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CN-122025389-A - Current transformer equalizing ring

CN122025389ACN 122025389 ACN122025389 ACN 122025389ACN-122025389-A

Abstract

The invention relates to a grading ring of a current transformer, which belongs to the technical field of grading rings and comprises a first semi-circular pipe, a second semi-circular pipe, a plurality of fixing plates, a plurality of connecting plates and a plurality of screws, wherein the first semi-circular pipe and the second semi-circular pipe are oppositely arranged, the opposite ends of the first semi-circular pipe and the second semi-circular pipe are mutually connected in an inserting mode to form an annular pipe, the plurality of fixing plates are fixed outside a first port of a tee shell at intervals along the circumferential direction or are fixed outside a sleeve at intervals along the circumferential direction, fixing holes are formed in the fixing plates, the connecting plates are fixed outside the annular pipe at intervals along the circumferential direction, the connecting holes are respectively arranged opposite to the fixing holes, and the screws are respectively fixed in the connecting holes and the fixing holes which are oppositely arranged. According to the invention, the annular pipe is formed by mutually inserting the first semi-annular pipe and the second semi-annular pipe which are oppositely arranged, so that the uniform pressure equalizing pipe structure is replaced, the requirements of on-site disassembly and assembly and convenience in transportation can be met, damage caused by collision is avoided, and the service life of the pressure equalizing ring is prolonged.

Inventors

  • YUE GUANGHUA
  • TIAN CHAOQUN
  • WU ZHIGUO
  • ZHAO XINKE
  • HAO MENGYANG
  • YANG QIFAN
  • LI YANG
  • CHEN LONG
  • LIU JIAJIA
  • LI HUA
  • YUAN XING
  • ZHANG JING
  • CHEN YIJIA
  • WEI XIAOYAO
  • SHI LUPEI

Assignees

  • 河南平高电气股份有限公司

Dates

Publication Date
20260512
Application Date
20251218

Claims (4)

  1. 1. The grading ring of the current transformer comprises a three-way shell (5) and a sleeve (6), wherein a first port is formed in the bottom end of the three-way shell (5), the top end of the sleeve (6) is fixed at the first port of the three-way shell (5), and the grading ring is characterized by comprising: The first semi-circular pipe (1) and the second semi-circular pipe (2) are oppositely arranged, and opposite ends of the first semi-circular pipe (1) and the second semi-circular pipe (2) are mutually connected in an inserting mode, so that the first semi-circular pipe (1) and the second semi-circular pipe (2) form an annular pipe, and the annular pipe is sleeved at the joint of the three-way shell (5) and the sleeve (6) in a clearance mode; The three-way shell comprises a plurality of fixing plates (3), a plurality of connecting plates (4) and a plurality of screws, wherein the fixing plates (3) are fixed outside a first port of the three-way shell (5) at intervals along the circumferential direction or are fixed outside the sleeve (6) at intervals along the circumferential direction, fixing holes are formed in the fixing plates, the connecting plates (4) are fixed outside the annular tube at intervals along the circumferential direction, connecting holes are formed in the connecting plates, the connecting holes are respectively arranged opposite to the fixing holes, and the screws are respectively fixed in the connecting holes and the fixing holes which are arranged opposite to each other.
  2. 2. The equalizing ring of the current transformer according to claim 1, further comprising a first inserting cylinder (7) and a second inserting cylinder, wherein the first inserting cylinder (7) is fixed at one end of the first semi-circular pipe (1) and is provided with a first annular groove (11) on the inner cylinder wall at the other end of the first semi-circular pipe (1), the second inserting cylinder is fixed at one end of the second semi-circular pipe (2) and is provided with a second annular groove on the inner cylinder wall at the other end of the second semi-circular pipe (2), and the first inserting cylinder (7) is inserted into the second annular groove and the second inserting cylinder is inserted into the first annular groove (11).
  3. 3. The grading ring of the current transformer according to claim 2, further comprising a plurality of first pins and a plurality of second pins, wherein a plurality of first pin holes (71) are formed in the first insertion barrel (7) and a plurality of first pin holes are formed in the second annular groove, the plurality of first pin holes are respectively arranged opposite to the plurality of first pin holes (71), a plurality of second pin holes are formed in the second insertion barrel and a plurality of second pin holes (111) are formed in the first annular groove (11), the plurality of second pin holes (111) are respectively arranged opposite to the plurality of second pin holes, the plurality of first pins are respectively inserted and fixed in the first pin holes and the first pin holes (71) which are oppositely arranged, and the plurality of second pins are respectively inserted and fixed in the second pin holes (111) and the second pin holes which are oppositely arranged.
  4. 4. The equalizing ring of the current transformer according to claim 1, further comprising a first shielding ring (8) and a second shielding ring (9), wherein two opposite sides of the tee shell (5) are respectively provided with a second port and a third port, the first shielding ring (8) is sleeved and fixed outside the second port of the tee shell (5) through a first bracket, and the second shielding ring (9) is sleeved and fixed outside the third port of the tee shell (5) through a second bracket.

