CN211296167U

CN211296167U - Transformer neutral point gap grounding protection device convenient to install and debug

Info

Publication number: CN211296167U
Application number: CN201922290447.8U
Authority: CN
Inventors: 王红利; 李颂华; 王淑宁
Original assignee: Baoding Hengyi Electric Technology Co Ltd
Current assignee: Baoding Hengyi Electric Technology Co Ltd
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2020-08-18
Anticipated expiration: 2029-12-19

Abstract

The utility model relates to a transformer equipment technical field just discloses convenient transformer neutral point clearance ground protection device of installation and debugging, including prefabricated post, the top fixed mounting of prefabricated post has the fixed plate, the top fixed mounting of fixed plate has the link, the right-hand member top fixed mounting of link has current transformer, current transformer's top fixed mounting has the guide pillar, the top fixed mounting of guide pillar has first clearance ball, the top fixed mounting of link has the arrester that is located current transformer left, the top right side fixed mounting of arrester has the second clearance ball. This convenient transformer neutral point clearance ground protection device of installation and debugging, simple structure is reasonable, and production installation cost is lower, and the use height of adjustable manual operation case cooperates not co-altitude transformer to use, more makes things convenient for operating personnel to install and debug work.

Description

Transformer neutral point gap grounding protection device convenient to install and debug

Technical Field

The utility model relates to a transformer equipment technical field specifically is installation and debugging convenient transformer neutral point clearance ground protection device.

Background

110kV and 220kV are main voltage levels of a power supply network, a neutral point generally adopts a direct grounding mode due to high voltage, a neutral point is not grounded in order to limit single-phase short-circuit current due to requirements on relay protection setting configuration, communication interference prevention and the like, in the operating mode, neutral point overvoltage can be caused due to lightning stroke, single-phase grounding short-circuit fault and the like, and most transformers are in graded insulation, so that the overvoltage threatens the insulation of the neutral point greatly, and a protection device must be arranged on the transformers to prevent accidents.

Traditional transformer neutral point clearance ground protection device, when installing, because the cement post is highly fixed, and protection device need dock with the transformer, so the control box height of its bottom is difficult to control at the height that operating personnel can operate, leads to operating personnel installation and debugging inconvenient, so has proposed a convenient transformer neutral point clearance ground protection device of installation and debugging and has solved the problem that above-mentioned provided.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a convenient transformer neutral point clearance ground protection device of installation and debugging possesses advantages such as the installation and debugging of being convenient for, has solved traditional transformer neutral point clearance ground protection device, when installing, because the cement post is highly fixed, and protection device need dock with the transformer, so the control box of its bottom highly is difficult to control at the height that operating personnel can operate, leads to the inconvenient problem of operating personnel installation and debugging.

(II) technical scheme

For the purpose of realizing the aforesaid installation and debugging of being convenient for, the utility model provides a following technical scheme: the transformer neutral point gap grounding protection device convenient to install and debug comprises a prefabricated column, a fixed plate is fixedly installed at the top of the prefabricated column, a connecting frame is fixedly installed at the top of the fixed plate, a current transformer is fixedly installed at the top of the right end of the connecting frame, a guide pillar is fixedly installed at the top of the current transformer, a first gap ball is fixedly installed at the top end of the guide pillar, an arrester positioned on the left side of the current transformer is fixedly installed at the top of the connecting frame, a second gap ball is fixedly installed on the right side of the top end of the arrester, a high-voltage isolating switch which is positioned on the left side of the arrester and is fixedly connected with the top end of the arrester is fixedly installed at the top of the connecting frame, an installation plate is fixedly installed at the front side of the prefabricated column, a fixed steel strip which is in contact with the back of the prefabricated column is, the top transmission of manual operation case is connected with the adjusting lever, the outside cover of adjusting lever is equipped with the fly leaf, the left end top fixed mounting of fly leaf have with high-voltage isolator adjustment end swing joint's transfer line, the outside sticising spring of adjusting lever is located to the bottom fixed mounting of fly leaf cover, the outside cover of adjusting lever be equipped with sticising the cushion of spring bottom contact, the outside threaded connection of adjusting lever has quantity to be two and is located the lock nut of fly leaf top and cushion bottom respectively.

Preferably, the top of the connecting frame is fixedly provided with a fixed seat fixedly connected with the current transformer and the lightning arrester, and the bottom of the fixed plate is fixedly connected with the connecting frame through four fixing bolts.

Preferably, the first gap ball and the second gap ball are arranged oppositely, and the current transformer and the lightning arrester are both electrically connected with a measuring capacitor fixedly mounted at the top of the connecting frame.

Preferably, the fixed steel strip is arranged in a U shape, and the fixed steel strip is fixedly connected with the mounting plate through two fastening bolts.

