CN203747291U - Isolation grounding switch - Google Patents
Isolation grounding switch Download PDFInfo
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- CN203747291U CN203747291U CN201320851758.7U CN201320851758U CN203747291U CN 203747291 U CN203747291 U CN 203747291U CN 201320851758 U CN201320851758 U CN 201320851758U CN 203747291 U CN203747291 U CN 203747291U
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- isolation
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- 238000002955 isolation Methods 0.000 title claims abstract description 80
- 230000003068 static effect Effects 0.000 claims abstract description 78
- 239000004020 conductor Substances 0.000 claims abstract description 74
- 230000005540 biological transmission Effects 0.000 claims abstract description 62
- 239000012212 insulator Substances 0.000 claims abstract description 53
- 238000009413 insulation Methods 0.000 claims abstract description 52
- 239000002184 metal Substances 0.000 claims abstract description 51
- 239000003822 epoxy resin Substances 0.000 claims description 4
- 229920000647 polyepoxide Polymers 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 238000005299 abrasion Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 description 7
- 241000208199 Buxus sempervirens Species 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The utility model relates to an isolation grounding switch, belonging to the high voltage transmission technical field. The isolation grounding switch comprises a metal casing, an isolation switch, a grounding switch I, a grounding switch II, etc. The isolation switch comprises a body insert, a disc type insulator, a static side conductor, an isolation switch fixed contact, a rack movable contact rod, a gear, and a dynamic side conductor; the two grounding switches respectively comprise a disc type insulator body insert, a dynamic conductor, a grounding switch fixed contact, a grounding switch moving contact, a grounding switch moving contact shielding case, a grounding terminal, a grounding housing and an insulation basin. The isolation grounding switch possesses the characteristics of simple and compact structure, high reliability, etc., can meanwhile perform safe grounding on buses on two sides of fractures of the isolation switch, and reduce contact abrasion in switch on and off operation of the isolation switch and the grounding switches; besides, the moving contact of the isolation switch moves smoothly and reliably, and the moving contacts of the grounding switches can perform grounding rapidly and conveniently; thus the isolation grounding switch is suitable for popularization.
Description
Technical field
The utility model relates to a kind of isolation earthing switch, is specifically related to a kind of Threephase common-box isolation earthing switch for Cubicle Gas-Insulated Switchgear, belongs to high voltage power transmission technical field.
Background technology
Isolation earthing switch is generally used in Cubicle Gas-Insulated Switchgear (GIS) or compound electric (PASS), and it is not an independent product, is conventionally arranged on circuit breaker forward and backward.Common isolation earthing switch mainly contains two kinds in the market: a kind of is traditional three-phase separate core structure, isolating switch is the GIS element separating with earthed switch, they have electric operating mechanism separately, can only realize and closing a floodgate or two kinds of stations of separating brake, this three-phase separate core structure increases the overall dimension of GIS greatly, and manufacturing cost also increases thereupon simultaneously; Another kind Shi Ge manufactory releases Threephase common-box isolation earthing switch in recent years, isolating switch, earthed switch and related elements thereof are all installed in an airtight metal shell, operated by an electric operating mechanism, can realize isolation, combined floodgate, three stations of ground connection simultaneously, realized the function of isolating switch and earthed switch simultaneously, reduce to a great extent the volume of GIS, and improved reliability of operation.The Chinese patent that is 200620079035.X as the patent No. discloses a kind of three station isolation grounding switchs, described three station isolation grounding switchs comprise static contact isolation switch, disk insulator, static contact of grounding switch, moving contact, conductor, radome, insulating bar, shaft seal, housing, it is characterized in that being fixed with isolating switch and earthed switch in same housing, two ends formula moving contact is fixed between isolating switch and earthed switch, moving contact is connected with operating mechanism, and the isolation of isolation earthing switch, combined floodgate, ground connection are by operating mechanism control; Above-mentioned three station isolation grounding switchs have obtained sufficient utilization aborning, but have in use also occurred many problems.Specifically, can not be the both sides while of isolating switch fracture ground connection when above-mentioned three station isolation grounding switchs need line maintenance, an isolation earthing switch need to be respectively installed before and after circuit breaker, the overall dimensions of high pressure GIS is increased, manufacturing cost increases, and contact abrasion is more serious in separating brake, making process.
Summary of the invention
When the technical problems to be solved in the utility model is to provide a kind of simple and compact for structure, line maintenance, keep apart turn-off mouthful both sides simultaneously ground connection, can reduce the isolation earthing switch of contact abrasion, to solve, existing isolation earthing switch volume is large, the isolating switch fracture both sides problem of ground connection simultaneously.
