CN109361168A - A kind of protective device for gas-filling cabinet - Google Patents

A kind of protective device for gas-filling cabinet Download PDF

Info

Publication number
CN109361168A
CN109361168A CN201811525783.XA CN201811525783A CN109361168A CN 109361168 A CN109361168 A CN 109361168A CN 201811525783 A CN201811525783 A CN 201811525783A CN 109361168 A CN109361168 A CN 109361168A
Authority
CN
China
Prior art keywords
voltage transformer
rack
gas
protective device
gear unit
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.)
Granted
Application number
CN201811525783.XA
Other languages
Chinese (zh)
Other versions
CN109361168B (en
Inventor
宋宸彬
陈添旭
吴良云
林艳艳
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.)
ZHONGNENG ELECTRIC CO Ltd FUJIAN
Original Assignee
ZHONGNENG ELECTRIC CO Ltd FUJIAN
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 ZHONGNENG ELECTRIC CO Ltd FUJIAN filed Critical ZHONGNENG ELECTRIC CO Ltd FUJIAN
Priority to CN201811525783.XA priority Critical patent/CN109361168B/en
Publication of CN109361168A publication Critical patent/CN109361168A/en
Application granted granted Critical
Publication of CN109361168B publication Critical patent/CN109361168B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B13/00Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle
    • H02B13/02Arrangement of switchgear in which switches are enclosed in, or structurally associated with, a casing, e.g. cubicle with metal casing
    • H02B13/025Safety arrangements, e.g. in case of excessive pressure or fire due to electrical defect
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H33/00High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
    • H01H33/60Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
    • H01H33/66Vacuum switches
    • H01H33/666Operating arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Gas-Insulated Switchgears (AREA)

Abstract

The present invention discloses a kind of protective device for gas-filling cabinet, including voltage transformer, protection mechanism, breaker mechanism and rack, and protection mechanism includes conduct piece, gear unit and driving unit.By using voltage transformer in the electrical connection of breaker, gas-filling cabinet is tested.Since voltage transformer is used to measure the voltage, power and electric energy of route, or for expensive equipment, motor and the transformer in line failure in protection circuit, therefore the capacity very little of voltage transformer.However in experiment, voltage generally kilovolt-ampere or the capacity of megavolt-ampere exported, therefore the case where be easy to cause voltage transformer to be punctured in an experiment by electric current, voltage transformer caused to be scrapped.Therefore, by providing protection to voltage transformer, guaranteeing the service life of voltage transformer, reduce cost when experiment to a protection mechanism is arranged between voltage transformer and breaker mechanism.

