CN203405292U - Embedded-type wireless temperature-measuring device for medium-voltage circuit breaker and corresponding medium-voltage circuit breaker - Google Patents
Embedded-type wireless temperature-measuring device for medium-voltage circuit breaker and corresponding medium-voltage circuit breaker Download PDFInfo
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- CN203405292U CN203405292U CN201320228359.5U CN201320228359U CN203405292U CN 203405292 U CN203405292 U CN 203405292U CN 201320228359 U CN201320228359 U CN 201320228359U CN 203405292 U CN203405292 U CN 203405292U
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- circuit breaker
- measuring device
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Abstract
The utility model discloses an embedded-type wireless temperature-measuring device for a medium-voltage circuit breaker and the corresponding medium-voltage circuit breaker. The medium-voltage circuit breaker comprises a circuit breaker operating module (11), a post terminal (12), an embedded-type wireless temperature-measuring device (13), and a primary loop contact (14), wherein the embedded-type wireless temperature-measuring device (13) and the primary loop contact (14) are sequentially connected with the post terminal (12). The embedded-type wireless temperature-measuring device comprises a control circuit board (134) embedded into a primary contact arm body (132), a self-powered CT (136), and a temperature sensor (139). The embedded-type wireless temperature-measuring device can measure the temperature of the primary loop contact (14) accurately in real time during the normal operation of the circuit breaker, and transmits the temperature signal in a wireless 3G manner to an inner controller of switching equipment after the signal processing of the control circuit board (134). A host is controlled inside a transformer station. A function of tour protection is provided for the switching equipment through the analysis and calculation of temperature data.
Description
Technical field
The utility model belongs to 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 to isolating switch and switchgear.
Background technology
According to statistics, in the failure accident occurring at medium voltage switchgear equipment, nearly 60% is the primary circuit loose contact causing 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 designer competitively develops 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 as poured with epoxy resin part, pouring piece internal integration wireless temperature measure each functional unit (power supply/control circuit board/sensor), wireless temperature measuring device 92,93 is all 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, in serviceable life, can realize 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 is all 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 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.
Utility model content
An aspect of the present utility model, provides a kind of medium voltage breaker embedded radio temperature measuring equipment, comprises contact arm body, insulation booth, self-powered current transformer and temperature sensor one time; Also comprise the insulating boot and the heat-shrinkable T bush that are wrapped in this external surface of contact arm; Described insulation booth, self-powered current transformer and temperature sensor are embedded in a contact arm body; In insulation booth, be packaged with control circuit board.
According to most preferred embodiment of the present utility model, described wireless temperature measuring device also comprises silicone rubber sleeve, for providing protective effect to self-powered current transformer.
According to most preferred embodiment of the present utility model, temperature sensor comprises sensing head and sensor lead; Sensing head is fixed on unit clamp one end, and sensor lead is fixed on the other end of unit clamp.Shown in unit clamp be 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 on the pole on operational module, and the primary circuit contact arm being connected with pole successively and primary circuit contact; Described medium voltage breaker also comprises the wireless temperature measuring device as described in front any one, and it is fixed on the contact arm of primary circuit.
Wireless temperature measuring device of the present utility model, in conjunction with the generally design of existing medium voltage breaker, is measured each Module-embedding in the contact arm of isolating switch primary circuit by wireless temperature, and simple in structure, cost is low, and insulation is reliable.
Accompanying drawing explanation
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 embedded radio temperature measuring equipment of the present utility model in medium voltage breaker;
Fig. 3 is embedded radio temperature measuring equipment section of structure of the present utility model;
Fig. 4 is embedded radio temperature measuring equipment fixed structure chart of the present utility model;
Fig. 5 is embedded radio temperature measuring equipment secondary expanded application structural drawing 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.
Be the scheme of installation of wireless temperature measuring device of the present utility model in medium voltage breaker as in Figure 2-4.
Figure 2 shows that medium voltage breaker comprises operational module 11, be fixed on the pole 12 on operational module, and the embedded radio temperature measuring equipment 13 being connected with pole 12 successively and primary circuit contact 14.
As shown in Figure 3; medium voltage breaker of the present utility model comprises contact arm body 132 one time with embedded radio temperature measuring equipment 13; be wrapped in insulating boot 131, insulating boot 138 and the heat-shrinkable T bush 133 of contact arm body 132 outside surfaces; and the insulation booth (conventionally adopting as plastics) 135 that embeds a contact arm body 132; self-powered current transformer (CT) 136 and temperature sensor 139; control circuit board 134 is packaged in insulation booth 135 (plastic material is as PA6), and 137 couples of self-powered CT136 of silicone rubber sleeve provide protective effect simultaneously.Temperature sensor 139 can be measured the real time temperature of primary circuit contact 14.