The technical solution of the utility model is: a kind of isolation earthing switch, comprises isolating switch, earthed switch I, three parts of earthed switch II, specifically comprise connecting rod I 1, insulating basin I 2, drier 3, earth terminal II 4, connecting lever II 5, connecting rod II 6, grounding shell II 7, insulating basin II 8, moving contact of grounding switch II 9, moving contact of grounding switch radome II 10, body inserts I 11, disk insulator I 12, static contact of grounding switch II 13, quiet side conductor 14, static contact isolation switch 15, cover plate 16, tooth bar movable feeler lever 17, gear 18, metal shell 19, moving side conductor 20, disk insulator II 21, body inserts II 22, static contact of grounding switch I 23, moving contact of grounding switch I 24, moving contact of grounding switch radome I 25, earth terminal I 26, grounding shell I 27, power transmission shaft I 28, connecting lever I 29, power transmission shaft II 30, shaft seal I 31, operating mechanism case I 32, deadlock lever I 33, shaft seal II 34, deadlock lever II 35, shaft seal III 36, deadlock lever III 37, operating mechanism case II 38, charging connector 39, insulation actuating bar I 40, insulation actuating bar II 41, contact base 42, spring washer 43, metallic shield 44, plum blossom fingertip 45, check ring 46, disk insulator II 21 is installed in the inner chamber on metal shell 19 left sides, body inserts II 22 is arranged in disk insulator II 21, moving side conductor 20 is connected by screw and is arranged in body inserts II 22, in the contact base on moving side conductor 20 left sides, static contact of grounding switch I 23 is installed, in the contact base on moving side conductor 20 the right, tooth bar movable feeler lever 17 and gear 18 are installed, tooth bar movable feeler lever 17 is moving contacts of isolating switch, gear 18 is meshed with tooth bar movable feeler lever 17, and be with carry-over bar movable feeler lever 17 contact or separate with static contact isolation switch 15, gear 18 is arranged in insulation actuating bar I 40, insulation actuating bar I 40 is arranged on metal shell 19 by shaft seal III 36, deadlock lever III 37 is arranged in insulation actuating bar I 40, the rotation of insulation actuating bar I 40 is driven by the transmission mechanism in operating mechanism case II 38, operating mechanism case II 38 is connected by screw and is arranged on metal shell 19, the actuating bar II 41 that insulate is in addition arranged on metal shell 19 by shaft seal II 34, deadlock lever II 35 is arranged in insulation actuating bar II 41, insulation actuating bar II 41 is mainly used in dividing of other two-phase moving contacts of actuating isolating switch and fixed contact, closing operation, static contact isolation switch 15 is arranged in the contact base on quiet side conductor 14 left sides, in the contact base on quiet side conductor 14 the right, static contact of grounding switch II 13 is installed, quiet side conductor 14 is connected by screw and is arranged in body inserts I 11, body inserts I 11 is arranged in disk insulator I 12, and disk insulator I 12 is arranged in the inner chamber on metal shell 19 right sides, insulating basin II 8 is arranged on metal shell 19, earth terminal II 4 is arranged in insulating basin II 8, grounding shell II 7 is connected by screw and is arranged in insulating basin II 8, power transmission shaft II 30 is arranged in grounding shell II 7 by bearing, and be connected with operating mechanism case I 32 by shaft seal 31, operating mechanism case I 32 is connected by screw and is arranged in grounding shell II 7, deadlock lever I 33 is arranged in power transmission shaft II 30, one end of connecting lever II 5 is arranged in power transmission shaft II 30, the other end is connected with connecting rod II 6 by pin, moving contact of grounding switch II 9 is connected with connecting rod II 6 by pin, and be arranged in moving contact of grounding switch radome II 10, moving contact of grounding switch radome II 10 is threaded connection and is arranged in earth terminal II 4, the rotation of power transmission shaft II 30 can drive connecting lever II 5 to rotate, connecting rod II 6 is moved thereupon, and drive moving contact of grounding switch II 9 to move up and down, make moving contact of grounding switch II 9 contact or separate with static contact of grounding switch II 13, insulating basin I 2 is arranged on metal shell 19, earth terminal I 26 is arranged in insulating basin I 2, grounding shell I 27 is connected by screw and is arranged in insulating basin I 2, power transmission shaft I 28 is arranged in grounding shell I 27 by bearing, and be connected with operating mechanism case by shaft seal, one end of connecting lever I 29 is arranged in power transmission shaft I 28, the other end is connected with connecting rod I 1 by pin, moving contact of grounding switch I 24 is connected with connecting rod I 1 by pin, and be arranged in moving contact of grounding switch radome I 25, moving contact of grounding switch radome I 25 is threaded connection and is arranged in earth terminal I 26, the rotation of power transmission shaft I 28 can drive connecting lever I 29 to rotate, connecting rod I 1 is and then motion also, and drive moving contact of grounding switch I 24 to move up and down, make moving contact of grounding switch I 24 contact or separate with static contact of grounding switch I 23.
Described isolating switch comprises body inserts I 11, disk insulator I 12, quiet side conductor 14, static contact isolation switch 15, tooth bar movable feeler lever 17, gear 18, moving side conductor 20, disk insulator II 21, body inserts II 22; When isolating switch closes a floodgate, the path of main circuit current is body inserts I 11, quiet side conductor 14, static contact isolation switch 15, tooth bar movable feeler lever 17, moving side conductor 20, body inserts II 22.
Described earthed switch I comprises disk insulator II 21, body inserts II 22, moving side conductor 20, static contact of grounding switch I 23, moving contact of grounding switch I 24, moving contact of grounding switch radome I 25, earth terminal I 26, grounding shell I 27, insulating basin I 2; When earthed switch I combined floodgate ground connection, the grounded circuit of major loop is body inserts II 22, moving side conductor 20, static contact of grounding switch I 23, moving contact of grounding switch I 24, grounding shell I 27, earth terminal I 26.
