CN204203719U - A kind of mine electric locomotive aerial conductor electric power system - Google Patents
A kind of mine electric locomotive aerial conductor electric power system Download PDFInfo
- Publication number
- CN204203719U CN204203719U CN201420705398.4U CN201420705398U CN204203719U CN 204203719 U CN204203719 U CN 204203719U CN 201420705398 U CN201420705398 U CN 201420705398U CN 204203719 U CN204203719 U CN 204203719U
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- Prior art keywords
- housing
- power
- binding post
- electric locomotive
- detecting device
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Abstract
The utility model discloses a kind of mine electric locomotive aerial conductor electric power system, it has a housing, housing is provided with four binding posts, be respectively A, B, C, D, pole line is installed in housing automatically stop, power transmission circuit, pole line can be powered for a long time and change sectional type short-duration power into, namely only power to electric locomotive target phase, and other pole line is all in off-position, particularly by being provided with the direct supply U1-DC24V of two tunnels lower than safe voltage in circuit, U2-DC48V, can change according to varying environment, suitable safe voltage is selected to power, simultaneously, by arranging backward dioded VD in circuit, can prevent from producing voltage disturbance between AB and CD, ensure the stability run.
Description
Technical field
The utility model relates to a kind of mine electric gas equipment, especially relates to a kind of mine electric locomotive aerial conductor electric power system.
Background technology
At present, the electric locomotive downhole overhead line in China mine generally adopts subregion to insulate, and namely utilizes partition switch to be electrically connected, and also has indivedual mine to carry out fixed point power-off at parking lot installing travel switch.These methods all belong to the interim transient-power failure in parking lot, and pole line is always charged for a long time, and overhead transmission line voltage is general higher, is easy to occur electric shock accidents.The measure realizing the above-mentioned method of operation is almost the mode of operation with artificial deciliter power on-off device or partition switch, and that carries out people parking lot and the passing frequent section of personnel stops power transmission or sectional power failure power transmission.Although this mode is reliable, due to manual operation, response time and work efficiency can not meet the demands far away, also bring the hidden danger caused due to this operation simultaneously.
The patent of invention " a kind of intelligent electric locomotive pole line safe power supply device " that applicant applied on August 10th, 2013, preferably resolve the artificial deciliter inconvenience stopping power transmission and bring, achieve and make pole line only charged when electric locomotive runs, without electricity when electric locomotive is stopped transport, shorten the time of pole line charging operation.Meanwhile, when also eliminating low voltage power supply, leak once electric leakage or small area analysis, PLC can be made again to assign power supply instruction and cause electric problem of misdelivering.
But find in the trial run of several years, also there is following problem in this intelligent electric locomotive pole line safe power supply device: one is because under mine, environmental baseline is poor, when track speckling with too much dust muddy water, the feedback current signal that the safe voltage of the 24V provided by direct supply produces is weak, affects the transmission of signal; Two is there is the problem easily producing voltage disturbance between AB and CD, above 2 stability all affecting equipment and run.
Summary of the invention
The purpose of this utility model is to provide a kind of removing with detection of electrical leakage circuit, pole line is powered for a long time and changes sectional type short-duration power into, namely only power to electric locomotive target phase, also have and select different safe voltages according to different working environments, and prevent the electric vehicle overheading line intelligent power supply producing voltage disturbance between AB and CD.
The purpose of this utility model is achieved through the following technical solutions, it has a housing, housing is provided with four binding posts, be respectively A, B, C, D, pole line automatic transmission or not circuit is installed in housing, this circuit has two tunnels to select different safe voltage to power lower than direct supply U1-DC24V, U2-DC48V varying environment of safe voltage, and the negative pole of direct supply U1, U2 is connected between binding post C and D, and positive pole is connected in series switch SB successively and realizes voltage transitions, small area analysis detecting device L
1, leakage current detecting device L
2,after high backward dioded VD, be connected with binding post B; It also has a current transducer FL, line switching K and a PLC programming controller, one end of current transducer FL is connected with binding post B, after other end tandem link K switch, connect binding post A, the signal end of current transducer FL connects an input end of PLC programming controller, the control end of the output terminal connection line K switch of PLC programming controller, small area analysis detecting device L
1, leakage current detecting device L
2output terminal is connected with the input end of PLC programming controller respectively.
