CN206195341U - Intelligent colliery direct current overhead line earthleakage protective equipment - Google Patents
Intelligent colliery direct current overhead line earthleakage protective equipment Download PDFInfo
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- CN206195341U CN206195341U CN201621172140.8U CN201621172140U CN206195341U CN 206195341 U CN206195341 U CN 206195341U CN 201621172140 U CN201621172140 U CN 201621172140U CN 206195341 U CN206195341 U CN 206195341U
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- protective device
- earth leakage
- leakage protective
- device body
- protective equipment
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Abstract
The utility model discloses an intelligent colliery direct current overhead line earthleakage protective equipment, including the earthleakage protective equipment body, the stationary blade is installed all around to the earthleakage protective equipment body, earthleakage protective equipment body internally mounted has singlechip and internal circuit, the output of earthleakage protective equipment body and three -phase alternating contactor's input electric connection, three -phase alternating contactor and monitoring circuit series connection, observation circuit and earthleakage protective equipment body are parallelly connected, the output of earthleakage protective equipment body and the input electric connection of observation circuit, observation circuit and current transformer establish ties, observation circuit and voltage transformer are parallelly connected, current transformer and voltage transformer's the output and the input electric connection of earthleakage protective equipment body. The utility model discloses a what the singlechip adopted is the stm32 singlechip, and high performance, low cost, low -power consumption have improved the degree of accuracy and the precision of control, have increased the intelligent of system.
Description
Technical field
The utility model is related to earth leakage protective device technical field, and specially a kind of intelligent colliery DC electric electric leakage is protected
Protection unit.
Background technology
At present, DC trolley locomotive at home and abroad has as the important means of transport of underground coal mine in most of collieries
It is widely applied.But due to underground coal mine narrow space, DC electric is general in 2 m or so away from ground level, and stringing with
Ground is power cathode, therefore personnel's electric shock easily occurs.Additionally, the electric arc that electric leakage is produced is also possible to cause gas or coal dust quick-fried
The major accident such as fried；Excessive leakage current also can result in insulating materials heating or cause phase fault to cause fire.Therefore
Research coal mine under wall direct current overhead wire earth leakage protective is very important, and existing colliery DC electric earth leakage protective device is existed
The accuracy of many defects, such as control and the degree of accuracy are low, it is impossible to realize that power-off is reminded, it is impossible to notify outage condition to arrive in time
Monitoring room.
Utility model content
The purpose of this utility model is to provide a kind of intelligent colliery DC electric earth leakage protective device, above-mentioned to solve
The accuracy and the degree of accuracy of the control of proposition are low in background technology, cannot realize that power-off is reminded and in time cannot led to outage condition
Know monitoring room problem.
To achieve the above object, the utility model provides following technical scheme：A kind of intelligent colliery DC electric electric leakage
Protection device, including earth leakage protective device body, the earth leakage protective device body surrounding are provided with stator, and the electric leakage is protected
Protection unit body side is provided with exchange electrical interface, and described this body front surface of earth leakage protective device is provided with speech horn, liquid crystal
Display screen and control panel, the preceding surface of control panel are provided with start button, relay indicating light and select button, the leakage
Electrical protective device body interior is provided with single-chip microcomputer and internal circuit, and the output end of the earth leakage protective device body and three are intersected
Flow the input electric connection of contactor, the three-phase ac contactor and observation circuit series connection, the observation circuit and electric leakage
Protection device body is in parallel, and the output end of the earth leakage protective device body and the input of observation circuit are electrically connected with, described
Observation circuit summation current transformer is connected, and the observation circuit and voltage transformer are in parallel, and the current transformer and voltage are mutual
The output end of sensor is electrically connected with the input of earth leakage protective device body.
Preferably, the single-chip microcomputer uses stm32 single-chip microcomputers.
Preferably, the earth leakage protective device body upside is provided with flicker alarm lamp.
Preferably, the earth leakage protective device body upside is provided with wireless signal transceiver.
Compared with prior art, the beneficial effects of the utility model are：It is mono- that the equipment uses stm32 by single-chip microcomputer
Piece machine, high-performance, low cost, low-power consumption improve the degree of accuracy and the precision of control, increased the intelligent of system, by leakage
Electrical protective device body upside is provided with flicker alarm lamp, the information of detection can be sent into single-chip microcomputer in current transformer,
Single-chip microcomputer analyze there is electric leakage situation after will control internal circuit to flicker alarm lamp be powered, flicker alarm lamp flicker
Alarm, wireless signal transceiver is provided with by earth leakage protective device body upside, the letter that be able to will be detected in current transformer
Breath is sent to single-chip microcomputer, single-chip microcomputer analyze there is electric leakage situation after control wireless signal transceiver by controlling internal circuit
Electric leakage information is sent, facilitates Control Room remote monitoring, bridge rectifier, the side of can be good at are used by observation circuit
Just the detection to leaking electricity, while converting direct-current power into alternating-current power is powered.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is scheme of installation of the present utility model.
In figure：1- earth leakage protective device bodies；2- internal circuits；3- LCDs；4- flashes alarm lamp；5- is fixed
Piece；6- control panels；7- relay indicating lights；8- select buttons；9- start buttons；10- speech horns；11- wireless signals are received and dispatched
Device；12- single-chip microcomputers；13- voltage transformers；14- current transformers；15- observation circuits；16- three-phase ac contactors；17- is handed over
Stream electrical interface.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of the utility model protection.
