CN218071002U - Transformer neutral point grounding protection device - Google Patents
Transformer neutral point grounding protection device Download PDFInfo
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- CN218071002U CN218071002U CN202220607426.3U CN202220607426U CN218071002U CN 218071002 U CN218071002 U CN 218071002U CN 202220607426 U CN202220607426 U CN 202220607426U CN 218071002 U CN218071002 U CN 218071002U
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- fixedly connected
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Abstract
The utility model discloses a transformer neutral point grounding protection device, which comprises a mounting seat, an isolating switch, a lightning arrester, a supporting insulator, a current transformer and a protection box, wherein a magnetic absorption type connecting mechanism is arranged on the side surface of the protection box, one end of the magnetic absorption type connecting mechanism is fixedly connected with one end of a first connecting plate through a screw sleeve, the other end of the first connecting plate is fixedly connected with the lightning arrester, and the lightning arrester is connected with the isolating switch; the magnetic type connecting mechanism is characterized in that the other end of the magnetic type connecting mechanism is fixedly connected with one end of a second connecting plate through a threaded sleeve, the other end of the second connecting plate is fixedly connected with the top end of a supporting insulator, a jacking mechanism is fixed to the top end of the supporting insulator, the jacking mechanism is connected with a conducting rod in a clamping mode, and the conducting rod is arranged opposite to a lead rod of the current transformer. The transformer neutral point grounding protection device with the structure is convenient to install and maintain, and convenient and quick in clearance adjustment.
Description
Technical Field
The utility model belongs to the technical field of the transformer protector technique and specifically relates to a transformer neutral point protection device that connects to ground is related to.
Background
The transformer neutral point grounding protection device is widely applied in an electric power system, the existing transformer neutral point protection mainly adopts a mode of parallel operation of an arrester and a protection gap, the general installation is fixed outdoors, the outdoor environment is severe, so that the service life of the current transformer is greatly reduced, the prior art adopts a seal box to protect, but the existing seal box is simple in structure, the operation of connecting copper bars or connecting wires is inconvenient, and the installation is inconvenient.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a transformer neutral point ground protection device, the installation is convenient with the maintenance, clearance adjustment convenient and fast.
In order to achieve the purpose, the utility model provides a transformer neutral point grounding protection device, which comprises a mounting seat, an isolating switch, an arrester, a supporting insulator, a current transformer and a protection box, wherein the current transformer and the supporting insulator are arranged in the protection box, the arrester and the isolating switch are all fixed on the mounting seat, a magnetic absorption type connecting mechanism is arranged on the side surface of the protection box, one end of the magnetic absorption type connecting mechanism is fixedly connected with one end of a first connecting plate through a threaded sleeve, the other end of the first connecting plate is fixedly connected with the arrester, and the arrester is connected with the isolating switch;
the magnetic type connecting mechanism is characterized in that the other end of the magnetic type connecting mechanism is fixedly connected with one end of a second connecting plate through a threaded sleeve, the other end of the second connecting plate is fixedly connected with the top end of a supporting insulator, a jacking mechanism is fixed to the top end of the supporting insulator, the jacking mechanism is connected with a conducting rod in a clamping mode, and the conducting rod is arranged opposite to a lead rod of the current transformer.
Preferably, the magnetic type connecting mechanism comprises an insulating sleeve, a conductive block, a magnetic ring and an elastic joint.
Preferably, the insulating sleeve is in threaded connection with the side face of the protection box, the conductive block is fixed in the middle of the insulating sleeve, the magnetic rings are in threaded connection with two ends of the conductive block respectively, and the two elastic joints are arranged opposite to the two magnetic rings.
Preferably, the elastic joint includes contact plate, butt joint magnetic ring, contact spring, adapter sleeve and connecting rod, connecting rod one end with adapter sleeve threaded connection, be provided with in the adapter sleeve contact spring, contact spring one end with connecting rod fixed connection, the contact spring other end with contact plate fixed connection, butt joint magnetic ring threaded connection in the outside of adapter sleeve, threaded connection has the swivel nut on the connecting rod.
Preferably, a conductive ball is fixed at one end of the conductive rod opposite to the lead rod, a jacking groove is formed in the upper end of the conductive rod, and the conductive rod is inserted into a through hole in the top end of the supporting insulator.
Preferably, the jacking mechanism comprises a fixed hollow stud, a clamping ball, a jacking spring and a fixed column, the fixed column is in threaded connection with one end of the fixed hollow stud, the fixed column is fixedly connected with one end of the jacking spring, the other end of the jacking spring is fixedly connected with the clamping ball, the clamping ball is clamped in a jacking groove, and the other end of the second connecting plate is fixed on the fixed column through a nut.