During use, device of the present utility model is installed on the top for controlling automatic transmission or not pole line section, make binding post A, B be serially connected with in pole line supply line, binding post C, D are serially connected with in track return circuit.After electric locomotive stops, current transducer FL dead electricity, this dead electricity signal is delivered to PLC programming controller, PLC programming controller judges by analysis, assert that electric locomotive does not rerun, just exports power cut signal, operation circuit K switch disconnects and having a power failure, thus realize pole line power failure, now, direct supply U1, U2 lower than safe voltage pass through switch SB, small area analysis detecting device L
1, leakage current detecting device L
2,high backward dioded VD, sends into overhead transmission line, no-load running.At this moment, L
1, L
2without power transmission electric current.When electric locomotive needs to drive, when electric locomotive electric loop is connected by control switch by driver, namely form loop, now, L
1, L
2just power transmission current signal is had to export, and deliver to PLC programming controller, PLC programming controller judges by analysis, confirms that electric locomotive request is powered, then sends electric signals to line switching K, line switching K connects, thus realize to pole line power transmission, electric locomotive just brings into operation, when the line electrical leakage exported, leakage indicator assigns instruction of stopping power supply to PLC programming controller, the transmission operation of PLC programming controller shutdown switch K.
The beneficial effects of the utility model: owing to adopting technique scheme, pole line can be powered for a long time and change sectional type short-duration power into, namely only power to electric locomotive target phase, and other pole line is all in off-position, particularly by being provided with two tunnels direct supply U1-DC24V, U2-DC48V lower than safe voltage in circuit, different safe voltage can be selected to power according to varying environment, simultaneously, by arranging backward dioded VD in circuit, can prevent from producing voltage disturbance between AB and CD, ensure the stability run.
Accompanying drawing explanation
Embodiment of the present utility model is described in detail below in conjunction with accompanying drawing
Fig. 1 is electrical schematic diagram of the present utility model
In figure: A, B, C, D-binding post; K-line switching; PLC-programming controller; L
1-small area analysis detecting device; L
2-leakage current detecting device; FL-current transducer; U1, U2-Switching Power Supply; SB-switch.
Embodiment
As shown in Figure 1, this mine electric locomotive aerial conductor electric power system it have a housing, housing is provided with four binding posts, be respectively A, B, C, D, pole line automatic transmission or not circuit is installed in housing, this circuit has two-way lower than direct supply U1-DC24V, U2-DC48V of safe voltage, and the negative pole of direct supply U1, U2 is connected between binding post C and D, and positive pole is connected in series switch SB successively and realizes voltage transitions, small area analysis detecting device L
1, leakage current detecting device L
2,after high backward dioded VD, be connected with binding post B; It also has a current transducer FL, line switching K and a PLC programming controller, one end of current transducer FL is connected with binding post B, after other end tandem link K switch, connect binding post A, the signal end of current transducer FL connects an input end of PLC programming controller, the control end of the output terminal connection line K switch of PLC programming controller, small area analysis detecting device L
1, leakage current detecting device L
2output terminal is connected with the input end of PLC programming controller respectively.
Claims (2)
1. a mine electric locomotive aerial conductor electric power system, comprise a housing, housing is provided with four binding posts, be respectively A, B, C, D, pole line automatic transmission or not circuit is installed in housing, this circuit has one lower than the direct supply U1 of safe voltage, and the negative pole of direct supply U1 is connected between binding post C and D, and positive pole is connected in series small area analysis detecting device L successively
1, leakage current detecting device L
2,after high backward dioded VD, be connected with binding post B; It also has a current transducer FL, line switching K and a PLC programming controller, one end of current transducer FL is connected with binding post B, after other end tandem link K switch, connect binding post A, the signal end of current transducer FL connects an input end of PLC programming controller, the control end of the output terminal connection line K switch of PLC programming controller, small area analysis detecting device L
1, leakage current detecting device L
2output terminal is connected with the input end of PLC programming controller respectively, it is characterized in that being connected with direct supply U1 by switch SB lower than direct supply U2 one end of safe voltage in addition, and the other end is connected between binding post C and D.
2. a kind of mine electric locomotive aerial conductor electric power system according to claim 1, is characterized in that between AB and CD, be also connected with a diode VD.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420705398.4U CN204203719U (en) | 2014-11-23 | 2014-11-23 | A kind of mine electric locomotive aerial conductor electric power system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420705398.4U CN204203719U (en) | 2014-11-23 | 2014-11-23 | A kind of mine electric locomotive aerial conductor electric power system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204203719U true CN204203719U (en) | 2015-03-11 |
Family
ID=52661660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420705398.4U Expired - Fee Related CN204203719U (en) | 2014-11-23 | 2014-11-23 | A kind of mine electric locomotive aerial conductor electric power system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204203719U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104483887A (en) * | 2014-11-23 | 2015-04-01 | 临沂施乃通电气技术有限公司 | Intelligent overhead line power cut and supply device for electric locomotive |
-
2014
- 2014-11-23 CN CN201420705398.4U patent/CN204203719U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104483887A (en) * | 2014-11-23 | 2015-04-01 | 临沂施乃通电气技术有限公司 | Intelligent overhead line power cut and supply device for electric locomotive |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150311 Termination date: 20151123 |