CN207663270U - A kind of shock controller of mine electric locomotive contact net slip - Google Patents
A kind of shock controller of mine electric locomotive contact net slip Download PDFInfo
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- CN207663270U CN207663270U CN201721898535.0U CN201721898535U CN207663270U CN 207663270 U CN207663270 U CN 207663270U CN 201721898535 U CN201721898535 U CN 201721898535U CN 207663270 U CN207663270 U CN 207663270U
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Abstract
The problem of the utility model discloses a kind of shock controllers of mine electric locomotive contact net slip, overcome in the prior art, and transportation system of bargh overhead line electric shock accidents takes place frequently.The utility model contains power loop, control loop, PLC controller, electric locomotive working condition detection microcontroller, power loop contains electrical source of power, power cable, locomotive guide rail, motor tramcar motor, dynamic main relay of wherein connecting in power cable, isolation contactor, undercurrent relay and overcurrent relay；Control loop contains the first control loop of automatic work, the second control loop of the second control loop of automatic work, the first control loop of manual work and manual work.The technology, which realizes, automatically and manually to be controlled, and can be effectively prevented from human body and be touched the electric shock casualty accident generation after slip.
Description
Technical field
The utility model is related to a kind of protective devices of mine electric locomotive, more particularly to a kind of mine electric locomotive contact net
The anti-electric shock apparatus of slip.
Background technology
According to transportation system's overhead line electric shock accidents that statistics bargh occurs, almost there are generation, and market every year
On the control device of not no commercialization be avoided that the generation of such accident.Once also occurred two or three company in the market to study
Such technology.
Such as one, Yantai a company, using series parallel resonance as detection means.The principle is permanent using resonant resistance
Determine in a certain range, but since there are big errors for the contact resistance by generations such as track, contact net, electric locomotives, leads to
Consulting is crossed, which uses currently without unit, has a unit used not also to be continuing with since effect is undesirable.
Two, also several enterprises utilize wireless signal transmitter principle, detection electric locomotive running region to stop automatically to realize
Power transmission.The technology is mainly by three influence factors；1, electromagnetic environment is interfered, and arc light electromagnetic field effects are generated by underground locomotive driving
It is larger.2, need switch board to wireless signal forward and reverse signal identification two-wire two-way lane, there are two-way traffic signals
Interference problem.3, transformation price is high, and wireless detection device list set is costly.In conclusion promotion effect is undesirable.In conjunction with above-mentioned
It situation and compares various detection control principles and obtains what a kind of automatic cognitron vehicle of measurement impedance mode and human body were protected
Anti-electric shock apparatus.
Utility model content
The problem of the utility model overcomes in the prior art, and transportation system of bargh overhead line electric shock accidents takes place frequently,
A kind of anti-electric shock apparatus for the mine electric locomotive contact net slip that security performance is high is provided.
The technical solution of the utility model is to provide a kind of mine electric locomotive contact net slip having following structure
Anti-electric shock apparatus：Microcontroller is detected containing power loop, control loop, PLC controller, electric locomotive working condition, power returns
Contain electrical source of power, power cable, locomotive guide rail, motor tramcar motor, dynamic main relay of wherein connecting in power cable in road
Device, isolation contactor, undercurrent relay and overcurrent relay；Control loop contain the first control loop of automatic work, from
It starts building to make the second control loop, the second control loop of the first control loop of manual work and manual work, automatic work first is controlled
Circuit processed contain switching switch normally-closed contact, be automatically stopped auxiliary relay normally-closed contact, automatic starting relay normally opened contact,
Assist latching relay normally opened contact, overcurrent relay normally-closed contact, power main relay actuating coil, auxiliary self-locking relay
Device actuating coil, wherein switching switch normally-closed contact one end connection control power supply, the other end be sequentially connected be automatically stopped auxiliary after
