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CN-224216737-U - Partial discharge monitoring device

CN224216737UCN 224216737 UCN224216737 UCN 224216737UCN-224216737-U

Abstract

The utility model relates to the technical field of partial discharge monitoring, in particular to a partial discharge monitoring device which comprises a monitoring host and a monitoring probe which are electrically connected, wherein the waist of the monitoring host is arranged at the bottom of a penetrating and connecting mechanism, the monitoring probe is arranged at the top of the connecting mechanism, a supporting rope is arranged at the upper end of the connecting mechanism in a penetrating way, the supporting rope is of an annular structure, a first fixing mechanism and a second fixing mechanism are respectively arranged at two ends of the supporting rope, the first fixing mechanism and the second fixing mechanism are adhered to an optical cabinet, and the second fixing mechanism is used for controlling the supporting rope to rotate to adjust the position of the monitoring probe.

Inventors

  • LIU ZHIGANG

Assignees

  • 江苏炎启自动化有限公司

Dates

Publication Date
20260508
Application Date
20250506

Claims (10)

  1. 1. The partial discharge monitoring device is characterized by comprising a monitoring host (1) and a monitoring probe (2) which are electrically connected, wherein the waist of the monitoring host (1) penetrates through the bottom of a connecting mechanism (6), the monitoring probe (2) is arranged at the top of the connecting mechanism (6), a supporting rope (3) penetrates through the upper end of the connecting mechanism (6), the supporting rope (3) is of an annular structure, a first fixing mechanism (4) and a second fixing mechanism (5) are respectively arranged at two ends of the supporting rope (3), the first fixing mechanism (4) and the second fixing mechanism (5) are adhered to an open light cabinet, and meanwhile, the second fixing mechanism (5) controls the supporting rope (3) to rotate so as to adjust the position of the monitoring probe (2).
  2. 2. A partial discharge monitoring device according to claim 1, wherein the first fixing mechanism (4) and the second fixing mechanism (5) each comprise a cylinder (41), a piston (45) and a threaded rod (42), the piston (45) is arranged on the inner side of the cylinder (41) in a sealing manner, the end part of the threaded rod (42) is inserted into the piston (45) through bearing connection, and threads of the threaded rod (42) are arranged through the end wall of the cylinder (41).
  3. 3. The partial discharge monitoring device according to claim 2, wherein a ring plate is integrally arranged on the outer side of one end of the opening of the cylinder body (41), a sealing layer (46) is arranged on the side wall of the ring plate, the sealing layer (46) is in direct contact with the switch cabinet, wheel bodies (44) are connected with each other on the outer side of the cylinder body (41) through a bracket (43), and two ends of the supporting rope (3) are sleeved on the two wheel bodies (44).
  4. 4. A partial discharge monitoring device according to claim 3, wherein the second fixing mechanism (5) further comprises a motor (51) and an electric control box (52), the motor (51) and the electric control box (52) are both arranged on the cylinder body (41), a power output shaft of the motor (51) is connected with a central shaft of the wheel body (44), and a polygonal groove is formed in the end face of the threaded rod (42) protruding out of the cylinder body (41).
  5. 5. The partial discharge monitoring device according to claim 4, wherein the connecting mechanism (6) comprises a splice plate group (63), the splice plate group (63) comprises a main plate (631), a mounting groove (632) is formed in the middle of the main plate (631), a clamping plate (636) is connected to the mounting groove (632) through bolts, and an end post of the monitoring probe (2) penetrates through a space formed by the clamping plate (636) and the main plate (631).
  6. 6. The partial discharge monitoring device according to claim 5, wherein a fixed arc plate (634) is fixedly arranged at the top of the main board (631), a spliced arc plate (635) is spliced above the fixed arc plate (634), and one side of the supporting rope (3) penetrates through a space formed by the spliced arc plate (635) and the fixed arc plate (634).
  7. 7. The partial discharge monitoring device according to claim 6, wherein an extrusion groove (633) is formed in the bottom of the main board (631), an extrusion plate (637) is connected to the extrusion groove (633) through bolts, the other side of the supporting rope (3) is arranged to penetrate through the extrusion groove (633), and the extrusion plate (637) is arranged to press the supporting rope (3).
  8. 8. The partial discharge monitoring device according to claim 5, wherein the connecting mechanism (6) further comprises a clamping device (62), the clamping device (62) comprises two clamping plates (621) which are symmetrically arranged, driving plates (623) are arranged at adjacent ends of the two clamping plates (621), and the two driving plates (623) are sleeved at two ends of the same bidirectional screw (624) in a threaded manner.
  9. 9. The partial discharge monitoring device according to claim 8, wherein the connecting mechanism (6) further comprises a connecting plate (61), the top of the connecting plate (61) is hinged to the bottom of the main plate (631), the bottom of the connecting plate (61) is attached to the adjacent end parts of the two clamping plates (621), the side walls, which are contacted with the clamping plates (621), of the connecting plate (61) are respectively provided with a clamping groove (611) and a clamping column (622), and the clamping columns (622) are installed in the clamping grooves (611).
  10. 10. The partial discharge monitoring device as set forth in claim 9, wherein a sliding hole (612) is further provided at the bottom of the connecting plate (61), the sliding hole (612) is located between two fastening grooves (611) distributed up and down, and the driving plate (623) is disposed through the sliding hole (612).