Described earthed switch II comprises body inserts I 11, disk insulator I 12, quiet side conductor 14, static contact of grounding switch II 13, moving contact of grounding switch II 9, moving contact of grounding switch radome II 10, earth terminal II 4, insulating basin II 8, grounding shell II 7; When earthed switch II combined floodgate ground connection, the grounded circuit of major loop is body inserts I 11, quiet side conductor 14, static contact of grounding switch II 13, moving contact of grounding switch II 9, grounding shell II 7, earth terminal II 4.
Described static contact of grounding switch II 13, static contact isolation switch 15, static contact of grounding switch I 23 all adopt helical spring contact, and metallic shield separately, and metallic shield is for shielding the impact that each fixed contact is avoided electric field; Metallic shield 44 is threaded connection and is arranged on quiet side conductor 14, and the plum blossom fingertip 45 in metallic shield 44 inner chambers is connected by screw and is arranged on contact base 42, and spring washer 43 and check ring 46 are arranged in plum blossom fingertip 45.
Described insulating basin I 2, insulating basin II 8, disk insulator I 12, disk insulator II 21, insulation actuating bar I 40, insulation actuating bar II 41 are poured with epoxy resin insulating part, in the utility model isolation earthing switch, play insulating effect.
Described deadlock lever I 33, deadlock lever II 35, deadlock lever III 37 are for the utility model isolation earthing switch closing locking, and after locking, isolating switch and earthed switch just cannot carry out closing operation, to prevent that misoperation from causing security incident.
On metal shell 19, be provided with drier 3 and charging connector 39, drier 3 is used for being dried the insulating gas in metal shell 19, and charging connector 39 is used for to the interior SF of metal shell 19
6insulating gas; Cover plate 16 is installed on metal shell 19, when the utility model isolation earthing switch needs internal overhaul, can takes cover plate 16 apart, convenient maintenance.
On metal shell 19 and insulating basin I 2, drier 3, insulating basin II 8, cover plate 16 and charging connector 39 interface everywhere, be equipped with sealing ring, prevent the leakage of insulating gas.
Operation principle of the present utility model is:
1: isolating switch separating brake, earthed switch I separating brake, earthed switch II separating brake operation principle: when the utility model isolation earthing switch does not carry out electric current conduction, now isolating switch, earthed switch I, earthed switch II, while are in separating brake station; Transmission mechanism in operating mechanism case II 38 drives insulation actuating bar I 40 to rotate, the gear 18 being arranged in insulation actuating bar I 40 also and then rotates, gear 18 is meshed with tooth bar movable feeler lever 17, and be with carry-over bar movable feeler lever 17 and static contact isolation switch 15 to be separated, transmission mechanism in operating mechanism case II 38 drives insulation actuating bar I 41 to rotate simultaneously, and moving contact and the fixed contact of other two-phases of actuating isolating switch are separated; Transmission mechanism in operating mechanism case drives power transmission shaft I 28 to rotate, power transmission shaft I 28 drives connecting lever I 29 to rotate, connecting lever I 29 drive link I 1 are moved, and connecting rod I 1 drives moving contact of grounding switch I 24 to move, and moving contact of grounding switch I 24 and static contact of grounding switch I 23 are separated; Transmission mechanism in operating mechanism case I 32 drives power transmission shaft II 30 to rotate, and drive connecting lever II 5 to rotate, connecting lever II 5 drive link II 6 are moved, and connecting rod II 6 drives moving contact of grounding switch II 9 to move, and moving contact of grounding switch II 9 and static contact of grounding switch II are separated.
2: isolating switch combined floodgate, earthed switch I separating brake, earthed switch II separating brake operation principle: when the utility model isolation earthing switch need to carry out electric current conduction, only isolating switch closes a floodgate; Transmission mechanism in operating mechanism case II 38 drives insulation actuating bar I 40 to rotate, the gear 18 being arranged in insulation actuating bar I 40 also and then rotates, gear 18 is meshed with tooth bar movable feeler lever 17, and be with carry-over bar movable feeler lever 17 to contact completely with static contact isolation switch 15, transmission mechanism in operating mechanism case II 38 drives insulation actuating bar I 41 to rotate simultaneously, and the moving contact of other two-phases of actuating isolating switch contacts completely with fixed contact; Transmission mechanism in operating mechanism case drives power transmission shaft I 28 to rotate, power transmission shaft I 28 drives connecting lever I 29 to rotate, connecting lever I 29 drive link I 1 are moved, and connecting rod I 1 drives moving contact of grounding switch I 24 to move, and moving contact of grounding switch I 24 and static contact of grounding switch I 23 are separated; Transmission mechanism in operating mechanism case I 32 drives power transmission shaft II 30 to rotate, and drive connecting lever II 5 to rotate, connecting lever II 5 drive link II 6 are moved, and connecting rod II 6 drives moving contact of grounding switch II 9 to move, and moving contact of grounding switch II 9 and static contact of grounding switch II are separated.
