CN209979082U - High-voltage isolating switch temperature on-line monitoring system - Google Patents
High-voltage isolating switch temperature on-line monitoring system Download PDFInfo
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- CN209979082U CN209979082U CN201920502469.3U CN201920502469U CN209979082U CN 209979082 U CN209979082 U CN 209979082U CN 201920502469 U CN201920502469 U CN 201920502469U CN 209979082 U CN209979082 U CN 209979082U
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 28
- 238000001514 detection method Methods 0.000 claims abstract description 23
- 238000012545 processing Methods 0.000 claims description 13
- 238000004891 communication Methods 0.000 claims description 11
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 239000000741 silica gel Substances 0.000 claims description 5
- 229910002027 silica gel Inorganic materials 0.000 claims description 5
- 230000017525 heat dissipation Effects 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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Abstract
The utility model discloses an online monitoring system of high voltage isolator temperature, high voltage isolator indicates and contact including touching, touch indicate including supplying contact male groove structure, including temperature-detecting device, temperature-detecting device fixes through pressing from both sides tight structural connection on groove structure's the outer wall, press from both sides tight structure and include clamping part and fixed part, clamping part and groove structure's outer wall presss from both sides tightly fixedly, fixed part fixed connection temperature-detecting device. Set up temperature-detecting device on touching the finger, can direct monitoring high voltage isolator inside temperature, monitoring data is more accurate to judge that whether contact and touch that can be more accurate contact are good, in time discover and handle the problem that isolator exists, improve isolator operational reliability, guarantee unit safety and stability and move. In addition, the temperature detection device is firmly fixed on the contact finger by designing a clamping structure, and is convenient to replace when the temperature detection device has problems.
Description
Technical Field
The utility model belongs to the electric power field, specifically speaking relates to a power plant isolator temperature on-line monitoring system.
Background
In recent years, the generator set is not scheduled to stop operation due to multiple damage events of the high-voltage isolating switch of the generator set. The main reason is that the contact between the contact of the isolating switch and the contact finger is poor, which causes heating and aggravates oxidation damage, if a certain phase is blown, the unit is not operated in full phase, and if the protection device does not act in time, the serious damage accident of the generator is caused. In the past, the temperature condition of a contact of an isolating switch is regularly monitored by an infrared imager, and if the outlet fault of the isolating switch is detected before the next monitoring period, the outlet fault cannot be timely discovered and processed. In recent years, a temperature monitoring module is additionally arranged near a contact or a contact finger of the disconnecting switch to monitor whether the disconnecting switch generates heat, but the effect is not obvious, because the temperature monitoring module is near the contact or the contact finger, but the internal heating condition can not be basically reflected, and whether the contact between the contact and the contact finger is good or not can not be found. If the switch is installed on a contact or a contact finger, but the unreasonable installation position influences the closing and opening of the switch, the most important basic functions of the switch are influenced, and the size is reduced, so that the scheme is not preferable.
Therefore, what the temperature detection device is installed at what position of the isolating switch can accurately detect the internal temperature of the isolating switch without influencing the opening and closing of the isolating switch, and how to firmly install the temperature detection device at the position and how to ensure good heat transfer between the temperature detection device and the internal temperature of the isolating switch is the problem to be solved by the technical personnel in the field.
In view of this, the present invention is provided.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in overcoming the not enough of prior art, provides an online monitoring system of high voltage isolator temperature.
In order to solve the technical problem, the utility model adopts the following basic concept: the utility model provides an online monitoring system of high voltage isolator temperature, high voltage isolator indicates and the contact including touching, touch indicate including supplying contact male groove structure, including temperature-detecting device, temperature-detecting device fixes through pressing from both sides tight structural connection on groove structure's the outer wall, press from both sides tight structure and include clamping part and fixed part, clamping part presss from both sides with groove structure's outer wall and fixes, fixed part fixed connection temperature-detecting device.
Furthermore, the clamping part comprises a first clamping part and a second clamping part, one end of the first clamping part and one end of the second clamping part are clamped and fixed with the outer wall of the groove structure, and the other end of the first clamping part and the other end of the second clamping part are connected with the fixing part.
Furthermore, the fixing part and the first clamping part, and the fixing part and the second clamping part are connected in an adjustable manner.