Description

A kind of protective device for gas-filling cabinet
Technical field
The present invention relates to gas-filling cabinet field more particularly to a kind of protective devices for gas-filling cabinet.
Background technique
The voltage transformer of existing gas-filling cabinet is typically all to use copper wire as conductor wire, by breaker and mutual induction of voltage Device is electrically connected.During the test, it in the case where testing using industrial frequency withstand voltage, lightning impulse etc., is very easy to cause Situations such as voltage transformer is breakdown, and voltage transformer is caused to be scrapped.Because voltage transformer is to be connected to gas tank by inner cone Inside, and gas tank is to be filled with gas inside sealing state, so can not unpack immediately to cut off breaker and voltage transformer Electrical connection, during the test extremely be easy breakdown, scrap.
Summary of the invention
For this reason, it may be necessary to provide a kind of protective device for gas-filling cabinet, public affairs are carried out in whole cabinet to solve voltage transformer When the current testings such as frequency pressure resistance, lightning impulse, it cutting can be connected outside gas tank, carry out correlated current test, ensure that Voltage transformer during the test will not breakdown, the case where even scrapping.
To achieve the above object, a kind of protective device for gas-filling cabinet is inventor provided, including voltage transformer, anti- Protect mechanism, breaker mechanism and rack;Breaker mechanism is arranged on the medial surface of rack, and rack is arranged in voltage transformer On top surface;The protection mechanism includes conduct piece, gear unit and driving unit, and gear unit one end is arranged on conduct piece, Conduct piece is arranged between the end of breaker mechanism and rack, the mobilizable side that rack is arranged in of the other end of gear unit On wall, driving unit is arranged on the lateral surface of rack, and driving unit is led for gear unit to be connect and driven with gear unit One end of electric part is arranged on the driving end of gear unit, and conduct piece is used to voltage transformer and breaker mechanism carrying out conductance On-off starts work.
Further, the conduct piece includes copper wire, static contact and blade, and one end of the static contact is arranged in breaker End on, the other end of static contact connects or separates setting for one end of gear unit, and one end of copper wire, which is arranged, to be driven On one end of unit, one end of copper wire is arranged on blade, and one end of blade is hingedly arranged on static contact.
Further, the gear unit includes transmission shaft, connecting lever linkage unit and blade, and machine is run through in one end of transmission shaft The side wall of frame is arranged, and one end of connecting lever linkage unit is arranged on the other end of transmission shaft, and the other end of connecting lever linkage unit is set It sets on blade.
Further, the connecting lever linkage unit includes the first connecting lever, the second connecting lever, connecting rod, insulation square shaft and fixation Bracket, first connecting lever are set on transmission shaft, and the second connecting lever is set on insulation square shaft, and connecting rod is arranged in the first connecting lever Between the second connecting lever, insulating square axle sleeve is located on fixed bracket, and blade setting is on insulation square shaft.
Further, the gear unit is additionally provided with dynamic sealing bearing block, and the side of rack is arranged in dynamic sealing bearing block On wall, driving sleeve is located in dynamic sealing bearing block.
Further, heat radiating slot is provided on the knife face of the blade.
Further, the breaker mechanism includes clamping plate type fixed frame, insulated pull rod, vacuum interrupter and operation machine Case, operation cabinet are arranged on the rack, and insulated pull rod and vacuum interrupter are successively set on clamping plate type fixed frame, insulated pull rod It is arranged on the output end of operation cabinet with bellows one end, the end of vacuum interrupter is electrically connected setting with conductive sheet.
Further, the conducting end of the voltage transformer is provided with inner cone connecting shaft and conductive static contact, the conduction Static contact is arranged in the conducting end of inner cone connecting shaft, and the side wall and voltage transformer of rack are run through in the connecting pin of inner cone connecting shaft Electrical connection setting, and inner cone connecting shaft is between breaker and rack.
Be different from the prior art, above-mentioned technical proposal by using voltage transformer in the electrical connection of breaker, to inflation Cabinet is tested.Since voltage transformer is used to measure the voltage, power and electric energy of route, or it is used in line failure When protection circuit in expensive equipment, motor and transformer, therefore the capacity very little of voltage transformer generally all only has several volts Peace, tens volt-amperes, it is maximum to be also no more than one kilovolt-ampere.However experiment when, voltage generally kilovolt-ampere or megavolt-ampere appearance The case where measuring and exported, therefore being easy to cause voltage transformer to be punctured in an experiment by electric current, voltage transformer is caused to be scrapped. Therefore, by providing protection to voltage transformer, protecting to a protection mechanism is arranged between voltage transformer and breaker mechanism The service life of voltage transformer is demonstrate,proved, cost when experiment is reduced.
Detailed description of the invention
Fig. 1 is the schematic diagram described in specific embodiment for the protective device of gas-filling cabinet;
Fig. 2 is the partial schematic diagram described in specific embodiment for the protective device of gas-filling cabinet.
Description of symbols:
10, voltage transformer;101 inner cone connecting shafts;102, conductive static contact;
