CN204556765U - A kind of leakage current detect system - Google Patents
A kind of leakage current detect system Download PDFInfo
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- CN204556765U CN204556765U CN201520288497.1U CN201520288497U CN204556765U CN 204556765 U CN204556765 U CN 204556765U CN 201520288497 U CN201520288497 U CN 201520288497U CN 204556765 U CN204556765 U CN 204556765U
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- monitoring main
- mutual inductor
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- leakage current
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Abstract
The utility model provides a kind of leakage current detect system, comprising: the monitoring main frame that can connect host computer and the Zero flux detection of electrical leakage mutual inductor be arranged on consumer; Described Zero flux creepage mutual inductor is connected by universal serial bus with monitoring main frame; Described monitoring main frame can be electrically connected and/or wireless connections with host computer; Described monitoring main frame is provided with current detecting alert process device.Described Zero flux detection of electrical leakage mutual inductor is connected by universal serial bus with monitoring main frame, improve the sensitivity of mutual inductor, the current detecting alert process device that described monitoring main frame is arranged can be reported to the police according to leakage current deciding grade and level, judge leak current fault degree and determine when maintenance, described current detecting alert process device can indicate trip operation time and tripping operation setting valve simultaneously, prevent overstep tripping from causing large-area power-cuts, thus realize the monitoring of electric power system to electric leakage degree, and maintenance down indication information is provided, guarantee can not shut down the reliable electricity consumption of user as industrial and mining enterprises at any time.
Description
Technical field
The utility model relates to electric system leakage current detect technical field, more particularly, relates to a kind of leakage current detect system.
Background technology
Along with the develop rapidly of national economy, industrial and mining enterprises progressively increase, and because the consumer harm caused of leaking electricity frequently occurs, the reliability of leakage current detect system and accuracy become the basic guarantee of safety in production.
In existing leakage current detect system; leakage relay is set by tripping operation power-down mode more; the equipment breakdown preventing the earth-fault current when leaking electricity generation from causing or electrical fire; but; existing this kind of electric leakage treatment mechanism, for not shutting down user (as industrial and mining enterprises) at any time after leakage relay completes protection, causes the economic loss of shutting down and stopping production and causing.
Thus need the monitoring of leakage current detect system to electric leakage degree badly, and maintenance down indication information is provided, ensure to shut down the reliable electricity consumption of user as industrial and mining enterprises at any time.
Utility model content
In view of this, the utility model provides a kind of leakage current detect system, realizes the monitoring of electric power system to electric leakage degree, and provides maintenance down indication information, ensures to shut down the reliable electricity consumption of user as industrial and mining enterprises at any time.
A kind of leakage current detect system, comprising: the monitoring main frame that can connect host computer and the Zero flux detection of electrical leakage mutual inductor be arranged on consumer;
Described Zero flux creepage mutual inductor is connected by universal serial bus with monitoring main frame;
Described monitoring main frame can be electrically connected and/or wireless connections with described host computer;
Described monitoring main frame is provided with current detecting alert process device.
Preferably, described Zero flux creepage mutual inductor is equiped with minicrystal iron core.
Preferably, described universal serial bus is RS485 data bus.
Preferably, described monitoring main frame is provided with memory module.
As can be seen from above-mentioned technical scheme, Zero flux detection of electrical leakage mutual inductor in the utility model embodiment is connected by universal serial bus with monitoring main frame, improve the sensitivity of mutual inductor, the current detecting alert process device that described monitoring main frame is arranged can be reported to the police according to leakage current deciding grade and level, judge leak current fault degree and determine when maintenance, described current detecting alert process device can indicate trip operation time and tripping operation setting valve simultaneously, prevent overstep tripping from causing large-area power-cuts, thus realize the monitoring of electric power system to electric leakage degree, and maintenance down indication information is provided, guarantee can not shut down the reliable electricity consumption of user as industrial and mining enterprises at any time.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of leakage current detect system architecture schematic diagram disclosed in the utility model embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
The utility model embodiment discloses a kind of leakage current detect system, realizes the monitoring of electric power system to electric leakage degree, and provides maintenance down indication information, ensures to shut down the reliable electricity consumption of user as industrial and mining enterprises at any time.
Fig. 1 shows a kind of leakage current detect system, comprising:
Be arranged at the Zero flux detection of electrical leakage mutual inductor 1 on consumer;
And, the monitoring main frame 2 that can be connected with host computer 3;
Described Zero flux creepage mutual inductor 1 is connected by universal serial bus with monitoring main frame 2;
Described Zero flux creepage mutual inductor 1 is arranged on consumer to be detected, accurately can be located the position of consumer to be detected by described Zero flux creepage mutual inductor 1;
Described Zero flux creepage mutual inductor 1 is equiped with minicrystal iron core, and described minicrystal iron core possesses Zero flux operating characteristic, and has high initial magnetic permeability; There is very high Insertion Loss in the line, good frequency characteristic and temperature stability, and effectively suppress common-mode noise.Improve the sensitivity of mutual inductor.Described Zero flux creepage mutual inductor 1, by universal serial bus, leakage data will be delivered to described monitoring main frame 2.