Description

Current transformer equalizing ring Technical Field The invention relates to the technical field of equalizing rings, in particular to a equalizing ring of a current transformer. Background The zero-voltage grounding of the current transformer is gradually realized through the sleeve from the top high voltage, voltage distortion exists at the joint of the sleeve and the three-way shell, and the equalizing ring is required to be installed to ensure the insulating performance of the product. At present, the equalizing ring is generally of an integrated structure, and before the final assembly of the product, the whole equalizing ring is required to be sleeved at the joint of the three-way shell and the sleeve, but due to the fact that the size and the weight of the equalizing ring are large, the equalizing ring is heavy, the equalizing ring is extremely easy to collide and scratch during transportation or field installation, the equalizing ring is damaged, and the service life of the equalizing ring is influenced. Therefore, how to design a equalizing ring of a current transformer with simple structure, easy disassembly and transportation is a problem to be solved by those skilled in the art. Disclosure of Invention The invention provides a equalizing ring of a current transformer, which solves the technical problems of inconvenient transportation and inconvenient disassembly and assembly caused by overlarge and overlarge weight of the existing uniform ring body. The technical scheme includes that the current transformer equalizing ring comprises a three-way shell and a sleeve, wherein a first port is formed in the bottom end of the three-way shell, the top end of the sleeve is fixed at the first port of the three-way shell, the current transformer equalizing ring comprises a first semi-annular pipe, a second semi-annular pipe, a plurality of fixing pieces, a plurality of connecting pieces and a plurality of screws, the first semi-annular pipe and the second semi-annular pipe are oppositely arranged, opposite ends of the first semi-annular pipe and the second semi-annular pipe are mutually connected in an inserting mode, the first semi-annular pipe and the second semi-annular pipe form an annular pipe, the annular pipe is sleeved at the joint of the three-way shell and the sleeve in a gap mode, the fixing pieces are fixed outside the first port of the three-way shell at intervals in the circumferential direction or are fixed outside the sleeve at intervals in the circumferential direction, the fixing holes are formed in the fixing pieces, the connecting pieces are fixed outside the annular pipe at intervals in the circumferential direction, the connecting holes are respectively opposite to the fixing holes, and the screws are respectively arranged in the connecting holes. The invention has the beneficial effects that the equalizing ring structure of the traditional current transformer is improved, the annular pipe is formed by mutually inserting the first semi-annular pipe and the second semi-annular pipe which are oppositely arranged, the integral equalizing pipe structure is replaced, the requirements of on-site disassembly and assembly and convenience in transportation can be met, damage caused by collision is avoided, and the service life of the equalizing ring is prolonged. On the basis of the technical scheme, the invention can be improved as follows. The novel high-speed water heater further comprises a first inserting cylinder and a second inserting cylinder, wherein the first inserting cylinder is fixed at one end of the first semi-circular pipe, a first annular groove is formed in the inner cylinder wall at the other end of the first semi-circular pipe, the second inserting cylinder is fixed at one end of the second semi-circular pipe, a second annular groove is formed in the inner cylinder wall at the other end of the second semi-circular pipe, and the first inserting cylinder is inserted into the second annular groove and the second inserting cylinder is inserted into the first annular groove. The adoption of the method has the further beneficial effects that the first plug barrel is firstly plugged into the second annular groove, and then the second plug barrel is plugged into the first annular groove, so that the plugging stability of the first semi-annular pipe and the second semi-annular pipe can be improved, and the use reliability of the equalizing ring is improved. The first pin inserting cylinder is provided with a plurality of first pin holes, the second ring groove is provided with a plurality of first pin holes, and the plurality of first pin holes are respectively arranged opposite to the plurality of first pin holes; the second inserting cylinder is provided with a plurality of second nail holes, the first annular groove is provided with a plurality of second pin holes, the second pin holes are respectively and oppositely arranged with the second nail holes, the first pins are respect