Preferably, one end of each of the first clamping portion and the second clamping portion, which is connected to the fixing portion, is provided with a plurality of tooth-shaped grooves or a plurality of tooth-shaped protrusions, and the fixing portion is provided with a plurality of tooth-shaped protrusions or a plurality of tooth-shaped grooves which are matched with the plurality of tooth-shaped grooves or the plurality of tooth-shaped protrusions.
More preferably, the place where the clamping part is tightly attached to the outer wall of the groove structure is provided with a rubber pad in a shape of inverted teeth.
Furthermore, the fixing part and the outer wall contact part of the groove structure, the fixing part and the temperature detection device connecting part are all provided with heat dissipation silica gel.
Further, the temperature detection device is arranged on the outer wall of the groove structure corresponding to the contact part of the inner wall of the groove structure and the contact.
Furthermore, the groove structure comprises two opposite side walls, and temperature detection devices are arranged on the two side walls.
Further, still include receiving processing apparatus and host computer, temperature-detecting device and receiving processing apparatus wireless communication connect, receiving processing apparatus and host computer wired communication connect.
Furthermore, the monitoring system also comprises an alarm device which is in communication connection with the upper computer.
After the technical scheme is adopted, compared with the prior art, the utility model following beneficial effect has.
1. The utility model provides a high voltage isolator temperature on-line monitoring system sets up temperature-detecting device on the outer wall of the contact finger that has the groove structure, can reach direct monitoring high voltage isolator internal temperature, and monitoring data is more accurate, thus can be more accurate judge whether contact and contact finger contact well, discover and handle the problem that isolator exists in time, improve isolator operational reliability, guarantee unit safety and stability operation; and the closing and the opening of the high-voltage isolating switch are not influenced.
2. The utility model discloses a set up and press from both sides tight structure, make temperature-detecting device firmly fix on touching the finger on the one hand, on the other hand makes things convenient for temperature-detecting device's change when temperature-detecting device goes wrong.
3. The utility model discloses a touching and indicating and clamping device, setting up heat dissipation silica gel between clamping device and the temperature-detecting device, more being favorable to touching and indicating to touch the heat transfer between indicating and the temperature-detecting device, further making the isolator's that temperature-detecting device detected temperature accuracy more.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
fig. 1 is a schematic structural diagram of the high-voltage isolating switch and the temperature detecting device of the present invention;
fig. 2 is a schematic view of the connection relationship between the contact finger and the temperature detecting device of the high-voltage isolating switch of the present invention;
fig. 3 is a schematic diagram of the connection between the temperature detection device and the receiving and processing device of the present invention and the upper computer.
In the figure: 1. a temperature sensor; 2. a contact finger; 3. a rain cover; 4. a contact; 5. a conductive rod; 6. a tooth-shaped rubber pad; 7. a clamping structure; 8. radiating silica gel; 9. a reception processing device; 10. a communication line; 11. and (4) an upper computer.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept by those skilled in the art with reference to specific embodiments.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments, and the following embodiments are used for illustrating the present invention, but do not limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, the high-voltage isolating switch includes a contact finger 2 and a contact 4, the contact finger 2 is communicated with a cable through a conductive rod 5, the contact 4 is communicated with the cable through the conductive rod 5, the contact finger 2 includes a groove structure into which the contact 4 can be inserted, and the contact 4 is inserted into the groove structure of the contact finger 2 to be in contact conduction with the contact finger 2 so as to communicate a circuit controlled by the contact finger 2. Poor contact between the isolating switch contact 4 and the contact finger 2 causes heating, aggravates oxidation damage, leads to the non-full-phase operation of the unit if a certain phase is blown, and causes serious damage accidents of the generator if the protection device does not act in time. Therefore, a high-voltage isolating switch temperature online monitoring system needs to be developed to accurately detect the temperature inside the high-voltage switch so as to judge whether the contact finger 2 and the contact 4 are in good contact.
The utility model provides an online monitoring system of high voltage isolator temperature, as shown in fig. 1 to 2, connect temperature-detecting device through pressing from both sides tight structure 7 and fix on groove structure's the outer wall, press from both sides tight structure 7 and include clamping part and fixed part, clamping part and groove structure's outer wall presss from both sides tightly fixedly, fixed part fixed connection temperature-detecting device. Set up temperature-detecting device and can accurately detect high voltage isolator's temperature on the one hand on the groove structure outer wall that touches finger 2, more accurate judgement touches finger 2 and contact 4 whether contact is good, and on the other hand temperature-detecting device sets up and does not influence high voltage isolator's closure and opening on touching the groove structure's that indicates outer wall. In addition, through setting up clamping structure 7, make temperature-detecting device firmly fix on touch finger 2 on the one hand, on the other hand makes things convenient for temperature-detecting device's change when temperature-detecting device goes wrong.
