CN111627745A - Novel high-low voltage isolating switch - Google Patents

Novel high-low voltage isolating switch Download PDF

Info

Publication number
CN111627745A
CN111627745A CN202010492906.5A CN202010492906A CN111627745A CN 111627745 A CN111627745 A CN 111627745A CN 202010492906 A CN202010492906 A CN 202010492906A CN 111627745 A CN111627745 A CN 111627745A
Authority
CN
China
Prior art keywords
fixedly connected
insulating
wiring contact
low voltage
novel high
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.)
Withdrawn
Application number
CN202010492906.5A
Other languages
Chinese (zh)
Inventor
余成鹏
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.)
Wenzhou Lucheng Yuanlong Electrical Technology Co ltd
Original Assignee
Wenzhou Lucheng Yuanlong Electrical Technology 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 Wenzhou Lucheng Yuanlong Electrical Technology Co ltd filed Critical Wenzhou Lucheng Yuanlong Electrical Technology Co ltd
Priority to CN202010492906.5A priority Critical patent/CN111627745A/en
Publication of CN111627745A publication Critical patent/CN111627745A/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/02Details
    • H01H31/026Movable parts and contacts mounted thereon
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H3/00Mechanisms for operating contacts
    • H01H3/60Mechanical arrangements for preventing or damping vibration or shock
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H31/00Air-break switches for high tension without arc-extinguishing or arc-preventing means
    • H01H31/02Details

Abstract

The invention discloses a novel high-low voltage isolating switch which comprises a supporting seat, wherein the top of the supporting seat is respectively and fixedly connected with a left insulating support and a right insulating support, the top of the left insulating support is fixedly connected with a left wiring contact, the top of the right insulating support is fixedly connected with a right wiring contact, the tops of the left wiring contact and the right wiring contact are movably provided with a disconnecting link, the inner wall of the disconnecting link is fixedly connected with an insulating partition plate, and a first guide pipe and a second guide pipe are fixedly connected between the two insulating partition plates. According to the invention, by rotating the disconnecting link, the disconnecting link drives the movable rod to rotate through the insulating partition plate, the first guide pipe and the second guide pipe, the movable rod drives the clamping head to rotate, the surface of the clamping block is clamped with the inner wall of the clamping groove, and the disconnecting link can be prevented from reversely rotating by matching the clamping head with the clamping groove through the clamping block, so that the disconnecting link is firmly arranged at the tops of the left wiring contact and the right wiring contact.

