CN205211582U - Intelligence current transformer for circuit breaker - Google Patents
Intelligence current transformer for circuit breaker Download PDFInfo
- Publication number
- CN205211582U CN205211582U CN201520834685.XU CN201520834685U CN205211582U CN 205211582 U CN205211582 U CN 205211582U CN 201520834685 U CN201520834685 U CN 201520834685U CN 205211582 U CN205211582 U CN 205211582U
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- China
- Prior art keywords
- box
- current transformer
- hole
- intelligent breaker
- insulating barrier
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- Expired - Fee Related
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- Transformers For Measuring Instruments (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
The utility model discloses an intelligence current transformer for circuit breaker, including protecting the box, offered the through -hole at this center of protecting the box, be fixed with multiunit cable fastener on the lateral wall of this through -hole the through -hole outside protect the built -in secondary coil subassembly that is equipped with of box, the output of secondary coil subassembly is used for respectively being connected with the current signal sense terminal of intelligent circuit breaker, contact temperature on -line monitoring device's start -up current input still be fixed with the secondary lead -out wire on protecting the outer wall of box, this secondary lead -out wire with the secondary winding electricity is connected. It is showing the effect: simple structure easily realizes, when not only can provide the current signal of circuit change for intelligent circuit breaker, can also provide the pick -up current for contact temperature on -line monitoring device, and the saturation point is low, can protect the safety of on -line measuring device and circuit breaker.
Description
Technical field
The utility model relates to current transformer technical field, specifically, is a kind of intelligent breaker Current Transformer.
Background technology
The intellectuality of circuit breaker is the work updated, and it relates to the technical progress and innovation development in a lot of field, needs more input and exploitation.But along with the development of intelligent power network, the intelligent breaker of superior performance can replace traditional circuit breaker at last, and be familiar with by people and like.
Intelligent breaker basic working modes is the different faults electric current according to monitoring, the condition of work that automatic selection operating mechanism and arc control device preset, with comparatively low velocity separating brake time as less in normal operating current, separating brake at a relatively high speed when system short-circuit electric current is larger, to obtain the best separating brake effect electrically and in mechanical performance.
In the prior art, the power taking problem of intelligent breaker is that can it stablize a large bottleneck of work of can arriving always, such as utilizes device of solar generating power taking, there is a lot of drawback.In enforcement and application or investment is large, or wiring is complicated and unreliable, also likely by the impact of the extraneous factors such as environment position, weather and payload.
Utility model content
For the deficiencies in the prior art; the purpose of this utility model is to provide a kind of intelligent breaker Current Transformer; while the current signal that this current transformer can provide circuit to change for intelligent breaker; starting current can also be provided for contact temperature online monitoring device; saturation point is low, can protect the safety of on-line measuring device and circuit breaker.
For achieving the above object, the technical solution adopted in the utility model is as follows:
A kind of intelligent breaker Current Transformer, its key is: comprise and protect box, the center protecting box at this offers through hole, the sidewall of this through hole is fixed with many group cable fasteners, protecting in box outside described through hole is equiped with secondary coil assembly, this secondary coil assembly comprises a circular iron core, this iron core is covered with the first insulating barrier, this first insulating barrier is wound with secondary winding, described secondary winding is also covered with the second insulating barrier, the output of described secondary coil assembly is respectively used to the current signal test side with intelligent breaker, the starting current input of contact temperature online monitoring device connects, the described outer wall protecting box is also fixed with secondary lead-out wire, this secondary lead-out wire is electrically connected with described secondary winding.
This current transformer structure is simple; big current can be become small area analysis by a certain percentage; by electrical secondary system and high-voltage isolating; while the current signal that circuit can not only be provided to change for intelligent breaker; starting current can also be provided for contact temperature online monitoring device; saturation point is low, can protect the safety of on-line measuring device and circuit breaker.
Further, described in protect the overall cylindrical structure of box, on the outer wall that this protects box, hoop is provided with anchor ear, and the two ends of this anchor ear are bolted fixing.
Further, be connected with plug connector at the free end of described secondary lead-out wire, this plug connector is for connecting external load.
Further, described first insulating barrier is consistent with the second insulation layer structure, and forms by crimped paper and PVC tape.
Further, described cable fastener is three groups, and three groups of cable fasteners are evenly distributed on the sidewall of described through hole.
By above-mentioned cable fastener, can the be stable electric current in cable be adopted, thus can be continual and steady provide power supply to microcomputer protecting device.
Remarkable result of the present utility model is: structure is simple; be easy to realize; big current can be become small area analysis by a certain percentage; by electrical secondary system and high-voltage isolating; while the current signal that circuit can not only be provided to change for intelligent breaker; can also provide starting current for contact temperature online monitoring device, saturation point is low, can protect the safety of on-line measuring device and circuit breaker.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the structural representation of described secondary coil assembly;
Fig. 4 is the sectional drawing of Fig. 3;
Fig. 5 is the direction of winding schematic diagram of described secondary winding.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model and operation principle are described in further detail.
