CN212229028U - Transformer core grounding current on-line monitoring and current limiting device - Google Patents
Transformer core grounding current on-line monitoring and current limiting device Download PDFInfo
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- CN212229028U CN212229028U CN202020604169.9U CN202020604169U CN212229028U CN 212229028 U CN212229028 U CN 212229028U CN 202020604169 U CN202020604169 U CN 202020604169U CN 212229028 U CN212229028 U CN 212229028U
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Abstract
The utility model discloses a transformer core earth current on-line monitoring and current-limiting device, including rain-proof cover, control center, heat sink, supporting leg, horizontal hydraulic press, vertical hydraulic press, connecting rod, choked flow resistance and current detection sensor, the control center top is located to rain-proof cover, the heat sink is located under the control center, the supporting leg is located under the control center, horizontal hydraulic press is located on the control center side, the connecting rod is fixed to be located on the horizontal hydraulic press removes the end side, vertical hydraulic press is located under the connecting rod, choked flow resistance is located under the vertical hydraulic press, current detection sensor locates under the choked flow resistance. The utility model belongs to transformer detection area specifically indicates one kind and extends the choked flow resistance through the hydraulic press, the electric current volume after the control iron core ground connection to utilize water-cooling heat dissipation to guarantee transformer iron core ground current on-line monitoring and the current limiting device of the permanent operation of device.
Description
Technical Field
The utility model belongs to the technical field of the transformer detects, specifically indicate transformer core ground current on-line monitoring and current limiting device.
Background
The power transformer is one of the important electrical devices in the power system, and its operation condition is directly related to the safety and stability of the power system operation. The statistical analysis of transformer accidents shows that the iron core accidents have a relatively high rate in the total transformer accidents, most of the iron core faults are caused by multipoint grounding of the iron core, when the multipoint grounding occurs to the iron core, a relatively large current flows through the iron core, the iron core is locally overheated, and local burning loss can be caused seriously, so that the current in the iron core of the transformer is necessary to be monitored in real time, the current in the iron core of the transformer is monitored in real time, and a monitoring device is required to be kept in an open state all the time, and a large amount of heat is generated.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a through the hydraulic press extension choked flow resistance, the electric current volume after the control iron core ground connection to utilize water-cooling heat dissipation to guarantee transformer iron core ground current on-line monitoring and the current limiting device of the permanent operation of device.
In order to realize the above functions, the utility model discloses the technical scheme who takes as follows: transformer core earth current on-line monitoring and current-limiting device, including rain-proof cover, control center, heat sink, supporting leg, horizontal hydraulic press, vertical hydraulic press, connecting rod, wire, choked flow resistance and current detection sensor, rain-proof cover is the setting of triangle-shaped structure, rain-proof cover locates the control center top, heat sink locates under the control center, the supporting leg is located under the control center, horizontal hydraulic press is located on the control center side, the connecting rod is fixed to be located on horizontal hydraulic press removal end side, vertical hydraulic press is located under the one end that the connecting rod kept away from horizontal hydraulic press, choked flow resistance is located under the vertical hydraulic press, current detection sensor locates under the choked flow resistance, wire one end is connected in choked flow resistance side, the wire other end is connected under the connecting rod, heat sink includes miniature water pump, input pipeline, circulation storehouse, cooling storehouse, output pipeline and heat conduction pole, the control center is located down to the circulation storehouse, circulation storehouse below is located in the cooling storehouse, micro water pump is located on the circulation storehouse side, input pipeline one end is connected in micro water pump, the input pipeline other end is connected in the cooling storehouse, output pipeline one end is connected in the cooling storehouse, the output pipeline other end is connected in the circulation storehouse, heat conduction pole one end is located on circulation storehouse inner wall bottom surface, the heat conduction pole other end is located in the control center for derive the heat of control center.
Further, control center includes treater, choked flow resistance adjustment module, ground current detection module and alarm module, the treater is located in the control center for handle and transmission signal, choked flow resistance adjustment module connects in the treater for adjust the size of choked flow resistance, ground current detection module connects in the treater for detect ground current's size, alarm module connects in the treater, when detecting ground current too big, sends out the police dispatch newspaper.
