CN210575709U

CN210575709U - 38kV outdoor solid-sealed polar pole

Info

Publication number: CN210575709U
Application number: CN201921710389.3U
Authority: CN
Inventors: 沈寅; 马益站; 周志高; 应速飞; 苗建飞; 沈桂清
Original assignee: Ningbo Xinxin Xinyin Electrical Appliance Co ltd
Current assignee: Ningbo Xinxin Xinyin Electrical Appliance Co ltd
Priority date: 2019-10-14
Filing date: 2019-10-14
Publication date: 2020-05-19
Anticipated expiration: 2029-10-14

Abstract

The utility model discloses a 38kV outdoor solid-sealed polar pole, which comprises a column body, wherein the column body is provided with an incoming line end and a leading-out end, an arc extinguish chamber connected with the incoming line end and an insulating pull rod inserted at the lower end of the column body are arranged in the column body, a conducting rod arranged at the upper end of the insulating pull rod is connected with the inner end of the leading-out end through a soft copper bar, and a shielding net positioned at the periphery of the soft copper bar is arranged in the column body; the column is in the shielding net outside and be close to one side of inlet wire end is provided with first voltage transformer, the column is in the shielding net outside and be close to one side of outlet wire end is provided with second voltage transformer. The utility model has the advantages of it is following and effect: on a switch pole with high voltage of 38kV, the voltage-current can meet the local discharge requirement of IEC, and simultaneously, the IEC standard of shielded discharge is met through a shielding net arranged on the switch pole.

Description

38kV outdoor solid-sealed polar pole

Technical Field

The utility model relates to a high-voltage apparatus's technical field, in particular to 38kV is outdoor seals utmost point post admittedly.

Background

The vacuum arc-extinguishing chamber solid-sealed polar pole comprises a polar pole body, wherein the polar pole body is provided with an insulating layer with an outer surface, a vacuum arc-extinguishing chamber is arranged in the insulating layer, and the vacuum arc-extinguishing chamber is provided with an inlet wire end and an outlet wire end; in the prior art, only one voltage sensor is arranged in the pole body, one end of the voltage sensor is electrically connected with the wire inlet end, the other end of the voltage sensor is led out through a wire, the voltage sensor can only measure the voltage at the wire inlet end, people need to master the voltage at the wire outlet end during use, and the vacuum arc extinguish chamber solid-sealed pole in the prior art has the defect of inconvenient use.

The publication No. CN20714971U discloses a vacuum arc-extinguishing chamber solid-sealed polar pole, which comprises a polar pole body, wherein a first voltage sensor is arranged in the polar pole body, one end of the first voltage sensor is electrically connected with a wire inlet end, and the other end of the first voltage sensor is led out by a first lead-out wire; and a second voltage sensor is arranged in the pole body, one end of the second voltage sensor is electrically connected with the wire outlet end, and the other end of the second voltage sensor is led out by a second lead-out wire. The first voltage sensor and the second voltage sensor are used for detecting the wire inlet end and the wire outlet end, and further the fault problem of the solid-sealed pole is judged. However, since the vacuum interrupter is internally short-circuited, a point discharge is generated, which easily causes breakdown damage to the voltage sensor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a 38kV is outdoor with solid utmost point post that seals has protection voltage sensor's effect.

The above technical purpose of the present invention can be achieved by the following technical solutions: a38 kV outdoor solid-sealed polar pole comprises a column body, wherein the column body is provided with an incoming line end and an outgoing line end, an arc extinguish chamber connected with the incoming line end and an insulating pull rod inserted at the lower end of the column body are arranged in the column body, a conductive rod arranged at the upper end of the insulating pull rod is connected with the inner end of the outgoing line end through a soft copper bar, and a shielding net located on the periphery of the soft copper bar is arranged in the column body; the column is in the shielding net outside and be close to one side of inlet wire end is provided with first voltage transformer, the column is in the shielding net outside and be close to one side of outlet wire end is provided with second voltage transformer.

