CN106449267A - Plug, insulating pull rod component, protection method of insulating pull rod component and arc extinguish chamber - Google Patents
Plug, insulating pull rod component, protection method of insulating pull rod component and arc extinguish chamber Download PDFInfo
- Publication number
- CN106449267A CN106449267A CN201611003092.4A CN201611003092A CN106449267A CN 106449267 A CN106449267 A CN 106449267A CN 201611003092 A CN201611003092 A CN 201611003092A CN 106449267 A CN106449267 A CN 106449267A
- Authority
- CN
- China
- Prior art keywords
- connector
- pull bar
- tension pole
- insulated tension
- iron
- 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
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
- H01H33/72—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid having stationary parts for directing the flow of arc-extinguishing fluid, e.g. arc-extinguishing chamber
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/42—Driving mechanisms
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/02—Details
- H01H33/53—Cases; Reservoirs, tanks, piping or valves, for arc-extinguishing fluid; Accessories therefor, e.g. safety arrangements, pressure relief devices
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Circuit Breakers (AREA)
Abstract
The invention provides a plug, an insulating pull rod component, a protection method of the insulating pull rod component and an arc extinguish chamber. The plug comprises a connection portion and a retaining portion, the connection portion is used for connection with a connector of an insulating pull rod of the insulating pull rod component, and the retaining portion is used for entering an inner hole of an iron pull rod of the insulating pull rod component along with the connector to match with the hole wall of the iron pull rod so as to prevent internal hot air flow in the iron pull rod from causing impact after flowing towards the connector. Since the plug with the retaining portion is connected to the connector, high-speed high-temperature high-pressure hot air flow generated in an opening process can be intercepted by the retaining portion when flowing towards the connector along the interior of the iron pull rod to cause impact, and accordingly direct impact of the hot air flow to a joint of the connector and the iron pull rod is avoided, the joint is protected effectively, erosion and fusion welding are avoided, tripping of the iron pull rod and the insulating pull rod is avoided, and normality in operation of the arc extinguish chamber is guaranteed.
Description
Technical field
The present invention relates to a kind of plug, insulated tension pole assembly and its means of defence, arc-chutes.
Background technology
In GIS device, arc-chutes are the elements of whole equipment drop-out current most critical, arc-chutes divide-shut brake action be by
Operating mechanism drives Crankarm box to rotate, and so that the action simultaneously of three-phase arc-chutes is completed.Iron pull bar on moving contact in arc-chutes and
The insulated tension pole of Crankarm box is the position contacting at first, is also position the weakest simultaneously, and insulation common in the art is drawn
Bar is all the kit form being formed by connecting by multiple parts, and such as Authorization Notice No. is CN204348645U, and authorized announcement date is
2015.05.20 a kind of insulated tension pole mucilage binding and its joint disclosed in Chinese utility model patent（A kind of i.e. insulated tension pole group
Part）, this assembly includes the jointing seat at insulated tension pole two ends for the threaded or mucilage binding and connector（I.e. the first connecting seat and
Second connecting seat）, the top of the first connecting seat is fixedly connected with connector assembly（I.e. the first connector）, the first connector is cup-shaped,
Its bottom is injected in the groove on the first connecting seat, is provided with screw hole, the bottom of the first connector is provided with screw perforation in groove, fixing
When rely on screw achieve a fixed connection.
In order to realize being in transmission connection of insulated tension pole assembly and moving contact, the excircle of the first connector offers pin
Hole, during connection, the first connector plugs in the endoporus of iron pull bar, and the bottom of corresponding iron pull bar also offers pin-and-hole, passes through
The cooperation of bearing pin, pin-and-hole and split pin can achieve the connection of the first connector and iron pull bar, next just can be by insulation
Rod assembly drives moving contact to realize divide-shut brake.
Although above-mentioned insulated tension pole assembly is capable of the transmission of power, due to the connecting portion of connector and iron pull bar
Position does not have any protection, and primary cut-out can produce high-speed and high-temperature gases at high pressure in interrupting process, and this portion gas can edge
And rapidly spray downwards inside iron pull bar, thus ablation connector and the connecting portion of iron pull bar, melting welding can occur when serious, lead
Cause iron pull bar and insulated tension pole to thread off, cause the unloaded operation of arc-chutes.
