CN217655159U

CN217655159U - Special quick short circuit device of voltage transformer preventive test

Info

Publication number: CN217655159U
Application number: CN202220600492.8U
Authority: CN
Inventors: 肖高雷; 蒋昌贵; 魏盼; 陈宇; 李文金; 宋洪亮; 钱朝东; 邓加阳; 陈长顺; 余仕良; 吴顺波; 穆金贵; 陈鹏宇
Original assignee: Huaneng Lancang River Hydropower Co Ltd
Current assignee: Huaneng Lancang River Hydropower Co Ltd
Priority date: 2022-03-18
Filing date: 2022-03-18
Publication date: 2022-10-25
Anticipated expiration: 2032-03-18

Abstract

The utility model discloses a special quick short circuit device for voltage transformer preventive tests, which comprises a butt joint component, a driving piece, an elastic piece and a confluence piece, wherein the driving piece is arranged in the shell, the elastic piece is arranged at the bottom of the driving piece and is positioned in the shell, and the confluence piece is fixed on the inner wall of the shell and is positioned at the bottom of the elastic piece; and a connecting assembly including a grounding member, a short-circuit member and a magnetic suction member, wherein the grounding member is arranged on one side of the casing, one end of the short-circuit member is arranged on the other side of the casing, and the magnetic suction member is arranged on the other end of the short-circuit member. The utility model discloses a mutually supporting between butt joint subassembly and the coupling assembling makes the short circuit device can inhale fast on voltage transformer secondary binding post screw, and the reliability is high, convenient to use.

Description

Special quick short circuit device of voltage transformer preventive test

Technical Field

The utility model relates to a special quick short circuit technical field, especially a special quick short circuit device of voltage transformer preventive test.

Background

The voltage transformer is similar to a transformer and is an instrument for converting voltage, but the transformer is used for converting voltage and is mainly used for supplying power to a measuring instrument and a relay protection device so as to measure voltage, power and electric energy of a line, or used for protecting valuable equipment, a motor and a transformer in the line when the line fails, so that the voltage transformer has small capacity, generally only a few volt-ampere and dozens of volt-ampere, and maximally not more than one thousand volt-ampere.

SUMMERY OF THE UTILITY MODEL

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract of the specification and the title of the application to avoid obscuring the purpose of this section, the abstract of the specification and the title of the application, and such simplifications or omissions are not intended to limit the scope of the invention.

In view of the above-mentioned and/or the problem that exists among the special quick short circuit device of current voltage transformer preventive test, provided the utility model discloses.

Therefore, the utility model aims to solve the problem that in prior art, generally adopt many test lines and test to press from both sides and realize the short circuit ground connection, there is the test clamp to drop easily in the test process, contact failure, can not reliably press from both sides the problem of carrying out the experiment on secondary binding post, and the experimental wiring of being not convenient for change.

In order to solve the technical problem, the utility model provides a following technical scheme: a special quick short circuit device for preventive tests of voltage transformers comprises a butt joint assembly, a first short circuit assembly and a second short circuit assembly, wherein the butt joint assembly comprises a shell, a driving piece, an elastic piece and a confluence piece, the driving piece is arranged in the shell, the elastic piece is arranged at the bottom of the driving piece and is positioned in the shell, and the confluence piece is fixed on the inner wall of the shell and is positioned at the bottom of the elastic piece; and a connecting assembly including a grounding member, a short-circuit member and a magnetic suction member, wherein the grounding member is arranged on one side of the casing, one end of the short-circuit member is arranged on the other side of the casing, and the magnetic suction member is arranged on the other end of the short-circuit member.

As a special quick short circuit device of voltage transformer preventive test's an preferred scheme, wherein: the driving piece comprises a rotating rod and a protruding block, the rotating rod is connected with the shell in a rotating mode through threads, one end of the rotating rod is located on the outer side of the shell, and the protruding block is fixed on the rotating rod and located in the shell.

As a special quick short circuit device of voltage transformer preventive test's an optimal selection scheme, wherein: the driving piece further comprises a handle and a handle rod, the handle is fixed on the rotating rod and located on the outer side of the shell, and the handle rod is fixed on the handle.

As a special quick short circuit device of voltage transformer preventive test's an optimal selection scheme, wherein: the elastic piece comprises an extrusion plate and a spring sleeve, the extrusion plate is located at the bottom of the rotating rod, a groove is formed in the extrusion plate, the spring sleeve is fixed at the bottom of the extrusion plate, a through hole is formed in the spring sleeve, and a connecting hole is formed in the shell.

As a special quick short circuit device of voltage transformer preventive test's an preferred scheme, wherein: the bus piece comprises a bus bar, and the bus bar is fixed on the inner wall of the shell and positioned at the bottom of the spring sleeve.

