CN105513913A - High-voltage circuit breaker adopting built-in type operating mechanism - Google Patents

High-voltage circuit breaker adopting built-in type operating mechanism Download PDF

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Publication number
CN105513913A
CN105513913A CN201510891814.3A CN201510891814A CN105513913A CN 105513913 A CN105513913 A CN 105513913A CN 201510891814 A CN201510891814 A CN 201510891814A CN 105513913 A CN105513913 A CN 105513913A
Authority
CN
China
Prior art keywords
phase
power transmission
pull bar
crank arm
shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201510891814.3A
Other languages
Chinese (zh)
Inventor
冯英
王承玉
武建文
汪建成
解克佳
伍勃
金逸
费益军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
Beihang University
China Electric Power Research Institute Co Ltd CEPRI
State Grid Jiangsu Electric Power Co Ltd
Shandong Taikai High Volt Switchgear Co Ltd
Original Assignee
State Grid Corp of China SGCC
Beihang University
China Electric Power Research Institute Co Ltd CEPRI
State Grid Jiangsu Electric Power Co Ltd
Shandong Taikai High Volt Switchgear Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by State Grid Corp of China SGCC, Beihang University, China Electric Power Research Institute Co Ltd CEPRI, State Grid Jiangsu Electric Power Co Ltd, Shandong Taikai High Volt Switchgear Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201510891814.3A priority Critical patent/CN105513913A/en
Publication of CN105513913A publication Critical patent/CN105513913A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00Mechanisms for operating contacts
    • H01H3/22Power arrangements internal to the switch for operating the driving mechanism
    • H01H3/26Power arrangements internal to the switch for operating the driving mechanism using dynamo-electric motor
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10Operating or release mechanisms

Abstract

The invention provides a high-voltage circuit breaker adopting a built-in type operating mechanism, wherein the high-voltage circuit breaker comprises an A phase ceramic sleeve, a B phase ceramic sleeve, a C phase ceramic sleeve, a built-in type operating mechanism and a transmission mechanism; each of the A phase ceramic sleeve, the B phase ceramic sleeve and the C phase ceramic sleeve comprises an upper ceramic sleeve, a lower ceramic sleeve and a wiring board, the upper ceramic sleeve and the lower ceramic sleeve are connected through the wiring board, an arc extinguish chamber is arranged in the upper ceramic sleeve, a insulated pull rod is arranged in the lower ceramic sleeve, one end of the insulated pull rod is connected with the arc extinguish chamber, and the other end and the built-in type operating mechanism are connected with the transmission mechanism separately. According to the invention, a driving motor is arranged on the middle part of the high-voltage circuit breaker to realize the balance and transmission of the actuating force; a permanent magnet synchronous motor adopted by the circuit breaker replaces a spring operating mechanism, so that the mechanism and components are simplified, can be change conveniently and control flexibly; the structure of the circuit breaker has small rotational inertia and light weight, and is simple, reliable and easy to realize.