It is electric appliance normally-closed contact, the automatic starting relay normally opened contact being in parallel each other and auxiliary latching relay normally opened contact, excessively electric
After current relay normally-closed contact, the power main relay actuating coil being in parallel each other and auxiliary latching relay actuating coil,
Control power supply is accessed again；The second control loop of automatic work contains electric locomotive working condition detection microcontroller normally opened contact, automatic
Starting relay normally opened contact, PLC controller leading-out terminal, wherein electric locomotive working condition detect microcontroller normally opened contact one end
After connection control power supply, the other end is sequentially connected automatic starting relay normally opened contact and PLC controller leading-out terminal；Manual work
Make the first control loop contain switching switch normally opened contact, manually boot relay normally open contact, overcurrent relay it is normally closed touch
Point, power main relay actuating coil and auxiliary latching relay actuating coil, wherein one end connection of switching switch normally opened contact
Control power supply after, the other end be sequentially connected manually boot relay normally open contact, overcurrent relay normally-closed contact, each other mutually simultaneously
After the power main relay actuating coil and auxiliary latching relay actuating coil of connection, then access control power supply；Manual work
Two control loops contain switching switch normally opened contact, manual shutdown switch normally-closed contact, manual start switch normally opened contact, manually
Starting relay normally opened contact and relay actuating coil is manually booted, wherein switching switch normally opened contact one end connection control electricity
Behind source, manual start switch normally opened contact and hand that the other end is sequentially connected manual shutdown switch normally-closed contact, is in parallel each other
Dynamic starting relay normally opened contact after manually booting relay actuating coil, then accesses control power supply.
Overcurrent relay normally opened contact one end connects access control power supply after overcurrent reset key normally-closed contact, separately
Control power supply is accessed behind one end and the series connection of overcurrent relay actuating coil again, overcurrent relay assists self-locking normally opened contact will
Overcurrent relay self-locking.
Undercurrent relay normally-closed contact one end access control power supply, the other end access PLC controller leading-out terminal.
After the isolation contactor actuating coil series connection auxiliary latching relay normally opened contact, alternating current is accessed.
The electrical source of power is 250 volts, is alternating current or direct current.
The control power supply is 24 volts of direct current, and electric locomotive working condition detection microcontroller and PLC controller access control
Power supply.
The PLC controller leading-out terminal is normally opened output end or normally closed output end, and PLC controller input terminal is normally opened
Input terminal or normally closed input terminal.
Compared with prior art, the anti-electric shock apparatus of the utility model mine electric locomotive contact net slip has following excellent
Point：It by the combination of relay, PLC controller and microcontroller, realizes and automatically and manually controls, human body can be effectively prevented from and touched
Encounter the generation of the electric shock casualty accident after slip, low in energy consumption, at low cost, Popularizing of A is high.Versatility, strong applicability.It can meet
A variety of bad working environments, including adaptation is " lack of standardization " drives, lacks maintenance in equipment and cause the contact resistances such as locomotive, slip, track
Remain to delicately to detect under the conditions of big, overcome electric arc caused by reliably work under a variety of environment such as strong electromagnetic, do not occur
Malfunction.
Description of the drawings
Fig. 1 be the utility model mine electric locomotive contact net slip anti-electric shock apparatus in PLC controller wiring diagram it
One；
Fig. 2 be the utility model mine electric locomotive contact net slip anti-electric shock apparatus in PLC controller wiring diagram it
Two；
Fig. 3 be the utility model mine electric locomotive contact net slip anti-electric shock apparatus in main control principle drawing；
Fig. 4 be the utility model mine electric locomotive contact net slip anti-electric shock apparatus in automatically and manually control loop
Wiring diagram；
Fig. 5 be the utility model mine electric locomotive contact net slip anti-electric shock apparatus in disconnecting relay wiring diagram.