Content of the invention
It is an object of the invention to provide a kind of plug, to solve the connecting portion of connector and iron pull bar in prior art
Easily ablated problem；The present invention also aims to providing a kind of insulated tension pole assembly using this plug and arc-chutes；
The present invention also aims to providing a kind of insulated tension pole assembly means of defence.
In order to solve above-mentioned technical problem, in the present invention, the technical scheme of plug is：
A kind of plug, including the connecting portion for being connected with the connector of the insulated tension pole of insulated tension pole assembly, for being connected
Coordinate to stop the internal thermal current of iron pull bar in the endoporus of iron pull bar of head entrance insulated tension pole assembly and with the hole wall of iron pull bar
Stop part to connector position impact.
Public pin-and-hole for being jointly connected with iron pull bar and connector is offered on described connecting portion.
The contact surface contacting with each other for the endoporus hole wall with connector is provided with described connecting portion, described contact surface is
Arc surface or sphere are so that connector can rotate with respect to connecting portion around the axis of described public pin-and-hole.
In the present invention, the technical scheme of insulated tension pole assembly is：
A kind of insulated tension pole assembly, the insulated tension pole be connected including iron pull bar and with iron pull bar, insulated tension pole includes insulated tension pole
Body and the connector being connected to insulated tension pole body one end, connector is provided with the attachment structure being connected with iron pull bar, even
Plug is connected with joint, connecting portion that described plug includes being connected with connector, enters in the endoporus of iron pull bar with connector
And flow to the stop part of connector position impact with the hole wall cooperation of iron pull bar to stop the internal hot gas of iron pull bar.
The public pin-and-hole being jointly connected with iron pull bar and connector is offered on described connecting portion.
The contact surface being contacted with each other with the endoporus hole wall of connector is provided with described connecting portion, described contact surface is circular arc
Face or sphere are so that connector can rotate with respect to connecting portion around the axis of described public pin-and-hole.
In the present invention, the technical scheme of arc-chutes is：
A kind of arc-chutes, the insulated tension pole assembly be connected including moving contact and with moving contact, insulated tension pole assembly includes iron pull bar
And the insulated tension pole being connected with iron pull bar, insulated tension pole includes insulated tension pole body and is connected to the company of insulated tension pole body one end
Joint, connector is provided with the attachment structure being connected with iron pull bar, connector is connected with plug, and described plug includes and connects
Connecting portion that joint is connected, enter with connector in the endoporus of iron pull bar and coordinate to stop in iron pull bar with the hole wall of iron pull bar
Portion's hot gas flows to the stop part of connector position impact.
The public pin-and-hole being jointly connected with iron pull bar and connector is offered on described connecting portion.
The contact surface being contacted with each other with the endoporus hole wall of connector is provided with described connecting portion, described contact surface is circular arc
Face or sphere are so that connector can rotate with respect to connecting portion around the axis of described public pin-and-hole.
In the present invention, the technical scheme of insulated tension pole assembly means of defence is：
A kind of insulated tension pole assembly means of defence, by the iron pull bar of insulated tension pole assembly positioned at moving contact and insulated tension pole group
Passageway break between the connector of the insulated tension pole of part or thing of placing obstacles, to protect the connecting portion of iron pull bar and connector
Position.
The beneficial effects of the present invention is：It is connected on connector using plug, because plug has stop part, so exist
The thermal current of the high-speed and high-temperature high pressure producing during separating brake can cut in the portion of being blocked when impacting to connector position along inside iron pull bar
Only, thus avoiding the connecting portion that thermal current directly impacts connector and iron pull bar, effectively connecting portion is protected,
Avoid ablation and melting welding, thus avoiding iron pull bar and insulated tension pole to thread off it is ensured that the normal operating of arc-chutes.
Brief description
Fig. 1 is the structural representation of the insulated tension pole assembly in an embodiment of arc-chutes in the present invention；
Fig. 2 is the left view cut away view of Fig. 1；
Fig. 3 is the structural representation of plug in Fig. 1.