Preferably, the inside fixed mounting of prefabricated post has the earth connection of being connected with the arrester electricity, the inside fixed mounting that the back of mounting panel just is located fixed steel band has the resistance-increasing piece with prefabricated post external contact.

Preferably, the outside of adjusting lever is provided with the screw thread, the top fixed mounting of adjusting lever has spacing piece.

(III) advantageous effects

Compared with the prior art, the utility model provides a convenient transformer neutral point clearance ground protection device of installation and debugging possesses following beneficial effect:

the transformer neutral point gap grounding protection device convenient to install and debug fixes the prefabricated column on the ground when being installed, the fixing plate is arranged on the top of the prefabricated column, the connecting frame is fixed with the fixing plate, the two locking nuts are twisted at the moment and move to the two ends of the adjusting rod, the manual operation box can be adjusted to the required height and can be fixed with the steel belt and the prefabricated column through the mounting plate, the two locking nuts can be twisted according to the height of the movable plate at the adjusting rod, so that the top locking nut is contacted with the top of the movable plate, the bottom locking nut is contacted with the cushion block and presses the compression spring to deform, and finally the guide pillar and the transformer are connected through a cable, the device has simple and reasonable structure and lower production and installation cost, the use height of adjustable manual operation case uses in cooperation not co-altitude transformer, more makes things convenient for operating personnel to install and debug the work.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a top view of the steel belt of the present invention.

In the figure: the device comprises a prefabricated column 1, a fixed plate 2, a connecting frame 3, a current transformer 4, a guide column 5, a first gap ball 6, a lightning arrester 7, a second gap ball 8, a high-voltage isolating switch 9, a mounting plate 10, a fixed steel belt 11, a manual operation box 12, an adjusting rod 13, a movable plate 14, a transmission rod 15, a pressing spring 16, a cushion block 17 and a locking nut 18.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the transformer neutral point gap grounding protection device convenient to install and debug comprises a prefabricated column 1, a fixed plate 2 is fixedly installed on the top of the prefabricated column 1, a connecting frame 3 is fixedly installed on the top of the fixed plate 2, a current transformer 4 is fixedly installed on the top of the right end of the connecting frame 3, a guide pillar 5 is fixedly installed on the top of the current transformer 4, a first gap ball 6 is fixedly installed on the top end of the guide pillar 5, a lightning arrester 7 positioned on the left side of the current transformer 4 is fixedly installed on the top of the connecting frame 3, a fixed seat fixedly connected with the current transformer 4 and the lightning arrester 7 is fixedly installed on the top of the connecting frame 3, the bottom of the fixed plate 2 is fixedly connected with the connecting frame 3 through four fixing bolts, a second gap ball 8 is fixedly installed on the right side of the top end of the lightning arrester 7, the first gap ball, the current transformer 4 and the lightning arrester 7 are both electrically connected with a measuring capacitor fixedly arranged on the top of the connecting frame 3, a high-voltage isolating switch 9 which is arranged on the left side of the lightning arrester 7 and is fixedly connected with the top end of the lightning arrester 7 is fixedly arranged on the top of the connecting frame 3, a mounting plate 10 is fixedly arranged on the front side of the prefabricated column 1, a fixed steel strip 11 is arranged in a U shape, a grounding wire electrically connected with the lightning arrester 7 is fixedly arranged inside the prefabricated column 1, a resistance increasing block which is in contact with the outside of the prefabricated column is fixedly arranged on the back side of the mounting plate 10 and positioned inside the fixed steel strip 11, the fixed steel strip 11 is fixedly connected with the mounting plate 10 through two fastening bolts, a fixed steel strip 11 which is in contact with the back side of the prefabricated column 1 is fixedly arranged on the back side of the mounting plate 10, a hand operating box 12 is fixedly arranged on the front side of the left, the top end of the adjusting rod 13 is fixedly provided with a limiting piece, the outer part of the adjusting rod 13 is sleeved with a movable plate 14, the top part of the left end of the movable plate 14 is fixedly provided with a transmission rod 15 movably connected with the adjusting end of the high-voltage isolating switch 9, the bottom part of the movable plate 14 is fixedly provided with a pressing spring 16 sleeved outside the adjusting rod 13, the outer part of the adjusting rod 13 is sleeved with a cushion block 17 contacted with the bottom part of the pressing spring 16, the outer part of the adjusting rod 13 is in threaded connection with two locking nuts 18 which are respectively positioned at the top part of the movable plate 14 and the bottom part of the cushion block 17, when the prefabricated column 1 is installed, the fixed plate 2 is installed at the top part of the prefabricated column 1, the connecting frame 3 is fixed with the fixed plate 2, at the moment, the two locking nuts 18 are twisted and moved to the two ends of the adjusting rod 13, the manual operating box 12 can be adjusted to the, can locate the height at adjusting lever 13 to fly leaf 14, twist two lock nut 18, make top lock nut 18 and fly leaf 14's top contact, bottom lock nut 18 and cushion 17 contact and will sticiss spring 16 pressure to move deformation, at last with guide pillar 5 with the transformer through the cable be connected can, this device simple structure is reasonable, production installation cost is lower, adjustable manual operation case 12's use height, cooperation not co-altitude transformer uses, more make things convenient for operating personnel to install and debug the work.