Description

Novel high-low voltage isolating switch
Technical Field
The invention relates to the technical field of isolating switches, in particular to a novel high-low voltage isolating switch.
Background
The high-voltage isolating switch is a key device in an electric power system, mainly electrically isolates electric devices such as an overhauled high-voltage bus, a breaker and the like from a live high-voltage line, switches the high-voltage line, switches small load current and the like under the condition of no load according to the operation requirement of a power grid, and is one of high-voltage switch devices with the largest use amount and the widest application range in the electric power system. Because high voltage isolator is mostly in the open air, and operating condition is abominable, and most of subassembly are basically exposed, receive external environment and weather's influence for a long time, isolator electrical contact oxidation to different extent appears, and the contact surface blackens. The frequency of the operation of the isolating switch is frequent, the electric contact is seriously damaged, and the conditions of corrosion, crack, coating falling and the like occur, so that the contact resistance of the electric contact is overlarge, the temperature rise is overhigh, the working performance of the isolating switch is influenced, and then the reliable power supply of the whole circuit and the safe and stable operation of a power grid are influenced.
However, in the prior art, when the switch blade is actually used, the switch blade is not firmly fixed, a maintenance worker can easily touch the switch blade by mistake, and the convex block arranged on the switch blade can be easily separated from the contact in the process of touching the switch blade by mistake by force, so that the maintenance worker and an electric appliance are damaged.
Disclosure of Invention
The invention aims to provide a novel high-low voltage isolating switch to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: comprises a supporting seat, the top of the supporting seat is respectively fixedly connected with a left insulating strut and a right insulating strut, the top of the left insulating strut is fixedly connected with a left wiring contact, the top of the right insulating strut is fixedly connected with a right wiring contact, the top of the left wiring contact and the top of the right wiring contact are movably provided with a disconnecting link, the inner wall of the disconnecting link is fixedly connected with an insulating partition plate, a first guide pipe and a second guide pipe are fixedly connected between the two insulating partition plates, the inner walls of the first guide pipe and the second guide pipe are both movably connected with a movable rod, the surface of the movable rod is fixedly connected with a fixed block, one end of the fixed block corresponding to the first guide pipe is fixedly connected with a first damping spring, the first damping spring is fixedly connected at one end of the first guide pipe, one end of the movable rod corresponding to the right wiring contact is fixedly connected with a, the surface of joint has seted up the joint groove, the top fixedly connected with link of right side wiring contact, the bottom fixedly connected with joint piece of the corresponding joint position of link, and the surface of joint piece and the inner wall swing joint in joint groove.
Preferably, the number of the disconnecting link is two, and the two disconnecting links are symmetrically arranged around the vertical axis of the midpoint of the left wiring contact.
Preferably, the fixed block is located between first stand pipe and the second stand pipe, first stand pipe and second stand pipe size equal, and first stand pipe and second stand pipe are equallyd divide and are cup jointed the cooperation with the movable rod respectively.
Preferably, one end of the clamping block corresponding to the clamping joint is obliquely arranged, and the other end of the clamping joint corresponding to the clamping block is smoothly arranged.
Preferably, the movable rod keeps away from the one end fixedly connected with movable block that the joint was kept away from, the top fixedly connected with connecting rod of movable block, the insulating drive ring of top fixedly connected with of connecting rod, the spacing groove has been seted up to the one end of the corresponding movable block of insulating barrier, the inner wall sliding connection of spacing groove has the stopper, and stopper fixed connection is on the surface of movable block.
Preferably, the bottom fixedly connected with insulating floor of switch, the bottom fixedly connected with bellows on insulating floor, the fixed surface of bellows is connected with the breather pipe, and the inside of breather pipe is linked together with the inside of bellows, the one end fixedly connected with breather valve of bellows is kept away from to the breather pipe.
Preferably, the bottom of the corrugated pipe is fixedly connected with an insulating support, and two ends of the insulating support are respectively and fixedly connected with the surfaces of the left insulating support and the right insulating support.
Preferably, the bottom of the insulating floor is fixedly connected with a piston rod, a piston cylinder penetrates through the inside of the insulating support corresponding to the position of the piston rod and is embedded in the insulating support, and the piston rod penetrates through and extends to the inside of the piston cylinder.
Preferably, one end of the piston rod corresponding to the position of the piston cylinder is fixedly connected with a piston, the surface of the piston is movably connected with the inner wall of the piston cylinder, the bottom of the piston is fixedly connected with a second damping spring, and the second damping spring is fixedly connected with the inner wall of the piston cylinder.