As a special quick short circuit device of voltage transformer preventive test's an optimal selection scheme, wherein: the grounding piece comprises a main grounding wire, and the main grounding wire is arranged on the outer side of the shell.

As a special quick short circuit device of voltage transformer preventive test's an preferred scheme, wherein: the short circuit piece includes a wire, no. two wires and No. three wires, the one end of a wire, no. two wires and No. three wires set up in the casing outside.

As a special quick short circuit device of voltage transformer preventive test's an optimal selection scheme, wherein: the magnetic suction piece comprises a magnetic suction head, and the magnetic suction head is fixed on the first wire, the second wire and the third wire respectively.

As a special quick short circuit device of voltage transformer preventive test's an optimal selection scheme, wherein: the shell, the extrusion plate and the spring sleeve are made of rubber.

As a special quick short circuit device of voltage transformer preventive test's an preferred scheme, wherein: a second through hole is formed in the magnetic suction head.

The utility model discloses beneficial effect does: the utility model discloses a mutually supporting between butt joint subassembly and the coupling assembling makes the short circuit device can inhale fast on voltage transformer secondary binding post screw, and the reliability is high, convenient to use.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor. Wherein:

fig. 1 is an overall structure diagram of a special quick short-circuit device for a voltage transformer preventive test.

Fig. 2 is a structure diagram of the interior of a shell of the special quick short-circuit device for the preventive test of the voltage transformer.

Fig. 3 is a cut-away view of the special quick short-circuit device for the voltage transformer preventive test.

Fig. 4 is a structure diagram of an elastic member and a bus bar of the special quick short-circuit device for the preventive test of the voltage transformer.

Fig. 5 is a structure diagram of a magnetic suction head of the special quick short-circuit device for the voltage transformer preventive test.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail with reference to the accompanying drawings.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways different from the specific details set forth herein, and one skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Furthermore, the references herein to "one embodiment" or "an embodiment" refer to a particular feature, structure, or characteristic that may be included in at least one implementation of the present invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Example 1

Referring to fig. 1-3, for the utility model discloses the first embodiment, this embodiment provides a special quick short circuit device of voltage transformer preventative test, and the special quick short circuit device of voltage transformer preventative test includes butt joint subassembly 100 and coupling assembling 200, makes the short circuit device can inhale fast on voltage transformer secondary binding post screw through mutually supporting between connecing subassembly 100 and the coupling assembling 200, and the reliability is high, convenient to use.

Specifically, the docking assembly 100 includes a housing 101, a driving member 102, an elastic member 103 and a bus member 104, wherein the driving member 102 is disposed in the housing 101, the elastic member 103 is disposed at the bottom of the driving member 102 and located in the housing 101, and the bus member 104 is fixed to the inner wall of the housing 101 and located at the bottom of the elastic member 103.

The housing 101 serves as a basic framework of the docking assembly 100, and the driving member 102 is rotated to deform the elastic member 103 to move the elastic member 103 toward the bus bar 104, so that the copper wires in the wires and the bus bar 104 are in contact with each other, and the elastic member 103 also has a certain fixing effect on the wires.

The connecting assembly 200 comprises a grounding member 201, a shorting member 202 and a magnetic attraction member 203, wherein the grounding member 201 is arranged on one side of the casing 101, one end of the shorting member 202 is arranged on the other side of the casing 101, and the magnetic attraction member 203 is arranged on the other end of the shorting member 202.

Grounding member 201 is connected in order to realize that grounding member 201 is connected with short circuit member 202 through butt joint subassembly 100 with short circuit member 202, and fixedly connected with magnetism is inhaled piece 203 on the short circuit member 202, and secondary binding post through magnetism is inhaled piece 203 and voltage transformer on contacts to realize that the effect on voltage transformer secondary binding post screw can be inhaled fast to the short circuit device, simultaneously owing to connect through the mode of magnetism, thereby make it reach the reliability height, convenient to use's effect.

Example 2

Referring to fig. 2 to 5, the present embodiment is based on the previous embodiment, which is a second embodiment of the present invention.

Specifically, the driving member 102 includes a rotating rod 102a and a protrusion 102b, the rotating rod 102a is rotatably connected to the housing 101 through a thread, one end of the rotating rod 102a is located outside the housing 101, and the protrusion 102b is fixed to the rotating rod 102a and located inside the housing 101.

When the worker needs to fix the connected wires, the worker can rotate the rotating rod 102a, and since the convex block 102b is fixedly connected to the outer surface of the rotating rod 102a, when the rotating rod 102a rotates, the convex block 102b also rotates, so that the connecting wires can be mounted or dismounted.