20, protection mechanism;21, conduct piece;22, gear unit;23, driving unit;
211, copper wire;212, static contact;221, transmission shaft;222, connecting lever linkage unit;
223, blade;224, dynamic sealing bearing block;2231, heat radiating slot;2221, the first connecting lever;
2222, the second connecting lever;2223, connecting rod;2224, insulate square shaft;2225, fixed bracket;
30, breaker mechanism;31, clamping plate type fixed frame;32, insulated pull rod;
33, vacuum interrupter;34, cabinet is operated;
40, rack;
Specific embodiment
Technology contents, construction feature, the objects and the effects for detailed description technical solution, below in conjunction with specific reality It applies example and attached drawing is cooperated to be explained in detail.
Fig. 1 and Fig. 2 are please referred to, the present embodiment provides a kind of protective device for gas-filling cabinet, including voltage transformer 10, Protection mechanism 20, breaker mechanism 30 and rack 40;Breaker mechanism is arranged on the medial surface of rack, voltage transformer setting On the top surface of rack;The protection mechanism includes conduct piece 21, gear unit 22 and driving unit 23, and gear unit one end is set It sets on conduct piece, conduct piece is arranged between the end of breaker mechanism and rack, and the other end of gear unit is mobilizable It is arranged on the side wall of rack, driving unit is arranged on the lateral surface of rack, and driving unit with gear unit for connecting simultaneously Gear unit is driven, one end of conduct piece is arranged on the driving end of gear unit, and conduct piece is used for voltage transformer and breaks Road device mechanism is conducted or disconnection movement.
Gas-filling cabinet is tested in the electrical connection of breaker by using voltage transformer in the present embodiment, such as: it is public The current testings such as frequency pressure resistance, lightning impulse.However experiment when, due to voltage it is higher cause voltage transformer in an experiment by The case where electric current punctures, and voltage transformer is caused to be scrapped.Therefore, by one is arranged between voltage transformer and breaker mechanism A protection mechanism, and then voltage transformer is protected, improve the service life of voltage transformer.
Specifically, breaker mechanism is fixed in the frame body of rack, voltage transformer is then mounted on the outside of rack On face, the inner cone connector of voltage transformer runs through the side wall of rack, so that the inner cone connector of voltage transformer is located at rack Inside, and be located between the vacuum interrupter end of breaker mechanism and the inner sidewall of rack.And protection mechanism is located at breaker On the end of the vacuum interrupter direction of mechanism, driving unit is arranged on the frame side wall of the direction, and the one of gear unit On the end for holding the vacuum interrupter that breaker is arranged in, and the other end is then mounted on gear unit, and then single by transmission The power of member conveying drives the conduct piece rotation being located on gear unit, so that the inner cone connecting shaft of conduct piece and voltage transformer It is in contact or separates, i.e., breaker mechanism and voltage transformer are electrically connected and are disconnected by conduct piece, play electric brake Effect.Driving unit, is installed on the outside of rack by the power resources and driving unit of conduct piece, therefore when detecting, is not necessarily to It can be reached by dismantling rack from outside disconnection, and driving unit can be servo motor, be kept away by the transmission of motor Exempt from the risk got an electric shock when manual disconnection, improves the safety of protective device.It can be broken down by protection mechanism In first time, voltage transformer and breaker mechanism are disconnected, reached when carrying out correlated current test, guarantees that voltage is mutual Sensor during the test will not breakdown, the case where even scrapping purpose.
Voltage transformer (Potential transformer abbreviation PT, Voltage transformer also abbreviation VT) and Transformer is similar, is the instrument of the voltage on conversion line.But the purpose of transformer voltage of transformation is to convey electricity Can, therefore capacity is very big, typically using kilovolt-ampere or megavolt-ampere as unit of account;And the mesh of voltage transformer voltage of transformation , it is primarily used to power to measuring instrumentss and protective relaying device, for measuring the voltage, power and electric energy of route, or For expensive equipment, motor and the transformer in line failure in protection circuit, therefore the capacity of voltage transformer is very It is small, generally all there was only several volt-amperes, tens volt-amperes, it is maximum to be also no more than one kilovolt-ampere.
The basic structure and transformer of voltage transformer are much like, and, also there are two winding, one is first winding for it, and one It is secondary winding.Two windings are incorporated into or are wound on iron core.There is insulation between two windings and between winding and iron core, Make have electrical isolation between two windings and between winding and iron core.At runtime, first winding is in parallel for voltage transformer It connects on the line, secondary winding simultaneously couples instrument or relay.Therefore when measuring the voltage on high-tension line, although primary electricity Pressure is very high, but secondary is low pressure, it can be ensured that the safety of operator and instrument.