Preferably, the middle parts of the two disconnecting switches, which are far away from one end of the left wiring contact, are respectively penetrated and embedded with a fixed column, the top of the left wiring contact is fixedly connected with a fixed support, the middle part of the fixed support is fixedly connected with a pin shaft, the pin shaft is rotatably connected to one end of the disconnecting switch, and a limit pin is inserted into the surface of the fixed support.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, by rotating the disconnecting link, the disconnecting link drives the movable rod to rotate through the insulating partition plate, the first guide pipe and the second guide pipe, the movable rod drives the clamping head to rotate, the surface of the clamping block is clamped with the inner wall of the clamping groove, and the disconnecting link can be prevented from reversely rotating by matching the clamping head with the clamping groove through the clamping block, so that the disconnecting link is firmly arranged at the tops of the left wiring contact and the right wiring contact;
2. the invention also sets the movable block, the connecting rod and the insulating driving ring, so that the insulating driving ring can be pulled by one end of the manual left wiring contact, the insulating driving ring drives the clamping joint to be separated from the clamping joint through the connecting rod, the movable block and the movable rod, the clamping joint is not blocked by the clamping joint any more, namely the disconnecting link can rotate in the direction at the moment, the disconnecting link is in contact with a switching-on state, and the limiting groove and the limiting block are arranged, so that the guide effect can be realized on the movement of the movable block, and the insulating driving ring can move stably.
3. The invention also provides a corrugated pipe, a vent pipe and a vent valve, so that when the disconnecting link drives the insulating floor to rotate, the corrugated pipe is matched with the vent pipe and the vent valve to buffer the rotation of the disconnecting link, and the piston rod, the piston cylinder, the piston and the second damping spring are matched to buffer the rotation of the disconnecting link and provide power for disconnecting link opening, thereby preventing the disconnecting link from rotating downwards under the action of gravity after the disconnecting link is opened.
Drawings
Fig. 1 is a front view of the overall structure of a novel high-low voltage isolating switch of the invention;
FIG. 2 is a front sectional view of the overall structure of a novel high-low voltage isolating switch according to the invention;
FIG. 3 is a partial front sectional view of the overall structure of a novel high-low voltage isolating switch according to the invention;
FIG. 4 is a sectional view of the novel high-low voltage isolator switch structure of the present invention;
fig. 5 is a partial front sectional view of the novel high-low voltage isolator insulating bracket structure according to the invention.
In the figure: 100. a supporting seat; 101. a left insulating strut; 102. a right insulating pillar; 103. a left wiring contact; 104. a right wiring contact; 105. a disconnecting link; 106. an insulating spacer; 107. a first guide tube; 108. a second guide tube; 109. a movable rod; 110. a fixed block; 111. a first damping spring; 112. a clamping head; 113. a clamping groove; 114. a connecting frame; 115. a clamping block; 116. a movable block; 117. a connecting rod; 118. an insulated drive ring; 119. a limiting groove; 120. a limiting block; 121. an insulating floor; 122. a bellows; 123. a breather pipe; 124. a vent valve; 125. an insulating support; 126. a piston rod; 127. a piston cylinder; 128. a piston; 129. a second damping spring; 130. fixing a column; 131. a fixed support; 132. a pin shaft; 133. and a limiting pin.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: comprises a supporting seat 100, a left insulating pillar 101 and a right insulating pillar 102 are respectively fixedly installed on the top of the supporting seat 100, a left wiring contact 103 is fixedly installed on the top of the left insulating pillar 101, a right wiring contact 104 is fixedly installed on the top of the right insulating pillar 102, a disconnecting link 105 is movably arranged on the tops of the left wiring contact 103 and the right wiring contact 104, an insulating partition 106 is fixedly installed on the inner wall of the disconnecting link 105, a first guide pipe 107 and a second guide pipe 108 are fixedly installed between the two insulating partitions 106, movable rods 109 are movably connected with the inner walls of the first guide pipe 107 and the second guide pipe 108, a fixed block 110 is fixedly installed on the surface of each movable rod 109, a first damping spring 111 is fixedly installed on one end of the fixed block 110 corresponding to the first guide pipe 107, a clamping joint 112 is fixedly installed on one end of the movable rod 109 corresponding to the right wiring contact 104, the surface of the clamping head 112 is provided with a clamping groove 113, the top of the right wiring contact 104 is fixedly provided with a connecting frame 114, the bottom of the connecting frame 114 corresponding to the position of the clamping head 112 is fixedly provided with a clamping block 115, and the surface of the clamping block 115 is movably connected with the inner wall of the clamping groove 113.
The number of the disconnecting switches 105 is two, and the two disconnecting switches 105 are arranged symmetrically with respect to the vertical axis of the midpoint of the left wiring contact 103.
The fixed block 110 is located between the first guide tube 107 and the second guide tube 108, the first guide tube 107 and the second guide tube 108 have the same size, and the first guide tube 107 and the second guide tube 108 are respectively in sleeve fit with the movable rod 109.
