expired - Fee Related CN201057622Y (en) | 2007-08-10 | 2007-08-10 | Isolating/grounding switch of totally enclosed combined electrical apparatus |
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| Country | Link |
|---|---|
| CN (1) | CN201057622Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101515518A (en) * | 2009-02-14 | 2009-08-26 | 魏巍 | Combined electrical apparatus isolation earthing switch operating mechanism |
| CN101989733A (en) * | 2010-10-22 | 2011-03-23 | 中国西电电气股份有限公司 | Composite high-voltage combined electric appliance |
| CN102361227A (en) * | 2011-07-18 | 2012-02-22 | 句容华源电器设备有限公司 | High-voltage combined electric appliance |
| CN101789327B (en) * | 2009-01-22 | 2013-04-24 | 福建东方电器有限公司 | Combined appliance of indoor high-voltage vacuum load switch and high-voltage fuse |
| WO2015043460A1 (en) * | 2013-09-24 | 2015-04-02 | 国家电网公司 | High-speed grounding switch and grounding switch assembly unit composed thereof |
| CN109149432A (en) * | 2017-06-28 | 2019-01-04 | 河南平芝高压开关有限公司 | A kind of gas-insulating and fully-enclosed combined electrical apparatus and its isolation, earthing switch equipment |
| CN112582233A (en) * | 2020-12-23 | 2021-03-30 | 何申 | Three-station plastic shell switch |
| CN113035627A (en) * | 2021-03-29 | 2021-06-25 | 山东泰开电力开关有限公司 | Single box-separating type linear three-position switch structure and using method thereof |
| CN114649161A (en) * | 2021-12-16 | 2022-06-21 | 河南平高电气股份有限公司 | Three-station isolation grounding switch and isolation static contact |
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2007
- 2007-08-10 CN CNU2007200641256U patent/CN201057622Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101789327B (en) * | 2009-01-22 | 2013-04-24 | 福建东方电器有限公司 | Combined appliance of indoor high-voltage vacuum load switch and high-voltage fuse |
| CN101515518A (en) * | 2009-02-14 | 2009-08-26 | 魏巍 | Combined electrical apparatus isolation earthing switch operating mechanism |
| CN101515518B (en) * | 2009-02-14 | 2014-04-16 | 魏巍 | Combined electrical apparatus isolation earthing switch operating mechanism |
| CN101989733A (en) * | 2010-10-22 | 2011-03-23 | 中国西电电气股份有限公司 | Composite high-voltage combined electric appliance |
| CN101989733B (en) * | 2010-10-22 | 2012-10-10 | 中国西电电气股份有限公司 | Composite high-voltage combined electric appliance |
| CN102361227A (en) * | 2011-07-18 | 2012-02-22 | 句容华源电器设备有限公司 | High-voltage combined electric appliance |
| WO2015043460A1 (en) * | 2013-09-24 | 2015-04-02 | 国家电网公司 | High-speed grounding switch and grounding switch assembly unit composed thereof |
| CN109149432A (en) * | 2017-06-28 | 2019-01-04 | 河南平芝高压开关有限公司 | A kind of gas-insulating and fully-enclosed combined electrical apparatus and its isolation, earthing switch equipment |
| CN112582233A (en) * | 2020-12-23 | 2021-03-30 | 何申 | Three-station plastic shell switch |
| CN113035627A (en) * | 2021-03-29 | 2021-06-25 | 山东泰开电力开关有限公司 | Single box-separating type linear three-position switch structure and using method thereof |
| CN113035627B (en) * | 2021-03-29 | 2023-12-29 | 山东泰开电力开关有限公司 | Single-body split-box type linear three-position switch structure and use method thereof |
| CN114649161A (en) * | 2021-12-16 | 2022-06-21 | 河南平高电气股份有限公司 | Three-station isolation grounding switch and isolation static contact |
| CN114649161B (en) * | 2021-12-16 | 2024-04-05 | 河南平高电气股份有限公司 | Three-station isolation grounding switch and isolation static contact |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080507 Termination date: 20100810 |