Specific implementation mode
ZH is switching switch in description of the drawings, and KA1 is to be automatically stopped auxiliary relay normally-closed contact, and KA101 is to assist certainly
Relay normally open contact is locked, the automatic starting relay normally opened contacts of KA5, KA9 is overcurrent relay actuating coil, and KA91 was
Electric current relay normally-closed contact, KA92 are overcurrent relay normally opened contacts, and G1, which is that overcurrent relay auxiliary self-locking is normally opened, to be touched
Point, SB9 are overcurrent reset key normally-closed contacts, and KM1 is power main relay actuating coil, and KA10 is auxiliary latching relay work
Make coil, M is motor tramcar motor, and L is locomotive guide rail, and SB1 is manual start switch normally opened contact, and SB2 is that manual stopping is opened
Normally-closed contact is closed, KA14 is to manually boot relay actuating coil, and KA141 is to manually boot relay normally open contact, and Q1 is deficient
Electric current relay normally-closed contact, I0.0 are PLC controller input terminals, and I0.1 is PLC controller input terminal, and Q0.0 is PLC
Controller output end.
The effect of microcontroller normally opened contact is detected to electric locomotive working condition, that is, resistance value, and in monolithic
The signal value of output 1 or 0 at machine normally opened contact, it is dynamic to form the operation after automatic decision by the conversion of automatic starting relay
Make.
KA1 is to be automatically stopped auxiliary relay normally-closed contact, the resistance by microcontroller internal processes to motor tramcar motor M
It is anti-calculated after, when meeting outage condition, it is electric that the Q0.0 output signals of PLC make KA1 coils obtain, and is automatically powered off to realize.
Fig. 3 is main control figure.KA5 is automatic starting relay normally opened contact, and KA1 is that be automatically stopped auxiliary relay normal
Closed contact, KA9 are overcurrent protection relay actuating coils.KA5 follows the impedance value of microcontroller to judge control signal, and KA1 is PLC
Program control is related, and KA9 is overcurrent relay control, is the important control principle of this patent above.
The protection against electric shock of the utility model mine electric locomotive contact net slip is filled with reference to the accompanying drawings and detailed description
It sets and is described further：As shown, containing power loop, control loop, PLC controller, electric locomotive work in the present embodiment
State-detection microcontroller,
Power loop contains electrical source of power, power cable, locomotive guide rail L, motor tramcar motor M, wherein in power cable
It connects dynamic main relay, isolation contactor KM5, undercurrent relay and overcurrent relay.
Control loop, which contains the first control loop of automatic work, the second control loop of automatic work, manual work first, to be controlled
The second control loop of circuit processed and manual work.
The first control loop of automatic work contains switching switch normally-closed contact, is automatically stopped auxiliary relay normally-closed contact
KA1, automatic starting relay normally opened contact KA5, auxiliary latching relay normally opened contact KA101, overcurrent relay are normally closed tactile
Point KA91, power main relay actuating coil KM1, auxiliary latching relay actuating coil KM10, are touched wherein switching switch is normally closed
Point one end connection control power supply, the other end be sequentially connected and be automatically stopped auxiliary relay normally-closed contact KA1, be in parallel each other from
Dynamic starting relay normally opened contact KA5 and auxiliary latching relay normally opened contact KA101, overcurrent relay normally-closed contact
After KA91, the power main relay actuating coil KM1 being in parallel each other and auxiliary latching relay actuating coil KM10, then access
Control power supply.
The second control loop of automatic work contains electric locomotive working condition detection microcontroller normally opened contact, starts relay automatically
Device normally opened contact KA5, PLC controller leading-out terminal, wherein electric locomotive working condition detect the connection of microcontroller normally opened contact one end
After controlling power supply, the other end is sequentially connected automatic starting relay normally opened contact KA5 and PLC controller leading-out terminal.
The first control loop of manual work contain switching switch normally opened contact, manually boot relay normally open contact KA141,
Overcurrent relay normally-closed contact KA91, power main relay actuating coil KM1 and auxiliary latching relay actuating coil KM10,
Wherein after switching switch normally opened contact one end connection control power supply, the other end, which is sequentially connected, manually boots relay normally open contact
KA141, overcurrent relay normally-closed contact KA91, the power main relay actuating coil KM1 being in parallel each other and auxiliary self-locking
After relay actuating coil KM10, then access control power supply.