3: isolating switch separating brake, earthed switch I are closed a floodgate, earthed switch II combined floodgate operation principle: when the utility model isolation earthing switch needs line maintenance, earthed switch I and earthed switch II combined floodgate ground connection; Transmission mechanism in operating mechanism case II 38 drives insulation actuating bar I 40 to rotate, the gear 18 being arranged in insulation actuating bar I 40 also and then rotates, gear 18 is meshed with tooth bar movable feeler lever 17, and be with carry-over bar movable feeler lever 17 and static contact isolation switch 15 to be separated, transmission mechanism in operating mechanism case II 38 drives insulation actuating bar I 41 to rotate simultaneously, and moving contact and the fixed contact of other two-phases of actuating isolating switch are separated; Transmission mechanism in operating mechanism case drives power transmission shaft I 28 to rotate, power transmission shaft I 28 drives connecting lever I 29 to rotate, connecting lever I 29 drive link I 1 are moved, and connecting rod I 1 drives moving contact of grounding switch I 24 to move, and moving contact of grounding switch I 24 is contacted completely with static contact of grounding switch I 23; Transmission mechanism in operating mechanism case I 32 drives power transmission shaft II 30 to rotate, and drive connecting lever II 5 to rotate, connecting lever II 5 drive link II 6 are moved, and connecting rod II 6 drives moving contact of grounding switch II 9 to move, and moving contact of grounding switch II 9 is contacted completely with static contact of grounding switch II.
The beneficial effects of the utility model are:
1: the utility model isolation earthing switch has adopted two earthed switches, in the time that needs carry out equipment, line maintenance, in the situation that after consideration isolating switch separating brake, all likely send a telegram here in fracture both sides, realize simultaneously the bus of isolating switch fracture both sides is carried out to safety ground;
2: due to isolating switch and two earthed switches are integrated in an isolation earthing switch, thereby make compact conformation, and the volume of whole GIS reduces greatly;
3: because the each fixed contact of the utility model isolation earthing switch has all adopted spring contact, can reduce isolating switch and earthed switch point, the serious problem of contact abrasion when closing operation;
4: because the motion of isolating switch moving contact adopts rack-and-pinion transmission, ensured that movable contact is cephalomotor steadily reliable; Earthed switch all adopts connecting lever drive mechanism, rapid grounding while being convenient to line maintenance.
Brief description of the drawings
Accompanying drawing 1 is the structural representation of the utility model isolation earthing switch;
Accompanying drawing 2 is the utility model isolation earthing switch A-A structural representations;
Accompanying drawing 3 is structural representations of the utility model isolation earthing switch spring contact;
In figure: 1-connecting rod I, 2-insulating basin I, 3-drier, 4-earth terminal II, 5-connecting lever II, 6 connecting rod II, 7-grounding shell II, 8-insulating basin II, 9-moving contact of grounding switch II, 10-moving contact of grounding switch radome II, 11-body inserts I, 12-disk insulator I, 13-static contact of grounding switch II, the quiet side conductor of 14-, 15-static contact isolation switch, 16-cover plate, 17-tooth bar movable feeler lever, 18-gear, 19-metal shell, 20-moves side conductor, 21-disk insulator II, 22-body inserts II, 23-static contact of grounding switch I, 24-moving contact of grounding switch I, 25-moving contact of grounding switch radome I, 26-earth terminal I, 27-grounding shell I, 28-power transmission shaft I, 29-connecting lever I, 30-power transmission shaft II, 31-shaft seal I, 32-operating mechanism case I, 33-deadlock lever I, 34-shaft seal II, 35-deadlock lever II, 36-shaft seal III, 37 deadlock lever III, 38-operating mechanism case II, 39-charging connector, 40-insulation actuating bar I, 41-insulation actuating bar II, 42-contact base, 43-spring washer, 44-metallic shield, 45-plum blossom fingertip, 46-check ring.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Embodiment 1: as Figure 1-3, a kind of isolation earthing switch, comprises isolating switch, earthed switch I, three parts of earthed switch II, specifically comprise connecting rod I 1, insulating basin I 2, drier 3, earth terminal II 4, connecting lever II 5, connecting rod II 6, grounding shell II 7, insulating basin II 8, moving contact of grounding switch II 9, moving contact of grounding switch radome II 10, body inserts I 11, disk insulator I 12, static contact of grounding switch II 13, quiet side conductor 14, static contact isolation switch 15, cover plate 16, tooth bar movable feeler lever 17, gear 18, metal shell 19, moving side conductor 20, disk insulator II 21, body inserts II 22, static contact of grounding switch I 23, moving contact of grounding switch I 24, moving contact of grounding switch radome I 25, earth terminal I 26, grounding shell I 27, power transmission shaft I 28, connecting lever I 29, power transmission shaft II 30, shaft seal I 31, operating mechanism case I 32, deadlock lever I 33, shaft seal II 34, deadlock lever II 35, shaft seal III 36, deadlock lever III 37, operating mechanism case II 38, charging connector 39, insulation actuating bar I 40, insulation actuating bar II 41, contact base 42, spring washer 43, metallic