CN212516821U - Current transformer fixing device for transformer neutral point lightning arrester - Google Patents
Current transformer fixing device for transformer neutral point lightning arrester Download PDFInfo
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- CN212516821U CN212516821U CN202021741956.4U CN202021741956U CN212516821U CN 212516821 U CN212516821 U CN 212516821U CN 202021741956 U CN202021741956 U CN 202021741956U CN 212516821 U CN212516821 U CN 212516821U
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- current transformer
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- conducting rod
- insulator
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Abstract
The utility model relates to a current transformer fixing device for a transformer neutral point arrester, which comprises a sleeve, an insulator pressing plate, a sleeve baffle, a conducting rod and a current interaction sensor, wherein the insulator is fixedly arranged at one end of the sleeve through the insulator pressing plate, and the sleeve baffle is arranged at the other end of the sleeve; the conducting rod is transversely arranged, and two ends of the conducting rod are respectively fixedly connected with the insulator and the sleeve baffle, and the current transformer is arranged in the middle of the conducting rod and is characterized in that: the current transformer fixing device further comprises a fixing mechanism for fixing the current transformer. The utility model discloses the practicality is strong, easily promotes.
Description
Technical Field
The utility model belongs to the technical field of the transformer technique and specifically relates to a current transformer fixing device for transformer neutral point arrester is related to.
Background
The neutral point is also called zero point, and refers to the common point of star-shaped wiring in a three-phase or multi-phase alternating current system of the transformer. The neutral point of the transformer mainly has two working modes of grounding and non-grounding. The transformer neutral point may be subjected to overvoltage caused by lightning, operator frequency and resonance, for example, when lightning strikes occur, the maximum voltage at the neutral point may reach tens of times the normal operating voltage due to superposition of incident waves and reflected waves. These overvoltages act on the neutral point and may damage the insulation of the transformer neutral point.
The existing neutral point lightning arrester is characterized in that a current transformer is usually arranged on a conducting rod, and the conducting rod can deform under the condition that the conducting rod is subjected to gravity for a long time due to the gravity of the current transformer.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a transformer is with novel current transformer fixing device.
The technical scheme of the utility model is realized like this: a current transformer fixing device for a transformer neutral point lightning arrester comprises a sleeve, an insulator pressing plate, a sleeve baffle, a conducting rod and a current interaction sensor, wherein the insulator is fixedly arranged at one end of the sleeve through the insulator pressing plate, and the sleeve baffle is arranged at the other end of the sleeve; the conducting rod is transversely arranged, and two ends of the conducting rod are respectively fixedly connected with the insulator and the sleeve baffle, and the current transformer is arranged in the middle of the conducting rod and is characterized in that: the fixing mechanism is used for fixing the current transformer; the fixing mechanism comprises two Z-shaped brackets, two fixing screws and a clamping piece; the Z-shaped bracket and the clamping piece are respectively arranged on two sides of the current transformer; one end face of the Z-shaped bracket is mounted on the insulator through a bolt; the other end surface of the Z-shaped bracket is provided with a through hole; the clamping piece is provided with a mounting hole; two ends of the fixing screw respectively penetrate through the through hole and the mounting hole; and the end part is in threaded connection with a fastening nut.
Preferably: the clamping piece comprises a first mounting plate and a second mounting plate; horizontal through holes for the fixing screw rods to pass through are formed in the first mounting plate and the second mounting plate.
Preferably: the clamp includes a clamp plate body; two screw mounting holes concentric with the through hole on the Z-shaped bracket are formed in the clamping plate body; the middle part of the clamping plate body is provided with a conductive rod mounting hole; the conducting rod penetrates through the conducting rod mounting hole.
Preferably: and a wire hole for a wire of the current transformer to pass through is formed in the side wall of the sleeve.
Preferably: and a rubber sleeve for preventing guide damage is arranged on the wire guide hole.
Compared with the prior art, the utility model discloses the beneficial effect who brings does:
1. through being provided with this fixed establishment, can press from both sides current transformer tight between Z shape support and clamping piece, current transformer can produce frictional force under the pressure of Z shape support and clamping piece and its self action of gravity, and this frictional force is opposite with direction and gravity, consequently can offset current transformer self gravity to this prevents that the conducting rod from deforming and damaging.
It should be noted that, the Z-shaped bracket is installed on the insulator, so that the middle part of the conducting rod cannot store the pressure applied by the fixing mechanism, and the insulator is fixed on the pressure insulator applied by the fixing mechanism through the insulator pressing plate, so that the insulator cannot slide down due to the pressure, and the normal use of the current transformer cannot be influenced.
2. Through setting the clamping piece to mutually independent first mounting panel and second mounting panel, such setting can be fine when pressing from both sides tight current transformer the conducting rod that staggers, avoids bringing pressure for the conducting rod.
3. Be provided with the splint body of mistake trompil in the middle of first mounting panel and the second mounting panel to the tight mode of integration clamp can be convenient for install.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a schematic structural view of an embodiment of the present invention;
FIG. 2 is a schematic view of a clamp configuration;
fig. 3 is another schematic view of the clamping member.
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 efforts belong to the protection scope of the present invention.