The second control loop of manual work contain switching switch normally opened contact, manual shutdown switch normally-closed contact SB2, manually
Starting switch normally opened contact SB1, it manually boots relay normally open contact KA141 and manually boots relay actuating coil KA14,
Wherein after switching switch normally opened contact one end connection control power supply, the other end be sequentially connected manual shutdown switch normally-closed contact SB2,
It the manual start switch normally opened contact SB1 that is in parallel each other and manually boots relay normally open contact KA141, manually boot relay
After device actuating coil KA14, then access control power supply.
Control is accessed after the one end overcurrent relay normally opened contact KA92 connection overcurrent reset key normally-closed contact SB9
Control power supply is accessed again after power supply, the other end and the KA9 series connection of overcurrent relay actuating coil, and overcurrent relay assists self-locking
Normally opened contact G1 is by overcurrent relay self-locking.
The one end undercurrent relay normally-closed contact Q1 access control power supply, the other end access PLC controller output end
Son.
After the isolation contactor KM5 actuating coils series connection auxiliary latching relay KA10 normally opened contacts, alternating current is accessed.
The electrical source of power is 250 volts, is alternating current or direct current.
The control power supply is 24 volts of direct current, and electric locomotive working condition detection microcontroller and PLC controller access control
Power supply.
The PLC controller leading-out terminal is normally opened output end or normally closed output end, and PLC controller input terminal is normally opened
Input terminal or normally closed input terminal.
Circuit operation principle explanation：
1）, the control analysis of automatic power transmission：The work step of 06 part in Fig. 4, ZH change-over switches are switched to automatic shape in Fig. 4
State, 03 circuit are connected and prepare for automatic work.In Fig. 3, the normally-closed contact of impedance detection microcontroller be connected on+24V power supplys and
Between KA5, when the impedance detected is less than or equal to 20 ohm, when meeting the impedance of motor tramcar motor M at this time, microcontroller is normally closed
Contact closure, KA5 coils obtain electric.Following switch motion will be brought：1, KA5 normally opened contacts are closed in Fig. 2, have indicated microcontroller
The actuating signal of the nominal situation underground electric locomotive motor M detected is input to PLCI0.0；2, KA5 normally opened contacts close in Fig. 4
It closes, coil KA10, KM1 all energized actions.When coil KA10, KM1 all it is electric when, following switch motion will be brought：1, KM1 master touches
Head is attracted, and DC power supply is sent to load end, electric locomotive obtains electricity operation；2, the normally opened contact KA101 of KA10 is closed in Fig. 4, from
Locking wire circle KA10, KM1；3, in Fig. 5, KA101 normally opened contacts be closed, connect KM5 be isolated contactor, by monolithic machine testing signal every
From preventing high pressure to be passed to microcontroller.
2）, automatically power off control analysis：When electric locomotive obtains electric normal operation, electric current flows through undercurrent relay and generates magnetic
, undercurrent relay normally-closed contact Q1 in Fig. 2 is disconnected, indicates that the signal for being supported on work is input to PLCI0.1.Work as electricity
Locomotive is out of service, undercurrent relay normally-closed contact Q1 losss of excitation, and contact returns, and PLC program is by calculating undercurrent relay
The time value that normally-closed contact Q1 is returned, takes in the time zone thresholding for having load.When more than preset value, the ends PLCQ0.0 are defeated in Fig. 2
Going out+24V makes KA1 coil motions, and auxiliary relay normally-closed contact KA1 is automatically stopped in Fig. 4 and is disconnected, 03 circuit dead electricity, KM1,
KA10 coil losing electricities, disconnect electrical source of power automatically.
3）, occur make somebody a mere figurehead slip ground short circuit when analysis：The coil tandem of overcurrent relay in power loop, when
When slip ground short circuit occurs, powerful earth current moment generates powerful magnetic field and is attracted the armature of overcurrent relay.
Following switch motion will be brought：1, overcurrent relay auxiliary self-locking normally opened contact G1 is closed in Fig. 3, overcurrent relay work
Coil KA9 coils obtain electric, overcurrent relay normally opened contact KA92 normally opened contact self-locking KA9 coils；2, overcurrent relay in Fig. 4
Device normally-closed contact KA91 is disconnected, since KA91 is serially connected in 03-06 control loop, can disconnect manually, automatically control in the case of
Power transmission, to prevent pedestrian from getting an electric shock.