Refer to Fig. 1 and Fig. 2, a kind of embodiment that the utility model is provided：A kind of intelligent colliery DC electric electric leakage
Protection device, including earth leakage protective device body 1, the surrounding of earth leakage protective device body 1 are provided with stator 5, earth leakage protective dress
Put the side of body 1 and exchange electrical interface 17 is installed, the preceding surface of earth leakage protective device body 1 is provided with speech horn 10, liquid crystal
Display screen 3 and control panel 6, the preceding surface of control panel 6 are provided with start button 9, relay indicating light 7 and select button 8, and electric leakage is protected
Single-chip microcomputer 12 and internal circuit 2, the output end and three-phase alternating current of earth leakage protective device body 1 are installed inside protection unit body 1
The input of contactor 16 is electrically connected with, and three-phase ac contactor 16 and observation circuit 15 are connected, and observation circuit 15 and electric leakage are protected
Protection unit body 1 is in parallel, and the output end of earth leakage protective device body 1 and the input of observation circuit 15 are electrically connected with, monitoring electricity
The summation current transformer 14 of road 15 is connected, and observation circuit 15 and voltage transformer 13 are in parallel, current transformer 14 and voltage transformer
13 output end is electrically connected with the input of earth leakage protective device body 1, and single-chip microcomputer 12 uses stm32 single-chip microcomputers, leaks
The upside of electrical protective device body 1 is provided with flicker alarm lamp 4, and the upside of earth leakage protective device body 1 is provided with wireless signal transmitting-receiving
Device 11.
Operation principle：When using, the exchange electrical interface 17 of the side of earth leakage protective device body 1 is accessed into other circuits, supervised
Converting direct-current power into alternating-current power can be that equipment is powered by slowdown monitoring circuit 15, and current transformer 14 can detect electric current, Current Mutual Inductance
The data of detection are sent to device 14 single-chip microcomputer 12 inside earth leakage protective device body 1, and single-chip microcomputer 12 is analyzed to data,
When data go wrong, single-chip microcomputer 12 can control the three-phase ac contactor 16 to carry out power down process, and single-chip microcomputer 12 can pass through
The control flicker alarm lamp 4 of internal circuit 2 is alarmed, and sends information to Control Room by wireless signal transceiver 11,
Speech horn 10 is reported to information.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, can in other specific forms realize that this practicality is new
Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new
The scope of type limits by appended claims rather than described above, it is intended that the equivalency fallen in claim is contained
All changes in justice and scope are included in the utility model.Any reference in claim should not be considered as limitation
Involved claim.
Claims (4)
1. a kind of intelligent colliery DC electric earth leakage protective device, including earth leakage protective device body（1）, it is characterised in that：
The earth leakage protective device body（1）Surrounding is provided with stator（5）, the earth leakage protective device body（1）Side is provided with
Exchange electrical interface（17）, the earth leakage protective device body（1）Preceding surface is provided with speech horn（10）, LCDs（3）
And control panel（6）, the control panel（6）Preceding surface is provided with start button（9）, relay indicating light（7）And select button
（8）, the earth leakage protective device body（1）Inside is provided with single-chip microcomputer（12）And internal circuit（2）, the earth leakage protective device
Body（1）Output end and three-phase ac contactor（16）Input be electrically connected with, the three-phase ac contactor（16）With
Observation circuit（15）Series connection, the observation circuit（15）With earth leakage protective device body（1）Parallel connection, the earth leakage protective device sheet
Body（1）Output end and observation circuit（15）Input be electrically connected with, the observation circuit（15）Summation current transformer（14）
Series connection, the observation circuit（15）And voltage transformer（13）Parallel connection, the current transformer（14）And voltage transformer（13）
Output end and earth leakage protective device body（1）Input be electrically connected with.
2. a kind of intelligent colliery DC electric earth leakage protective device according to claim 1, it is characterised in that：The list
Piece machine（12）Use stm32 single-chip microcomputers.
3. a kind of intelligent colliery DC electric earth leakage protective device according to claim 1, it is characterised in that：The leakage
Electrical protective device body（1）Upside is provided with flicker alarm lamp（4）.
4. a kind of intelligent colliery DC electric earth leakage protective device according to claim 1, it is characterised in that：The leakage
Electrical protective device body（1）Upside is provided with wireless signal transceiver（11）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621172140.8U CN206195341U (en) | 2016-11-03 | 2016-11-03 | Intelligent colliery direct current overhead line earthleakage protective equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621172140.8U CN206195341U (en) | 2016-11-03 | 2016-11-03 | Intelligent colliery direct current overhead line earthleakage protective equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206195341U true CN206195341U (en) | 2017-05-24 |
Family
ID=58733240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621172140.8U Expired - Fee Related CN206195341U (en) | 2016-11-03 | 2016-11-03 | Intelligent colliery direct current overhead line earthleakage protective equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206195341U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110047711A (en) * | 2019-04-26 | 2019-07-23 | 深圳德微电技术有限公司 | It is a kind of to combine the intelligent miniature circuit breaker being used cooperatively |
-
2016
- 2016-11-03 CN CN201621172140.8U patent/CN206195341U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110047711A (en) * | 2019-04-26 | 2019-07-23 | 深圳德微电技术有限公司 | It is a kind of to combine the intelligent miniature circuit breaker being used cooperatively |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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: 20170524 Termination date: 20171103 |