One end of the clamping block 115 corresponding to the position of the clamping head 112 is obliquely arranged, and one end of the clamping head 112 corresponding to the position of the clamping block 115 is smoothly arranged.
A movable block 116 is fixedly arranged at one end of the movable rod 109 far away from the clamp joint 112, a connecting rod 117 is fixedly arranged at the top of the movable block 116, an insulating driving ring 118 is fixedly arranged at the top of the connecting rod 117, a limit groove 119 is arranged at one end of the insulating partition 106 corresponding to the movable block 116, a limit block 120 is connected to the inner wall of the limit groove 119 in a sliding manner, the limit block 120 is fixedly arranged on the surface of the movable block 116, the insulating driving ring 118 can be pulled by manually pulling one end of the left wiring contact 103 through the movable block 116, the insulating driving ring 118 drives the clamp joint 112 to be separated from the clamp joint 115 through the connecting rod 117, the movable block 116 and the movable rod 109, so that the clamp joint 112 is no longer blocked by the clamp joint 115, namely the knife brake 105 can rotate in the direction at the moment, the contact switching-on state is realized, and the guide effect can be realized through the, so that the insulating drive ring 118 can be smoothly moved.
An insulating floor 121 is fixedly installed at the bottom of the disconnecting link 105, a corrugated pipe 122 is fixedly installed at the bottom of the insulating floor 121, a vent pipe 123 is fixedly installed on the surface of the corrugated pipe 122, the interior of the vent pipe 123 is communicated with the interior of the corrugated pipe 122, and a vent valve 124 is fixedly installed at one end, far away from the corrugated pipe 122, of the vent pipe 123.
An insulating support 125 is fixedly mounted at the bottom of the bellows 122, and two ends of the insulating support 125 are fixedly mounted with the surfaces of the left insulating pillar 101 and the right insulating pillar 102, respectively.
The bottom of the insulating floor 121 is fixedly provided with a piston rod 126, the inside of the insulating bracket 125 corresponding to the position of the piston rod 126 is penetrated and embedded with a piston cylinder 127, and the piston rod 126 penetrates and extends to the inside of the piston cylinder 127.
The piston 128 is fixedly installed at one end of the piston rod 126 corresponding to the position of the piston cylinder 127, the surface of the piston 128 is movably connected with the inner wall of the piston cylinder 127, the second damping spring 129 is fixedly installed at the bottom of the piston 128, the second damping spring 129 is fixedly installed on the inner wall of the piston cylinder 127, the corrugated pipe 122, the vent pipe 123 and the vent valve 124 are arranged, so that when the knife switch 105 drives the insulating floor 121 to rotate, the corrugated pipe 122 is matched with the vent pipe 123 and the vent valve 124 to buffer the rotation of the knife switch 105, and the piston rod 126, the piston cylinder 127, the piston 128 and the second damping spring 129 are matched to buffer the rotation of the knife switch 105 and provide power for the opening of the knife switch 105, so that the knife switch 105 is prevented from rotating downwards under the action of gravity after the opening of the knife switch 105.
The middle part of two switches 105, which is far away from one end of the left wiring contact 103, is all penetrated and embedded with a fixing column 130, the top of the left wiring contact 103 is fixedly provided with a fixing support 131, the middle part of the fixing support 131 is fixedly provided with a pin shaft 132, the pin shaft 132 is rotatably connected to one end of the switch 105, and a limit pin 133 is inserted into the surface of the fixing support 131.
The working principle is as follows: when the device is used, the top of one end of the left insulating support 101 is used as a rotating shaft to rotate the knife switch 105, so that the knife switch 105 drives the movable rod 109 to rotate by taking the top of one end of the left insulating support 101 as a rotating shaft through the insulating partition 106, the first guide pipe 107 and the second guide pipe 108, the movable rod 109 drives the clamping joint 112 to extrude the clamping block 115, one end of the clamping block 115 corresponding to the clamping joint 112 is obliquely arranged, one end of the clamping joint 112 corresponding to the clamping block 115 is smoothly arranged, so that under the guiding action of the clamping block 115, the clamping joint 112 drives the fixed block 110 to extrude the first damping spring 111 through the movable rod 109, the clamping joint 112 tightly clings to the surface of the clamping block 115 to move downwards until the clamping joint 112 moves to the bottom of the clamping block 115, and at the moment, under the action of the resetting and stretching of the first damping spring 111, the first guide pipe 107 and the fixed block 110 are matched to drive the movable rod 109 to move to one end of the clamping block 115, until the surface of the clamping block 115 is clamped with the inner wall of the clamping groove 113, the disconnecting link 105 can be prevented from reversely rotating by the clamping block 115 matching with the clamping joint 112 and the clamping groove 113, and therefore the disconnecting link 105 is firmly arranged at the tops of the left wiring contact 103 and the right wiring contact 104.