4）, manually control state analysis：With reference to 013-07-08 circuit of Fig. 4, when microcontroller failure, in order not to shadow
Production task is rung, manual switching is provided with.ZH change-over switches are switched to manual mode, and 013-07-08 circuit is connected, and SB2 is
Manual shutdown switch normally-closed contact, SB1 are manual start switch normally opened contact.SB1 is pressed, relay actuating coil is manually booted
KA14 obtains electric and self-locking, manually boots relay normally open contact KA141 and is closed, will bring following switch motion：1, power master after
Electrical work coil KM1 is attracted, and electrical source of power is sent to load end, electric locomotive obtains electricity operation；2, in Fig. 4, KA10 coils obtain it is electric,
Latching relay normally opened contact KA101 is assisted to be closed, self-locking coil KA10, KM1；3, in Fig. 5, KA10 normally opened contacts are closed, and are connect
Monolithic machine testing signal isolation is prevented high pressure to be passed to microcontroller by logical isolation contactor KM5.
Design process needs to pay attention to：1, cabinet controls explanation：1）, every switch board can control 4 sections of overhead lines respectively, I
Company is standby with 2 using 2 at present.A. illustrate electrical wiring mode with reference to switch board main wiring diagram：Inlet wire passes through single-pole isolator
Access line feeder takes electricity（Disconnecting switch has pulled open apparent gap when overhauling switch board, meets code requirement）；Under disconnecting switch
4 branches in end point are connected with undercurrent relay respectively, the detection output of second state after being acted as main contactor, with PLC journeys
Sequence realizes power-off control jointly；B. the executive component of major loop on-off is handed over using the city rail of 213 factory of Great Wall
Logical D.C. contactor, the contactor use vacuum extinction, can effectively extinguish 2 meters of long electric arcs, and installation volume is small, adapts to severe ring
Border；C. D.C. contactor main contact lower end is connect by insulated conductor with the contact net that tunnel is segmented, and D.C. contactor is attracted lane
Road overhead line electrification；Conversely, overhead line power-off in tunnel when contactor disconnects；D. D.C. contactor lower end is connected one and is exchanged simultaneously
Contactor, AC contactor main contact connect into single line with fuse, as microcontroller protection element, with microcontroller detection line string
Connection.E. the detecting element of auto-power-cutting uses impedance microcontroller, and when calculating electric locomotive impedance, output switching signal is to straight
Contactor coil and A.C. contactor are flowed, D.C. contactor main contact is attracted, and power supply is sent by disconnecting switch-D.C. contactor
To overhead line；A.C. contactor is attracted isolation microcontroller, and microcontroller is prevented to be broken down by high-voltage damage.
2, the overhead line of 1,040 1700 meters of dual carriageways of footrill is carried out being segmented every 300 ~ 450 meters once, is divided at every
1 switch board is respectively installed among section circuit；Overhead line after segmentation as load access switch board, the power supply of switch board take to
The line feeder of overhead line parallel lay-up is powered；Switch board calculates resistive, perceptual or capacitive by microcontroller detecting element
Impedance operator（The impedance of the loads such as human body, electric locomotive or metal）It realizes auto-power-cutting, gets an electric shock to be effectively prevented personnel
The generation of accident and the loss of electric energy.B. cabinet controls explanation：
3, action process：A. when vehicle needs transport, Engine Powered Bow rise, which is taken, contacts that surface contact net is aerial
Slip takes electricity, switch board to calculate the emotional resistance of electric locomotive, connects working power driving motor vehicle traveling；Conversely, electric locomotive
When parking is not transported, pantograph, which is fallen, leaves stringing slip, switch board automatically time-delay power-off and the capacitive reactances of calculating at this time.b.