Description

A kind of primary cut-out adopting middle operating mechanism
Technical field
The present invention relates to a kind of circuit breaker, be specifically related to a kind of primary cut-out adopting middle operating mechanism.
Background technology
Because traditional high-voltage breaker operation mechanism failure rate is high, poor stability, complicated in mechanical structure, the safe operation for electric power system brings very large potential safety hazard.Propose the novel operating mechanism utilizing motor driven primary cut-out in recent years, can solve the problem.But find in actual design and engineer applied process, operating work needed for high-voltage circuit-breaker switching on-off is larger, whole drive mechanism moment of inertia is too high, therefore require very high to the acceleration of motor, overload capacity and dynamic response capability, so just for the Practical Project use of this product brings very large obstruction.Therefore, reduce the moment of inertia of whole drive system, simplification mechanical structure just becomes the most important thing.
Application number be 018062172 patent of invention propose circuit-breaker and use the equipment of this circuit breaker, purposes and method; And only propose a kind of circuit breaker transmission thinking, there is no concrete structure;
Application number be 2009200898620 utility model patent a kind of mechanical linkage type high-voltage circuit breaker is proposed, application number be 2009100645496 patent of invention propose a kind of primary cut-out connector and use the primary cut-out of this connector, two sections of patents only describe local single part, and practical application effect is unsatisfactory.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the invention provides a kind of primary cut-out adopting middle operating mechanism, drive motors is configured at centre position, realizes actuating equilibrium of forces and transmission; Drive motors is connected with mechanism output shaft by output shaft, and mechanism's output shaft is connected with power transmission shaft by connecting rod, and the connecting lever on power transmission shaft drives one end of insulated tension pole to rotate, and the insulated tension pole other end is connected with arc control device; With the rectilinear motion of the rotational movement insulated tension pole other end of drive motors, thus realize the breaking-closing operating of circuit breaker, primary cut-out version provided by the invention be simply firm, moment of inertia is little, lightweight, be easy to realize.
In order to realize foregoing invention object, the present invention takes following technical scheme:
The invention provides a kind of primary cut-out adopting middle operating mechanism, described primary cut-out comprises A phase insulator, B phase insulator, C phase insulator, middle operating mechanism and drive mechanism;
Described A phase insulator, B phase insulator, C phase insulator include insulator, lower insulator and terminal block, described upper insulator is connected by terminal block with lower insulator, described upper insulator and lower insulator inside are respectively equipped with arc control device and insulated tension pole, described insulated tension pole one end is connected with arc control device, its other end and the equal connection for transmission structure of middle operating mechanism.
Described middle operating mechanism adopts drive motors, and described drive motors is magneto.
Described drive mechanism comprises shaft coupling, mechanism's output shaft, the first roller bearing, output toggle arm, the second roller bearing, connecting rod, transmission crank arm, alternate pull bar, power transmission shaft and interior connecting lever.
Described alternate pull bar to comprise between pull bar between first-phase, second-phase pull bar and the 4th alternate pull bar between pull bar, third phase;
Described power transmission shaft comprises A phase power transmission shaft, B phase power transmission shaft and C phase power transmission shaft;
Described interior connecting lever comprises connecting lever in connecting lever in A phase, the interior connecting lever of B phase and C phase;
Described transmission crank arm comprises A phase transmission crank arm, B phase transmission crank arm and C phase transmission crank arm.
The output shaft of described drive motors is connected with shaft coupling one end, the described shaft coupling other end is connected with mechanism output shaft, the other end of described mechanism output shaft connects output toggle arm, and its end is provided with the first roller bearing, and described mechanism output shaft is by the first roller bearing connecting breaker support; The other end of described output toggle arm connects connecting rod, and the other end of described connecting rod connects B phase transmission crank arm; The second roller bearing is provided with between mechanism's output shaft with B phase output toggle arm.
Described B phase transmission crank arm is provided with B phase power transmission shaft installing hole, connecting rod installing hole pull bar installing hole alternate with two;
Described A phase transmission crank arm is provided with A phase power transmission shaft installing hole pull bar installing hole alternate with two;
Described C phase transmission crank arm is provided with C phase power transmission shaft installing hole pull bar installing hole alternate with two.