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. The utility model provides a novel high-low voltage isolator, includes supporting seat (100), its characterized in that: the top of the supporting seat (100) is fixedly connected with a left insulating support column (101) and a right insulating support column (102) respectively, the top of the left insulating support column (101) is fixedly connected with a left wiring contact (103), the top of the right insulating support column (102) is fixedly connected with a right wiring contact (104), the tops of the left wiring contact (103) and the right wiring contact (104) are movably provided with a disconnecting link (105), the inner wall of the disconnecting link (105) is fixedly connected with an insulating partition plate (106), a first guide pipe (107) and a second guide pipe (108) are fixedly connected between the two insulating partition plates (106), the inner walls of the first guide pipe (107) and the second guide pipe (108) are movably connected with a movable rod (109), the surface of the movable rod (109) is fixedly connected with a fixed block (110), and one end of the fixed block (110) corresponding to the first guide pipe (107) is fixedly connected with a first damping spring (111), and first damping spring (111) fixed connection is in the one end of first stand pipe (107), the one end fixedly connected with joint (112) of the corresponding right side of movable rod (109) wiring contact (104), joint groove (113) have been seted up on the surface of joint (112), top fixedly connected with link (114) of right side wiring contact (104), the bottom fixedly connected with joint piece (115) of the corresponding joint (112) position of link (114), and the inner wall swing joint of the surface of joint piece (115) and joint groove (113).
2. The novel high-low voltage isolating switch according to claim 1, characterized in that: the number of the disconnecting links (105) is two, and the two disconnecting links (105) are symmetrically arranged relative to the vertical axis of the midpoint of the left wiring contact (103).
3. The novel high-low voltage isolating switch according to claim 1, characterized in that: fixed block (110) are located between first stand pipe (107) and second stand pipe (108), first stand pipe (107) and second stand pipe (108) size equals, and first stand pipe (107) and second stand pipe (108) are equallyd divide and are do not cup jointed the cooperation with movable rod (109).
4. The novel high-low voltage isolating switch according to claim 1, characterized in that: one end of the clamping block (115) corresponding to the clamping head (112) is obliquely arranged, and one end of the clamping head (112) corresponding to the clamping block (115) is smoothly arranged.
5. The novel high-low voltage isolating switch according to claim 1, characterized in that: the one end fixedly connected with movable block (116) of joint (112) is kept away from in movable rod (109), the top fixedly connected with connecting rod (117) of movable block (116), the insulating drive ring of top fixedly connected with (118) of connecting rod (117), spacing groove (119) have been seted up to the one end of the corresponding movable block (116) of insulating barrier (106), the inner wall sliding connection of spacing groove (119) has stopper (120), and stopper (120) fixed connection is on the surface of movable block (116).
6. The novel high-low voltage isolating switch according to claim 1, characterized in that: the bottom fixedly connected with insulating floor (121) of switch (105), the bottom fixedly connected with bellows (122) on insulating floor (121), the fixed surface of bellows (122) is connected with breather pipe (123), and the inside of breather pipe (123) is linked together with the inside of bellows (122), the one end fixedly connected with breather valve (124) of bellows (122) are kept away from in breather pipe (123).
7. The novel high-low voltage isolating switch according to claim 1, characterized in that: the bottom of the corrugated pipe (122) is fixedly connected with an insulating support (125), and two ends of the insulating support (125) are fixedly connected with the surfaces of the left insulating support (101) and the right insulating support (102) respectively.
8. The novel high-low voltage isolating switch according to claim 7, characterized in that: the bottom of the insulating floor (121) is fixedly connected with a piston rod (126), a piston cylinder (127) penetrates through the inside of the insulating support (125) corresponding to the position of the piston rod (126), and the piston rod (126) penetrates through and extends to the inside of the piston cylinder (127).
9. The novel high-low voltage isolation switch according to claim 8, characterized in that: one end of the piston rod (126) corresponding to the position of the piston cylinder (127) is fixedly connected with a piston (128), the surface of the piston (128) is movably connected with the inner wall of the piston cylinder (127), the bottom of the piston (128) is fixedly connected with a second damping spring (129), and the second damping spring (129) is fixedly connected with the inner wall of the piston cylinder (127).
10. The novel high-low voltage isolating switch according to claim 1, characterized in that: two fixed columns (130) are respectively penetrated and embedded in the middle of one end, away from the left wiring contact (103), of the disconnecting link (105), a fixed support (131) is fixedly connected to the top of the left wiring contact (103), a pin shaft (132) is fixedly connected to the middle of the fixed support (131), the pin shaft (132) is rotatably connected to one end of the disconnecting link (105), and a limit pin (133) is inserted into the surface of the fixed support (131).
CN202010492906.5A 2020-06-03 2020-06-03 Novel high-low voltage isolating switch Withdrawn CN111627745A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010492906.5A CN111627745A (en) 2020-06-03 2020-06-03 Novel high-low voltage isolating switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010492906.5A CN111627745A (en) 2020-06-03 2020-06-03 Novel high-low voltage isolating switch