When human body, which touches contact net, makes somebody a mere figurehead slip, switch board calculates the resistive impedance of human body and no power transmission automatically, to ensure
The life security of personnel.C. when contact net make somebody a mere figurehead slip fall to track or greatly after, form permanent metallic ground therefore
When barrier, switch board carries out immediate trip using the out-of-limit device of direct current and is latched manually or automatically transmission mode, be effectively prevented from by
The generation of step voltage electric shock accidents caused by metallic ground failure.
4, power supply real-time online indicates.It is maked somebody a mere figurehead in contact net and power supply instruction flashing buzzer is installed as slip band on slip
Electricity instruction, real-time display circuit electriferous state.Slip, which is maked somebody a mere figurehead, with sound transmission Range Representation charges range, the buzzing of which slip
Device, which is rung, indicates which slip has electricity, does not ring and then indicates that slip is not charged.After pedestrian's ear hears the buzzer sound, it should be noted that observation
Locomotive simultaneously avoids；At this point, slip buzzer rings-have electricity above runway, slip buzzer does not ring-nothing above no motorcycle track
Electricity.
5, component function introduction：A. detection microcontroller carries out operation using the CM0S single-chip microcomputer integrated circuits of oneself exploitation
With compare+PLC programmable controller, have precision is m Ω grade high, range is wide, calculating speed is fast, malfunction interfere it is small.By right
The impedance of circuit electric locomotive, metallic earthing and human body etc. carries out sampling and integrated computation, can accurately identify testee
Electric parameter.B. de-energized portion is delayed when running light in the line using inspection current relay+PLC programmable controller
Power-off.C. execution part uses advanced orbit traffic direct current contactor, with no arc light, without the spies such as electromagnetic interference, small
Property, which opens soon better than direct current.
Claims (7)
1. a kind of shock controller of mine electric locomotive contact net slip, it is characterised in that：Containing power loop, control back
Road, PLC controller, electric locomotive working condition detect microcontroller, and power loop contains electrical source of power, power cable, locomotive guide rail,
Motor tramcar motor, dynamic main relay of wherein connecting in power cable, isolation contactor, undercurrent relay and overcurrent
Relay；Control loop contains the first control loop of automatic work, the second control loop of automatic work, manual work first and controls
The second control loop of circuit and manual work, the first control loop of automatic work contain switching switch normally-closed contact, are automatically stopped
Auxiliary relay normally-closed contact, automatic starting relay normally opened contact, auxiliary latching relay normally opened contact, overcurrent relay
Normally-closed contact, power main relay actuating coil, auxiliary latching relay actuating coil, wherein switching switch normally-closed contact one end
Connection control power supply, the other end be sequentially connected and be automatically stopped auxiliary relay normally-closed contact, be in parallel each other it is automatic start after
Electric appliance normally opened contact and auxiliary latching relay normally opened contact, overcurrent relay normally-closed contact, the power master being in parallel each other
After relay actuating coil and auxiliary latching relay actuating coil, then access control power supply；The second control loop of automatic work
Contain electric locomotive working condition detection microcontroller normally opened contact, automatic starting relay normally opened contact, PLC controller output end
After son, wherein electric locomotive working condition detect microcontroller normally opened contact one end connection control power supply, the other end is sequentially connected automatically
Starting relay normally opened contact and PLC controller leading-out terminal；It is normally opened tactile that the first control loop of manual work contains switching switch
Point manually boots relay normally open contact, overcurrent relay normally-closed contact, power main relay actuating coil and auxiliary self-locking
Relay actuating coil, wherein after switching switch normally opened contact one end connection control power supply, the other end, which is sequentially connected, to manually boot
Relay normally open contact, overcurrent relay normally-closed contact, the power main relay actuating coil being in parallel each other and auxiliary are certainly
After locking relay actuating coil, then access control power supply；The second control loop of manual work contains switching switch normally opened contact, hand
Dynamic shutdown switch normally-closed contact, manually boots relay normally open contact and manually boots relay at manual start switch normally opened contact
Device actuating coil, wherein after switching switch normally opened contact one end connection control power supply, the other end is sequentially connected manual shutdown switch
Normally-closed contact, the manual start switch normally opened contact being in parallel each other and manually boot relay normally open contact, manually boot after
After electrical work coil, then access control power supply.