In figure：1. steam vent；2. iron pull bar；3. bearing pin；4. connector；5. connecting seat；51. flanges；6. insulated tension pole basis
Body；7. screw；8. split pin；9. back-up ring；10. plug；101. stop part；102. connecting portion；103. public pin-and-holes；104. transition
Portion；105. first arc surfaces；106. the face of cylinder；107. second arc surfaces.
Specific embodiment
For example shown in Fig. 1 ~ Fig. 3, this arc-chutes is the arc-chutes on breaker, including moving contact for one enforcement of arc-chutes
（In figure is not shown）And the insulated tension pole assembly being connected with moving contact, insulated tension pole assembly include iron pull bar 2 and with iron pull bar 2 phase
Insulated tension pole even, insulated tension pole includes insulated tension pole body 6, connecting seat 5, connector 4 and plug 10, wherein insulated tension pole
Body 6 is together by a threaded connection with connecting seat 5 by insulating materials moulding by casting, its one end, certainly also can the direct company of cast
It is connected together, the other end of insulated tension pole body 6 and transmission crank arm are in transmission connection.
It is provided with connecting seat 5 and outward extends flange 51, for stopping the hot gas that breaker suddenly blows downwards in separating brake
Stream, thus form one to insulated tension pole body 6 protecting well, prevents it ablated.The top of connecting seat 5 be provided with for
The fixing groove of fixed connector 4, offers screw hole in fixing groove, the cup-shaped structure of connector 4, and its glass of bottom is inserted into described solid
Determine in groove, and offer screw perforation at the cup bottom of connector 4, be fixedly connected by screw 7 between connecting seat 5 and connector 4.
The cup body of connector 4 is inserted in the endoporus of iron pull bar 2, connector 4 is provided with for being connected with iron pull bar 2
Attachment structure, in this embodiment, described attachment structure includes the first pin-and-hole being arranged on connector 4 and is installed on first
Bearing pin 3 in pin-and-hole, corresponding, iron pull bar 2 also offers pin-and-hole, bearing pin 3 passes through the pin-and-hole on iron pull bar 2 and connector 4
Afterwards, coordinated using back-up ring 9 and split pin 8, prevent bearing pin 3 from deviating from.
Projection for being contacted with the endoporus hole wall of iron pull bar 2 is provided with the periphery of connector 4, this projection makes even
It is the contact form that point face contacts between joint 4 and the endoporus of iron pull bar 2, therefore connector 4 can around the axis of bearing pin 3 relatively
Make micro rotation, the rotational angle α of this rotation i.e. the divide-shut brake amount of waving in iron pull bar 2, this amount of waving makes insulation draw
Bar assembly can the action change during divide-shut brake be adaptively adjusted the pendulum of itself with transmission mechanism with operating mechanism
Dynamic position, thus avoid itself bearing than larger stress it is ensured that normal using effect.
Plug 10 is connected with connector 4, plug 10 is made using resistant to elevated temperatures metal material, plug 10 includes and is connected
4 connecting portions 102 being connected, enter with connector 4 in the endoporus of iron pull bar 2 and coordinate to stop iron with the hole wall of iron pull bar 2
The internal hot gas of pull bar 2 flows to the stop part 101 of impact at connector 4.Stop part 101 is in the form of annular discs, its hole wall with iron pull bar 2
Between have micro gap, thus convenient for assembly.The public affairs being jointly connected with iron pull bar 2 and connector 4 are offered on connecting portion 102
With pin-and-hole 103, during connection, connecting portion 102 plugs in the cup-shaped endoporus of connector 4, public pin-and-hole 103 and connector 4 and iron
Pin-and-hole on pull bar 2 matches, and jointly passes through for bearing pin 3, thus realizing the connection of plug 10.
