CN203274957U - Package type wireless temperature measuring device for medium voltage circuit breaker - Google Patents
Package type wireless temperature measuring device for medium voltage circuit breaker Download PDFInfo
- Publication number
- CN203274957U CN203274957U CN201320229272.XU CN201320229272U CN203274957U CN 203274957 U CN203274957 U CN 203274957U CN 201320229272 U CN201320229272 U CN 201320229272U CN 203274957 U CN203274957 U CN 203274957U
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- temperature measuring
- measuring device
- wireless temperature
- medium voltage
- circuit board
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Abstract
The utility model provides a package type wireless temperature measuring device for a medium voltage circuit breaker. The package type wireless temperature measuring device comprises a circuit breaker operation module (11), a terminal (12), a primary circuit touch arm (13) and a primary circuit contact (15) which are sequentially connected with the terminal (12), wherein a wireless temperature measuring module (14) is mounted on the outer surface of the primary circuit touch arm and composed of a control circuit board (143) embedded into an insulation cover (141), a self-powered CT (142) and a temperature sensor (139) connected with the control circuit board. When the circuit breaker operates normally, the temperature of the primary circuit contact is accurately measured at the real time by the wireless temperature measuring touch arm module and subjected to signal treatment by the control circuit board, and then the temperature signal is sent to a controller in a switch device and a control main machine in a transformer substation in a wireless 3G way. The temperature data is analyzed and calculated to provide the inspection protection function to the switch device.
Description
Technical field
The utility model belongs to the power product technical field, is specifically related to a kind of wireless temperature measuring device that is applied to middle pressure intelligent breaker, with real-time Measurement accuracy one-time contact place temperature, thereby further protection is provided for isolating switch and switchgear.
Background technology
According to statistics, in the failure accident that medium voltage switchgear equipment occurs, nearly 60% is the primary circuit loose contact that causes due to a variety of causes, thereby cause that contact local temperature rise exceeds standard, and then causing the accidents such as contact of breaker scaling loss and switch cubicle blast, serious threat is to switchgear and operating personnel's safety.Therefore the designer competitively develops the switchgear contact temperature online monitoring device both at home and abroad.Be below two kinds of typical design proposals.
Scheme one: as shown in Figure 1A, wireless temperature measuring device 92,93 is and is poured with epoxy resin spare, the pouring piece internal integration wireless temperature measure each functional unit (power supply/control circuit board/sensor), wireless temperature measuring device 92,93 all is enclosed within on primary circuit contact arm 91, and is separately fixed on isolating switch shrouding 95 and isolating switch cabinet 96.This design proposal reliability is higher, can realize in serviceable life non-maintaining, but complex structure, cost is higher, and installation and removal trouble comparatively.
Scheme two: as shown in Figure 1B, wireless temperature measuring device comprises respectively temperature-sensitive module 84, control circuit board 85 and power supply CT86, and wireless temperature measuring device all is enclosed within on primary circuit contact arm 82, and is fixed on contact arm 82 by band 83 respectively.This design proposal structure is comparatively simple, and the parts cost is lower, but exists insulation distance too small, very easily causes failure of insulation, the risk of the major accidents such as isolating switch phase fault.
The utility model content
An aspect of the present utility model provides a kind of medium voltage breaker packaged type wireless temperature measuring device, and it comprises insulating boot, self-powered current transformer, control circuit board and temperature sensor with die cavity; Self-powered current transformer and control circuit board embed in insulating boot, and temperature sensor is connected with control circuit board, and is fixed on the primary circuit contact arm of medium voltage breaker.
According to most preferred embodiment of the present utility model, self-powered current transformer and control circuit board are embedded in respectively in the die cavity of insulating boot, and by silica gel packaging.
According to most preferred embodiment of the present utility model, temperature sensor comprises sensing head and sensor lead; Sensing head is fixed in unit clamp one end, and sensor lead is fixed in the other end of unit clamp.Unit clamp adopts the beryllium copper fixture.
On the other hand of the present utility model, provide a kind of medium voltage breaker to comprise operational module, be fixed in the pole on operational module, and the primary circuit contact arm that is connected with pole successively and primary circuit contact, it is characterized in that: also comprise any wireless temperature measuring device as above, it is fixed on the contact arm of primary circuit.
Wireless temperature measuring device of the present utility model is in conjunction with the generally design of existing medium voltage breaker, and wireless temperature is measured each Module-embedding in the contact arm of isolating switch primary circuit, and simple in structure, cost is low, and insulation is reliable.
Description of drawings
Figure 1A-1B is existing medium voltage breaker wireless temperature measuring device schematic diagram, and Figure 1A and 1B are respectively existing two kinds of different schemes;
Fig. 2 is the scheme of installation of temperature measurement module of the present utility model in medium voltage breaker;
Fig. 3 is the scheme of installation of temperature measurement module of the present utility model and primary circuit contact arm and contact;
Fig. 4 is the section of structure of temperature measurement module of the present utility model;
Fig. 5 is the fixed structure chart of temperature sensor of the present utility model.
Embodiment
Below with reference to accompanying drawing, the specific descriptions of optional embodiment of the present utility model have been provided.