Conduct piece includes copper wire 211 and static contact 212 in the present embodiment, and breaker is arranged in one end of the static contact On end, the other end of static contact is used to connect or separate setting with one end of gear unit, and one end setting of copper wire is being driven On one end of unit, one end of copper wire is arranged on blade, and one end of blade is hingedly arranged on static contact.The gear unit Including transmission shaft 221, connecting lever linkage unit 222 and blade 223, one end of transmission shaft is arranged through the side wall of rack, and connecting lever connects One end of bar unit is arranged on the other end of transmission shaft, and the other end of connecting lever linkage unit is arranged on blade.The connecting lever Linkage unit includes the first connecting lever 2221, the second connecting lever 2222, connecting rod 2223, insulation square shaft 2224 and fixes bracket 2225, First connecting lever is set on transmission shaft, and the second connecting lever is set on insulation square shaft, and connecting rod setting is in the first connecting lever and the Between two connecting levers, insulating square axle sleeve is located on fixed bracket, and blade setting is on insulation square shaft.
When power is sent to connecting lever linkage unit by transmission shaft, connecting lever connection unit drives blade rotation, then makes It obtains blade and copper wire rotates, so that copper wire is connected with each other or separates with the inner cone connecting shaft of voltage transformer.And blade and stationary contact It can be hingedly arranged by bolt and nut between piece.Specifically, the rotation of the first connecting lever is driven when driving unit provides power, First connecting lever pulls connecting rod to drive the rotation of the second connecting lever, so that the insulation square shaft rotation being fixed on the second connecting lever, i.e. insulating square Center axis thereof of the axis around ontology.When the square shaft that insulate rotates on fixed bracket, blade rotation will drive, so that The inner cone connecting shaft of copper wire and voltage transformer on blade is attached or disconnects.Because being carried out by the way of mechanical linkage Transmission, it is ensured that fixed force when connection is stablized, and copper wire is detached from when will not be there is a situation where detecting, therefore improves connection Stability, and the square shaft that insulate is made of insulating materials, such as plastics, timber or enamel-cover aluminium etc. material, effectively Current direction gear unit has been obstructed, the safety of protective device is improved.
Gear unit described in the present embodiment is additionally provided with dynamic sealing bearing block 224, and dynamic sealing bearing block is arranged in rack Side wall on, driving sleeve is located in dynamic sealing bearing block.By dynamic sealing bearing block by the transferring kinetic energy of power unit extremely While transmission shaft, it ensure that the leakproofness of machine frame inside is complete, improve the practicability of protective device.
Heat radiating slot 2231 is provided on the knife face of blade described in the present embodiment.It can be examined in conduction by radiating groove control It when survey, effectively radiates, so that the junction between copper wire and blade will not be improved since overheat is there is a situation where burning The service life of blade.
The conducting end of voltage transformer is provided with inner cone connecting shaft 101 and conductive static contact 102 in the present embodiment, described to lead Electric static contact is arranged in the conducting end of inner cone connecting shaft, and the side wall and mutual induction of voltage of rack are run through in the connecting pin of inner cone connecting shaft Device electrical connection setting, and inner cone connecting shaft is between breaker and rack.
Run through frame side wall by inner cone connecting shaft, so that being able in rack between breaker mechanism and voltage transformer Portion is electrically connected, and is avoided protective device from being exposed to Shelf External, while can guarantee the leakproofness of machine frame inside, is avoided detecting Personnel, which accidentally touch, occurs accident for the protective device contact of gas-filling cabinet, improves its safety.It is arranged in inner cone connecting shaft a piece of Convenient for connecting conduction with copper wire, for the ease of fixing clamp copper wire, a V word can be arranged in conductive static contact on static contact The card slot of type, so that copper wire is not easy to disengage, improves the stability of connection so that copper wire clamp is clipped in V-shape card slot.
Breaker mechanism described in the present embodiment includes clamping plate type fixed frame 31, insulated pull rod 32,33 and of vacuum interrupter Cabinet 34 is operated, operation cabinet is arranged on the rack, and insulated pull rod and vacuum interrupter are successively set on clamping plate type fixed frame, There is insulated pull rod bellows one end to be arranged on the output end of operation cabinet, and the end of vacuum interrupter is electrically connected with conductive sheet Setting.
Breaker is that insulated pull rod and vacuum interrupter is fixed using the structure of clamping plate type fixed frame, so that fixed exhausted Edge pull rod and vacuum interrupter can arrange along straight line, and because when turning off union operation, insulated pull rod is by vacuum The indoor conductor wire of arc extinguishing disconnects, and is mesohigh electric current due to being connected in power supply line, is easy to produce when merging and disconnecting Electric arc, therefore arc extinguishing is carried out by vacuum interrupter, it avoids the device of machine frame inside from being electrically shocked damage, improves the reality of protective device The property used.
It should be noted that being not intended to limit although the various embodiments described above have been described herein Scope of patent protection of the invention.Therefore, it based on innovative idea of the invention, change that embodiment described herein is carried out and is repaired Change, or using equivalent structure or equivalent flow shift made by description of the invention and accompanying drawing content, it directly or indirectly will be with Upper technical solution is used in other related technical areas, is included within scope of patent protection of the invention.

