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CN-122017491-A - On-line detection equipment for partial discharge of transformer

CN122017491ACN 122017491 ACN122017491 ACN 122017491ACN-122017491-A

Abstract

The invention belongs to the technical field of transformer discharge detection, in particular to an on-line detection device for partial discharge of a transformer, which comprises a base and further comprises: the invention discloses a cable protection device, which comprises a detection mechanism arranged on a base, a connecting wire arranged below the detection mechanism and a mounting mechanism arranged at one end of the connecting wire far away from the detection mechanism, wherein the mounting mechanism is sleeved outside a cable, a monitoring component can be adjusted automatically by arranging the mounting mechanism to adapt to cables with different diameters, then a protection component is fixed outside the monitoring component, so that the exposed part of the cable and the monitoring component are completely wrapped, and protect this section cable, make the cable whole still be in insulating state, maintain the normal use of cable, keep the dryness of cable, avoid receiving damp and leading to the electric leakage with external contact, carry out extra support protection to monitoring module, avoid leading to taking off cable position to expose the sinle silk of department of skinning in the outside, cause the electric leakage dangerous, make the monitoring process more stable.

Inventors

  • LING XIAOYAN
  • XU ZHEN
  • PAN JIANNING

Assignees

  • 苏州赛通自动化技术有限公司

Dates

Publication Date
20260512
Application Date
20260210

Claims (9)

  1. 1. An on-line detection device for partial discharge of a transformer, comprising a base (1), characterized in that it further comprises: The device comprises a detection mechanism (2) arranged on a base (1), a connecting wire (3) arranged below the detection mechanism (2) and a mounting mechanism (4) arranged at one end, far away from the detection mechanism (2), of the connecting wire (3), wherein the mounting mechanism (4) is sleeved outside a cable (5); the installation mechanism (4) comprises an installation block (401) arranged at one end of the connecting wire (3), a protection component (402) arranged outside the installation block (401) and a monitoring component (403) arranged inside the protection component (402), and the monitoring component (403) is sleeved outside the cable (5).
  2. 2. The on-line detection device for partial discharge of a transformer according to claim 1, characterized in that said detection means (2) comprise: The protective box (201) is arranged above the base (1); a host (202), the host (202) being mounted inside a protective case (201); the connector (203), the below at host computer (202) is installed to connector (203), the tip of connector (203) is connected with connecting wire (3).
  3. 3. The on-line detection device for partial discharge of a transformer according to claim 2, characterized in that said detection means (2) further comprise: The sleeve (204) is sleeved at one end, far away from the protective box (201), of the connecting wire (3); a slideway (207), the slideway (207) being mounted outside the protective case (201); the adjusting plate (205), adjusting plate (205) is in sliding connection in slide (207), and the outside of sleeve pipe (204) is cup jointed with below of adjusting plate (205).
  4. 4. An on-line detection device for partial discharge of a transformer according to claim 3, characterized in that said detection means (2) further comprise: a dispersion assembly (206), the dispersion assembly (206) being mounted outside the protective box (201); The outer part of the clamping block (208) is in sliding connection with the inner part of the adjusting plate (205); The first clamping rod (209), first clamping rod (209) inserts in fixture block (208) and regulating plate (205) inside, first clamping rod (209) is fixed fixture block (208).
  5. 5. The on-line detection device for partial discharge of a transformer according to claim 4, wherein said detection means (2) further comprise: a second clamping rod (212), wherein the second clamping rod (212) is inserted into the slide way (207) and the adjusting plate (205); The connecting ring (211) is sleeved outside the mounting block (401), and the connecting ring (211) rotates coaxially with the mounting block (401) outside the mounting block (401); And one end of the adjusting rod (210) is arranged outside the clamping block (208), and the other end of the adjusting rod (210) is connected with the outside of the connecting ring (211).
  6. 6. The on-line detection apparatus for partial discharge of a transformer according to claim 4, wherein said dispersion assembly (206) comprises: A housing (2061), the housing (2061) being mounted outside the protective box (201); a rotating plate (2062), wherein the rotating plate (2062) is rotatably connected to the outside of the protective box (201), and three rotating plates (2062) are arranged side by side; The telescopic rod (2063), the telescopic rod (2063) is arranged below the rotating plate (2062), a connecting sleeve (2064) is arranged below the telescopic rod (2063), and the connecting sleeve (2064) is used for fixing the connecting wire (3); and a limit column (2065), wherein the limit column (2065) is in sliding connection with the inside of the housing (2061).
  7. 7. The on-line detection apparatus for partial discharge of a transformer according to claim 1, wherein said shielding assembly (402) comprises: the shell (4021), the shell (4021) is divided into two pieces which are sleeved outside the cable (5), the inside of the shell (4021) is connected with the outside of the mounting block (401), and clamping grooves (4022) are formed in two ends of the outside of the shell (4021); the air guide sleeve (4023), and the air guide sleeve (4023) is arranged above the shell (4021).
  8. 8. The on-line detection apparatus for partial discharge of a transformer of claim 7, wherein said shielding assembly (402) further comprises: an air bag (4025), the air bag (4025) is installed inside the shell (4021), and the air bag (4025) is placed at the joint of the shell (4021); A water absorption strip (4026), wherein the water absorption strip (4026) is arranged outside the air bag (4025), and the water absorption strip (4026) is arranged in the joint of the shell (4021); A spring (4024), the spring (4024) being mounted inside the balloon (4025).
  9. 9. The on-line detection device for partial discharge of a transformer according to claim 1, wherein said monitoring assembly (403) comprises: the sensor (4031) is rotationally connected with the mounting block (401), the sensor (4031) is divided into two pieces and is fixed through a nut (4032), and the sensor (4031) is sleeved outside the cable (5); -a copper pillar (4033), the copper pillar (4033) being mounted inside the sensor (4031), the copper pillar (4033) being in contact with the outside of the cable (5); a connection block (4034), wherein the connection block (4034) is arranged at one end of the copper column (4033); the binding ring (4035) is sleeved at one end of the copper column (4033) far away from the connecting block (4034).

