CN203659670U - Pole column and upper wall structure thereof - Google Patents

Pole column and upper wall structure thereof Download PDF

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Publication number
CN203659670U
CN203659670U CN201320406379.7U CN201320406379U CN203659670U CN 203659670 U CN203659670 U CN 203659670U CN 201320406379 U CN201320406379 U CN 201320406379U CN 203659670 U CN203659670 U CN 203659670U
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China
Prior art keywords
hole
conductor
insulating plug
insulating
pole
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Application number
CN201320406379.7U
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Chinese (zh)
Inventor
姚勤智
方明
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.)
Schneider Electric SE
Schneider Electric Industries SAS
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Schneider Electric SE
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Publication date
Application filed by Schneider Electric SE filed Critical Schneider Electric SE
Priority to CN201320406379.7U priority Critical patent/CN203659670U/en
Application granted granted Critical
Publication of CN203659670U publication Critical patent/CN203659670U/en
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Abstract

Provided is a pole column and an upper wall structure thereof. The pole column is disposed in a high-voltage system, and the pole column comprises a housing, a switch, a fixing element, and an insulating plug. The housing is provided with a cavity, and the upper wall of the cavity comprises an insulating layer and a conductor in the insulating layer. The upper wall is provided with a hole. The switch is disposed in the cavity. The fixing element passes through the hole and fixes the switch on the upper wall. The insulating plug is plugged on the hole to cover the fixing element. A triple area formed by the insulating plug, the conductor, and air between the insulating plug and the conductor is in the conductor in the hole. Specifically, a part of the conductor is the lower side wall of the hole, the other part of the conductor extends into the insulating layer. The conductor is separated from an inner cavity of the hole. The upper side wall of the hole is an insulating layer. When the insulating plug is plugged in the hole, the insulating plug is in the hole between the upper side wall and the lower side wall through the triple area. The pole column and the upper wall structure thereof can reduce Triple point electric field intensity, prevent partial discharge in the pole column in a compact space, so as to improve life of the pole column, and meanwhile short circuit caused by arcing under transient high voltage is prevented, the arcing being caused by the Triple point.