As shown in Figure 4, sensing head 1391 in temperature sensor 139 is fixed on unit clamp 1392 one end, the other end of sensor lead 1393 riveted joints simultaneously and unit clamp 1392, unit clamp 1392 starting material are beryllium copper QBe, guarantee good flexible fastening and the anti-interference to sensor signal.Insulation shielding effect due to insulating boot 131, insulating boot 138 and heat-shrinkable T bush 133, the insulating property of each high voltage parts have effectively been guaranteed, simultaneously when each temperature element self-powered current transformer 136, temperature sensor 139, control circuit board 134 break down, only need cut open heat-shrinkable T bush 133, implant new temperature element, again wrap up again thermoplastic sleeve pipe 133, simple to operation, with low cost.The utility model can expand to the design of different current specification, a corresponding different external diameter of contact arm body 132.The utility model also can expand to more multi-design methods by secondary, with the different demands of meeting spatial and position.
As shown in Figure 5, insulation booth (plastic casing) 135 can be made the strip of large-size, the lead-in wire of control circuit board 134 and temperature sensor 139 can be encapsulated wherein completely, the reliability of connection and the anti-interference of sensor signal have been guaranteed, contact arm body 132 is easy to processing, the same example of other assembly structures simultaneously.
Although disclose for the purpose of illustration preferred embodiment of the present utility model and accompanying drawing, person skilled in the art, within not departing from the spirit and scope of 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 embedded radio temperature measuring equipment, comprises a contact arm body (132), insulation booth (135), self-powered current transformer (136) and temperature sensor (139); Also comprise the insulating boot (131,138) and the heat-shrinkable T bush (133) that are wrapped in a contact arm body (132) outside surface; Described insulation booth (135), self-powered current transformer (136) and temperature sensor (139) are embedded in a contact arm body (132); In insulation booth (135), be packaged with control circuit board (134).
2. medium voltage breaker according to claim 1 embedded radio temperature measuring equipment, is characterized in that: also comprise silicone rubber sleeve (137), for providing protective effect to self-powered current transformer (136).
3. medium voltage breaker according to claim 1 and 2 embedded radio temperature measuring equipment, is characterized in that: temperature sensor (139) comprises sensing head (1391) and sensor lead (1393); Sensing head (1391) is fixed on unit clamp (1392) one end, and sensor lead (1393) is fixed on the other end of unit clamp (1392).
4. medium voltage breaker according to claim 3 embedded radio temperature measuring equipment, is characterized in that: unit clamp (1392) is beryllium copper fixture.
5. a medium voltage breaker, comprise operational module (11), be fixed on the pole (12) on operational module, and the primary circuit contact arm (13) being connected with pole (12) successively and primary circuit contact (15), it is characterized in that: also comprise the wireless temperature measuring device as described in claim 1-4 any one, it is fixed on primary circuit contact arm (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320228359.5U CN203405292U (en) | 2013-04-28 | 2013-04-28 | Embedded-type wireless temperature-measuring device for medium-voltage circuit breaker and corresponding medium-voltage circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320228359.5U CN203405292U (en) | 2013-04-28 | 2013-04-28 | Embedded-type wireless temperature-measuring device for medium-voltage circuit breaker and corresponding medium-voltage circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203405292U true CN203405292U (en) | 2014-01-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320228359.5U Expired - Lifetime CN203405292U (en) | 2013-04-28 | 2013-04-28 | Embedded-type wireless temperature-measuring device for medium-voltage circuit breaker and corresponding medium-voltage circuit breaker |
Country Status (1)
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| CN (1) | CN203405292U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105895459A (en) * | 2014-12-23 | 2016-08-24 | 常州帕斯菲克自动化技术股份有限公司 | Intelligent contact arm for circuit breaker |
| CN107946126A (en) * | 2017-12-20 | 2018-04-20 | 保定浪拜迪电气股份有限公司 | Scissor static contact isolation switch with temp sensing function |
| WO2021003719A1 (en) | 2019-07-10 | 2021-01-14 | Abb Schweiz Ag | Sensing apparatus and sensing method |
| WO2023010456A1 (en) * | 2021-08-05 | 2023-02-09 | Abb Schweiz Ag | Temperature sensing device and switchgear |
-
2013
- 2013-04-28 CN CN201320228359.5U patent/CN203405292U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105895459A (en) * | 2014-12-23 | 2016-08-24 | 常州帕斯菲克自动化技术股份有限公司 | Intelligent contact arm for circuit breaker |
| CN105895459B (en) * | 2014-12-23 | 2018-09-18 | 常州帕斯菲克自动化技术股份有限公司 | The intelligent contact arm of breaker |
| CN107946126A (en) * | 2017-12-20 | 2018-04-20 | 保定浪拜迪电气股份有限公司 | Scissor static contact isolation switch with temp sensing function |
| CN107946126B (en) * | 2017-12-20 | 2020-08-07 | 保定浪拜迪电气股份有限公司 | Scissor type isolating switch static contact with temperature measuring function |
| WO2021003719A1 (en) | 2019-07-10 | 2021-01-14 | Abb Schweiz Ag | Sensing apparatus and sensing method |
| WO2023010456A1 (en) * | 2021-08-05 | 2023-02-09 | Abb Schweiz Ag | Temperature sensing device and switchgear |
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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: 20180601 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: 20140122 |
|
| CX01 | Expiry of patent term |