As shown in Fig. 1 ~ Fig. 5, a kind of intelligent breaker Current Transformer, comprise and protect box 1, describedly protect the overall cylindrical structure of box 1, through hole 2 is offered at the center that this protects box 1, the sidewall of this through hole 2 is fixed with many group cable fasteners 3, protecting in box 1 outside described through hole 2 is equiped with secondary coil assembly 4, this secondary coil assembly 4 comprises a circular iron core 41, this iron core 41 is covered with the first insulating barrier 42, this first insulating barrier 42 is wound with secondary winding 43, described secondary winding 43 is also covered with the second insulating barrier 44, the output of described secondary coil assembly 4 is respectively used to the current signal test side with intelligent breaker, the starting current input of contact temperature online monitoring device connects, the described outer wall protecting box 1 is also fixed with secondary lead-out wire 5, this secondary lead-out wire 5 is electrically connected with described secondary winding 43, plug connector 8 is connected with at the free end of described secondary lead-out wire 5, this plug connector 8 is for connecting external load, on the outer wall that this protects box 1, hoop is provided with anchor ear 6, the two ends of this anchor ear 6 are connected and fixed by bolt 7.
See accompanying drawing 5, the direction of winding of described secondary winding 43 is counterclockwise.
In this example, described first insulating barrier 42 is consistent with the second insulating barrier 44 structure, and forms by crimped paper and PVC tape.
In this example, as preferably, described cable fastener 3 is three groups, and three groups of cable fasteners 3 are evenly distributed on the sidewall of described through hole 2.
First big current can be become small area analysis by head store Liu instrument transformer by a certain percentage; by electrical secondary system and high-voltage isolating; while the current signal that then circuit can be provided to change for intelligent breaker; finally can also provide starting current for contact temperature online monitoring device; CT saturation point is low, can protect the safety of on-line measuring device and circuit breaker.
Claims (5)
1. an intelligent breaker Current Transformer, it is characterized in that: comprise and protect box (1), through hole (2) is offered at the center that this protects box (1), the sidewall of this through hole (2) is fixed with many groups cable fastener (3), secondary coil assembly (4) is equiped with protecting in box (1) of described through hole (2) outside, this secondary coil assembly (4) comprises a circular iron core (41), this iron core (41) is covered with the first insulating barrier (42), this first insulating barrier (42) is wound with secondary winding (43), described secondary winding (43) is also covered with the second insulating barrier (44), the output of described secondary coil assembly (4) is respectively used to the current signal test side with intelligent breaker, the starting current input of contact temperature online monitoring device connects, the described outer wall protecting box (1) is also fixed with secondary lead-out wire (5), this secondary lead-out wire (5) is electrically connected with described secondary winding (43).
2. intelligent breaker Current Transformer according to claim 1, it is characterized in that: described in protect the overall cylindrical structure of box (1), on the outer wall that this protects box (1), hoop is provided with anchor ear (6), and the two ends of this anchor ear (6) are connected and fixed by bolt (7).
3. intelligent breaker Current Transformer according to claim 1, is characterized in that: be connected with plug connector (8) at the free end of described secondary lead-out wire (5), this plug connector (8) is for connecting external load.
4. intelligent breaker Current Transformer according to claim 1, is characterized in that: described first insulating barrier (42) is consistent with the second insulating barrier (44) structure, and forms by crimped paper and PVC tape.
5. intelligent breaker Current Transformer according to claim 1, is characterized in that: described cable fastener (3) is three groups, and three groups of cable fasteners (3) are evenly distributed on the sidewall of described through hole (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520834685.XU CN205211582U (en) | 2015-10-26 | 2015-10-26 | Intelligence current transformer for circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520834685.XU CN205211582U (en) | 2015-10-26 | 2015-10-26 | Intelligence current transformer for circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205211582U true CN205211582U (en) | 2016-05-04 |
Family
ID=55849282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520834685.XU Expired - Fee Related CN205211582U (en) | 2015-10-26 | 2015-10-26 | Intelligence current transformer for circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205211582U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110118884A (en) * | 2019-05-18 | 2019-08-13 | 南京觅丹电子信息有限公司 | A kind of phase three-wire three intelligent breaker |
| CN111157941A (en) * | 2020-01-19 | 2020-05-15 | 广东电网有限责任公司计量中心 | Device and method for quickly switching and checking primary winding of power transformer |
| CN112881777A (en) * | 2021-01-19 | 2021-06-01 | 西南交通大学 | Zigzag open-close type small current sensor |
-
2015
- 2015-10-26 CN CN201520834685.XU patent/CN205211582U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110118884A (en) * | 2019-05-18 | 2019-08-13 | 南京觅丹电子信息有限公司 | A kind of phase three-wire three intelligent breaker |
| CN111157941A (en) * | 2020-01-19 | 2020-05-15 | 广东电网有限责任公司计量中心 | Device and method for quickly switching and checking primary winding of power transformer |
| CN112881777A (en) * | 2021-01-19 | 2021-06-01 | 西南交通大学 | Zigzag open-close type small current sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 213100 No. 502, Changting Road, Wujin Economic Development Zone, Jiangsu, Changzhou Patentee after: Changzhou Orient Electric Co., Ltd. Address before: 213100 No. 502, Changting Road, Wujin Economic Development Zone, Jiangsu, Changzhou Patentee before: ORIENT ELECTRIC CO., LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160504 Termination date: 20171026 |