Description

Pole and top wall structure thereof
Technical field
The utility model relates to a kind of protective device of high-pressure system, particularly relates to a kind of pole and top wall structure thereof.
Background technology
Pole is a kind of device for high-pressure system protection, and in the time that high-pressure system runs into the dangerous situation such as thunder and lightning, short circuit, this pole can disconnect the circuit of high-pressure system automatically, to avoid the unexpected situation such as on fire and damage equipment to occur.Therefore, the safety requirements of pole itself and quality requirement will be very important problems.
General on the pole of 1 kilovolt of high-pressure system, when having while having a transient high voltages in an instantaneous lightning impulse or electrical network, if the air gap between this pole and ground connection is large not, will has short circuit and occur, thereby cause grid short circuit.And pole itself also easily produces partial discharge in the energising use procedure of electrical network, can shorten thus the useful life of its pole.The more important thing is; due to the design feature of pole itself; in it, will there is a special area; the trigonum (being all called below: Triple point) being formed by insulating plug, conductor and the air between the two thereof; the electric field strength in this region will produce and be far longer than the electric field strength of calculating, so the Triple point starting point of some arcings is often also the place that easily has partial discharge; the hidden danger that causes accident, so protection Triple point point is extremely important.
Utility model content
The purpose of this utility model is to provide a kind of pole and top wall structure thereof, to address the above problem.
The purpose of this utility model is achieved in that provides a kind of pole, is arranged in a high-pressure system, it is characterized in that: this pole comprises: housing, have a cavity, the roof of this cavity comprises the conductor in insulating barrier and this insulating barrier, has a through hole on this roof; Switch, is arranged in this cavity, and fixture passes this through hole and this switch is fixed on to this roof; Insulating plug, fills in this through hole, and to hide this fixture, the trigonum being wherein made up of this insulating plug, this conductor and the air of the two thereof is arranged in the conductor inside of this through hole.
In this through hole, a part for this conductor is the lower wall of this through hole, and another part of this conductor extends in this insulating barrier, with this through hole inner chamber isolation, and the upper side wall that makes this through hole is this insulating barrier, wherein in this through hole between this upper side wall and this lower wall of this trigonum.
This conductor has convex, for this insulating plug of buckle.
Between this insulating plug and this through hole, it is tight fit.
Side surface at this insulating plug scribbles silicone grease, for sealing the gap between this through hole.
Between this insulating plug and this through hole, it is wedge-like engagement.
This fixture is a bolt.
This insulating plug is rubber stopper, so that this insulating plug is arranged in this through hole is compressed.
The utility model also provides a kind of top wall structure of pole, this top wall structure is made up of the conductor in insulating barrier and this insulating barrier, on this roof, there is a through hole, fill in for an insulating plug, a part for this conductor is the lower wall of this through hole, another part of this conductor extends in this insulating barrier, inner chamber isolation with this through hole, and the upper side wall that makes this through hole is this insulating barrier, wherein in the time that insulating plug is filled in this through hole, in this through hole between this upper side wall and this lower wall of the trigonum being formed by this insulating plug, this conductor and the air of the two thereof.
This conductor has convex, for this insulating plug of buckle.
Between this insulating plug and this through hole, it is tight fit.
Side surface at this insulating plug scribbles silicone grease, for sealing the gap between this through hole.
Between this insulating plug and this through hole, it is wedge-like engagement.
This insulating plug is rubber stopper, so that this insulating plug is arranged in this through hole is compressed.
The utility model has the advantage of, owing to Triple point being arranged to the inside of conductor, reduced the electric field strength that Triple point is ordered.In compact space, avoid the partial discharge of pole inside, to improve the useful life of its pole, short circuit simultaneously that also avoid the arcing being caused by Triple point point under transient high voltages to cause.
Accompanying drawing explanation
Fig. 1 is the cutaway view of pole of the present utility model;
Fig. 2 is the top wall structure schematic diagram of pole of the present utility model;
Fig. 3 is the exploded view of Fig. 2.
Embodiment
Refer to Fig. 1-3, it is the cutaway view of pole of the present utility model, and this pole 1 comprises: housing 11, has a cavity 110, the roof of this cavity 110 comprises the conductor 1102 in insulating barrier 1101 and this insulating barrier 1101, has a through hole 111(and see Fig. 3 on this roof); Switch 12, is arranged in this cavity 110, and fixture 13 passes this through hole 111 and this switch 12 is fixed on to this roof; Insulating plug 14, fills in this through hole 111 places, and to hide this fixture 13, trigonum (Triple point) A(being wherein made up of this insulating plug 14, this conductor 1102 and the air of the two thereof is shown in Fig. 2) be arranged in conductor 1102 inside of this through hole 111.The definition of wherein said " conductor inside " is: in through hole 111, lower than the position of conductor 1102 highest points.Please Triple point A as shown in Figure 2 in detail.
Furtherly, in this through hole 111, a part for this conductor 1102 is the lower wall of this through hole 111, another part of this conductor 1102 extends in this insulating barrier 1101, with these through hole 111 inner chamber isolation, and the upper side wall that makes this through hole 111 is this insulating barrier 1101, wherein in this Triple point A this through hole 111 between this upper side wall and this lower wall.
Please refer to again Fig. 3, in the time of the above-mentioned pole 1 of assembling, on this pole 1 roof, first have through hole 111, the sidewall of this through hole 111 is made up of insulating barrier 1101 and conductor 1102, by fixture 13, as bolt, from the roof of pole 1, described switch 12 is pinned in cavity 110, now, this fixture 13 is arranged among this through hole 111 and is exposed to air, insulating plug 14 need to be filled among this through hole 111, cover on this fixture 13, so that this fixture 13 and air insulated (see figure 2), but in the time filling in this insulating plug 14, between this insulating plug 14 and conductor 1102, there is a space, form thus Triple point(as shown in Figure 2), for fear of this Triple point place because the existence of the air in its space produces the starting the arc, so conductor 1102 is upwards extended, extend in insulating barrier 1101, so that this Triple point is lower than the highest portion of this conductor 1102 of extend, therefore this Triple point is positioned at conductor 1102 inside.
Thus, in the time that Triple point A produces stronger electric field, its electric field can weaken because of upwardly extending conductor 1102, avoids preferably thus the Triple point A starting the arc, the useful life of improving safeguard measure and improving this pole
Please refer to Fig. 2,3, this conductor 1102 has convex 1103 again, for the buckling parts 141 of this insulating plug 14 of buckle, so that insulating plug 14 can be fixed in the time filling in.Wherein preferably, between this insulating plug 14 and this through hole 111, be tight fit, particularly, this insulating plug is rubber stopper, and this rubber stopper is the squeezed compression of energy in the time being assemblied in this through hole 111, has thus good insulated enclosure, can avoid breakdown, can reduce the inner office of insulating material simultaneously high-volume.
Have again, preferably, scribble silicone grease at the side surface of this insulating plug 14, for sealing the gap between this through hole 111.In addition, between this insulating plug 14 and this through hole 111, be wedge-like engagement, be also conducive to sealing.