The driving member 102 further includes a handle 102c and a handle 102d, the handle 102c is fixed to the rotating rod 102a and located outside the housing 101, and the handle 102d is fixed to the handle 102 c.

A handle 102c is fixedly connected to one end of the rotating rod 102a, and a handle 102d is fixedly connected to the handle 102c so that a worker can rotate the rotating rod 102a manually.

The elastic member 103 comprises a pressing plate 103a and a spring sleeve 103b, the pressing plate 103a is located at the bottom of the rotating rod 102a, a groove H is formed in the pressing plate 103a, the spring sleeve 103b is fixed at the bottom of the pressing plate 103a, a through hole K is formed in the spring sleeve 103b, and a connecting hole L is formed in the shell 101.

When the connecting wires need to be installed, a worker can enable the connecting wires to enter the shell 101 through the connecting holes L, then place the connecting wires into the spring sleeves 103b through the through holes K, and then enable the rotating rod 102a to rotate at a certain angle, the bumps 102b on the rotating rod 102a can be in contact with the extrusion plate 103a and press the extrusion plate 103a to enable the extrusion plate 103a to extrude the spring sleeves 103b downwards, so that the effect of fixing the connecting wires is achieved, the working reliability of the connecting wires is improved, meanwhile, in order to better fix the condensing wires, the extrusion plate 103a is provided with the grooves H, when the extrusion plate 103a moves downwards to fix the connecting wires, the grooves H can be clamped on the connecting wires, the connecting wires are further fixed, and the shell 101 is provided with the connecting holes L to be suitable for different working environments.

The bus bar 104 includes a bus bar 104a, and the bus bar 104a is fixed to the inner wall of the housing 101 and located at the bottom of the spring sleeve 103 b.

The bus bar 104a is in a circular arc structure, the bus bar 104a can be matched with the spring sleeve 103b, and the bus bar 104a is fixedly connected to the bottom of the spring sleeve 103b so that the connecting wires can be connected with each other.

The ground member 201 includes a main ground line 201a, and the main ground line 201a is disposed outside the housing 101.

The main ground line 201a is connected to the outside of the housing 101, so that the short-circuit device is connected to the ground device.

The shorting member 202 includes a first conductive line 202a, a second conductive line 202b, and a third conductive line 202c, and one end of the first conductive line 202a, the second conductive line 202b, and the third conductive line 202c is disposed outside the housing 101.

First wire 202a, second wire 202b and third wire 202c are connected to the outside of case 101, so that the shorting device is connected to the voltage transformer.

The magnetic element 203 includes a magnetic head 203a, and the magnetic head 203a is fixed on the first conductive wire 202a, the second conductive wire 202b, and the third conductive wire 202c, respectively.

The magnetic suction head 203a is in a cross structure, the magnetic suction head 203a is fixedly connected to the first wire 202a, the second wire 202b and the third wire 202c and is connected with a secondary wiring terminal of the voltage transformer through screws of the magnetic suction head 203a, so that short circuit grounding of three windings on the secondary side of the voltage transformer is realized, the electric preventive test of the voltage transformer on the secondary side and the ground can be carried out only by pressurizing on the primary side, after the test is finished and wiring is replaced, the magnetic suction head 203a on the first wire 202a is taken down from the wiring terminal screws and is sucked on the primary winding screws of the voltage transformer, the electric preventive test of the secondary winding of the voltage transformer on the primary winding and the ground can be carried out, and by analogy, the electric preventive test of the tertiary secondary winding on the primary winding and the ground can be completed, therefore, the wiring time of the test is saved, and the effect of improving the test efficiency is achieved.

Example 3

Referring to fig. 1 to 5, a third embodiment of the present invention is based on the first two embodiments.

Specifically, the materials of the housing 101, the pressing plate 103a, and the spring bushing 103b are all rubber.

Because the rubber has electrical insulation, the rubber is selected as the materials of the shell 101, the extrusion plate 103a and the spring sleeve 103b, so that the working reliability of the short-circuit device is improved, and the safety of workers during working is ensured.

The magnetic attraction head 203a is provided with a second through hole T.

Through having seted up No. two through-holes T on magnetic suction head 203a, the staff accessible No. two through-holes T fixes magnetic suction head 203a better on No. one wire 202a, no. two wires 202b and No. three wires 202c, also can change the magnetic suction head 203a that damages through No. two through-holes T when magnetic suction head 203a takes place to damage simultaneously.