In one embodiment, in order to reduce the outdoor wind, the weather and the rain which are suffered by the high-voltage isolating switch, a rain cover 3 with an opening at one end is arranged outside the isolating switch, and the opening side of the rain cover 3 is inserted into the side facing the contact 4, so that the contact 4 is conveniently connected with and disconnected from the contact finger 2. One side of the rain cover 3 opposite to the opening end is provided with a through hole for the conductive rod 5 of the contact finger 2 to pass through. The clamping part comprises a first clamping part and a second clamping part, one end of the first clamping part and one end of the second clamping part are clamped and fixed with the outer wall of the groove structure, and the other end of the first clamping part and the other end of the second clamping part are connected with the fixing part. Furthermore, the fixing part and the first clamping part, and the fixing part and the second clamping part are connected in an adjustable manner. The clamping structure 7 is convenient to be installed on the outer wall of the groove structure of the contact finger 2.
Specifically, one end of each of the first clamping portion and the second clamping portion, which is connected with the fixing portion, is provided with a plurality of tooth-shaped grooves or a plurality of tooth-shaped protrusions, and the fixing portion is provided with a plurality of tooth-shaped protrusions or a plurality of tooth-shaped grooves which are matched with the plurality of tooth-shaped grooves or the plurality of tooth-shaped protrusions. The tooth-shaped groove is an inverted tooth-shaped groove, and the tooth-shaped protrusion is an inverted tooth-shaped protrusion matched with the tooth-shaped groove. The clamping structure 7 is firmly fastened on the outer wall of the groove structure of the contact finger 2 through the step-by-step fastening of the inverted tooth-shaped groove and the inverted tooth-shaped protrusion.
In order to further enable the clamping part and the outer wall of the groove structure to be clamped more firmly, a pawl-shaped rubber pad 6 is arranged at the tightly-jointed part of the clamping part and the outer wall of the groove structure so as to play a role in skid resistance and fastening.
In another embodiment, the fixing part and the outer wall contact part of the groove structure, the fixing part and the temperature detection device connecting part are all provided with heat dissipation silica gel. The heat transfer between the contact finger and the temperature detection device is facilitated, and the temperature of the isolating switch detected by the temperature detection device is more accurate; meanwhile, the fixing device can play a certain role in fixing.
In order to more accurately detect the temperature of the contact finger 2 and the contact 4, the temperature detection device is arranged on the outer wall of the groove structure corresponding to the contact part of the inner wall of the groove structure and the contact 4.
Further, the groove structure comprises two opposite side walls, and temperature detection devices are arranged on the two side walls. The contact finger 2 has elasticity, so that the phenomenon that one side is compressed and the other side is not compressed is avoided, and the temperatures of the two sides have larger deviation.
The temperature detection device in the above embodiments may be any device having a temperature detection function, such as an infrared temperature measurement device, a SAW temperature sensor, a wireless temperature sensor, a wired temperature sensor, and the like. In the present embodiment, the wireless temperature sensor 1 is selected as the temperature detection means. The wireless temperature sensor 1 can omit the wiring work and increase the sensor installation efficiency.
Further, as shown in fig. 3, the on-line monitoring system for the temperature of the high-voltage disconnecting switch further comprises a receiving processing device 9 and an upper computer 11, the wireless temperature sensor 1 is in wireless communication connection with the receiving processing device 9, and the receiving processing device 9 is connected with the upper computer 11 through a communication line 10. Specifically, the wireless temperature sensor 1 adopts a low-power-consumption design, a high-performance special battery is adopted to provide a working power supply for the module, the design life of the battery is longer than or equal to 9 years at normal temperature, and the frequent replacement of the battery of the temperature sensor is avoided. Precision: +1 ℃; temperature acquisition frequency: the measurement/transmission is performed every 20-180 s. The transmission distance between the wireless temperature sensor and the receiving module is as follows: less than or equal to 60 meters (wireless transmission); the temperature measuring range is as follows: -25 ℃ to 100 ℃. The receiving and processing device 9 selects the point-to-point visible distance as far as 1000 meters; transmission power range: -14-20 dBm; voltage stabilization inside the module, voltage input: 2.4V-5.5V; emission current 110mA, sleep current microampere. The working voltage of the upper computer 11: 12 VDC; serial port (data channel): 6-8 routes. The communication mode between the upper computer 11 and the receiving processing device 9 can select the following 2 modes of Ethernet TCP/IP or RS 485.