Described monitoring main frame 2 can arrange the electric leakage information that display unit shows Zero flux creepage mutual inductor described in certain, and forms real-time change trend curve, contributes to maintainer and accurately judges system insulation situation and scheduled overhaul.
Described monitoring main frame 2 can be electrically connected and/or wireless connections with described host computer 3;
Described monitoring main frame 2, by ICP/IP protocol and described host computer 3 exchanges data, realizes communication networking.Described host computer 3 shows electric leakage data in real time and can transfer Historical Alerts data, realizes Distant supervision and control.
Described monitoring main frame 2 is provided with current detecting alert process device;
Described monitoring main frame 2 is according to described current detecting alert process device, current detecting alert process device can comprise collecting unit and microprocessor, but be not limited to above-mentioned formation, described current detecting alert process device gathers the leakage current value of described Zero flux creepage mutual inductor 1, and carry out alarm, be divided into 80mA, 150mA, 300mA, 500mA according to leakage current value.Described monitoring main frame 2 detects when leakage current value exceedes certain alarm definite value and gives the alarm, and adjusts to next stage definite value after automatic time delay; Time length according to alarm interval judges leak current fault rank, to point out service information; Also can set corresponding trip operation time and tripping operation setting valve according to field working conditions simultaneously, cause to prevent overstep tripping and can not shut down user's large-area power-cuts at any time.
Described monitoring host computer 2 and described Zero flux creepage mutual inductor 1 adopt RS485 data bus transmission, can monitor at most 128 circuits, anti-interference, and cost is low, easy for installation.
Preferably, described monitoring main frame 2 is provided with memory module.
Described monitoring main frame 2 can utilize described memory module to report to the police and to trip and record file automatically, and supports that inquiry and host computer 3 are inquired about and printed, and provides reference data for maintainer formulates turnaround plan.
It should be noted that, leakage current detect system is applicable to the comparatively intensive community of consumer, and for not shutting down user at any time, as: industries such as mine, coal, chemical industry, iron and steel, weaving and the main line of large scale business electric power system, the leakage current detect alarm of branch line head end; Low-voltage, high-current system power supply tail end line insulation degradation monitoring alarm, the alarm of motor shorted-turn fault; The electric electric leakage classification alarm of low pressure small current system; Single-phase grounding selecting warning etc.
But, be not limited to and above-mentionedly enumerate range of application.
In sum;
Zero flux detection of electrical leakage mutual inductor in the utility model embodiment is connected by universal serial bus with monitoring main frame, improve the sensitivity of mutual inductor, the current detecting alert process device that described monitoring main frame is arranged can be reported to the police according to leakage current deciding grade and level, judge leak current fault degree and determine when maintenance, described current detecting alert process device can indicate trip operation time and tripping operation setting valve simultaneously, prevent overstep tripping from causing large-area power-cuts, thus realize the monitoring of electric power system to electric leakage degree, and maintenance down indication information is provided, guarantee can not shut down the reliable electricity consumption of user as industrial and mining enterprises at any time.
In this instructions, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (4)
1. a leakage current detect system, is characterized in that, comprising: the monitoring main frame that can connect host computer and the Zero flux detection of electrical leakage mutual inductor be arranged on consumer;
Described Zero flux creepage mutual inductor is connected by universal serial bus with monitoring main frame;
Described monitoring main frame can be electrically connected and/or wireless connections with described host computer;
Described monitoring main frame is provided with current detecting alert process device.
2. leakage current detect system as claimed in claim 1, it is characterized in that, described Zero flux creepage mutual inductor is equiped with minicrystal iron core.
3. leakage current detect system as claimed in claim 1, it is characterized in that, described universal serial bus is RS485 data bus.
4. leakage current detect system as claimed in claim 1, it is characterized in that, described monitoring main frame is provided with memory module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520288497.1U CN204556765U (en) | 2015-05-07 | 2015-05-07 | A kind of leakage current detect system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520288497.1U CN204556765U (en) | 2015-05-07 | 2015-05-07 | A kind of leakage current detect system |
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| CN204556765U true CN204556765U (en) | 2015-08-12 |
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| CN201520288497.1U Active CN204556765U (en) | 2015-05-07 | 2015-05-07 | A kind of leakage current detect system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106406211A (en) * | 2016-08-24 | 2017-02-15 | 森赫电梯股份有限公司 | Intelligent detection apparatus for pre-fabricated cable |
| CN106443293A (en) * | 2016-08-15 | 2017-02-22 | 国家电网公司 | Direct current ground fault online detection and alarm device |
-
2015
- 2015-05-07 CN CN201520288497.1U patent/CN204556765U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106443293A (en) * | 2016-08-15 | 2017-02-22 | 国家电网公司 | Direct current ground fault online detection and alarm device |
| CN106406211A (en) * | 2016-08-24 | 2017-02-15 | 森赫电梯股份有限公司 | Intelligent detection apparatus for pre-fabricated cable |
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