shield 44, plum blossom fingertip 45, check ring 46, disk insulator II 21 is installed in the inner chamber on metal shell 19 left sides, body inserts II 22 is arranged in disk insulator II 21, moving side conductor 20 is arranged in body inserts II 22, in the contact base on moving side conductor 20 left sides, static contact of grounding switch I 23 is installed, in the contact base on moving side conductor 20 the right, tooth bar movable feeler lever 17 and gear 18 are installed, tooth bar movable feeler lever 17 is moving contacts of isolating switch, gear 18 is meshed with tooth bar movable feeler lever 17, gear 18 is arranged in insulation actuating bar I 40, insulation actuating bar I 40 is arranged on metal shell 19 by shaft seal III 36, deadlock lever III 37 is arranged in insulation actuating bar I 40, the rotation of insulation actuating bar I 40 is driven by the transmission mechanism in operating mechanism case II 38, operating mechanism case II 38 is arranged on metal shell 19, insulation actuating bar II 41 is arranged on metal shell 19 by shaft seal II 34, deadlock lever II 35 is arranged in insulation actuating bar II 41, static contact isolation switch 15 is arranged in the contact base on quiet side conductor 14 left sides, in the contact base on quiet side conductor 14 the right, static contact of grounding switch II 13 is installed, quiet side conductor 14 is arranged in body inserts I 11, body inserts I 11 is arranged in disk insulator I 12, and disk insulator I 12 is arranged in the inner chamber on metal shell 19 right sides, insulating basin II 8 is arranged on metal shell 19, earth terminal II 4 is arranged in insulating basin II 8, grounding shell II 7 is arranged in insulating basin II 8, power transmission shaft II 30 is arranged in grounding shell II 7 and by shaft seal 31 and is connected with operating mechanism case I 32, operating mechanism case I 32 is arranged in grounding shell II 7, deadlock lever I 33 is arranged in power transmission shaft II 30, one end of connecting lever II 5 is arranged in power transmission shaft II 30, the other end is connected with connecting rod II 6 by pin, moving contact of grounding switch II 9 is connected with connecting rod II 6 and is arranged in moving contact of grounding switch radome II 10, moving contact of grounding switch radome II 10 is arranged in earth terminal II 4, insulating basin I 2 is arranged on metal shell 19, earth terminal I 26 is arranged in insulating basin I 2, grounding shell I 27 is arranged in insulating basin I 2, power transmission shaft I 28 is arranged in grounding shell I 27 and by shaft seal and is connected with operating mechanism case, one end of connecting lever I 29 is arranged in power transmission shaft I 28, the other end is connected with connecting rod I 1, moving contact of grounding switch I 24 is connected with connecting rod I 1 and is arranged in moving contact of grounding switch radome I 25, and moving contact of grounding switch radome I 25 is arranged in earth terminal I 26.
Described isolating switch also comprises body inserts I 11, disk insulator I 12, quiet side conductor 14, static contact isolation switch 15, tooth bar movable feeler lever 17, gear 18, moving side conductor 20, disk insulator II 21, body inserts II 22; When isolating switch closes a floodgate, the path of main circuit current is body inserts I 11, quiet side conductor 14, static contact isolation switch 15, tooth bar movable feeler lever 17, moving side conductor 20, body inserts II 22.
Described earthed switch I comprises disk insulator II 21, body inserts II 22, moving side conductor 20, static contact of grounding switch I 23, moving contact of grounding switch I 24, moving contact of grounding switch radome I 25, earth terminal I 26, grounding shell I 27, insulating basin I 2; When earthed switch I combined floodgate ground connection, the grounded circuit of major loop is body inserts II 22, moving side conductor 20, static contact of grounding switch I 23, moving contact of grounding switch I 24, grounding shell I 27, earth terminal I 26.
Described earthed switch II comprises body inserts I 11, disk insulator I 12, quiet side conductor 14, static contact of grounding switch II 13, moving contact of grounding switch II 9, moving contact of grounding switch radome II 10, earth terminal II 4, insulating basin II 8, grounding shell II 7; When earthed switch II combined floodgate ground connection, the grounded circuit of major loop is body inserts I 11, quiet side conductor 14, static contact of grounding switch II 13, moving contact of grounding switch II 9, grounding shell II 7, earth terminal II 4.
Described static contact of grounding switch II 13, static contact isolation switch 15, static contact of grounding switch I 23 all adopt helical spring contact and metallic shield 44 are housed separately; Metallic shield 44 is arranged on quiet side conductor 14, and the plum blossom fingertip 45 in metallic shield 44 inner chambers is arranged on contact base 42, and spring washer 43 and check ring 46 are arranged in plum blossom fingertip 45.
Described insulating basin I 2, insulating basin II 8, disk insulator I 12, disk insulator II 21, insulation actuating bar I 40, insulation actuating bar II 41 are poured with epoxy resin insulating part.
Described metal shell 19 is provided with drier 3 and charging connector 39, and cover plate 16 is installed on metal shell 19.
On described metal shell 19 and insulating basin I 2, drier 3, insulating basin II 8, cover plate 16 and charging connector 39 interface everywhere, be equipped with sealing ring.