Claims (14)

1. a pole, is arranged in a high-pressure system, it is characterized in that: this pole comprises:
Housing, has a cavity, and the roof of this cavity comprises the conductor in insulating barrier and this insulating barrier, has a through hole on this roof;
Switch, is arranged in this cavity,
Fixture, passes this through hole and this switch is fixed on to this roof;
Insulating plug, fills in this through hole, to hide this fixture,
The trigonum being wherein made up of this insulating plug, this conductor and the air of the two thereof is arranged in the conductor inside of this through hole.
2. pole as claimed in claim 1, it is characterized in that, in this through hole, a part for this conductor is the lower wall of this through hole, another part of this conductor extends in this insulating barrier, with the isolation of this through hole inner chamber, and to make the upper side wall of this through hole be this insulating barrier, wherein in this through hole between this upper side wall and this lower wall of this trigonum.
3. pole as claimed in claim 1, is characterized in that, this conductor has convex, for this insulating plug of buckle.
4. pole as claimed in claim 1, is characterized in that, between this insulating plug and this through hole, is tight fit.
5. pole as claimed in claim 1, is characterized in that, scribbles silicone grease at the side surface of this insulating plug, for sealing the gap between this through hole.
6. pole as claimed in claim 4, is characterized in that, between this insulating plug and this through hole, is wedge-like engagement.
7. pole as claimed in claim 1, is characterized in that, this fixture is a bolt.
8. pole as claimed in claim 1, is characterized in that, this insulating plug is rubber stopper, so that this insulating plug is arranged in this through hole is compressed.
9. the top wall structure of a pole, it is characterized in that, this top wall structure is made up of the conductor in insulating barrier and this insulating barrier, on this roof, there is a through hole, fill in for an insulating plug, a part for this conductor is the lower wall of this through hole, another part of this conductor extends in this insulating barrier, inner chamber isolation with this through hole, and the upper side wall that makes this through hole is this insulating barrier, wherein in the time that insulating plug is filled in this through hole, in this through hole between this upper side wall and this lower wall of the trigonum being formed by this insulating plug, this conductor and the air of the two thereof.
10. top wall structure as claimed in claim 9, is characterized in that, this conductor has convex, for this insulating plug of buckle.
11. top wall structures as claimed in claim 9, is characterized in that, between this insulating plug and this through hole, are tight fit.
12. top wall structures as claimed in claim 9, is characterized in that, scribble silicone grease at the side surface of this insulating plug, for sealing the gap between this through hole.
13. top wall structures as claimed in claim 9, is characterized in that, between this insulating plug and this through hole, are wedge-like engagement.
14. top wall structures as claimed in claim 9, is characterized in that, this insulating plug is rubber stopper, so that this insulating plug is arranged in this through hole is compressed.
CN201320406379.7U 2013-07-09 2013-07-09 Pole column and upper wall structure thereof Active CN203659670U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320406379.7U CN203659670U (en) 2013-07-09 2013-07-09 Pole column and upper wall structure thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320406379.7U CN203659670U (en) 2013-07-09 2013-07-09 Pole column and upper wall structure thereof

Publications (1)

Publication Number Publication Date
CN203659670U true CN203659670U (en) 2014-06-18

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320406379.7U Active CN203659670U (en) 2013-07-09 2013-07-09 Pole column and upper wall structure thereof

Country Status (1)

Country Link
CN (1) CN203659670U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107293461A (en) * 2016-03-31 2017-10-24 比亚迪股份有限公司 A kind of circuit safety box and circuit seal structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107293461A (en) * 2016-03-31 2017-10-24 比亚迪股份有限公司 A kind of circuit safety box and circuit seal structure
CN107293461B (en) * 2016-03-31 2019-08-13 比亚迪股份有限公司 A kind of circuit safety box and circuit seal structure

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