Preferably, a scale plate is fixed on the side surface of the conducting rod.
Therefore, the utility model adopts the above structure a transformer neutral point grounding protection device has following beneficial effect:
(1) The magnetic type connecting mechanism is fixed on the side face of the protective box and is respectively connected with the supporting insulator and the lightning arrester, and the magnetic type connecting mechanism is convenient to install, and meanwhile, convenient to overhaul and can be used for independently disassembling all parts.
(2) The conducting rod is inserted into the top end of the supporting insulator through the jacking mechanism, the size of the gap is adjusted directly without other tools, and the adjustment is convenient and fast.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic structural view of a transformer neutral point grounding protection device of the present invention;
FIG. 2 is a schematic view of the structure at the position A of the present invention;
fig. 3 is a schematic view of the structure at the position B of the present invention.
Reference numerals
1. A mounting seat; 2. a current transformer; 21. a wire-guiding rod; 3. a support insulator; 4. a lightning arrester; 5. an isolating switch; 6. a protective box; 7. a conductive rod; 71. a conductive ball; 72. a scale plate; 8. a magnetic-type connecting mechanism; 81. an insulating sleeve; 82. a conductive block; 83. a magnetic ring; 84. an elastic joint; 84. an elastic joint; 841. a contact plate; 842. butting magnetic rings; 843. connecting sleeves; 844. a contact spring; 845. a connecting rod; 85. a threaded sleeve; 9. a jacking mechanism; 91. blocking the ball; 92. the spring is tightly propped; 93. fixing a column; 94. a nut; 95. and fixing the hollow stud.
Detailed Description
Examples
Fig. 1 is the utility model relates to a transformer neutral point grounding protection device's schematic structure diagram, fig. 2 is the utility model discloses a A department's schematic structure diagram, fig. 3 is the utility model discloses B department's schematic structure diagram, as shown in the figure, a transformer neutral point grounding protection device, including mount pad 1, isolator 5, arrester 4, supporting insulator 3, current transformer 2 and protective housing 6, current transformer 2 and supporting insulator 3 all set up in protective housing 6, and protective housing 6, arrester 4 and isolator 5 all are fixed in on the mount pad 1.
The formula coupling mechanism 8 is inhaled to the protection box 6 side is provided with magnetism, and the screw sleeve 85 fixed connection is passed through with first connecting plate one end to 8 one ends of formula coupling mechanism are inhaled to magnetism, the first connecting plate other end and 4 fixed connection of arrester, and arrester 4 is connected with isolator 5. The other end of the magnetic type connecting mechanism 8 is fixedly connected with one end of a second connecting plate through a threaded sleeve 85, and the other end of the second connecting plate is fixedly connected with the top end of the supporting insulator 3. The magnetic-type connecting mechanism 8 comprises an insulating sleeve 81, a conductive block 82, a magnetic ring 83 and an elastic joint 84. The insulating sleeve 81 is in threaded connection with the side surface of the protective box 6, a conductive block 82 is fixed in the middle of the insulating sleeve 81, and two ends of the conductive block 82 are respectively in threaded connection with a magnetic ring 83, two elastic joints 84 and two magnetic rings 83 which are arranged oppositely. The elastic joint 84 comprises a contact plate 841, a butting magnetic ring 842, a contact spring 844, a connecting sleeve 843 and a connecting rod 845, wherein one end of the connecting rod 845 is in threaded connection with the connecting sleeve 843, the contact spring 844 is arranged in the connecting sleeve 843, one end of the contact spring 844 is fixedly connected with the connecting rod 845, the other end of the contact spring 844 is fixedly connected with the contact plate 841, the butting magnetic ring 842 is in threaded connection with the outer side of the connecting sleeve 843, and a threaded sleeve 85 is in threaded connection with the connecting rod 845. The magnetic type connecting mechanism 8 is respectively connected with the supporting insulator 3 and the lightning arrester 4 and is connected with the lightning arrester 4 through the threaded sleeve 85, other tools are not needed, the installation and the disassembly are convenient, and meanwhile, the supporting insulator 3 and the lightning arrester 4 can be conveniently and independently disassembled, and the maintenance is convenient.