Example 1
As shown in fig. 1-2, the utility model discloses a current transformer fixing device for transformer neutral point arrester, which comprises a sleeve 1, an insulator 2, an insulator pressing plate 3, a sleeve baffle 4, a conducting rod 5 and a current interaction sensor 6, wherein the insulator 2 is fixedly arranged at one end of the sleeve 1 through the insulator pressing plate 3, and the sleeve baffle 4 is arranged at the other end of the sleeve 1; the conducting rod 5 is transversely arranged, two ends of the conducting rod are respectively fixedly connected with the insulator 2 and the sleeve baffle 4, the current transformer 6 is arranged in the middle of the conducting rod 5, and in the specific embodiment of the utility model, the fixing mechanism 7 for fixing the current transformer 6 is also included; the fixing mechanism 7 comprises two Z-shaped brackets 71, two fixing screw rods 72 and a clamping piece 73; the Z-shaped bracket 71 and the clamping piece 73 are respectively arranged at two sides of the current transformer 6; one end face of the Z-shaped bracket 71 is mounted on the insulator 2 through a bolt; the other end surface of the Z-shaped bracket 71 is provided with a through hole; the clamping piece 73 is provided with a mounting hole; two ends of the fixing screw 72 respectively penetrate through the through hole and the mounting hole; and the end is threadedly connected with a tightening nut 74.
In the embodiment of the present invention, the clamping member 73 includes a first mounting plate 731 and a second mounting plate 732; the first mounting plate 731 and the second mounting plate 732 are both provided with transverse through holes for the fixing screws 72 to pass through.
In actual use, the number of the clamping pieces is the same as that of the Z-shaped brackets, and the transverse through holes in the clamping pieces and the through holes in the Z-shaped brackets are concentric and arranged in an equal diameter mode.
In the embodiment of the present invention, a wire hole 11 for passing a wire of the current transformer 6 is provided on the side wall of the sleeve 1.
In the embodiment of the present invention, a rubber sleeve 12 for preventing guide damage is installed on the wire guide 11.
Compared with the prior art, the utility model discloses the beneficial effect who brings does:
1. through being provided with this fixed establishment, can press from both sides current transformer tight between Z shape support and clamping piece, current transformer can produce frictional force under the pressure of Z shape support and clamping piece and its self action of gravity, and this frictional force is opposite with direction and gravity, consequently can offset current transformer self gravity to this prevents that the conducting rod from deforming and damaging.
It should be noted that, the Z-shaped bracket is installed on the insulator, so that the middle part of the conducting rod cannot store the pressure applied by the fixing mechanism, and the insulator is fixed on the pressure insulator applied by the fixing mechanism through the insulator pressing plate, so that the insulator cannot slide down due to the pressure, and the normal use of the current transformer cannot be influenced.
2. Through setting the clamping piece to mutually independent first mounting panel and second mounting panel, such setting can be fine when pressing from both sides tight current transformer the conducting rod that staggers, avoids bringing pressure for the conducting rod.
Example 2 differs from example 1 in that
As shown in fig. 3, in the embodiment of the present invention, the clamping member 73 includes a clamping plate body 731; two screw mounting holes concentric with the through hole on the Z-shaped bracket 71 are formed in the clamping plate body 731; the middle part of the clamping plate body 731 is provided with a conducting rod mounting hole 732; the conductive rod 5 passes through the conductive rod mounting hole 732.
It should be noted that the diameter of the conductive rod mounting hole is larger than that of the conductive rod so far, and the conductive rod mounting hole is concentrically mounted with the conductive rod.
Compared with the prior art, the utility model discloses the beneficial effect who brings does:
through setting the clamping piece to be provided with the splint body of wrong trompil to the tight mode of integration clamp, can be convenient for install.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A current transformer fixing device for a transformer neutral point lightning arrester comprises a sleeve, an insulator pressing plate, a sleeve baffle, a conducting rod and a current interaction sensor, wherein the insulator is fixedly arranged at one end of the sleeve through the insulator pressing plate, and the sleeve baffle is arranged at the other end of the sleeve; the conducting rod is transversely arranged, and two ends of the conducting rod are respectively fixedly connected with the insulator and the sleeve baffle, and the current transformer is arranged in the middle of the conducting rod and is characterized in that: the fixing mechanism is used for fixing the current transformer; the fixing mechanism comprises two Z-shaped brackets, two fixing screws and a clamping piece; the Z-shaped bracket and the clamping piece are respectively arranged on two sides of the current transformer; one end face of the Z-shaped bracket is mounted on the insulator through a bolt; the other end surface of the Z-shaped bracket is provided with a through hole; the clamping piece is provided with a mounting hole; two ends of the fixing screw respectively penetrate through the through hole and the mounting hole; and the end part is in threaded connection with a fastening nut.
2. The current transformer fixing device for the neutral point arrester of the transformer as claimed in claim 1, wherein: the clamping piece comprises a first mounting plate and a second mounting plate; horizontal through holes for the fixing screw rods to pass through are formed in the first mounting plate and the second mounting plate.
3. The current transformer fixing device for the neutral point arrester of the transformer as claimed in claim 1, wherein: the clamp includes a clamp plate body; two screw mounting holes concentric with the through hole on the Z-shaped bracket are formed in the clamping plate body; the middle part of the clamping plate body is provided with a conductive rod mounting hole; the conducting rod penetrates through the conducting rod mounting hole.
4. A current transformer fixing device for a neutral point arrestor of a transformer according to claim 2 or 3, wherein: and a wire hole for a wire of the current transformer to pass through is formed in the side wall of the sleeve.
5. The current transformer fixing device for the neutral point arrester of the transformer as claimed in claim 4, wherein: and a rubber sleeve for preventing guide damage is arranged on the wire guide hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021741956.4U CN212516821U (en) | 2020-08-20 | 2020-08-20 | Current transformer fixing device for transformer neutral point lightning arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021741956.4U CN212516821U (en) | 2020-08-20 | 2020-08-20 | Current transformer fixing device for transformer neutral point lightning arrester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212516821U true CN212516821U (en) | 2021-02-09 |
Family
ID=74384934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021741956.4U Active CN212516821U (en) | 2020-08-20 | 2020-08-20 | Current transformer fixing device for transformer neutral point lightning arrester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212516821U (en) |
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2020
- 2020-08-20 CN CN202021741956.4U patent/CN212516821U/en active Active
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