In described A phase, connecting lever one end connects the insulated tension pole of A phase insulator inside, the other end connects A phase power transmission shaft, the other end of described A phase power transmission shaft is through the A phase power transmission shaft installing hole that A phase transmission crank arm is arranged, between described first-phase, between pull bar, second-phase, pull bar one end is separately separately fixed in two alternate pull bar installing holes in A phase transmission crank arm, and both are separately fixed in two alternate pull bar installing holes in B phase transmission crank arm at the respective other end;
In described B phase, connecting lever one end connects the insulated tension pole of B phase insulator inside, the other end connects B phase power transmission shaft, the described B phase power transmission shaft other end is through the B phase power transmission shaft installing hole that B phase transmission crank arm is arranged, and described connecting rod is fixed in the connecting rod installing hole in B phase transmission crank arm;
In described C phase, connecting lever one end connects the insulated tension pole of C phase insulator inside, the other end connects C phase power transmission shaft, the described C phase power transmission shaft other end is through the C phase power transmission shaft installing hole that C phase transmission crank arm is arranged, between described third phase, pull bar, the 4th alternate pull bar one end are separately separately fixed in two alternate pull bar installing holes in C phase transmission crank arm, and both are separately fixed in two alternate pull bar installing holes in B phase transmission crank arm the respective other end.
The output shaft of described drive motors is fixed by flat key and shaft coupling one end, and the described shaft coupling other end is fixed by the external splines of internal spline and mechanism's output shaft, and the other end of described mechanism output shaft is fixed by the internal spline of external splines and output toggle arm.
The output shaft of described drive motors, A phase power transmission shaft, B phase power transmission shaft, C phase power transmission shaft and mechanism's output shaft all adopt steel to make, and described steel are mild steel, medium carbon steel or steel alloy.
Compared with immediate prior art, technical scheme provided by the invention has following beneficial effect:
1), in the primary cut-out of employing middle operating mechanism provided by the invention, drive motors is configured at centre position, realizes actuating equilibrium of forces and transmission;
2) in the primary cut-out of employing middle operating mechanism provided by the invention, drive motors adopts magneto to replace spring operating mechanism, realizes the simplification of mechanism element, is convenient for changing, controls flexibly;
3) the primary cut-out version of employing middle operating mechanism provided by the invention is simply firm, moment of inertia is little, lightweight, be easy to realize.
Accompanying drawing explanation
Fig. 1 is the primary cut-out structure chart adopting middle operating mechanism in the embodiment of the present invention;
Fig. 2 is the structure chart of transmission mechanism in the embodiment of the present invention;
In figure, 1, drive motors; 2, the output shaft of drive motors; 3, shaft coupling; 4, mechanism's output shaft; 5, the second roller bearing; 6, output toggle arm; 7, the first roller bearing; 8, connecting rod; 9, B phase transmission crank arm; 10, pull bar between first-phase; 11, pull bar between second-phase; 12, pull bar between third phase; 13, the 4th alternate pull bar; 14, power transmission shaft; 15, interior connecting lever; 16, insulated tension pole; 17, arc control device; 18, upper insulator; 19, lower insulator.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
The invention provides a kind of primary cut-out adopting middle operating mechanism, as Fig. 1, described primary cut-out comprises A phase insulator, B phase insulator, C phase insulator, middle operating mechanism and drive mechanism;
Described A phase insulator, B phase insulator, C phase insulator include insulator 18, lower insulator 19 and terminal block, described upper insulator 18 is connected by terminal block with lower insulator 19, described upper insulator 18 and lower insulator 19 inside are respectively equipped with arc control device 17 and insulated tension pole 16, described insulated tension pole 16 one end is connected with arc control device 17, its other end and the equal connection for transmission structure of middle operating mechanism.
Described middle operating mechanism adopts drive motors 1, and described drive motors 1 is magneto.
As Fig. 2, described drive mechanism comprises shaft coupling 3, mechanism's output shaft 4, first roller bearing 7, output toggle arm 6, second roller bearing 5, connecting rod 8, transmission crank arm, alternate pull bar, power transmission shaft 14 and interior connecting lever 15.
Described alternate pull bar to comprise between first-phase between pull bar 10, second-phase pull bar 12 and the 4th alternate pull bar 13 between pull bar 11, third phase;
Described power transmission shaft 14 comprises A phase power transmission shaft, B phase power transmission shaft and C phase power transmission shaft;
Described interior connecting lever 15 comprises connecting lever in connecting lever in A phase, the interior connecting lever of B phase and C phase;