Claims (8)

1. a kind of protective device for gas-filling cabinet, it is characterised in that: including voltage transformer, protection mechanism, breaker mechanism And rack;
Breaker mechanism is arranged on the medial surface of rack, and voltage transformer is arranged on the top surface of rack;
The protection mechanism includes conduct piece, gear unit and driving unit, and gear unit one end is arranged on conduct piece, conductive Part is arranged between the end of breaker mechanism and rack, the mobilizable side wall that rack is arranged in of the other end of gear unit On, driving unit is arranged on the lateral surface of rack, and driving unit is conductive for gear unit to be connect and driven with gear unit One end of part is arranged on the driving end of gear unit, and conduct piece is for conducting voltage transformer and breaker mechanism Or disconnection movement.
2. a kind of protective device for gas-filling cabinet according to claim 1, it is characterised in that: the conduct piece includes copper One end of line, static contact and blade, the static contact is arranged on the end of breaker, and the other end of static contact is for being driven list One end of member connects or separates setting, and one end of copper wire is arranged on one end of gear unit, and one end of copper wire is arranged in blade On, one end of blade is hingedly arranged on static contact.
3. a kind of protective device for gas-filling cabinet according to claim 2, it is characterised in that: the gear unit includes One end of transmission shaft, connecting lever linkage unit and blade, transmission shaft is arranged through the side wall of rack, and one end of connecting lever linkage unit is set It sets on the other end of transmission shaft, the other end of connecting lever linkage unit is arranged on blade.
4. a kind of protective device for gas-filling cabinet according to claim 3, it is characterised in that: the connecting lever linkage unit It is set on transmission shaft including the first connecting lever, the second connecting lever, connecting rod, insulation square shaft and fixed bracket, first connecting lever, the Two connecting levers are set on insulation square shaft, and connecting rod is arranged between the first connecting lever and the second connecting lever, and insulating square axle sleeve is located at fixation On bracket, blade setting is on insulation square shaft.
5. a kind of protective device for gas-filling cabinet according to claim 3, it is characterised in that: the gear unit is also set It is equipped with dynamic sealing bearing block, dynamic sealing bearing block is arranged on the side wall of rack, and driving sleeve is located in dynamic sealing bearing block.
6. a kind of protective device for gas-filling cabinet according to claim 3, it is characterised in that: on the knife face of the blade It is provided with heat radiating slot.
7. a kind of protective device for gas-filling cabinet according to claim 1, it is characterised in that: the breaker mechanism packet Include clamping plate type fixed frame, insulated pull rod, vacuum interrupter and operation cabinet, operation cabinet be arranged on the rack, insulated pull rod and Vacuum interrupter is successively set on clamping plate type fixed frame, the output that there is insulated pull rod bellows one end operation cabinet is arranged in On end, the end of vacuum interrupter is electrically connected setting with conductive sheet.
8. a kind of protective device for gas-filling cabinet according to claim 1, it is characterised in that: the voltage transformer Conducting end is provided with inner cone connecting shaft and conductive static contact, and the conduction static contact is arranged in the conducting end of inner cone connecting shaft, The connecting pin of inner cone connecting shaft is electrically connected setting with voltage transformer through the side wall of rack, and inner cone connecting shaft is located at breaker Between rack.
CN201811525783.XA 2018-12-13 2018-12-13 Protective device for air charging cabinet Active CN109361168B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811525783.XA CN109361168B (en) 2018-12-13 2018-12-13 Protective device for air charging cabinet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811525783.XA CN109361168B (en) 2018-12-13 2018-12-13 Protective device for air charging cabinet

Publications (2)

Publication Number Publication Date
CN109361168A true CN109361168A (en) 2019-02-19
CN109361168B CN109361168B (en) 2023-11-28