Publications (1)

Publication Number Publication Date
CN111627745A true CN111627745A (en) 2020-09-04

Family

ID=72260328

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010492906.5A Withdrawn CN111627745A (en) 2020-06-03 2020-06-03 Novel high-low voltage isolating switch

Country Status (1)

Country Link
CN (1) CN111627745A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112201514A (en) * 2020-09-29 2021-01-08 广东电网有限责任公司 Manual-automatic integrated breaking and connecting device
CN113140424A (en) * 2021-04-15 2021-07-20 国网山东省电力公司枣庄供电公司 Overload driving prevention isolating switch

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112201514A (en) * 2020-09-29 2021-01-08 广东电网有限责任公司 Manual-automatic integrated breaking and connecting device
CN113140424A (en) * 2021-04-15 2021-07-20 国网山东省电力公司枣庄供电公司 Overload driving prevention isolating switch

Similar Documents

Publication Publication Date Title
CN111627745A (en) Novel high-low voltage isolating switch
CN103219190B (en) +/-1100kV high-voltage direct current disconnecting switch
CN109830911A (en) The gas-insulating and fully-enclosed all insulation looped network switch apparatus of novel environment friendly
CN205863077U (en) A kind of tri-station isolating switch
CN110729657A (en) Environment-friendly inflating cabinet
CN202172041U (en) High voltage permanent magnet vacuum circuit breaker on outdoor post
CN202650955U (en) Outdoor high-voltage vacuum circuit breaker
CN209282710U (en) The gas-insulating and fully-enclosed all insulation looped network switch apparatus of novel environment friendly
CN213180627U (en) Stress detection device for acceptance check of column type porcelain insulator
CN202939878U (en) Circuit switching device of 10kV distribution network demonstration system
CN201087893Y (en) GW45-800KV isolating switch
CN210378867U (en) Vertical action isolating switch
CN220322707U (en) Simulation pole for mechanical grinding of switch cabinet circuit breaker transmission mechanism
CN112736692A (en) Indoor gas-insulated fully-sealed switch equipment with high sealing performance
CN205666176U (en) Wall -hanging three -phase longitudinal arrangement's middling pressure vacuum load switch
CN201742016U (en) High-voltage metering handcart
CN201750073U (en) Combined electrical apparatus for 35KV outdoor voltage transformer
CN102394194B (en) Isolation switch conductor
CN111755280A (en) Double-column rotary isolating switch
CN106252153B (en) A kind of high-pressure AC vacuum contactor
CN216773151U (en) Circuit breaker mounting rack convenient to dismouting
CN108682592B (en) Isolating switch and mounting rack thereof
CN213905226U (en) Outdoor 12kV socket type closed isolating switch
CN213905225U (en) Isolating switch with limiting device
CN218447699U (en) Vacuum contactor for inflating cabinet

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WW01 Invention patent application withdrawn after publication
WW01 Invention patent application withdrawn after publication

Application publication date: 20200904