When the transformer is used, a worker can firstly enter the main ground wire 201a, the first lead 202a, the second lead 202b and the third lead 202c into the shell 101 through the connecting hole L, then place the connecting leads into the spring sleeve 103b through the first through hole K, manually rotate the handle 102c to rotate the rotary rod 102a at a certain angle, the lug 102b on the rotary rod 102a can be contacted with the pressing plate 103a and press the pressing plate 103a to downwards press the spring sleeve 103b, so that the main ground wire 201a, the first lead 202a, the second lead 202b and the third lead 202c are contacted with and communicated with the busbar 104a, since the rotary rod 102a is rotatably connected with the shell 101 through threads, and the elasticity of the spring sleeve 103b is insufficient to enable the rotary rod 102a to reversely rotate, then the main ground wire 201a is connected with the grounding device, then the magnetic suction head 203a is connected with a screw of a secondary terminal on the voltage transformer, so that three windings of the voltage transformer are grounded, the primary winding of the voltage transformer is short-circuited, the voltage transformer can be replaced once, the secondary winding of the voltage transformer, the secondary winding can be replaced and the secondary wiring terminal of the voltage transformer, and the primary test can be carried out, and the secondary wiring of the transformer can be carried out, and the primary test can be carried out, and the secondary wiring of the secondary winding of the transformer can be prevented.

It should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.

Claims

1. The utility model provides a special quick short circuit device of voltage transformer preventive test which characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,

the butt joint assembly (100) comprises a shell (101), a driving piece (102), an elastic piece (103) and a confluence piece (104), wherein the driving piece (102) is arranged in the shell (101), the elastic piece (103) is arranged at the bottom of the driving piece (102) and is positioned in the shell (101), and the confluence piece (104) is fixed on the inner wall of the shell (101) and is positioned at the bottom of the elastic piece (103); and

coupling assembling (200), inhale piece (203) including ground connection piece (201), short circuit piece (202) and magnetism, ground connection piece (201) set up in one side of casing (101), the one end of short circuit piece (202) set up in the opposite side of casing (101), magnetism is inhaled piece (203) and is located the other end of short circuit piece (202).

2. The special quick short-circuit device for voltage transformer preventive tests as claimed in claim 1, characterized in that: the driving piece (102) comprises a rotating rod (102 a) and a protruding block (102 b), the rotating rod (102 a) is rotatably connected with the shell (101) through threads, one end of the rotating rod (102 a) is located on the outer side of the shell (101), and the protruding block (102 b) is fixed on the rotating rod (102 a) and located in the shell (101).

3. The special quick short-circuit device for voltage transformer preventive tests as claimed in claim 2, characterized in that: the driving piece (102) further comprises a handle (102 c) and a handle rod (102 d), the handle (102 c) is fixed on the rotating rod (102 a) and located on the outer side of the shell (101), and the handle rod (102 d) is fixed on the handle (102 c).

4. The special quick short-circuit device for the voltage transformer preventive test, according to claim 3, is characterized in that: the elastic piece (103) comprises an extrusion plate (103 a) and a spring sleeve (103 b), the extrusion plate (103 a) is located at the bottom of the rotating rod (102 a), a groove (H) is formed in the extrusion plate (103 a), the spring sleeve (103 b) is fixed to the bottom of the extrusion plate (103 a), a one-number through hole (K) is formed in the spring sleeve (103 b), and a connecting hole (L) is formed in the shell (101).

5. The special quick short-circuit device for the voltage transformer preventive test, according to claim 4, is characterized in that: the bus bar piece (104) comprises a bus bar (104 a), and the bus bar (104 a) is fixed on the inner wall of the shell (101) and is positioned at the bottom of the spring sleeve (103 b).

6. The special quick short-circuit device for voltage transformer preventive tests as claimed in claim 5, characterized in that: the grounding piece (201) comprises a main grounding line (201 a), and the main grounding line (201 a) is arranged outside the shell (101).

7. The special quick short-circuit device for the voltage transformer preventive test as claimed in claim 5 or 6, wherein: the short connecting piece (202) comprises a first conducting wire (202 a), a second conducting wire (202 b) and a third conducting wire (202 c), and one ends of the first conducting wire (202 a), the second conducting wire (202 b) and the third conducting wire (202 c) are arranged on the outer side of the shell (101).

8. The special quick short-circuit device for voltage transformer preventive test of claim 7, characterized in that: the magnetic attraction piece (203) comprises a magnetic attraction head (203 a), and the magnetic attraction head (203 a) is respectively fixed on the first lead (202 a), the second lead (202 b) and the third lead (202 c).

9. The special quick short-circuit device for voltage transformer preventive tests of claim 8, characterized in that: the shell (101), the extrusion plate (103 a) and the spring sleeve (103 b) are all made of rubber.

10. The special quick short-circuit device of voltage transformer preventative test of claim 9, characterized by: and a second through hole (T) is formed in the magnetic suction head (203 a).