Assemble for convenience, there is between the lateral surface of connecting portion 102 and the cup-shaped endoporus of connector 4 gap, even
The lateral surface of socket part 102 includes the face of cylinder 106, and plug 10 also includes the transition being arranged between stop part 101 and connecting portion 102
Portion 104, transition part 104 is necking down structure, and the external diameter of transition part 104 is less than the external diameter on the face of cylinder 106, the outside of connecting portion 102
Face also includes the contact surface contacting with each other for the endoporus hole wall with connector 4, and this contact surface is be arranged on the face of cylinder 106 one
Between the first arc surface 105 between end and transition part 104, the other end being arranged on the face of cylinder 106 and the bottom of plug 10
Second arc surface 107.So setting be due to, as described above, insulated tension pole needs certain divide-shut brake amount of waving, therefore the
The transition part 104 of one arc surface 105, the second arc surface 107 and necking down structure ensure that connector 4 can be successfully around pin
The axis of axle 3 is swung, and otherwise on connector 4, the projection of setting also just loses significance of which.
The operation principle of insulated tension pole assembly is：Insulated tension pole body 6, connecting seat 5, connector 4, plug 10 are connected
And be connected with iron pull bar 2, insulated tension pole body 6 is identical with the type of attachment of transmission crank arm with prior art, and here is not
Give and repeating.During use, in the presence of operating mechanism, moving contact is driven to realize separating brake by the iron pull bar 2 in insulated tension pole assembly,
In the process, high-speed and high-temperature gases at high pressure can be produced, this portion gas rapidly sprays downwards along iron pull bar 2 is internal, works as heat
It is cut off when gas shock is on the stop part 101 of plug 10, iron pull bar 2 offers steam vent 1, thermal current is blocked portion
After 101 cut-offs, meeting counter motion is simultaneously discharged from steam vent 1, thus avoiding thermal current to be directly impinging connector 4 and iron pull bar
2 connecting portion, is effectively protected to connecting portion, it is to avoid ablation and melting welding, thus avoid iron pull bar and insulation to draw
Bar is threaded off it is ensured that the normal operating of arc-chutes.
Simultaneously as thermal current is blocked, connector 4 does not have temperature rise substantially with the connecting portion of iron pull bar 2, it is to avoid
When connecting portion temperature rise is too high, this portion temperature can be delivered on back-up ring 9 and split pin 8, leads to back-up ring 9 and split pin 8 to occur
Welding Phenomena.
In the other embodiment of arc-chutes：The contact surface that the hole wall with iron pull bar of plug connecting portion contacts can also be
Sphere；Projection can be not provided with connector, the contact surface being contacted with iron pull bar hole wall of the connecting portion of plug may not be used yet simultaneously
It is arranged to arc surface or sphere；Connector can not be cup-shaped structure that is to say, that the connecting portion of plug can not be and plugs
In the endoporus of connector, such as connector is solid, together with connector and plug wear still through a bearing pin,
But connector and plug are arranged side by side；Plug can not also share a bearing pin with connector, and such as plug is screw thread
It is connected to the top of connector；Arc surface or sphere can be not provided with the connecting portion of plug, the lateral surface of connecting portion is permissible
Simply the gap between stop part and iron pull bar inwall now can be arranged to meet the divide-shut brake amount of waving by the face of cylinder
Gap；Connecting seat can also be not provided between connector and insulated tension pole, but be joined directly together；Connector and iron pull bar can also
It is threaded, now the attachment structure on connector is exactly external screw thread.
The enforcement of insulated tension pole assembly is for example shown in Fig. 1 ~ Fig. 3, the concrete structure of insulated tension pole assembly and above-mentioned arc-chutes
Insulated tension pole assembly described in embodiment is identical, will not be described in detail herein.
The enforcement of plug is for example shown in Fig. 1 ~ Fig. 3, stifled described in the concrete structure of plug and above-mentioned arc-chutes embodiment
Identical, will not be described in detail herein.
A kind of embodiment of insulated tension pole assembly means of defence：It is by the iron pull bar of insulated tension pole assembly positioned at dynamic
Passageway break between the connector of the insulated tension pole of contact and insulated tension pole assembly or thing of placing obstacles, to protect iron pull bar
With the connecting portion of connector, described barrier can be plug, now the concrete knot of described insulated tension pole assembly and plug
Structure as shown in Fig. 1 ~ Fig. 3, its with above-mentioned arc-chutes embodiment described in structure and principle identical, will not be described in detail herein.When
So in other embodiments, it would however also be possible to employ the form of cut-off, such as iron pull bar adopt solid structure.