By adopting the technical scheme, after the shielding net is additionally arranged on the cylinder on the outer peripheral side of the soft copper bar, the first voltage transformer and the second voltage transformer on the outer side can be separated from the conducting rods in the shielding net. Because the conducting rod can take place point discharge when with the explosion chamber contact, voltage this moment can directly destroy first voltage transformer and second voltage transformer, therefore can effectively keep apart through the setting of shielding net, avoids first voltage transformer and second voltage transformer to be destroyed, improves the security and the life of whole solid utmost point post of sealing. On the other hand, the first voltage transformer is close to the wire inlet end, the second voltage transformer is close to the wire outlet end, faults at the two ends can be detected respectively, and therefore operators can be helped to handle equipment faults without overhauling the two sides.

The utility model discloses a further set up to: the upper end and the lower end of the shielding net are arranged in a circular arc bending mode after being flanged outwards.

By adopting the technical scheme, after the upper end and the lower end of the shielding net are conveniently arranged in an arc shape, the problem of point discharge at the two ends of the shielding net can be avoided. The secondary avoids the damage to the first voltage transformer and the second voltage transformer, and meanwhile, the discharge to the whole solid-sealed pole can be avoided.

The utility model discloses a further set up to: and the column body is arranged outside the shielding net and positioned at one end of the wire outlet end, and a current transformer is further arranged at one end of the column body.

Through adopting above-mentioned technical scheme, the current transformer that the cylinder set up at the leading-out terminal can detect the output condition of leading-out terminal, and then realizes the holistic in service behavior of monitoring solid utmost point post to provide data support for the later stage.

The utility model discloses a further set up to: the flexible copper bar is distributed in a U shape, the lower end of the flexible copper bar is connected with the wire outlet end through a bolt, the middle end of the flexible copper bar is provided with a through hole for the conductive rod to penetrate through, and the upper end of the conductive rod is connected with the flexible copper bar.

Through adopting above-mentioned technical scheme, soft copper bar one end passes through the bolt fastening with the leading-out terminal, and the other end is fixed with the conducting rod. The soft copper bars are distributed in a U shape, so that enough displacement distance can be provided for the up-and-down sliding of the conducting rods. On the other hand, a through hole is formed in the soft copper bar, and the conducting rod can be fixed with the soft copper bar at the upper end after penetrating through the through hole. The U-shaped opening of the soft copper bar is reduced when the conducting rod is pulled down, and the soft copper bar structure is reset when the conducting rod moves upwards.

The utility model discloses a further set up to: the lower end of the conducting rod is positioned in the insulating pull rod, the upper end of the conducting rod is provided with a threaded column connected with the soft copper bar, and the lower end of the arc extinguish chamber is provided with a jack for the conducting rod to be plugged.

Through adopting above-mentioned technical scheme, the conducting rod lower extreme is pegged graft and is fixed a position in insulating pull rod, and after the through-hole was worn to establish out to the upper end, the screw thread post and the soft copper bar fixed connection that set up, the upper end is connected through the jack with the explosion chamber, realizes that inlet wire end and leading-out terminal pass through the electricity of soft copper bar and conducting rod and is connected. The connection is convenient and fast, and the stability is high.

The utility model discloses a further set up to: the insulation pull rod is characterized in that the upper end of the insulation pull rod is provided with a mounting hole for the conductive rod to be inserted, the lower end of the conductive rod is provided with a positioning ring, and the upper end of the mounting hole is provided with a connecting ring which is in threaded connection with the mounting hole and sleeved on the conductive rod.

By adopting the technical scheme, the mounting hole is formed in the upper end of the insulating pull rod, and after the conducting rod is inserted into the mounting hole, the conducting rod is in threaded connection with the mounting hole through the connecting ring sleeved on the conducting rod. The positioning ring is positioned by the connecting ring, so that the fixed connection of the conducting rod in the mounting hole is realized. When the maintenance is dismantled to needs, only need to dismantle go-between and mounting hole and separate, the conducting rod can be followed the mounting hole and pulled out.

The utility model discloses a further set up to: the periphery wall of the insulating pull rod is convexly provided with a plurality of layers of flanges.

Through adopting above-mentioned technical scheme, the flange that insulating pull rod periphery wall set up can increase creepage distance, and then improves insulating pull rod's dielectric strength.

The utility model discloses a further set up to: the wire outlet end is connected with a heightening sleeve, and the tail end of the heightening sleeve is provided with a plug-in hole sleeved on a column body positioned at the wire outlet end.

By adopting the technical scheme, whether the heightening sleeve is additionally arranged or not can be set according to the actual length requirement of the outlet end in the solid-sealed polar pole. If need not only directly take off can, when needs prolong, only need increase sheathed tube spliced eye cover establish the terminal can of leading-out terminal, easy dismounting is swift, can ensure the leakproofness of both junctions through the setting of spliced eye.