The scheme of installation of wireless temperature measuring device of the present utility model shown in Fig. 2-5 in medium voltage breaker, shown in Figure 2, medium voltage breaker comprises operational module 11, be fixed in the pole 12 on operational module, and the primary circuit contact arm 13 that is connected with pole 12 successively and primary circuit contact 15, wireless temperature measuring device 14 is enclosed within primary circuit contact arm 13 outside surfaces.
As shown in Figure 3, wireless temperature measuring device 14 of the present utility model comprises the plastic insulation cover 141 with die cavity, embeds self-powered current transformer (CT) 142 and the control circuit board 143 of plastic insulation cover 141.Temperature sensor 144 is connected with control circuit board 143, and is fixed on the primary circuit contact arm 13 of medium voltage breaker.
As shown in Figure 4, in this wireless temperature measuring device 14, self-powered current transformer 142 and control circuit board 143 embed respectively in the die cavity of plastic insulation cover 141, and by the encapsulation such as silica gel (prestige inspires confidence in PU390) to guarantee safety and reliability.
As shown in Figure 5, sensing head 1441 in temperature sensor 144 is fixed in unit clamp 1,442 one ends, simultaneously sensor lead 1443 is riveted on the other end of unit clamp 1442, and unit clamp 1442 starting material are beryllium copper QBe, guarantees good flexible fastening and to the anti-interference of sensor signal.Due to the insulation shielding effect of insulating boot, effectively guaranteed the insulating property of each high voltage parts, and the design and installation of modular package is extremely convenient; When each temperature element self-powered current transformer 142, control circuit board 143 and temperature sensor 144 break down, only need pull down primary circuit contact arm 13 simultaneously, again put wireless temperature measuring device 14 and get final product.
Wireless temperature measuring device of the present utility model is in conjunction with the generally design of existing medium voltage breaker, and wireless temperature is measured each Module-embedding in the contact arm of isolating switch primary circuit, has simple in structurely, with low cost, and the characteristics such as insulate reliable.
Although disclose for the purpose of illustration preferred embodiment of the present utility model and accompanying drawing, the person skilled in the art in the spirit and scope that do not break away from the utility model and appended claim, can do various replacements, variation and retouching.Therefore, the utility model should not be limited to preferred embodiment and the disclosed content of accompanying drawing, and protection domain of the present utility model is as the criterion with the scope that appending claims was defined.
Claims (5)
1. a medium voltage breaker packaged type wireless temperature measuring device, comprise insulating boot (141), self-powered current transformer (142), control circuit board (143) and temperature sensor (144) with die cavity; Self-powered current transformer (142) and control circuit board (143) embed in insulating boot (141), and temperature sensor (144) is connected with control circuit board (143), and is fixed on the primary circuit contact arm (13) of medium voltage breaker.
2. medium voltage breaker according to claim 1 packaged type wireless temperature measuring device, it is characterized in that: self-powered current transformer (142) and control circuit board (143) are embedded in respectively in the die cavity of insulating boot (141), and by silica gel packaging.
3. medium voltage breaker according to claim 1 and 2 packaged type wireless temperature measuring device, it is characterized in that: temperature sensor (144) comprises sensing head (1441) and sensor lead (1443); Sensing head (1441) is fixed in unit clamp (1442) one ends, and sensor lead (1443) is fixed in the other end of unit clamp (1442).
4. medium voltage breaker according to claim 3 packaged type wireless temperature measuring device, it is characterized in that: unit clamp (1442) is the beryllium copper fixture.
5. a medium voltage breaker comprises operational module (11), is fixed in the pole (12) on operational module, and the primary circuit contact arm (13) and the primary circuit contact (15 that are connected with pole (12) successively; Comprise that also it is fixed on primary circuit contact arm (13) as the described wireless temperature measuring device of claim 1-4 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320229272.XU CN203274957U (en) | 2013-04-28 | 2013-04-28 | Package type wireless temperature measuring device for medium voltage circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320229272.XU CN203274957U (en) | 2013-04-28 | 2013-04-28 | Package type wireless temperature measuring device for medium voltage circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203274957U true CN203274957U (en) | 2013-11-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320229272.XU Expired - Lifetime CN203274957U (en) | 2013-04-28 | 2013-04-28 | Package type wireless temperature measuring device for medium voltage circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203274957U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108663140A (en) * | 2018-06-26 | 2018-10-16 | 上海良信电器股份有限公司 | Breaker temperature harvester mounting structure |
| WO2022211235A1 (en) * | 2021-03-31 | 2022-10-06 | 엘에스일렉트릭 (주) | Vacuum circuit breaker |
-
2013
- 2013-04-28 CN CN201320229272.XU patent/CN203274957U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108663140A (en) * | 2018-06-26 | 2018-10-16 | 上海良信电器股份有限公司 | Breaker temperature harvester mounting structure |
| WO2022211235A1 (en) * | 2021-03-31 | 2022-10-06 | 엘에스일렉트릭 (주) | Vacuum circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180608 Address after: Baden, Switzerland Patentee after: ABB Switzerland Co.,Ltd. Address before: Zurich Patentee before: ABB TECHNOLOGY Ltd. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131106 |
|
| CX01 | Expiry of patent term |