Described transmission crank arm comprises A phase transmission crank arm, B phase transmission crank arm 9 and C phase transmission crank arm.
The output shaft 2 of described drive motors is connected with shaft coupling 3 one end, described shaft coupling 3 other end is connected with mechanism output shaft 4, the other end of described mechanism output shaft 4 connects output toggle arm 6, and its end is provided with the first roller bearing 7, described mechanism output shaft 4 is by the first roller bearing 7 connecting breaker support; The other end of described output toggle arm 6 connects connecting rod 8, and the other end of described connecting rod 8 connects B phase transmission crank arm 9; The second roller bearing 5 is provided with between mechanism's output shaft 4 with B phase output toggle arm 6.
Described B phase transmission crank arm 9 is provided with B phase power transmission shaft installing hole, connecting rod installing hole pull bar installing hole alternate with two;
Described A phase transmission crank arm is provided with A phase power transmission shaft installing hole pull bar installing hole alternate with two;
Described C phase transmission crank arm is provided with C phase power transmission shaft installing hole pull bar installing hole alternate with two.
In described A phase, connecting lever one end connects the insulated tension pole of A phase insulator inside, the other end connects A phase power transmission shaft, the other end of described A phase power transmission shaft is through the A phase power transmission shaft installing hole that A phase transmission crank arm is arranged, one end that between described first-phase, between pull bar 10, second-phase, pull bar 11 is respective is separately fixed in two alternate pull bar installing holes in A phase transmission crank arm, and both are separately fixed in two alternate pull bar installing holes in B phase transmission crank arm 9 at the respective other end;
In described B phase, connecting lever one end connects the insulated tension pole of B phase insulator inside, the other end connects B phase power transmission shaft, the described B phase power transmission shaft other end is through the B phase power transmission shaft installing hole that B phase transmission crank arm 9 is arranged, and described connecting rod 8 is fixed in the connecting rod installing hole in B phase transmission crank arm 9;
In described C phase, connecting lever one end connects the insulated tension pole of C phase insulator inside, the other end connects C phase power transmission shaft, the described C phase power transmission shaft other end is through the C phase power transmission shaft installing hole that C phase transmission crank arm is arranged, the respective one end of pull bar 12 between described third phase, the 4th alternate pull bar 13 is separately fixed in two alternate pull bar installing holes in C phase transmission crank arm, and both are separately fixed in two alternate pull bar installing holes in B phase transmission crank arm 9 the respective other end.
The output shaft 2 of described drive motors is fixed by flat key and shaft coupling 3 one end, and described shaft coupling 3 other end is fixed by the external splines of internal spline and mechanism's output shaft 4, and the other end of described mechanism output shaft 4 is fixed by the internal spline of external splines and output toggle arm 6.
The output shaft 2 of described drive motors, A phase power transmission shaft, B phase power transmission shaft, C phase power transmission shaft and mechanism's output shaft 4 all adopt steel to make, and described steel are mild steel, medium carbon steel or steel alloy.
The primary cut-out operation principle of employing middle operating mechanism provided by the invention is as follows:
The rotary motion of the output shaft 2 of drive motors is become the rectilinear motion in high-voltage circuit-breaker switching on-off vertical direction, be specially output shaft 2 and shaft coupling 3 one end fits of drive motors, simultaneously shaft coupling 3 other end coordinates with mechanism output shaft 4, mechanism's output shaft 4 and output toggle arm 6 rotate with same angular velocity, output toggle arm 6 is connected with B phase transmission crank arm 9 by the connecting rod 8 in vertical direction simultaneously, B transmission crank arm drives alternate pull bar to do plane motion, alternate pull bar drives the power transmission shaft of three-phase to rotate, interior connecting lever on three-phase power transmission shaft drives the lower end of insulated tension pole 16 to rotate, rectilinear motion is done in the upper end of insulated tension pole 16 simultaneously, thus the rotary motion of drive motors output shaft is become the rectilinear motion of insulated tension pole 16 upper end.The upper end of insulated tension pole 16 is connected with arc control device 17, utilizes the rectilinear motion up and down of insulated tension pole 16 to drive arc control device 17 to move, thus realizes breaking-closing operating.
Finally should be noted that: above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit; those of ordinary skill in the field still can modify to the specific embodiment of the present invention with reference to above-described embodiment or equivalent replacement; these do not depart from any amendment of spirit and scope of the invention or equivalent replacement, are all applying within the claims of the present invention awaited the reply.