Embodiment 2: as Figure 1-3, a kind of isolation earthing switch, comprises isolating switch, earthed switch I, three parts of earthed switch II, specifically comprise connecting rod I 1, insulating basin I 2, drier 3, earth terminal II 4, connecting lever II 5, connecting rod II 6, grounding shell II 7, insulating basin II 8, moving contact of grounding switch II 9, moving contact of grounding switch radome II 10, body inserts I 11, disk insulator I 12, static contact of grounding switch II 13, quiet side conductor 14, static contact isolation switch 15, cover plate 16, tooth bar movable feeler lever 17, gear 18, metal shell 19, moving side conductor 20, disk insulator II 21, body inserts II 22, static contact of grounding switch I 23, moving contact of grounding switch I 24, moving contact of grounding switch radome I 25, earth terminal I 26, grounding shell I 27, power transmission shaft I 28, connecting lever I 29, power transmission shaft II 30, shaft seal I 31, operating mechanism case I 32, deadlock lever I 33, shaft seal II 34, deadlock lever II 35, shaft seal III 36, deadlock lever III 37, operating mechanism case II 38, charging connector 39, insulation actuating bar I 40, insulation actuating bar II 41, contact base 42, spring washer 43, metallic shield 44, plum blossom fingertip 45, check ring 46, disk insulator II 21 is installed in the inner chamber on metal shell 19 left sides, body inserts II 22 is arranged in disk insulator II 21, moving side conductor 20 is connected by screw and is arranged in body inserts II 22, in the contact base on moving side conductor 20 left sides, static contact of grounding switch I 23 is installed, in the contact base on moving side conductor 20 the right, tooth bar movable feeler lever 17 and gear 18 are installed, tooth bar movable feeler lever 17 is moving contacts of isolating switch, gear 18 is meshed with tooth bar movable feeler lever 17, and be with carry-over bar movable feeler lever 17 contact or separate with static contact isolation switch 15, gear 18 is arranged in insulation actuating bar I 40, insulation actuating bar I 40 is arranged on metal shell 19 by shaft seal III 36, deadlock lever III 37 is arranged in insulation actuating bar I 40, the rotation of insulation actuating bar I 40 is driven by the transmission mechanism in operating mechanism case II 38, operating mechanism case II 38 is connected by screw and is arranged on metal shell 19, the actuating bar II 41 that insulate is in addition arranged on metal shell 19 by shaft seal II 34, deadlock lever II 35 is arranged in insulation actuating bar II 41, insulation actuating bar II 41 is mainly used in dividing of other two-phase moving contacts of actuating isolating switch and fixed contact, closing operation, static contact isolation switch 15 is arranged in the contact base on quiet side conductor 14 left sides, in the contact base on quiet side conductor 14 the right, static contact of grounding switch II 13 is installed, quiet side conductor 14 is connected by screw and is arranged in body inserts I 11, body inserts I 11 is arranged in disk insulator I 12, and disk insulator I 12 is arranged in the inner chamber on metal shell 19 right sides, insulating basin II 8 is arranged on metal shell 19, earth terminal II 4 is arranged in insulating basin II 8, grounding shell II 7 is connected by screw and is arranged in insulating basin II 8, power transmission shaft II 30 is arranged in grounding shell II 7 by bearing, and be connected with operating mechanism case I 32 by shaft seal 31, operating mechanism case I 32 is connected by screw and is arranged in grounding shell II 7, deadlock lever I 33 is arranged in power transmission shaft II 30, one end of connecting lever II 5 is arranged in power transmission shaft II 30, the other end is connected with connecting rod II 6 by pin, moving contact of grounding switch II 9 is connected with connecting rod II 6 by pin, and be arranged in moving contact of grounding switch radome II 10, moving contact of grounding switch radome II 10 is threaded connection and is arranged in earth terminal II 4, the rotation of power transmission shaft II 30 can drive connecting lever II 5 to rotate, connecting rod II 6 is moved thereupon, and drive moving contact of grounding switch II 9 to move up and down, make moving contact of grounding switch II 9 contact or separate with static contact of grounding switch II 13, insulating basin I 2 is arranged on metal shell 19, earth terminal I 26 is arranged in insulating basin I 2, grounding shell I 27 is connected by screw and is arranged in insulating basin I 2, power transmission shaft I 28 is arranged in grounding shell I 27 by bearing, and be connected with operating mechanism case by shaft seal, one end of connecting lever I 29 is arranged in power transmission shaft I 28, the other end is connected with connecting rod I 1 by pin, moving contact of grounding switch I 24 is connected with connecting rod I 1 by pin, and be arranged in moving contact of grounding switch radome I 25, moving contact of grounding switch radome I 25 is threaded connection and is arranged in earth terminal I 26, the rotation of power transmission shaft I 28 can drive connecting lever I 29 to rotate, connecting rod I 1 is and then motion also, and drive moving contact of grounding switch I 24 to move up and down, make moving contact of grounding switch I 24 contact or separate with static contact of grounding switch I 23.
Isolating switch comprises body inserts I 11, disk insulator I 12, quiet side conductor 14, static contact isolation switch 15, tooth bar movable feeler lever 17, gear 18, moving side conductor 20, disk insulator II 21, body inserts II 22; When isolating switch closes a floodgate, the path of main circuit current is body inserts I 11, quiet side conductor 14, static contact isolation switch 15, tooth bar movable feeler lever 17, moving side conductor 20, body inserts II 22.
Earthed switch I comprises disk insulator II 21, body inserts II 22, moving side conductor 20, static contact of grounding switch I 23, moving contact of grounding switch I 24, moving contact of grounding switch radome I 25, earth terminal I 26, grounding shell I 27, insulating basin I 2; When earthed switch I combined floodgate ground connection, the grounded circuit of major loop is body inserts II 22, moving side conductor 20, static contact of grounding switch I 23, moving contact of grounding switch I 24, grounding shell I 27, earth terminal I 26.
Earthed switch II comprises body inserts I 11, disk insulator I 12, quiet side conductor 14, static contact of grounding switch II 13, moving contact of grounding switch II 9, moving contact of grounding switch radome II 10, earth terminal II 4, insulating basin II 8, grounding shell II 7; When earthed switch II combined floodgate ground connection, the grounded circuit of major loop is body inserts I 11, quiet side conductor 14, static contact of grounding switch II 13, moving contact of grounding switch II 9, grounding shell II 7, earth terminal II 4.