To sum up, the utility model discloses following beneficial effect has: through setting up first voltage transformer and second voltage transformer in the shielding net outside, can avoid being punctured the damage to being punctured in the cylinder, ensure the security and the service life of the operation of solid utmost point post of sealing.

Drawings

FIG. 1 is a cross-sectional view of an embedded pole;

fig. 2 is an enlarged schematic view of a portion a shown in fig. 1.

In the figure: 1. a cylinder; 2. a wire inlet end; 3. a wire outlet end; 4. an arc extinguishing chamber; 5. an insulating pull rod; 6. a conductive rod; 7. soft copper bars; 8. a shielding mesh; 9. a first voltage transformer; 10. a second voltage transformer; 11. a current transformer; 12. a bolt; 13. a through hole; 14. a threaded post; 15. a jack; 16. mounting holes; 17. a positioning ring; 18. a connecting ring; 19. a flange; 20. heightening the sleeve; 21. and (7) inserting holes.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

A38 kV outdoor solid-sealed polar pole, referring to fig. 1, comprises a column body 1, wherein the upper end of the column body 1 is provided with a wire inlet end 2, and the middle part of the column body horizontally extends outwards to form a wire outlet end 3. The cylinder hole setting is inside to be of cylinder 1, and the upper end is fixed with an explosion chamber 4, and explosion chamber 4 carries out fixed connection through epoxy, and the lower extreme is provided with a lower extreme insulation pull rod 5, and insulation pull rod 5 wears to establish and is connected enough with spring operating machine after 1 lower extreme of cylinder, realizes that insulation pull rod 5 reciprocates in 1 inside of cylinder.

Referring to fig. 2, one end of the inlet end 2 inside the column 1 is connected with a soft copper bar 7, and the inlet end 2 and the soft copper bar 7 are fixed by a bolt 12. The soft copper bar 7 is integrally arranged in a U shape in a side-placed manner, and the upper end of the soft copper bar 7 is fixed with the conductive rod 6 fixed on the insulating pull rod 5. Wherein the lower end of the soft copper bar 7 is also provided with a through hole 13 for the conducting rod 6 to penetrate through, so that the upper end of the conducting rod 6 can be connected with the upper end of the soft copper bar 7. The upper end of the conducting rod 6 can be directly inserted into the jack 15 arranged on the arc extinguish chamber 4, meanwhile, the conducting rod 6 is further provided with a threaded column 14 at the end, the threaded column 14 is fixed with the upper end of the soft copper bar 7, the conducting rod 6 is electrically connected with the wire outlet end 3, then when the conducting rod 6 is inserted into the arc extinguish chamber 4, the wire inlet end 2 and the wire outlet end 3 are connected, and after the conducting rod 6 is pulled out from the jack 15, the wire inlet end 2 and the wire outlet end 3 are disconnected.

Referring to fig. 1 and 2, the outer peripheral wall of the insulating pull rod 5 is convexly provided with a plurality of layers of flanges 19 for increasing the creepage distance of the insulating pull rod 5. On the other hand, the upper end of the insulating pull rod 5 is provided with a mounting hole 16, the lower end of the conducting rod 6 is inserted into the mounting hole 16, the lower end of the conducting rod 6 is provided with a circle of positioning ring 17, the upper end of the positioning ring 17 is also sleeved with a connecting ring 18, the outer wall of the connecting ring 18 is provided with threads, and the threads can be connected with the inner wall of the mounting hole 16 in a threaded mode. When the conducting rod 6 is installed, the lower end of the conducting rod 6 is inserted into the mounting hole 16, the connecting ring 18 is fixed with the mounting hole 16, the lower end of the conducting rod 6 is positioned on the bottom wall of the mounting hole 16, and the positioning ring 17 is pressed tightly through the connecting ring 18, so that the conducting rod 6 is fixedly connected with the insulating pull rod 5.