The top end of the supporting insulator 3 is fixed with a jacking mechanism 9, the jacking mechanism 9 is connected with a conducting rod 7 in a clamping mode, and the conducting rod 7 is arranged opposite to a lead rod 21 of the current transformer 2. The conductive ball 71 is fixed at one end of the conductive rod 7 opposite to the lead rod 21, the top end of the conductive rod 7 is provided with a jacking groove, the conductive rod 7 is inserted into the through hole at the top end of the supporting insulator 3, the extension length of the conductive rod 7 can be adjusted according to actual needs, and the size of the gap can be adjusted. The jacking mechanism 9 comprises a fixed hollow stud 95, a clamping ball 91, a jacking spring 93 and a fixed column 93, the fixed column 93 is in threaded connection with one end of the fixed hollow stud 95, the fixed column 93 is fixedly connected with one end of the jacking spring 93, the other end of the jacking spring 93 is fixedly connected with the clamping ball 91, the clamping ball 91 is clamped in a jacking groove, the jacking ball 91 enables the conducting rod 7 to keep the position unchanged when the conducting rod is not subjected to external force, and the reliability of a gap is guaranteed. The other end of the second connecting plate is fixed to the fixing post 93 by a nut 94. The side surface of the conducting rod 7 is fixed with a scale plate 72, which is convenient for the staff to observe the extension length of the conducting rod 7.
Therefore, the utility model adopts the above structure a transformer neutral point ground protection device, the installation is convenient with the maintenance, clearance adjustment convenient and fast.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those skilled in the art should understand that: the technical solution of the present invention can still be modified or replaced by other equivalent means, and the modified technical solution can not be separated from the spirit and scope of the technical solution of the present invention.
Claims (7)
1. The utility model provides a transformer neutral point protection device that connects ground, includes mount pad, isolator, arrester, support insulator, current transformer and protective housing, current transformer with support insulator all set up in the protective housing, the protective housing the arrester and isolator all is fixed in on the mount pad, its characterized in that: a magnetic suction type connecting mechanism is arranged on the side face of the protective box, one end of the magnetic suction type connecting mechanism is fixedly connected with one end of a first connecting plate through a threaded sleeve, the other end of the first connecting plate is fixedly connected with the lightning arrester, and the lightning arrester is connected with the isolating switch;
the magnetic type connecting mechanism is characterized in that the other end of the magnetic type connecting mechanism is fixedly connected with one end of a second connecting plate through a threaded sleeve, the other end of the second connecting plate is fixedly connected with the top end of a supporting insulator, a jacking mechanism is fixed to the top end of the supporting insulator, the jacking mechanism is connected with a conducting rod in a clamped mode, and the conducting rod is arranged opposite to a lead rod of the current transformer.
2. A transformer neutral grounding protection device according to claim 1, wherein: the magnetic type connecting mechanism comprises an insulating sleeve, a conductive block, a magnetic ring and an elastic joint.
3. A transformer neutral grounding protection device according to claim 2, wherein: the insulating sleeve is in threaded connection with the side face of the protective box, the conductive block is fixed in the middle of the insulating sleeve, the magnetic rings are in threaded connection with two ends of the conductive block respectively, and the two elastic joints are arranged opposite to the two magnetic rings.
4. A transformer neutral grounding protection apparatus according to claim 3, wherein: the elastic joint comprises a contact plate, a butt joint magnetic ring, a contact spring, a connecting sleeve and a connecting rod, wherein one end of the connecting rod is in threaded connection with the connecting sleeve, the contact spring is arranged in the connecting sleeve, one end of the contact spring is fixedly connected with the connecting rod, the other end of the contact spring is fixedly connected with the contact plate, the butt joint magnetic ring is in threaded connection with the outer side of the connecting sleeve, and a threaded sleeve is in threaded connection with the connecting rod.
5. A transformer neutral grounding protection device according to claim 1, wherein: the conductive rod is fixed with a conductive ball at one end opposite to the lead rod, a jacking groove is formed in the upper end of the conductive rod, and the conductive rod is inserted into a through hole in the top end of the supporting insulator.
6. The transformer neutral grounding protection device according to claim 5, wherein: the jacking mechanism comprises a fixed hollow stud, a clamping ball, a jacking spring and a fixed column, the fixed column is in threaded connection with one end of the fixed hollow stud, the fixed column is fixedly connected with one end of the jacking spring, the other end of the jacking spring is fixedly connected with the clamping ball, the clamping ball is arranged in a jacking groove, and the other end of the second connecting plate is fixed on the fixed column through a nut.
7. The transformer neutral grounding protection device according to claim 5, wherein: and a scale plate is fixed on the side surface of the conducting rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220607426.3U CN218071002U (en) | 2022-03-21 | 2022-03-21 | Transformer neutral point grounding protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220607426.3U CN218071002U (en) | 2022-03-21 | 2022-03-21 | Transformer neutral point grounding protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218071002U true CN218071002U (en) | 2022-12-16 |
Family
ID=84412099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220607426.3U Active CN218071002U (en) | 2022-03-21 | 2022-03-21 | Transformer neutral point grounding protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218071002U (en) |
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2022
- 2022-03-21 CN CN202220607426.3U patent/CN218071002U/en active Active
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