Claims (10)
1. a kind of plug it is characterised in that：Including the connection for being connected with the connector of the insulated tension pole of insulated tension pole assembly
Portion, drawn in the endoporus of the iron pull bar entering insulated tension pole assembly with connector and with the cooperation of the hole wall of iron pull bar with stopping iron
The internal hot gas of bar flows to the stop part of connector position impact.
2. plug according to claim 1 it is characterised in that：Offer on described connecting portion for iron pull bar and being connected
The public pin-and-hole that head is connected jointly.
3. plug according to claim 2 it is characterised in that：It is provided with for the endoporus with connector on described connecting portion
The contact surface that hole wall contacts with each other, described contact surface is for arc surface or sphere so that connector can be around the axle of described public pin-and-hole
Line rotates with respect to connecting portion.
4. a kind of insulated tension pole assembly, the insulated tension pole be connected including iron pull bar and with iron pull bar, insulated tension pole includes insulation and draws
Bar body and the connector being connected to insulated tension pole body one end, connector is provided with the attachment structure being connected with iron pull bar,
It is characterized in that：Plug is connected with connector, connecting portion that described plug includes being connected with connector, enters iron with connector
The stop part of connector position impact is flowed to stop the internal hot gas of iron pull bar in the endoporus of pull bar and with the hole wall cooperation of iron pull bar.
5. insulated tension pole assembly according to claim 4 it is characterised in that：Offer on described connecting portion with iron pull bar and
The public pin-and-hole that connector is connected jointly.
6. insulated tension pole assembly according to claim 5 it is characterised in that：It is provided with and connector on described connecting portion
The contact surface that endoporus hole wall contacts with each other, described contact surface is for arc surface or sphere so that connector can be around described public pin-and-hole
Axis with respect to connecting portion rotate.
7. a kind of arc-chutes, the insulated tension pole assembly be connected including moving contact and with moving contact, insulated tension pole assembly includes iron and draws
Bar and the insulated tension pole being connected with iron pull bar, insulated tension pole includes insulated tension pole body and is connected to insulated tension pole body one end
Connector, connector is provided with the attachment structure being connected with iron pull bar it is characterised in that：Plug, institute are connected with connector
Hole wall cooperation in the endoporus state the plug connecting portion including being connected with connector, entering iron pull bar with connector and with iron pull bar
Flow to the stop part of connector position impact with the internal hot gas of stop iron pull bar.
8. arc-chutes according to claim 7 it is characterised in that：Offer on described connecting portion and iron pull bar and connector
The public pin-and-hole being jointly connected.
9. arc-chutes according to claim 8 it is characterised in that：Endoporus hole with connector is provided with described connecting portion
The contact surface that wall contacts with each other, described contact surface is for arc surface or sphere so that connector can be around the axis of described public pin-and-hole
Rotate with respect to connecting portion.