Family

ID=65329692

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811525783.XA Active CN109361168B (en) 2018-12-13 2018-12-13 Protective device for air charging cabinet

Country Status (1)

Country Link
CN (1) CN109361168B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110556263A (en) * 2019-08-31 2019-12-10 武汉倍诺德开关有限公司 40.5kV aerifys cabinet drive mechanism

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB337032A (en) * 1929-07-25 1930-10-27 Reyrolle A & Co Ltd Improvements in or relating to the automatic or semi-automatic control of synchronous dynamo-electric machinery
CN200986882Y (en) * 2006-12-14 2007-12-05 浙江宏秀电气有限公司 Intelligent outdoor high-voltage vacuum circuit breaker dual-power supply isolation switch combined electrical equipment
CN102882148A (en) * 2012-10-23 2013-01-16 福建中能电气股份有限公司 Solid insulation switch
CN105845491A (en) * 2016-04-25 2016-08-10 信尔德科技有限公司 Intelligent high-voltage dual-power vacuum circuit breaker
CN108417436A (en) * 2018-03-09 2018-08-17 陈秀珍 A kind of driving device of high-tension Vacuum switch
CN209071940U (en) * 2018-12-13 2019-07-05 福建中能电气有限公司 A kind of protective device for gas-filling cabinet

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB337032A (en) * 1929-07-25 1930-10-27 Reyrolle A & Co Ltd Improvements in or relating to the automatic or semi-automatic control of synchronous dynamo-electric machinery
CN200986882Y (en) * 2006-12-14 2007-12-05 浙江宏秀电气有限公司 Intelligent outdoor high-voltage vacuum circuit breaker dual-power supply isolation switch combined electrical equipment
CN102882148A (en) * 2012-10-23 2013-01-16 福建中能电气股份有限公司 Solid insulation switch
CN105845491A (en) * 2016-04-25 2016-08-10 信尔德科技有限公司 Intelligent high-voltage dual-power vacuum circuit breaker
CN108417436A (en) * 2018-03-09 2018-08-17 陈秀珍 A kind of driving device of high-tension Vacuum switch
CN209071940U (en) * 2018-12-13 2019-07-05 福建中能电气有限公司 A kind of protective device for gas-filling cabinet

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110556263A (en) * 2019-08-31 2019-12-10 武汉倍诺德开关有限公司 40.5kV aerifys cabinet drive mechanism

Also Published As

Publication number Publication date
CN109361168B (en) 2023-11-28

Similar Documents

Publication Publication Date Title
JP4268991B2 (en) Vacuum insulated switchgear
JP2003523067A (en) A device having a fuel cell for power generation and distributing power to a load
CN207474334U (en) A kind of isolation circuit breakers for dry air insulation ring main unit
US9425589B2 (en) Gas-insulated switchgear
CN102759664A (en) Detection device for insulation resistance of electrical equipment
CN104600597A (en) Motor train unit high pressure equipment box and motor train unit
JP5546338B2 (en) Gas insulated instrument transformer
CN209071940U (en) A kind of protective device for gas-filling cabinet
SE1351510A1 (en) Device for the protection of an electrical appliance supplied by a multi-phase network
CN109361168A (en) A kind of protective device for gas-filling cabinet
KR20130000620A (en) Gas-insulated medium-voltage switchgear
CN105742965A (en) Switchboard With Position-Indicating Apparatus
CN105703257B (en) Solid insulation ring main unit
KR20060119402A (en) Epoxy mold insulated multi switch and switchgear for underground power line
CN116073274A (en) Air type environment-friendly breaker cabinet
JP2010087045A (en) Transformer for gas insulated meter
CN209748042U (en) Gas-insulated metal-enclosed switchgear with upper and lower gas box structures
US10614970B2 (en) Switchgear having earth switch
CN207381310U (en) Vacuum load switch-fuse combined electrical equipment
CN105720510A (en) Solid insulation metal-enclosed switchgear
JP2016046843A (en) Circuit breaker for electric power
WO2017122442A1 (en) Power device
CN203119374U (en) Miniaturized split solid insulation ring main unit
CN212111493U (en) System for testing gas box
CN203278708U (en) Novel F-C loop configuration circuit

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
GR01 Patent grant
GR01 Patent grant