Furthermore, an alarm device (not shown in the figure) is further included, and the alarm device is in communication connection with the upper computer 11. When the upper computer receives that the internal temperature of the isolating switch sent by the receiving and processing device exceeds the upper limit, the upper computer 11 sends an alarm instruction to the alarm device to remind workers of the isolating switch that the isolating switch has problems and processes the problem as soon as possible.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and although the present invention has been disclosed with reference to the above preferred embodiment, but not to limit the present invention, any person skilled in the art can make some changes or modifications to equivalent embodiments without departing from the scope of the present invention, and any simple modification, equivalent change and modification made to the above embodiments by the technical spirit of the present invention still fall within the scope of the present invention.
Claims (10)
1. The utility model provides an online monitoring system of high voltage isolator temperature, high voltage isolator includes touches finger and contact, touch the finger and include the groove structure that can supply the contact to insert which characterized in that: the temperature detection device is connected and fixed on the outer wall of the groove structure through a clamping structure, the clamping structure comprises a clamping portion and a fixing portion, the clamping portion and the outer wall of the groove structure are clamped and fixed, and the fixing portion is fixedly connected with the temperature detection device.
2. The high-voltage isolator temperature on-line monitoring system of claim 1, wherein: the clamping part comprises a first clamping part and a second clamping part, one end of the first clamping part and one end of the second clamping part are clamped and fixed with the outer wall of the groove structure, and the other end of the first clamping part and the other end of the second clamping part are connected with the fixing part.
3. The high-voltage isolator temperature on-line monitoring system of claim 2, wherein: the fixing part is adjustably connected with the first clamping part, and the fixing part is adjustably connected with the second clamping part.
4. The high-voltage isolator temperature on-line monitoring system of claim 3, wherein: the fixing part is provided with a plurality of tooth-shaped grooves or a plurality of tooth-shaped bulges matched with the tooth-shaped grooves or the tooth-shaped bulges.
5. The high-voltage isolator temperature on-line monitoring system of claim 2, wherein: the clamping part and the outer wall of the groove structure are tightly attached to each other, and inverted tooth-shaped rubber pads are arranged at the positions where the clamping part and the outer wall of the groove structure are tightly attached to each other.
6. The high-voltage isolator temperature on-line monitoring system of claim 2, wherein: the fixing part and the outer wall contact part of the groove structure, the fixing part and the temperature detection device connecting part are all provided with heat dissipation silica gel.
7. The high-voltage isolator temperature on-line monitoring system of claim 1, wherein: the temperature detection device is arranged on the outer wall of the groove structure corresponding to the contact part of the inner wall of the groove structure and the contact.
8. The high-voltage isolator temperature on-line monitoring system of claim 7, wherein: the groove structure comprises two opposite side walls, and temperature detection devices are arranged on the two side walls.
9. The high-voltage isolator temperature on-line monitoring system of claim 1, wherein: the temperature detection device is in wireless communication connection with the receiving processing device, and the receiving processing device is in wired communication connection with the upper computer.
10. The high-voltage isolator temperature on-line monitoring system of claim 9, wherein: the alarm device is in communication connection with the upper computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920502469.3U CN209979082U (en) | 2019-04-12 | 2019-04-12 | High-voltage isolating switch temperature on-line monitoring system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920502469.3U CN209979082U (en) | 2019-04-12 | 2019-04-12 | High-voltage isolating switch temperature on-line monitoring system |
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| CN209979082U true CN209979082U (en) | 2020-01-21 |
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| CN201920502469.3U Expired - Fee Related CN209979082U (en) | 2019-04-12 | 2019-04-12 | High-voltage isolating switch temperature on-line monitoring system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112067981A (en) * | 2020-07-30 | 2020-12-11 | 大唐大丰风电开发有限公司 | Real-time monitoring system for isolating switch |
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2019
- 2019-04-12 CN CN201920502469.3U patent/CN209979082U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112067981A (en) * | 2020-07-30 | 2020-12-11 | 大唐大丰风电开发有限公司 | Real-time monitoring system for isolating switch |
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