Description

On-line detection equipment for partial discharge of transformer Technical Field The invention belongs to the technical field of transformer discharge detection, and particularly relates to online detection equipment for partial discharge of a transformer. Background When partial discharge occurs in the transformer, physical phenomena such as electric pulse, ultrasonic wave, light, heat and the like or chemical changes are generated. If partial discharge exists in the transformer, high-frequency electric disturbance is generated and propagates to all electric appliance circuits connected with the transformer, so that pulse current flows through neutral point grounding wires, oil tank grounding wires and the like, and partial discharge signals are detected at the measuring points by using a pulse current sensor so as to realize local on-line monitoring of the transformer. The ground wire perforation type installation is the most classical and standard installation mode of the high-frequency current transformer sensor in partial discharge monitoring, and during installation, the ground wire needs to pass through a round hole in the center of the sensor, and the ground wire needs to be stripped to remove an insulating layer, so that a metal conductor directly passes through the center of the sensor, but the part contacted with the sensor is easy to be wetted, and the service life of the sensor is influenced. Disclosure of Invention Aiming at the defects of the prior art, the technical scheme adopted by the invention for solving the technical problems is that the on-line detection equipment for partial discharge of the transformer comprises a base and also comprises: The device comprises a detection mechanism arranged on a base, a connecting wire arranged below the detection mechanism and a mounting mechanism arranged at one end of the connecting wire far away from the detection mechanism, wherein the mounting mechanism is sleeved on the outer side of a cable; The installation mechanism comprises an installation block arranged at one end of the connecting wire, a protection component arranged outside the installation block and a monitoring component arranged inside the protection component, and the monitoring component is sleeved on the outer side of the cable. Further, the detection mechanism includes: the protective box is arranged above the base; The host is arranged in the protective box; The connector is arranged below the host, and the end part of the connector is connected with the connecting wire. Further, the detection mechanism further includes: The sleeve is sleeved at one end of the connecting wire, which is far away from the protective box; The slideway is arranged at the outer side of the protective box; The adjusting plate is in sliding connection with the inside of the slide, and the lower part of the adjusting plate is sleeved with the outside of the sleeve. Further, the detection mechanism further includes: The dispersing assembly is arranged on the outer side of the protective box; The outer part of the clamping block is in sliding connection with the inner part of the adjusting plate; The first clamping rod is inserted in the clamping block and the adjusting plate, the clamping block is fixed by the first clamping rod, the adjusting plate is fixed in the slideway by the first clamping rod, and the fixing positions of the adjusting plate are correspondingly selected according to the heights of cables at different positions. Further, the detection mechanism further includes: The second clamping rod is inserted into the slide way and the adjusting plate; The connecting ring is sleeved outside the mounting block and rotates coaxially with the mounting block outside the mounting block; and one end of the adjusting rod is arranged outside the clamping block, and the other end of the adjusting rod is connected with the outside of the connecting ring. Further, the dispersion assembly includes: a cover case installed at an outside of the protective case; the rotating plates are connected to the outside of the protective box in a rotating way, and three rotating plates are arranged side by side; the telescopic rod is arranged below the rotating plate, and a connecting sleeve is arranged below the telescopic rod and used for fixing a connecting wire; And the limiting column is in sliding connection with the inside of the housing. Further, the guard assembly includes: The shell is divided into two pieces which are sleeved outside the cable, the inside of the shell is connected with the outside of the mounting block, clamping grooves are formed in the two ends of the outside of the shell, rubber interfaces are arranged at the two ends of the shell, and the middle of the shell is made of transparent or semitransparent materials (such as polycarbonate), so that cover opening inspection can be avoided, and whether the inside is abnormal or not can be directly observed; The air guide sleeve is arranged above