10. a kind of insulated tension pole assembly means of defence it is characterised in that：To touch positioned at dynamic in the iron pull bar of insulated tension pole assembly
Head and the connector of insulated tension pole of insulated tension pole assembly between passageway break or thing of placing obstacles, with protect iron pull bar with
The connecting portion of connector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611003092.4A CN106449267B (en) | 2016-11-15 | 2016-11-15 | Plug, insulated pull rod component and its means of defence, arc-chutes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611003092.4A CN106449267B (en) | 2016-11-15 | 2016-11-15 | Plug, insulated pull rod component and its means of defence, arc-chutes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106449267A true CN106449267A (en) | 2017-02-22 |
| CN106449267B CN106449267B (en) | 2019-04-02 |
Family
ID=58207069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611003092.4A Expired - Fee Related CN106449267B (en) | 2016-11-15 | 2016-11-15 | Plug, insulated pull rod component and its means of defence, arc-chutes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106449267B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106960757A (en) * | 2017-04-05 | 2017-07-18 | 平高集团有限公司 | A kind of rod assembly and the breaker using the rod assembly |
| CN106992091A (en) * | 2017-05-31 | 2017-07-28 | 河南森源电气股份有限公司 | The attachment structure of pole and insulated tension pole |
| CN107768180A (en) * | 2017-11-28 | 2018-03-06 | 广东电网有限责任公司江门供电局 | A kind of inserts joint type insulated tension pole |
| CN108956267A (en) * | 2017-05-27 | 2018-12-07 | 平高集团有限公司 | A kind of insulated pull rod tension test test joint and test tool |
| CN113009190A (en) * | 2019-12-19 | 2021-06-22 | 河南平芝高压开关有限公司 | GIS is with experimental frock of single insulating pull rod and test equipment |
| CN114141574A (en) * | 2021-10-20 | 2022-03-04 | 平高集团有限公司 | Circuit breaker and main pull rod thereof |
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| CN102820168A (en) * | 2012-07-09 | 2012-12-12 | 平高集团有限公司 | Pull rod joint and transmission pull rod of arc extinguish chamber of high voltage circuit breaker with pull rod joint |
| JP2013137904A (en) * | 2011-12-28 | 2013-07-11 | Mitsubishi Electric Corp | Switch |
| CN204348645U (en) * | 2014-12-15 | 2015-05-20 | 北京北开电气股份有限公司 | A kind of insulated tension pole mucilage binding and joint thereof |
| CN105023800A (en) * | 2015-07-08 | 2015-11-04 | 平高集团有限公司 | Double-acting arc extinguish chamber, breaker and gas insulation metal closed switch device |
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2016
- 2016-11-15 CN CN201611003092.4A patent/CN106449267B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2013137904A (en) * | 2011-12-28 | 2013-07-11 | Mitsubishi Electric Corp | Switch |
| CN102820168A (en) * | 2012-07-09 | 2012-12-12 | 平高集团有限公司 | Pull rod joint and transmission pull rod of arc extinguish chamber of high voltage circuit breaker with pull rod joint |
| CN204348645U (en) * | 2014-12-15 | 2015-05-20 | 北京北开电气股份有限公司 | A kind of insulated tension pole mucilage binding and joint thereof |
| CN105023800A (en) * | 2015-07-08 | 2015-11-04 | 平高集团有限公司 | Double-acting arc extinguish chamber, breaker and gas insulation metal closed switch device |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106960757A (en) * | 2017-04-05 | 2017-07-18 | 平高集团有限公司 | A kind of rod assembly and the breaker using the rod assembly |
| CN106960757B (en) * | 2017-04-05 | 2019-07-12 | 平高集团有限公司 | A kind of rod assembly and the breaker using the rod assembly |
| CN108956267A (en) * | 2017-05-27 | 2018-12-07 | 平高集团有限公司 | A kind of insulated pull rod tension test test joint and test tool |
| CN108956267B (en) * | 2017-05-27 | 2021-10-22 | 平高集团有限公司 | Insulating pull rod tensile test is with experimental joint and experimental frock |
| CN106992091A (en) * | 2017-05-31 | 2017-07-28 | 河南森源电气股份有限公司 | The attachment structure of pole and insulated tension pole |
| CN106992091B (en) * | 2017-05-31 | 2019-09-20 | 河南森源电气股份有限公司 | The connection structure of pole and insulated pull rod |
| CN107768180A (en) * | 2017-11-28 | 2018-03-06 | 广东电网有限责任公司江门供电局 | A kind of inserts joint type insulated tension pole |
| CN113009190A (en) * | 2019-12-19 | 2021-06-22 | 河南平芝高压开关有限公司 | GIS is with experimental frock of single insulating pull rod and test equipment |
| CN113009190B (en) * | 2019-12-19 | 2024-04-05 | 河南平芝高压开关有限公司 | Single-branch insulation pull rod test tool and test equipment for GIS |
| CN114141574A (en) * | 2021-10-20 | 2022-03-04 | 平高集团有限公司 | Circuit breaker and main pull rod thereof |
| CN114141574B (en) * | 2021-10-20 | 2024-03-26 | 平高集团有限公司 | Circuit breaker and main pull rod thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106449267B (en) | 2019-04-02 |
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