In fig. 1, shielding net 8 is buried underground in the middle of cylinder 1 at the week side of soft copper bar 7 and the week side that insulating pull rod 5 is provided with mounting hole 16, and shielding net 8 is turned over the setting at both ends about, and the turn-ups is the crooked setting of circular arc, and then can avoid shielding net 8 itself point discharge. The column body 1 is provided with a first voltage transformer 9 and a second voltage transformer 10 outside the shielding net 8, the first voltage transformer 9 is close to the one end of the inlet wire end 2 for detecting the voltage condition of the inlet wire end 2, and the second voltage transformer 10 is arranged at the lower end close to the outlet wire end 3 for detecting the voltage condition of the outlet wire end 3, so that independent detection is realized by the two, and further, the fault judgment of an operator is facilitated. The arrangement of the shielding net 8 can protect the first voltage transformer 9 and the second voltage transformer 10, and the conducting rod 6 is prevented from discharging to damage the first voltage transformer 9 and the second voltage transformer 10 when being plugged or pulled out, so that the service lives of the first voltage transformer 9 and the second voltage transformer 10 are ensured. On the other hand, the column 1 is further provided with a current transformer 11 at a middle position close to the outlet end 3 for detecting the current condition of the outlet end 3.

The column body 1 is also detachably connected with a heightening sleeve 20 (refer to fig. 1) outside the leading-out terminal 3, the heightening sleeve 20 is provided with a plug hole 21, when the length or creepage distance of the leading-out terminal 3 needs to be prolonged, the heightening sleeve 20 can be directly sleeved outside the leading-out terminal 3, and the operation is convenient and fast.

The specific embodiments are only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiments without inventive contribution as required after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. The utility model provides a 38kV is outdoor with solid utmost point post that seals, includes cylinder (1), cylinder (1) is provided with inlet wire end (2) and leading-out terminal (3), be provided with in cylinder (1) with explosion chamber (4) that inlet wire end (2) are connected, peg graft and be in insulating pull rod (5) of cylinder (1) lower extreme, its characterized in that: a conductive rod (6) arranged at the upper end of the insulating pull rod (5) is connected with the inner end of the wire outlet end (3) through a soft copper bar (7), and a shielding net (8) located on the peripheral side of the soft copper bar (7) is arranged inside the column body (1); the column body (1) is in the shielding net (8) outside and be close to one side of inlet wire end (2) is provided with first voltage transformer (9), column body (1) is in the shielding net (8) outside and be close to one side of outlet wire end (3) is provided with second voltage transformer (10).

2. The 38kV outdoor embedded pole according to claim 1, characterized in that: the upper end and the lower end of the shielding net (8) are outwards flanged and then are arranged in a circular arc bending mode.

3. The 38kV outdoor embedded pole according to claim 2, characterized in that: and the column body (1) is arranged on the outer side of the shielding net (8) and positioned at one end of the outlet end (3), and a current transformer (11) is further arranged at one end of the column body.

4. The 38kV outdoor embedded pole according to claim 3, characterized in that: soft copper bar (7) are "U" type and distribute, soft copper bar (7) lower extreme pass through bolt (12) with leading-out terminal (3) are connected, the confession has been seted up to soft copper bar (7) middle-end through-hole (13) that conducting rod (6) were worn to establish, conducting rod (6) upper end with soft copper bar (7) are connected.

5. The 38kV outdoor embedded pole according to claim 4, characterized in that: the lower end of the conducting rod (6) is positioned in the insulating pull rod (5), the upper end of the conducting rod is provided with a threaded column (14) connected with the soft copper bar (7), and the lower end of the arc extinguish chamber (4) is provided with a jack (15) for the conducting rod (6) to be plugged.

6. The 38kV outdoor embedded pole according to claim 5, characterized in that: the utility model discloses a conductor bar, including insulating pull rod (5), conducting rod (6), locating ring (17), insulating pull rod (5) upper end is seted up the confession mounting hole (16) that conducting rod (6) were pegged graft, conducting rod (6) lower extreme is provided with holding ring (17), insulating pull rod (5) be provided with mounting hole (16) threaded connection and cover establish go-between (18) on conducting rod (6).

7. The 38kV outdoor embedded pole according to claim 6, characterized in that: the peripheral wall of the insulating pull rod (5) is convexly provided with a plurality of layers of flanges (19).

8. The 38kV outdoor embedded pole according to claim 1, characterized in that: the wire outlet end (3) is connected with a heightening sleeve (20), and the tail end of the heightening sleeve (20) is provided with a plug-in hole (21) which is sleeved on the column body (1) of the wire outlet end (3).