To sum up, the transformer neutral point gap grounding protection device with convenient installation and debugging has the advantages that when the device is installed, the prefabricated column 1 is fixed on the ground, the fixed plate 2 is installed at the top of the prefabricated column 1, the connecting frame 3 and the fixed plate 2 are fixed, at the moment, the two locking nuts 18 are twisted and moved to two ends of the adjusting rod 13, the hand-operated box 12 can be adjusted to a required height, the hand-operated box is fixed with the steel belt 11 and the prefabricated column 1 through the mounting plate 10, the two locking nuts 18 can be twisted according to the height of the movable plate 14 at the adjusting rod 13, the top locking nut 18 is in contact with the top of the movable plate 14, the bottom locking nut 18 is in contact with the cushion block 17 and presses and deforms the spring 16, and finally the guide column 5 is connected with the transformer through the cable, the device has simple and reasonable structure, low production and installation cost, and can adjust the use height of the hand-, the cooperation co-altitude transformer uses, more makes things convenient for operating personnel to install and debug work, has solved traditional transformer neutral point clearance ground protection device, when installing, because the cement post is highly fixed, and protection device need dock with the transformer, so the control box of its bottom highly is difficult to control at the height that operating personnel can operate, leads to the inconvenient problem of operating personnel installation and debugging.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Installation and debugging convenient transformer neutral point clearance ground protection device, including prefabricated post (1), its characterized in that: the prefabricated column is characterized in that a fixed plate (2) is fixedly mounted at the top of the prefabricated column (1), a connecting frame (3) is fixedly mounted at the top of the fixed plate (2), a current transformer (4) is fixedly mounted at the top of the right end of the connecting frame (3), a guide pillar (5) is fixedly mounted at the top of the current transformer (4), a first gap ball (6) is fixedly mounted at the top end of the guide pillar (5), a lightning arrester (7) positioned on the left side of the current transformer (4) is fixedly mounted at the top of the connecting frame (3), a second gap ball (8) is fixedly mounted on the right side of the top end of the lightning arrester (7), a high-voltage isolating switch (9) which is fixedly connected with the left side of the lightning arrester (7) and the top end of the lightning arrester (7) is fixedly mounted at the top of the connecting frame (3), and, the back of the mounting plate (10) is fixedly provided with a fixed steel belt (11) which is contacted with the back of the prefabricated column (1), a manual operation box (12) is fixedly arranged on the front surface of the left end of the mounting plate (10), the top of the manual operation box (12) is in transmission connection with an adjusting rod (13), a movable plate (14) is sleeved outside the adjusting rod (13), a transmission rod (15) movably connected with the adjusting end of the high-voltage isolating switch (9) is fixedly installed at the top of the left end of the movable plate (14), a pressing spring (16) sleeved outside the adjusting rod (13) is fixedly arranged at the bottom of the movable plate (14), a cushion block (17) contacted with the bottom of the compression spring (16) is sleeved outside the adjusting rod (13), the external thread of the adjusting rod (13) is connected with two locking nuts (18) which are respectively positioned at the top of the movable plate (14) and the bottom of the cushion block (17).

2. The transformer neutral point gap grounding protection device convenient to install and debug according to claim 1, wherein: the top fixed mounting of link (3) has the fixing base with current transformer (4) and arrester (7) fixed connection, the bottom of fixed plate (2) is four fixing bolt fixed connection through quantity with link (3).

3. The transformer neutral point gap grounding protection device convenient to install and debug according to claim 1, wherein: the first gap ball (6) and the second gap ball (8) are oppositely arranged, and the current transformer (4) and the lightning arrester (7) are both electrically connected with a measuring capacitor fixedly mounted at the top of the connecting frame (3).

4. The transformer neutral point gap grounding protection device convenient to install and debug according to claim 1, wherein: the fixed steel belt (11) is arranged in a U shape, and the fixed steel belt (11) is fixedly connected with the mounting plate (10) through two fastening bolts.

5. The transformer neutral point gap grounding protection device convenient to install and debug according to claim 1, wherein: the inside fixed mounting of prefabricated post (1) has the earth connection of being connected with arrester (7) electricity, the inside fixed mounting that just is located fixed steel band (11) of the back of mounting panel (10) has the resistance-increasing piece with prefabricated post external contact.

6. The transformer neutral point gap grounding protection device convenient to install and debug according to claim 1, wherein: the outside of adjusting lever (13) is provided with the screw thread, the top fixed mounting of adjusting lever (13) has spacing piece.