Furthermore, the horizontal hydraulic machine, the vertical hydraulic machine, the connecting rod, the lead, the flow resistance and the current detection sensor are symmetrically arranged by taking the central line of the control center as a symmetrical axis
Furthermore, a hanging block is arranged on the micro water pump, the surface of the hanging block, which is far away from the micro water pump, is connected to the lower part of the control center, and the water pump is fixed to the lower part of the control center through the hanging block.
Furthermore, a fixing block is arranged between the cooling bin and the circulating bin, and the positions of the cooling bin and the circulating bin are fixed through the fixing block, so that the operation of the cooling device is guaranteed.
Furthermore, rain-proof cover is equipped with the handle, makes this device portable.
The utility model adopts the above structure to gain beneficial effect as follows: the utility model provides a transformer core earth current on-line monitoring and current-limiting device easy operation, the mechanism is compact, reasonable in design, through the electric current on current detection sensor and choked flow resistance detection ground and when ground current is too big, control choked flow resistance reduces ground current, comes to cool down the processing to this device through addding the heat sink, prolongs the operating time of this device.
Drawings
Fig. 1 is an overall structure diagram of the transformer core grounding current on-line monitoring and current limiting device of the utility model;
fig. 2 is the utility model discloses transformer core ground current on-line monitoring and current limiting device's principle structure chart.
The device comprises a rain cover 1, a rain cover 2, a control center 3, a cooling device 4, supporting legs 5, a horizontal hydraulic machine 6, a vertical hydraulic machine 7, a connecting rod 8, a lead wire 9, a flow resistance resistor 10, a current detection sensor 11, a micro water pump 12, an input pipeline 13, a circulation cabin 14, a cooling cabin 15, an output pipeline 16, a heat conducting rod 17, a processor 18, a flow resistance resistor adjusting module 19, a grounding current detection module 20, an alarm module 21, a suspension block 22, a fixing block 23 and a handle.
Detailed Description
The technical solution of the present invention will be described in further detail with reference to the following embodiments, and the technical features or the connection relations of the present invention, which are not described in detail, are the prior art adopted.
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1-2, the transformer core ground current on-line monitoring and current limiting device of the present invention comprises a rain cover 1, a control center 2, a cooling device 3, a support leg 4, a horizontal hydraulic machine 5, a vertical hydraulic machine 6, a connecting rod 7, a wire 8, a current-limiting resistor 9 and a current-detecting sensor 10, wherein the rain cover 1 is arranged in a triangular structure, the rain cover 1 is arranged at the top of the control center 2, the cooling device 3 is arranged under the control center 2, the support leg 4 is arranged under the control center 2, the horizontal hydraulic machine 5 is arranged on the side of the control center 2, the connecting rod 7 is fixedly arranged on the side of the moving end of the horizontal hydraulic machine 5, the vertical hydraulic machine 6 is arranged under the end of the connecting rod 7 far away from the horizontal hydraulic machine 5, the current-limiting resistor 9 is arranged under the vertical hydraulic machine 6, 8 one end of wire is connected in the choked flow resistance 9 side, the 8 other ends of wire are connected under connecting rod 7, heat sink 3 includes miniature pump 11, input pipeline 12, circulation storehouse 13, cooling storehouse 14, output pipeline 15 and heat conduction pole 16, circulation storehouse 13 is located under control center 2, cooling storehouse 14 is located circulation storehouse 13 below, miniature pump 11 is located on circulation storehouse 13 side, input pipeline 12 one end is connected in miniature pump 11, the 12 other ends of input pipeline are connected in cooling storehouse 14, 15 one end of output pipeline is connected in cooling storehouse 14, the 15 other ends of output pipeline are connected in circulation storehouse 13, heat conduction pole 16 one end is located on circulation storehouse 13 inner wall bottom surface, the 16 other ends of heat conduction pole are located in control center 2.
The control center 2 comprises a processor 17, a choke resistance adjusting module 18, a ground current detecting module 19 and an alarm module 20, the processor 17 is arranged in the control center 2, the choke resistance adjusting module 18 is connected to the processor 17, the ground current detecting module 19 is connected to the processor 17, and the alarm module 20 is connected to the processor 17.
The horizontal hydraulic machine 5, the vertical hydraulic machine 6, the connecting rod 7, the lead wire 8, the flow resistance resistor 9 and the current detection sensor 10 are symmetrically arranged by taking the central line of the control center 2 as a symmetrical axis
The miniature water pump 11 is provided with a hanging block 21, and the surface of the hanging block 21 far away from the miniature water pump 11 is connected below the control center 2.