2. the shock controller of mine electric locomotive contact net slip according to claim 1, it is characterised in that：It is described
Overcurrent relay normally opened contact one end connects access control power supply, the other end and overcurrent after overcurrent reset key normally-closed contact
Control power supply is accessed after the series connection of relay actuating coil again, overcurrent relay assists self-locking normally opened contact by overcurrent relay
Self-locking.
3. the shock controller of mine electric locomotive contact net slip according to claim 1, it is characterised in that：It is described
Undercurrent relay normally-closed contact one end access control power supply, the other end access PLC controller leading-out terminal.
4. the shock controller of mine electric locomotive contact net slip according to claim 1, it is characterised in that：It is described
After contactor actuating coil series connection auxiliary latching relay normally opened contact is isolated, alternating current is accessed.
5. the shock controller of mine electric locomotive contact net slip according to any one of claims 1-4, special
Sign is：The electrical source of power is 250 volts, is alternating current or direct current.
6. the shock controller of mine electric locomotive contact net slip according to any one of claims 1-4, special
Sign is：The control power supply is 24 volts of direct current, and electric locomotive working condition detection microcontroller and PLC controller access control electricity
Source.
7. the shock controller of mine electric locomotive contact net slip according to any one of claims 1-4, special
Sign is：The PLC controller leading-out terminal is normally opened output end or normally closed output end, and PLC controller input terminal is normally opened
Input terminal or normally closed input terminal.
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| CN201721898535.0U CN207663270U (en) | 2017-12-29 | 2017-12-29 | A kind of shock controller of mine electric locomotive contact net slip |
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| CN201721898535.0U CN207663270U (en) | 2017-12-29 | 2017-12-29 | A kind of shock controller of mine electric locomotive contact net slip |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109849696A (en) * | 2018-11-27 | 2019-06-07 | 中车株洲电力机车有限公司 | A kind of electronic current collector control circuit of energy storage low floor vehicle |
| CN109857147A (en) * | 2019-03-19 | 2019-06-07 | 北京特种机械研究所 | A kind of automatic model- following control circuit of PGV visual scanning head |
| CN110707674A (en) * | 2019-11-05 | 2020-01-17 | 国网山东省电力公司昌邑市供电公司 | Equipment control circuit and equipment capable of eliminating inductance |
| CN110792623A (en) * | 2019-11-26 | 2020-02-14 | 中国华能集团清洁能源技术研究院有限公司 | Intelligent inspection system for fan of control cabinet of wind turbine generator and working method of intelligent inspection system |
| CN110737235B (en) * | 2019-11-01 | 2022-10-21 | 中核核电运行管理有限公司 | Double-speed motor control device and method |
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2017
- 2017-12-29 CN CN201721898535.0U patent/CN207663270U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109849696A (en) * | 2018-11-27 | 2019-06-07 | 中车株洲电力机车有限公司 | A kind of electronic current collector control circuit of energy storage low floor vehicle |
| CN109849696B (en) * | 2018-11-27 | 2020-07-31 | 中车株洲电力机车有限公司 | Control circuit of electric current collector of energy storage low-floor vehicle |
| CN109857147A (en) * | 2019-03-19 | 2019-06-07 | 北京特种机械研究所 | A kind of automatic model- following control circuit of PGV visual scanning head |
| CN109857147B (en) * | 2019-03-19 | 2021-10-22 | 北京特种机械研究所 | PGV visual scanning head automatic following control circuit |
| CN110737235B (en) * | 2019-11-01 | 2022-10-21 | 中核核电运行管理有限公司 | Double-speed motor control device and method |
| CN110707674A (en) * | 2019-11-05 | 2020-01-17 | 国网山东省电力公司昌邑市供电公司 | Equipment control circuit and equipment capable of eliminating inductance |
| CN110792623A (en) * | 2019-11-26 | 2020-02-14 | 中国华能集团清洁能源技术研究院有限公司 | Intelligent inspection system for fan of control cabinet of wind turbine generator and working method of intelligent inspection system |
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