Claims (9)

1. adopt a primary cut-out for middle operating mechanism, it is characterized in that: described primary cut-out comprises A phase insulator, B phase insulator, C phase insulator, middle operating mechanism and drive mechanism;
Described A phase insulator, B phase insulator, C phase insulator include insulator, lower insulator and terminal block, described upper insulator is connected by terminal block with lower insulator, described upper insulator and lower insulator inside are respectively equipped with arc control device and insulated tension pole, described insulated tension pole one end is connected with arc control device, its other end and the equal connection for transmission structure of middle operating mechanism.
2. the primary cut-out of employing middle operating mechanism according to claim 1, is characterized in that: described middle operating mechanism adopts drive motors, and described drive motors is magneto.
3. the primary cut-out of employing middle operating mechanism according to claim 2, is characterized in that: described drive mechanism comprises shaft coupling, mechanism's output shaft, the first roller bearing, output toggle arm, the second roller bearing, connecting rod, transmission crank arm, alternate pull bar, power transmission shaft and interior connecting lever.
4. the primary cut-out of employing middle operating mechanism according to claim 3, is characterized in that: described alternate pull bar to comprise between pull bar between first-phase, second-phase pull bar and the 4th alternate pull bar between pull bar, third phase;
Described power transmission shaft comprises A phase power transmission shaft, B phase power transmission shaft and C phase power transmission shaft;
Described interior connecting lever comprises connecting lever in connecting lever in A phase, the interior connecting lever of B phase and C phase;
Described transmission crank arm comprises A phase transmission crank arm, B phase transmission crank arm and C phase transmission crank arm.
5. the primary cut-out of employing middle operating mechanism according to claim 4, it is characterized in that: the output shaft of described drive motors is connected with shaft coupling one end, the described shaft coupling other end is connected with mechanism output shaft, the other end of described mechanism output shaft connects output toggle arm, and its end is provided with the first roller bearing, described mechanism output shaft is by the first roller bearing connecting breaker support; The other end of described output toggle arm connects connecting rod, and the other end of described connecting rod connects B phase transmission crank arm; The second roller bearing is provided with between mechanism's output shaft with B phase output toggle arm.
6. the primary cut-out of employing middle operating mechanism according to claim 5, is characterized in that: described B phase transmission crank arm is provided with B phase power transmission shaft installing hole, connecting rod installing hole pull bar installing hole alternate with two;
Described A phase transmission crank arm is provided with A phase power transmission shaft installing hole pull bar installing hole alternate with two;
Described C phase transmission crank arm is provided with C phase power transmission shaft installing hole pull bar installing hole alternate with two.
7. the primary cut-out of employing middle operating mechanism according to claim 6, it is characterized in that: in described A phase, connecting lever one end connects the insulated tension pole of A phase insulator inside, the other end connects A phase power transmission shaft, the other end of described A phase power transmission shaft is through the A phase power transmission shaft installing hole that A phase transmission crank arm is arranged, between described first-phase, between pull bar, second-phase, pull bar one end is separately separately fixed in two alternate pull bar installing holes in A phase transmission crank arm, and both are separately fixed in two alternate pull bar installing holes in B phase transmission crank arm at the respective other end;
In described B phase, connecting lever one end connects the insulated tension pole of B phase insulator inside, the other end connects B phase power transmission shaft, the described B phase power transmission shaft other end is through the B phase power transmission shaft installing hole that B phase transmission crank arm is arranged, and described connecting rod is fixed in the connecting rod installing hole in B phase transmission crank arm;
In described C phase, connecting lever one end connects the insulated tension pole of C phase insulator inside, the other end connects C phase power transmission shaft, the described C phase power transmission shaft other end is through the C phase power transmission shaft installing hole that C phase transmission crank arm is arranged, between described third phase, pull bar, the 4th alternate pull bar one end are separately separately fixed in two alternate pull bar installing holes in C phase transmission crank arm, and both are separately fixed in two alternate pull bar installing holes in B phase transmission crank arm the respective other end.
8. the primary cut-out of employing middle operating mechanism according to claim 3, it is characterized in that: the output shaft of described drive motors is fixed by flat key and shaft coupling one end, the described shaft coupling other end is fixed by the external splines of internal spline and mechanism's output shaft, and the other end of described mechanism output shaft is fixed by the internal spline of external splines and output toggle arm.
9. the primary cut-out of employing middle operating mechanism according to claim 5, it is characterized in that: the output shaft of described drive motors, A phase power transmission shaft, B phase power transmission shaft, C phase power transmission shaft and mechanism's output shaft all adopt steel to make, and described steel are mild steel, medium carbon steel or steel alloy.
CN201510891814.3A 2015-12-07 2015-12-07 High-voltage circuit breaker adopting built-in type operating mechanism Pending CN105513913A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510891814.3A CN105513913A (en) 2015-12-07 2015-12-07 High-voltage circuit breaker adopting built-in type operating mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510891814.3A CN105513913A (en) 2015-12-07 2015-12-07 High-voltage circuit breaker adopting built-in type operating mechanism