Description

Partial discharge monitoring device Technical Field The utility model relates to the technical field of partial discharge monitoring, in particular to a partial discharge monitoring device. Background The transformer substation is an important pivot of the power system, the switch cabinet is used as key equipment for controlling and protecting power equipment in the transformer substation, and the running state of the switch cabinet directly affects the safety and stability of the power system. Insulating components in the switch cabinet, such as insulators, cable terminals, buses and the like, can gradually decrease in insulating performance due to the effects of various factors such as electric fields, heat, mechanical stress and the like in the long-term operation process, and partial discharge phenomenon can possibly occur. The partial discharge gradually erodes the insulating material, further worsens the insulating performance, and finally can lead to insulation breakdown, and serious accidents such as short circuit, power failure and the like are caused. Currently, the measures for measuring partial discharge are mostly completed by professionals holding a handheld partial discharge tester. In the operation process, an operator needs to select test points and set test parameters according to requirements, and accurately analyze and judge the detected signals. If the skill of the operator is insufficient or experience is insufficient, improper selection of test points and unreasonable parameter setting may be caused, so that partial discharge signals cannot be accurately detected, or erroneous judgment is made on the detection result. In addition, the handheld partial discharge tester is mainly used for on-site detection at regular or irregular intervals, and cannot monitor the switch cabinet in real time and for a long time. The partial discharge condition of the switch cabinet may develop along with time change, and the handheld tester can only detect the partial discharge condition at a specific moment and cannot capture the dynamic change process of discharge in time. For some intermittent partial discharge phenomena, the handheld tester may not be able to find in time due to limited detection time, thereby missing the best opportunity for fault early warning. If the long-time partial discharge monitoring can be carried out on the switch cabinet, the real-time insulation condition of the switch cabinet can be mastered, potential faults can be early warned in advance, the reasonable arrangement of maintenance plans by operation and maintenance personnel is facilitated, the power failure time and times are reduced, and the reliable power supply of the power system is ensured. Disclosure of Invention The utility model aims to overcome the prior art problems and provide a novel partial discharge monitoring device which aims to realize better monitoring. In order to solve the technical problems, the utility model adopts the following technical scheme: The utility model provides a partial discharge monitoring devices, including the monitoring host computer and the monitoring probe that the electrical property links to each other, the waist of monitoring host computer runs through coupling mechanism's bottom setting, and monitoring probe installs at coupling mechanism's top, and runs through in coupling mechanism's upper end and be provided with the supporting rope, the supporting rope sets up to annular structure to be provided with first fixed establishment and second fixed establishment respectively at supporting rope's both ends, first fixed establishment and second fixed establishment adhesion are on the switch board, and the second fixed establishment control supporting rope rotates the position of adjusting monitoring probe simultaneously. Further, the first fixing mechanism and the second fixing mechanism comprise a cylinder body, a piston and a threaded rod, the piston is arranged on the inner side of the cylinder body in a sealing mode, the end portion of the threaded rod is inserted into the piston through bearing connection, and threads of the threaded rod penetrate through the end wall of the cylinder body. Further, a ring plate is integrally arranged on the outer side of one end of the opening of the cylinder body, a sealing layer is arranged on the side wall of the ring plate and is in direct contact with the switch cabinet, wheel bodies are connected to the outer side of the cylinder body through a bracket, and two ends of the supporting rope are sleeved on the two wheel bodies. Further, the second fixing mechanism further comprises a motor and an electric control box, the motor and the electric control box are both arranged on the cylinder, a power output shaft of the motor is connected with a central shaft of the wheel body, and a polygonal groove is formed in the end face of the threaded rod protruding out of the cylinder. Further, coupling mechanism includes the splice plate group, an