Static contact of grounding switch II 13, static contact isolation switch 15, static contact of grounding switch I 23 all adopt helical spring contact and metallic shield 44 are installed separately, and metallic shield 44 is avoided the impact of electric field for shielding each fixed contact; Metallic shield 44 is threaded connection and is arranged on quiet side conductor 14, and the plum blossom fingertip 45 in metallic shield 44 inner chambers is connected by screw and is arranged on contact base 42, and spring washer 43 and check ring 46 are arranged in plum blossom fingertip 45.
Insulating basin I 2, insulating basin II 8, disk insulator I 12, disk insulator II 21, insulation actuating bar I 40, insulation actuating bar II 41 are poured with epoxy resin insulating part, in the utility model isolation earthing switch, play insulating effect.
Deadlock lever I 33, deadlock lever II 35, deadlock lever III 37 are for the utility model isolation earthing switch closing locking, and after locking, isolating switch and earthed switch just cannot carry out closing operation, to prevent that misoperation from causing security incident.
On metal shell 19, be provided with drier 3 and charging connector 39, drier 3 is used for being dried the insulating gas in metal shell 19, and charging connector 39 is used for to the interior SF of metal shell 19
6insulating gas; Cover plate 16 is installed on metal shell 19, when the utility model isolation earthing switch needs internal overhaul, can takes cover plate 16 apart, convenient maintenance.
On metal shell 19 and insulating basin I 2, drier 3, insulating basin II 8, cover plate 16 and charging connector 39 interface everywhere, be equipped with sealing ring, prevent the leakage of insulating gas.
By reference to the accompanying drawings embodiment of the present utility model is explained in detail above, but the utility model is not limited to above-mentioned execution mode, in the ken possessing those of ordinary skill in the art, can also under the prerequisite that does not depart from the utility model aim, make various variations.
Claims (8)
1. an isolation earthing switch, is characterized in that: comprise isolating switch, earthed switch I, three parts of earthed switch II, specifically comprise connecting rod I (1), insulating basin I (2), drier (3), earth terminal II (4), connecting lever II (5), connecting rod II (6), grounding shell II (7), insulating basin II (8), moving contact of grounding switch II (9), moving contact of grounding switch radome II (10), body inserts I (11), disk insulator I (12), static contact of grounding switch II (13), quiet side conductor (14), static contact isolation switch (15), cover plate (16), tooth bar movable feeler lever (17), gear (18), metal shell (19), moving side conductor (20), disk insulator II (21), body inserts II (22), static contact of grounding switch I (23), moving contact of grounding switch I (24), moving contact of grounding switch radome I (25), earth terminal I (26), grounding shell I (27), power transmission shaft I (28), connecting lever I (29), power transmission shaft II (30), shaft seal I (31), operating mechanism case I (32), deadlock lever I (33), shaft seal II (34), deadlock lever II (35), shaft seal III (36), deadlock lever III (37), operating mechanism case II (38), charging connector (39), insulation actuating bar I (40), insulation actuating bar II (41), contact base (42), spring washer (43), metallic shield (44), plum blossom fingertip (45), check ring (46), disk insulator II (21) is installed in the inner chamber on metal shell (19) left side, body inserts II (22) is arranged in disk insulator II (21), moving side conductor (20) is arranged in body inserts II (22), in the contact base on moving side conductor (20) left side, static contact of grounding switch I (23) is installed, in the contact base on moving side conductor (20) the right, tooth bar movable feeler lever (17) and gear (18) are installed, tooth bar movable feeler lever (17) is the moving contact of isolating switch, gear (18) is meshed with tooth bar movable feeler lever (17), gear (18) is arranged in insulation actuating bar I (40), insulation actuating bar I (40) is arranged on metal shell (19) by shaft seal III (36), deadlock lever III (37) is arranged in insulation actuating bar I (40), the rotation of insulation actuating bar I (40) is driven by the transmission mechanism in operating mechanism case II (38), operating mechanism case II (38) is arranged on metal shell (19), insulation actuating bar II (41) is arranged on metal shell (19) by shaft seal II (34), deadlock lever II (35) is arranged in insulation actuating bar II (41), static contact isolation switch (15) is arranged in the contact base on quiet side conductor (14) left side, in the contact base on quiet side conductor (14) the right, static contact of grounding switch II (13) is installed, quiet side conductor (14) is arranged in body inserts I (11), body inserts I (11) is arranged in disk insulator I (12), and disk insulator I (12) is arranged in the inner chamber on metal shell (19) right side, insulating basin II (8) is arranged on metal shell (19), earth terminal II (4) is arranged in insulating basin II (8), grounding shell II (7) is arranged in insulating basin II (8), power transmission shaft II (30) is arranged on that grounding shell II (7) goes up and is connected with operating mechanism case I (32) by shaft seal (31), operating mechanism case I (32) is arranged in grounding shell II (7), deadlock lever I (33) is arranged in power transmission shaft II (30), one end of connecting lever II (5) is arranged in power transmission shaft II (30), the other end is connected with connecting rod II (6) by pin, moving contact of grounding switch II (9) is connected with connecting rod II (6) and is arranged in moving contact of grounding switch radome II (10), moving contact of grounding switch radome II (10) is arranged in earth terminal II (4), insulating basin I (2) is arranged on metal shell (19), earth terminal I (26) is arranged in insulating basin I (2), grounding shell I (27) is arranged in insulating basin I (2), power transmission shaft I (28) is arranged on grounding shell I (27) above and is connected with operating mechanism case by shaft seal, one end of connecting lever I (29) is arranged in power transmission shaft I (28), the other end is connected with connecting rod I (1), moving contact of grounding switch I (24) is connected with connecting rod I (1) and is arranged in moving contact of grounding switch radome I (25), moving contact of grounding switch radome I (25) is arranged in earth terminal I (26).