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Cited By (5)

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Publication number Priority date Publication date Assignee Title
CN106653425A (en) * 2016-12-30 2017-05-10 浙江华仪电器科技有限公司 Switch structure
CN107068475A (en) * 2017-04-24 2017-08-18 平高集团有限公司 A kind of transmission limit device
CN107068474A (en) * 2017-04-24 2017-08-18 平高集团有限公司 A kind of spacing high-voltage switch gear of finite angle
CN107068473A (en) * 2017-04-24 2017-08-18 平高集团有限公司 A kind of transmission limit device used for high-voltage switch
CN109313993A (en) * 2016-06-14 2019-02-05 西门子股份公司 Method for the spring-type drive of high-voltage circuit breaker and for running spring-type drive

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CN202816785U (en) * 2012-04-14 2013-03-20 鞍山北科电气有限公司 A 40.5kV outdoor high-voltage vacuum circuit breaker with three respectively-motioned phases
CN104078287A (en) * 2014-06-25 2014-10-01 中国西电电气股份有限公司 High-voltage breaker assembly and connecting mechanism for enabling high-voltage breaker and operating mechanism to be connected
CN204375634U (en) * 2014-12-19 2015-06-03 铁岭市世纪电力设备有限公司 Outdoor AC high-voltage three-phase linkage isolating switch

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GB1410010A (en) * 1971-10-11 1975-10-15 Reyrolle Parsons Ltd High-voltage disconnector switches
US4107486A (en) * 1976-06-30 1978-08-15 S & C Electric Company Switch operating mechanisms for high voltage switches
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10861656B2 (en) 2016-06-14 2020-12-08 Siemens Aktiengesellschaft Spring-loaded drive for a high-voltage power switch and method for operating the spring-loaded drive
CN109313993B (en) * 2016-06-14 2021-02-05 西门子股份公司 Spring-loaded drive for a high-voltage circuit breaker and method for operating a spring-loaded drive
CN109313993A (en) * 2016-06-14 2019-02-05 西门子股份公司 Method for the spring-type drive of high-voltage circuit breaker and for running spring-type drive
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CN107068474A (en) * 2017-04-24 2017-08-18 平高集团有限公司 A kind of spacing high-voltage switch gear of finite angle
CN107068473A (en) * 2017-04-24 2017-08-18 平高集团有限公司 A kind of transmission limit device used for high-voltage switch
CN107068475A (en) * 2017-04-24 2017-08-18 平高集团有限公司 A kind of transmission limit device

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