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Novel overvoltage limiter for autotransformer

A voltage limiter and transformer technology, applied in the parts, circuits, electrical components of transformers/inductors, etc., can solve the problems of removing the limiter, inconvenience, etc., and achieve easy state adjustment, avoid forward and backward movement, and facilitate inspection and maintenance. Effect

Active Publication Date: 2021-06-01
CHANGZHOU CHANGDA ELECTRICAL APPLIANCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the deficiencies of the prior art, the present invention provides a new type of overvoltage limiter for autotransformers, which has the advantages of being able to adjust the angle of the limiter during maintenance and inspection, and solves the problem of regular maintenance of traditional overvoltage limiters. In the process of maintenance, it is necessary to remove the limiter and cause inconvenience

Method used

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  • Novel overvoltage limiter for autotransformer
  • Novel overvoltage limiter for autotransformer
  • Novel overvoltage limiter for autotransformer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Example 1: See Figure 1-6 , comprising a limiter main body 1, a first fixing plate 3 and a plurality of cable sockets 2, the left and right sides of the top and bottom of the first fixing plate 3 are integrally formed with a metal plate 4, and the inside of the metal plate 4 is screwed and fixed The fixing bolt 5 of the first fixing plate 3 is fixedly connected with the first connection frame 6 at the middle part of the back of the limiter main body 1, and the second fixing plate 10 is fixedly connected at the front middle part of the first fixing plate 3, and the front side of the second fixing plate 10 is fixedly connected with the first connecting frame 6. Both left and right sides are fixedly connected with protruding plates 11, and the opposite surfaces of the two protruding plates 11 are provided with first recessed grooves 12 at positions close to the front, and the middle part of the front of the second fixed plate 10 is fixedly connected with a first protruding...

Embodiment 2

[0035] Example 2: Unlike Example 1, see Figure 7 The sides away from each other of the two third connecting rods 29 respectively protrude to the top and bottom positions of the convex plate 11, and the sides of the two third connecting rods 29 away from each other are fixedly connected with the third connecting plate 18. The three connecting plates 18 include a longitudinal plate and a vertical plate. The fronts of the longitudinal plates of the two third connecting plates 18 respectively protrude to the top and bottom positions of the limiter main body 1 with a space between them. The third connecting plate 18 The outer surface is set as a rough surface, and a second concave groove 20 is provided along the horizontal and vertical direction on the opposite surface of the longitudinal plate of the two third connecting plates 18 and at the position close to the front.

[0036] According to the above-mentioned structural design, the structure design of the device through the thi...

Embodiment 3

[0037] Example 3: Unlike Examples 1 and 2, see Figure 8 and Figure 9 The output end of the telescopic rod 23 has a semicircular structure and is adapted to the shape and size of the first concave groove 12 , and the rubber pad 13 is fixedly connected to the inside of the first concave groove 12 .

[0038] According to the above-mentioned structural design, the structural design of the rubber pad 13 of the device is more conducive to the staff to carry out the angle flipping of the limiter main body 1, that is, the subsequent observation and inspection operation, avoiding the constant maintenance during the maintenance of the limiter main body 1. It is in a loose state that affects the observation inspection.

[0039] When the present invention is in use: when the main body of the limiter 1 is used for a long time and its connection points need to be overhauled and maintained, the staff can first grasp the longitudinal plates of the two third connecting plates 18 to the side...

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Abstract

The invention relates to the technical field of limiters, and particularly discloses a novel overvoltage limiter for an autotransformer. Thenovel overvoltage limiter comprises a limiter main body, a first fixing plate and a plurality of cable jacks, wherein metal plates are integrally formed on the left and right sides of the top and bottom of the first fixing plate; and through the structural design of a first connecting frame, a second fixing plate, a convex plate, a first concave groove, a first convex block, a second connecting frame and a telescopic rod, the limiter main body has the state adjustable effect, the effect of convenient inspection and maintenance is achieved, and the problems that the limiter main body needs to be disassembled during regular inspection and maintenance is avoided, and the problem that a traditional overvoltage limiter needs to be disassembled in the maintenance process, inconvenience is brought to workers in the maintenance process, and subsequent normal use is influenced by the damage of the limiter main body caused by disassembling and assembling operations are avoided.

Description

technical field [0001] The invention relates to the technical field of limiters, in particular to a novel overvoltage limiter for autotransformers. Background technique [0002] The limiter, which belongs to the voltage adjustment equipment, limits some parameters of the machine to ensure the normal operation of the machine within the limited parameter value, and does not allow over-limit use. The purpose of the limiter is to maintain the safe and stable operation of the generator and avoid damage due to protection The action of the relay causes an abnormal shutdown. When installing the overvoltage limiter, it is necessary to connect the cable to the transformer. After the overvoltage limiter has been used for a long time, the staff needs to periodically check Carry out maintenance and inspection to avoid accidental loosening or falling off of the connection and cause hidden dangers in subsequent use. However, traditional overvoltage limiters are completely fixed in special ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F27/40
CPCH01F27/402
Inventor 李君
Owner CHANGZHOU CHANGDA ELECTRICAL APPLIANCE
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