A fixed block 22 is arranged between the cooling bin 14 and the circulating bin 13.
And a handle 23 is arranged on the rain cover 1.
When the device is used, the device is firstly placed near a transformer, the transformer is conveniently monitored, the horizontal hydraulic machine 5 is started, the length is prolonged to a proper length, the vertical hydraulic machine 6 is started, the flow resistance 9 and the current detection sensor 10 are close to the ground, when the ground current is detected to be overlarge, the current detection sensor 10 sends signals to the processor 17, the processor 17 receives the signals and sends the signals to the flow resistance adjusting module 18, the grounding current detection module 19 and the alarm module 20, the alarm module 20 gives an alarm, the flow resistance adjusting module 18 controls the flow resistance 9 to increase the resistance, the ground current is controlled, the damage to the transformer is reduced, when the device is operated, the cooling device 3 sends water in the circulating bin 13 to the cooling bin 14 through the input pipeline 12 through the micro water pump 11 and then sends the water back to the circulating bin 13 through the output pipeline 15, the heat conducting rod 16 conducts heat in the control center 2 into the circulation chamber 13 by utilizing its own heat conducting property, and conducts the heat out through water.
The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.
Claims (6)
1. Transformer core ground current on-line monitoring and current-limiting device, its characterized in that: the device comprises a rain cover, a control center, a cooling device, supporting legs, a horizontal hydraulic machine, a vertical hydraulic machine, a connecting rod, a lead, a flow resistance resistor and a current detection sensor, wherein the rain cover is arranged in a triangular structure, the top of the control center is arranged on the rain cover, the cooling device is arranged under the control center, the supporting legs are arranged under the control center, the horizontal hydraulic machine is arranged on the side face of the control center, the connecting rod is fixedly arranged on the side face of the moving end of the horizontal hydraulic machine, the vertical hydraulic machine is arranged at one end, far away from the horizontal hydraulic machine, of the connecting rod, the flow resistance resistor is arranged under the vertical hydraulic machine, the current detection sensor is arranged under the flow resistance resistor, one end of the lead is connected to the side face of the flow resistance resistor, the other end, Output tube way and heat conduction pole, the control center is located down to the circulation storehouse, circulation storehouse below is located to the cooling storehouse, miniature pump is located on the circulation storehouse side, input tube way one end is connected in miniature pump, the input tube way other end is connected in the cooling storehouse, output tube way one end is connected in the cooling storehouse, the output tube way other end is connected in the circulation storehouse, heat conduction pole one end is located on circulation storehouse inner wall bottom surface, the heat conduction pole other end is located in the control center.
2. The transformer core grounding current on-line monitoring and current limiting device according to claim 1, characterized in that: the control center includes treater, choked flow resistance adjustment module, ground current detection module and alarm module, the treater is located in the control center, choked flow resistance adjustment module connects in the treater, ground current detection module connects in the treater, alarm module connects in the treater.
3. The transformer core grounding current on-line monitoring and current limiting device according to claim 1, characterized in that: the horizontal hydraulic machine, the vertical hydraulic machine, the connecting rod, the lead, the flow resistance resistor and the current detection sensor are symmetrically arranged by taking the central line of the control center as a symmetry axis.
4. The transformer core grounding current on-line monitoring and current limiting device according to claim 1, characterized in that: the miniature water pump is provided with a suspension block, and the surface of the suspension block, which is far away from the miniature water pump, is connected below the control center.
5. The transformer core grounding current on-line monitoring and current limiting device according to claim 1, characterized in that: and a fixed block is arranged between the cooling bin and the circulating bin.
6. The transformer core grounding current on-line monitoring and current limiting device according to claim 1, characterized in that: the rainproof cover is provided with a handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020604169.9U CN212229028U (en) | 2020-04-21 | 2020-04-21 | Transformer core grounding current on-line monitoring and current limiting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020604169.9U CN212229028U (en) | 2020-04-21 | 2020-04-21 | Transformer core grounding current on-line monitoring and current limiting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212229028U true CN212229028U (en) | 2020-12-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020604169.9U Active CN212229028U (en) | 2020-04-21 | 2020-04-21 | Transformer core grounding current on-line monitoring and current limiting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212229028U (en) |
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2020
- 2020-04-21 CN CN202020604169.9U patent/CN212229028U/en active Active
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