2. isolation earthing switch according to claim 1, is characterized in that: described isolating switch also comprises body inserts I (11), disk insulator I (12), quiet side conductor (14), static contact isolation switch (15), tooth bar movable feeler lever (17), gear (18), moving side conductor (20), disk insulator II (21), body inserts II (22); When isolating switch closes a floodgate, the path of main circuit current is body inserts I (11), quiet side conductor (14), static contact isolation switch (15), tooth bar movable feeler lever (17), moving side conductor (20), body inserts II (22).
3. isolation earthing switch according to claim 1, is characterized in that: described earthed switch I comprises disk insulator II (21), body inserts II (22), moving side conductor (20), static contact of grounding switch I (23), moving contact of grounding switch I (24), moving contact of grounding switch radome I (25), earth terminal I (26), grounding shell I (27), insulating basin I (2); When earthed switch I combined floodgate ground connection, the grounded circuit of major loop is body inserts II (22), moving side conductor (20), static contact of grounding switch I (23), moving contact of grounding switch I (24), grounding shell I (27), earth terminal I (26).
4. isolation earthing switch according to claim 1, is characterized in that: described earthed switch II comprises body inserts I (11), disk insulator I (12), quiet side conductor (14), static contact of grounding switch II (13), moving contact of grounding switch II (9), moving contact of grounding switch radome II (10), earth terminal II (4), insulating basin II (8), grounding shell II (7); When earthed switch II combined floodgate ground connection, the grounded circuit of major loop is body inserts I (11), quiet side conductor (14), static contact of grounding switch II (13), moving contact of grounding switch II (9), grounding shell II (7), earth terminal II (4).
5. isolation earthing switch according to claim 1, is characterized in that: described static contact of grounding switch II (13), static contact isolation switch (15), static contact of grounding switch I (23) all adopt helical spring contact and metallic shield (44) is housed separately; It is upper that metallic shield (44) is arranged on quiet side conductor (14), and it is upper that the plum blossom fingertip (45) in metallic shield (44) inner chamber is arranged on contact base (42), and spring washer (43) and check ring (46) are arranged in plum blossom fingertip (45).
6. isolation earthing switch according to claim 1, is characterized in that: described insulating basin I (2), insulating basin II (8), disk insulator I (12), disk insulator II (21), insulation actuating bar I (40), insulation actuating bar II (41) are poured with epoxy resin insulating part.
7. isolation earthing switch according to claim 1, is characterized in that: described metal shell (19) is provided with drier (3) and charging connector (39), and cover plate (16) is installed on metal shell (19).
8. isolation earthing switch according to claim 1, is characterized in that: on described metal shell (19) and insulating basin I (2), drier (3), insulating basin II (8), cover plate (16) and charging connector (39) interface everywhere, be equipped with sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320851758.7U CN203747291U (en) | 2013-12-23 | 2013-12-23 | Isolation grounding switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320851758.7U CN203747291U (en) | 2013-12-23 | 2013-12-23 | Isolation grounding switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203747291U true CN203747291U (en) | 2014-07-30 |
Family
ID=51347050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320851758.7U Expired - Lifetime CN203747291U (en) | 2013-12-23 | 2013-12-23 | Isolation grounding switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203747291U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103683083A (en) * | 2013-12-23 | 2014-03-26 | 昆明理工大学 | Isolated earth switch |
| CN109119280A (en) * | 2017-06-23 | 2019-01-01 | 河南平芝高压开关有限公司 | A kind of isolation earthing switch and the GIS device using the isolation earthing switch |
| CN109727796A (en) * | 2018-12-31 | 2019-05-07 | 平高集团有限公司 | A kind of isolated switchgear |
-
2013
- 2013-12-23 CN CN201320851758.7U patent/CN203747291U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103683083A (en) * | 2013-12-23 | 2014-03-26 | 昆明理工大学 | Isolated earth switch |
| CN103683083B (en) * | 2013-12-23 | 2016-03-30 | 昆明理工大学 | A kind of isolation earthing switch |
| CN109119280A (en) * | 2017-06-23 | 2019-01-01 | 河南平芝高压开关有限公司 | A kind of isolation earthing switch and the GIS device using the isolation earthing switch |
| CN109119280B (en) * | 2017-06-23 | 2021-10-29 | 河南平芝高压开关有限公司 | Isolation grounding switch and GIS equipment using same |
| CN109727796A (en) * | 2018-12-31 | 2019-05-07 | 平高集团有限公司 | A kind of isolated switchgear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140730 Termination date: 20141223 |
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| EXPY | Termination of patent right or utility model | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140730 Effective date of abandoning: 20160330 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20140730 Effective date of abandoning: 20160330 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |