CN208015083U - A kind of new type grounding device - Google Patents
A kind of new type grounding device Download PDFInfo
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- CN208015083U CN208015083U CN201820513420.3U CN201820513420U CN208015083U CN 208015083 U CN208015083 U CN 208015083U CN 201820513420 U CN201820513420 U CN 201820513420U CN 208015083 U CN208015083 U CN 208015083U
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Abstract
A kind of new type grounding device, including cabinet and grounding assembly；Grounding assembly is set in cabinet, mechanism is accessed including grounding switch, transmission mechanism, motor, cable, cable accesses mechanism and power grid cables and ground wire cable is respectively connected to the first terminal and Second terminal, and motor drive transmission device drives earthing to connect or disconnect first terminal and Second terminal；The new type grounding device further includes electrical verification mechanism and circuit for controlling motor, the circuit for controlling motor has enabled control terminal and control instruction receiving terminal, the electrical verification mechanism has voltage detecting end and electrical verification result output end, power grid cables voltage is detected at voltage detecting end, and electrical verification result output end provides enable signal for the enabled control terminal of circuit for controlling motor or goes enable signal.The utility model sends enable signal or goes enable signal to grounding assembly by electrical verification mechanism acquisition testing network voltage so as to ensureing together more than the operation of grounding switch, prevents from executing ground connection operation to the power grid of electrification.
Description
" technical field "
The utility model is related to electromechanical equipment and T & D Technology field more particularly to a kind of new type grounding devices.
" background technology "
Urban track traffic generally uses contact net to power.Since contact net voltage is higher, examined when to rail traffic
When repairing, in order to ensure that the personal safety of maintenance personal, contact net need to carry out grounding.Common practice is to use earthing
Contact net and ground wire short circuit are avoided contact with personal injury caused by guipure electricity by lock.
But before carrying out ground connection operation to contact net, maintenance personal needs to confirm that contact net has powered off, and no longer band is high
Pressure.Otherwise, the contact net with high pressure can not only damage the life security of earthing or grounding means or even entail dangers to operating personnel.
" invention content "
The purpose of the utility model is to provide a kind of new type grounding device, prevent from carrying out ground connection behaviour to the contact net of electrification
Make.The utility model is realized by following technical scheme：
A kind of new type grounding device, including cabinet and grounding assembly；Grounding assembly is set in cabinet, including earthing
Lock, transmission mechanism, motor, cable access mechanism, and grounding switch includes first terminal, Second terminal and earthing, cable access
Power grid cables and ground wire cable are respectively connected to the first terminal and Second terminal by mechanism, and motor drives the transmission mechanism band
It moves the earthing and connects or disconnects the first terminal and Second terminal；It is characterized in that：The new type grounding device also wraps
Electrical verification mechanism and circuit for controlling motor are included, the circuit for controlling motor has enabled control terminal and control instruction receiving terminal, described
There is voltage detecting end and electrical verification result output end, voltage detecting end to detect power grid cables voltage for electrical verification mechanism, and electrical verification result is defeated
Outlet provides enable signal for the enabled control terminal of circuit for controlling motor or goes enable signal.
Further, the electrical verification mechanism includes at least one set of series resistance group and voltage detection module；Every group of series connection
Resistance group includes first resistor R1 and second resistance R2, and the one end first resistor R1 gets access to grid anode, the other end and second resistance R2
One end electrical connection；The other end of second resistance R2 gets access to grid cathode, and voltage detection module acquires the electricity at the both ends second resistance R2
Pressure obtains network voltage U according to the partial pressure relationship of second resistance R2 and first resistor R1It connects。
Further, the grounding switch further includes the first insulator, the second insulator and grounding switch mounting plate；Institute
It states first terminal and grounding switch peace is periodically installed at by the first insulator and the second insulator respectively with the Second terminal
In loading board；One end of the earthing is hinged with first terminal, and the other end contacts under the drive of transmission mechanism with Second terminal
Or separation.
Further, the transmission mechanism includes first connecting rod, second connecting rod and drive shaft；The drive shaft is rotatable
Ground is mounted on the grounding switch mounting plate；One end of the first connecting rod is connect for one with the drive shaft, the other end with
One end of the second connecting rod connects；The other end of the second connecting rod is connect with the earthing；The drive shaft it is another
Head is connect with the power output end of motor.
Further, the transmission mechanism further includes third insulator, the 4th insulator and insulator support plate；It is described
Third insulator and the 4th insulator are periodically installed between grounding switch mounting plate and insulator support plate；The drive shaft
Rotationally, it is penetratingly mounted on grounding switch mounting plate and insulator support plate.
Further, the grounding assembly further includes travel switch, and the trigger mechanism of travel switch is set to drive shaft,
The signal output end of the agretope of one connecting rod, second connecting rod or earthing activity interval, travel switch connects circuit for controlling motor
Control instruction receiving terminal.
Further, the grounding assembly further includes camera, is set in the cabinet, the investigative range of the camera
Cover the scope of activities of the earthing, the signal output end of camera connects a remote terminal.
Further, cable access mechanism includes the first ground connection, the first power grid connector, the second ground wire company
Fitting, the second power grid connector, the 5th insulator and the 6th insulator；First ground connection and the first power grid connector
Run through respectively by the 5th insulator and the 6th insulator and is arranged on the grounding switch mounting plate；The first ground wire connection
One end of part, the first power grid connector one end be grounded cable, power grid cables respectively, the one of first ground connection
It holds, the one end of the other end of the first power grid connector respectively with one end of the second ground connection, the second power grid connector is electrically connected
It connects；The other end of second ground connection, the second power grid connector the other end respectively with the first terminal, second end
Son electrical connection.
Further, cable access mechanism includes the first ground connection, the first power grid connector, the second ground wire company
Fitting, the second power grid connector, the 5th insulator, the 6th insulator and cable access board；The cable access board is mounted on and connects
The lower section of ground disconnecting link mounting plate；First ground connection and the first power grid connector pass through the 5th insulator and the 6th respectively
Insulator is through setting on the cable access board；One end of first ground connection, the first power grid connector one
End is grounded cable, power grid cables respectively, the other end of first ground connection, the first power grid connector the other end point
It is not electrically connected with one end of one end of the second ground connection, the second power grid connector；Second ground connection it is another
It holds, the other end of the second power grid connector is electrically connected with first terminal, Second terminal respectively.
Further, cable access mechanism includes the first ground connection, the first power grid connector, the second ground wire company
Fitting, the second power grid connector, cable access case, the 5th insulator and the 6th insulator；The cable access case is to include
Cable accesses the babinet of window, is mounted on the lower section of grounding switch mounting plate；First ground connection and the first power grid connect
Fitting accesses one opposite with side window of case by the 5th insulator with the 6th insulator through the setting cable respectively
On a side；One end of first ground connection, the first power grid connector one end be grounded respectively cable, power grid electricity
Cable, the other end of first ground connection, the first power grid connector the other end respectively with the second ground connection one
One end electrical connection at end, the second power grid connector；The other end of second ground connection, the second power grid connector it is another
End is electrically connected with first terminal, Second terminal respectively.
Further, the new type grounding device further includes operation panel, which is set to interior of equipment cabinet front end,
The electrical verification mechanism and grounding assembly are set to the rear of operation panel；It is provided on the operation panel for controlling Novel connecting
The operating-controlling mechanism and corresponding control circuit of ground device work；It is additionally provided on the operation panel for showing novel grounded dress
Set the indication mechanism of working condition and environment and corresponding display circuit.
Further, the operating-controlling mechanism being arranged on the operation panel includes switch knob, opening button, switch knob,
The instruction output end of the corresponding control circuit of opening button connects the control instruction receiving terminal of the circuit for controlling motor；The behaviour
The indication mechanism for making to be arranged on panel includes that combined floodgate indicator light, separating brake indicator light, electrification indicator light, dead electricity indicator light and voltage are aobvious
Display screen；Corresponding display circuit corresponding to switch knob, the opening button control circuit respectively of combined floodgate indicator light, separating brake indicator light
Instruction output end connects, electrification indicator light, dead electricity indicator light and voltage display screen corresponding display circuit with the electricity-testing machine
The electrical verification result output end of structure connects.
Further, the grounding assembly further includes the telecommunication circuit for being communicated to connect with remote terminal, this is remote
The control instruction receiving terminal of circuit for controlling motor described in journey telecommunication circuit and the connection of the electrical verification result output end of the electrical verification mechanism.
Further, the operating-controlling mechanism being arranged on the operation panel includes switch knob, and the switch knob is to switch
Mode refers to the control of switch knob, the instruction output end and the circuit for controlling motor of the corresponding control circuit of opening button
It enables receiving terminal connect, or telecommunication circuit is connect with the control instruction receiving terminal of the circuit for controlling motor.
Further, one end of the drive shaft towards operation panel is fixedly installed manual operation counterpart；It is described new
Type earthing or grounding means further includes switching regulatory agencies, which includes the electric model being set on the operation panel
Switch, manual mode gathering hole and blocking mechanism, electric model switch concatenate the circuit for controlling motor, control motor control electricity
Road is closed or disconnects, and the position of manual mode gathering hole setting and the position of the manual operation counterpart are adapted；Breech-block
Structure blocks electric model switch and manual mode gathering hole when being latched, when unlock exposes the electric model switch and manually
Pattern gathering hole.
Further, the electric model switch is telescopic button；When the electric model switch retraction, the motor
Control circuit is closed；When the electric model switch stretches out, the circuit for controlling motor disconnects；The blocking mechanism includes lock knob
It is articulated on operation panel with one end of baffle, baffle, the other end is opened or closed；The other end of baffle is locked in behaviour by lock knob
To make on panel or unlocks, electric model switch bounces back under baffle counter-active effect when locking, when baffle is opened, electric model switch
Auto-extending, and expose manual mode gathering hole.
Further, the cabinet includes cabinet, front door and rear cover, front door and rear cover be separately mounted to the front end of cabinet with
Rear end；The third observation panel for directly observing grounding assembly action is offered on the operation panel；It is arranged on the front door
There is the first watch window for observing the operating-controlling mechanism and indication mechanism, the position setting of corresponding third observation panel on the front door
There is the second watch window.
Further, the new type grounding device further includes electric-magnetic lock mechanism；The electric-magnetic lock mechanism includes installation
At front door towards the first magnetic element of cabinet interior side, mounted on operation panel towards the second magnetic of side outside cabinet
Element and electromagnetic mechanism control circuit；The electromagnetic mechanism control circuit controls the first magnetic element and/or the second magnetic member
The magnetic intensity of part or direction.
The utility model sends enable signal or goes enable signal to connecing by electrical verification mechanism acquisition testing network voltage
Ground component so as to ensureing together more than the operation of grounding switch, prevent from executing ground connection operation to the power grid of electrification.Meanwhile this
Utility model electrical verification mechanism can be led in the case of multigroup series resistance group is arranged to avoid because of one group of series resistance group failure
Cause the risk of electrical verification result inaccuracy.The utility model is by the action of camera remote monitoring grounding switch, by front door
Visual windows can observe the action of operation panel and grounding switch, be grounded the visualization of device.In addition, this practicality is new
The grounding assembly used in type has the characteristics of safe and reliable, stable structure.Furthermore the utility model provides remotely, on the spot
Operation mode, additionally provide electrically and manually operation mode.
" description of the drawings "
In order to illustrate more clearly of the utility model embodiment, attached drawing needed in the embodiment is done simply below
Introduction.The accompanying drawings in the following description is only the embodiments of the present invention, is come for those of ordinary skill in the art
It says, without creative efforts, can also be obtained according to these attached drawings other accompanying drawings.
Fig. 1 is the front perspective view of new type grounding device provided by the utility model.
Fig. 2 is the rear perspective view of new type grounding device provided by the utility model.
Fig. 3 is stereogram of the new type grounding device provided by the utility model when front door is opened.
Fig. 4 is stereogram when new type grounding device provided by the utility model opens rear cover.
Fig. 5 is the partial enlarged view of first panel in new type grounding device provided by the utility model.
Fig. 6 is the stereogram of second panel in new type grounding device provided by the utility model.
Fig. 7 is the front perspective view of grounding switch in new type grounding device provided by the utility model.
Fig. 8 is the rear perspective view of grounding switch in new type grounding device provided by the utility model.
Fig. 9 is the vertical view of grounding switch in new type grounding device provided by the utility model.
Figure 10 is the schematic diagram of electrical verification mechanism controls grounding switch in new type grounding device provided by the utility model.
Figure 11 is the circuit diagram of electrical verification mechanism in new type grounding device provided by the utility model.
Reference sign：1, cabinet；2, front door；3, rear cover；4, operation panel；5, electrical verification mechanism；6, grounding assembly；7,
Switch regulatory agencies；8, camera；9, heating mechanism；10a, the first magnetic element；10b, the second magnetic element；11, pedestal；
12, spanner；21, the first watch window；22, the second watch window；23, storage box；41, first panel；42, second panel；43,
Third panel；43a, third watch window；44, fourth face plate；61, grounding switch；62, transmission mechanism；63, motor；64, stroke
Switch；65, cable accesses mechanism；71, manual mode gathering hole；72, electric model switch；73, lock knob；74, baffle；74a, lock
Hole；74b interferes block；611, first terminal；611a, the first insulator；612, Second terminal；612a, the second insulator；613,
Earthing；614, grounding switch mounting plate；621, first connecting rod；622, second connecting rod；623, drive shaft；623a, manual operation
Screw hole；624a, third insulator；624b, the 4th insulator；625, insulator support plate；651a, the first ground connection；
651b, the first contact net connector；652a, the second ground connection；652b, the second contact net connector；653, cable access
Case；654a, the 5th insulator；654b, the 6th insulator.
" specific implementation mode "
Below in conjunction with the accompanying drawings, the utility model is described in detail.
In order to make the purpose of this utility model, technical solution, advantage be more clearly understood, with reference to the accompanying drawings and embodiments
The present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain this
Utility model is not used to limit the utility model.
In conjunction with shown in Fig. 1 to Fig. 4, new type grounding device provided in this embodiment includes cabinet, operation panel 4, electricity-testing machine
Structure 5, grounding assembly 6.Cabinet includes cabinet 1, front door 2 and rear cover 3, front door 2 and rear cover 3 be separately mounted to the front end of cabinet 1 with
Rear end constitutes an assembly space together with cabinet 1.Operation panel 4 is set to interior of equipment cabinet front end, electrical verification mechanism 5 and ground connection group
Part 6 is set in cabinet, and positioned at the rear of operation panel 4.
As shown in figure 3, in the present embodiment, operation panel 4 from top to bottom sequence by first panel 41, second panel 42,
Third panel 43 and fourth face plate 44 form, and first panel 41, second panel 42, third panel 43 and fourth face plate 44
It is detachably connected by mechanical connection mechanism and cabinet 1 respectively, earthing or grounding means inside is overhauled and safeguarded to facilitate.
In other embodiment, operation panel may be to be integrally formed to make.It is provided on operation panel 4 for controlling earthing or grounding means work
The operating-controlling mechanism of work and corresponding control circuit；It is additionally provided on operation panel 4 for showing earthing or grounding means working condition and ring
The indication mechanism in border and corresponding display circuit.
Specifically, as shown in figure 5, the operating-controlling mechanism in first panel 41 includes：Switch knob, switch knob, separating brake are pressed
Button and self-test button；Indication mechanism in first panel 41 includes：Combined floodgate indicator light, electrification indicator light, loses separating brake indicator light
Electric indicator light, run indicator and voltage display screen.
Wherein, switch knob has long-range shelves and shelves on the spot, and when switch knob is switched to long-range shelves, operator is using remote
Send instructions control earthing or grounding means work under journey terminal；When switch knob is switched to shelves on the spot, operator passes through first panel 41
On switch knob, opening button and self-test button control earthing or grounding means work.Switch knob is respectively used to opening button
Electronic control grounding assembly 6 carries out closing operation and sub-switching operation on the spot.Combined floodgate indicator light shows ground connection group with separating brake indicator light
The working condition of part 6：When grounding assembly 6 is in "on" position, combined floodgate indicator light is bright；When grounding assembly 6 is in gate-dividing state
When, separating brake indicator light is bright.When earthing or grounding means works normally, one and only one lamp is bright with separating brake indicator light for combined floodgate indicator light.From
Inspection button is powered on for earthing or grounding means booting and self-test.Run indicator shows the power supply state of earthing or grounding means itself：Work as ground connection
When device charges, run indicator is bright；When earthing or grounding means powers off, run indicator is dark.When earthing or grounding means works normally, operation
Indicator light is bright, and in the present embodiment, the operating voltage of earthing or grounding means is 220V.It charges indicator light and shows electrical verification with dead electricity indicator light
Mechanism 5 carries out contact net the result of electrical verification (electrical verification principle is detailed below)：When contact net electrification, electrification indicator light is bright；When
When contact net powers off, dead electricity indicator light is bright.In this city embodiment, voltage when contact net electrification is 1500V, only contact net
Power-off, operator just can carry out ground connection operation to earthing or grounding means.Voltage display screen is for showing that contact net specifically charges electricity
Pressure.
As shown in fig. 6, the operating-controlling mechanism in second panel 42 includes：Air switch, heater switch, light switch, locking
Switch and switching regulatory agencies 7；Indication mechanism in first panel 41 includes：Temperature and humidity display.It is provided in this embodiment to connect
Ground device further includes heating mechanism 9, lighting mechanism, temperature sensing unit, humidity sensing unit (not shown), lighting mechanism peace
Mounted in the top of cabinet 1, for providing illumination to interior of equipment cabinet；Heating mechanism 9 is mounted on inside cabinet 1, for adjusting cabinet
Internal temperature and humidity.
Wherein, air switch is set on the operating circuit of earthing or grounding means, for preventing earthing or grounding means internal short circuits
And prevent operator from getting an electric shock.Light switch is for controlling lighting mechanism work, and heater switch is for controlling 9 work of heating mechanism
Make, locking switch is forbidden further operating earthing or grounding means for locking the current working condition of earthing or grounding means.It is warm and humid
Spend the temperature and humidity that display screen shows interior of equipment cabinet according to the signal that temperature sensing unit, humidity sensing unit acquire.Switching
Regulatory agencies 7 switch for management and control grounding assembly 6 between Electronic control pattern and MANUAL CONTROL mode, below in conjunction with ground connection
Component 6 is described in detail.
As shown in figure 3, offering the third observation panel 43a for directly observing the action of grounding assembly 6 on third panel 43.
In conjunction with shown in Fig. 1 and Fig. 3, the position of corresponding first panel 41 is provided with the first watch window 21, corresponding third observation on front door 2
The position of mouth 43a is provided with the second watch window 22.2 inside of front door is equipped with wall-mounted in the lower section of the second watch window 22
Storage box 23 is used for placement operation tool.In the present embodiment, storage box 23 is used to place pulling for manual operation grounding switch 61
Hand 12 (in conjunction with Fig. 7).As shown in Fig. 2, rear cover 3 and cabinet 1 are detachably connected, it is convenient that earthing or grounding means is safeguarded.This reality
Refer to that the object dismounting of two connections can be detached and can be weighed such as spanner 12 by tool with novel described being detachably connected
The connection (the same below) mounted and dismounted again.As shown in figure 3, by the first watch window 21 on front door 2, operator can see
Examine the operating-controlling mechanism and indication mechanism in first panel 41.
As shown in figure 4, electrical verification mechanism 5 and grounding assembly 6 are mounted on interior of equipment cabinet.In conjunction with shown in Fig. 7, Fig. 8 and Fig. 9, connect
Ground component 6 includes grounding switch 61, transmission mechanism 62, motor 63, travel switch 64, cable access mechanism 65, motor control electricity
Road and telecommunication circuit (not shown).Whether electrical verification mechanism 5 detects contact net voltage, charged as motor control according to contact net
Circuit processed provides enable signal or goes enable signal.Circuit for controlling motor controls motor in the state of enabled according to dependent instruction
63 action, instruction include the instruction of local operation switch knob, opening button, also include being received from telecommunication circuit
Teleinstruction further includes the signal of travel switch sensing.63 drive transmission device 62 of motor rotates, and then drives grounding switch 61
Combined floodgate or separating brake.
As shown in Figure 7, Figure 8, grounding switch 61 includes first terminal 611, Second terminal 612, earthing 613 and ground connection
Disconnecting link mounting plate 614.In the present embodiment, first terminal 611 and Second terminal 612 pass through the first insulator 611a and the respectively
Two insulator 612a are periodically installed on grounding switch mounting plate 614, and towards the side of rear cover 3.First terminal 611 and ground
Line cable is electrically connected, and Second terminal 612 is electrically connected with contact net cable；One end of earthing 613 is hinged with first terminal 611,
The end is known as hinged end, and the other end rotates under the drive of transmission mechanism 62, contacts or separates with Second terminal 612, which claims
For movable end.Earthing 613 realizes combined floodgate and separating brake by the rotation of movable end.In other embodiments, first terminal,
Two-terminal can also be mounted on side of the grounding switch mounting plate towards front door with earthing.
Transmission mechanism 62 include first connecting rod 621, second connecting rod 622, drive shaft 623, third insulator 624a, the 4th absolutely
Edge 624b and insulator support plate 625.Third insulator 624a and one end of the 4th insulator 624b are periodically installed at
On grounding switch mounting plate 614 above first insulator 611a and the second insulator 612a, third insulator 624a and the 4th
The other end of insulator 624b is equipped with insulator support plate 625.Drive shaft 623 rotationally, penetratingly be mounted on earthing
On lock mounting plate 614 and insulator support plate 625.One end of first connecting rod 621 is solid close to the one end at front door 2 with drive shaft 623
Fixed connection, the other end are fixedly connected with one end of second connecting rod 622.The other end of second connecting rod 622 is connect with earthing 613.
Motor 63 is mounted on grounding switch mounting plate 614 close to the side of rear cover 3, and power output end and the drive shaft 623 of motor 63 are driven
Dynamic cooperation.
As shown in fig. 7, in the present embodiment, drive shaft 623 is provided with manual operation counterpart close to the one end at front door 2
623a, specially spanner counterpart so that drive shaft 623 not only being rotated by motor 63, but also can be in hand
Dynamic operation instrument, for example, being rotated under the action of spanner 12.
It includes the first ground connection 651a, the first contact net connector 651b, the second ground wire company that cable, which accesses mechanism 65,
Fitting 652a, the second contact net connector 652b, cable access case 653, the 5th insulator 654a and the 6th insulator 654b.
Cable access case 653 is the babinet for including cable access window, is mounted on the lower section of grounding switch mounting plate 614, and cable connects
Enter window towards front door 2.First ground connection 651a and the first contact net connector 651b pass through the 5th insulator respectively
654a and the 6th insulator 654b, which runs through, to be arranged in the back plate that cable accesses case 653.First ground connection 651a, first connect
Net-fault connector 651b is grounded cable, contact net cable respectively close to the one end at front door 2, close to one end of rear cover 3 respectively with
One end electrical connection of second ground connection 652a, the second contact net connector 652b.Second ground connection 652a, second connect
The other end of net-fault connector 652b is electrically connected with first terminal 611, Second terminal 612 respectively.Operator can be from cabinet
Bottom or other positions access ground wire cable, contact net cable, make ground wire cable, contact net cable respectively with first terminal 611
Electrical connection, Second terminal 612 are electrically connected, more convenient operation.
In other embodiments, cable access case can be replaced with cable access board, at this point, the first ground connection and the
One contact net connector is run through by the 5th insulator and the 6th insulator respectively to be arranged on cable access board.First ground wire connects
Fitting, the first contact net connector are grounded cable, contact net cable respectively close to the one end at front door, close to one end of rear cover point
It is not electrically connected with one end of the second ground connection, the second contact net connector；Second ground connection, the second contact net
The other end of connector is electrically connected with first terminal, Second terminal respectively.In other embodiments, cable access mechanism does not include
Cable accesses case, cable access board, and the first ground connection and the first contact net connector pass through the 5th insulator and the respectively
Six insulators are through setting on the grounding switch mounting plate.First ground connection, the first contact net connector are by nearby
One end of door is grounded cable, contact net cable respectively, is contacted respectively with the second ground connection, second close to one end of rear cover
One end of net connector is electrically connected.Second ground connection, the second contact net connector the other end respectively with first terminal,
Two-terminal is electrically connected.But compared to cable access board and grounding switch mounting plate, the structure that cable accesses case is more firm.
In conjunction with shown in Fig. 9, in the present embodiment, the quantity of travel switch 64 is two, is separately mounted to drive shaft 623 or so
On the grounding switch mounting plate 614 of both sides, it is in the state of combined floodgate or separating brake for monitoring grounding disconnecting link 61, controls drive shaft
623 action.The principle of 64 monitoring grounding disconnecting link 61 of travel switch is：It is provided with protrusion in drive shaft 623, and protrusion can be with
Drive shaft 623 rotates；Drive shaft 623 drives first connecting rod 621 to be rotated clockwise with second connecting rod 622, until protrusion and one
Travel switch 64 just contacts, and when the trip switch 64 being made to close, earthing 613 completes separating brake, and motor 63 stops driving driving
Axis 623 rotates；Drive shaft 623 drives first connecting rod 621 to be rotated counterclockwise with second connecting rod 622, until protrusion and another row
Cheng Kaiguan 64 is just contacted, and when another travel switch being made to close, earthing 613 is completed to close a floodgate, and motor 63 stops driving driving
Axis 623 rotates.
Raised quantity can be one in drive shaft 623, at this point, two travel switches 64 are respectively at earthing 613
Position of the position where with the protrusion when completion separating brake of earthing 613 when completing to close a floodgate where the protrusion.Drive shaft 623 is convex
The quantity risen can also be two, and a travel switch 64 corresponds to a protrusion.
In other embodiments, the quantity of travel switch can be one, and quantity raised in drive shaft only has one at this time
It is a；When travel switch is closed, i.e., the protrusion in drive shaft is contradicted with travel switch, grounding switch is completed to close a floodgate；
When travel switch is in the open state, i.e., the protrusion in drive shaft is not contradicted with travel switch, grounding switch is in combined floodgate shape
State.
Earthing or grounding means provided in this embodiment further include include camera 8, in conjunction with shown in Fig. 7 and Figure 10, camera 8 install
Inside cabinet 1, the action of grounding switch 61 is shot, and uploads to remote terminal, facilitates remote real time monitoring grounding switch 61
Action.
It mentions above, grounding assembly is additionally provided with manual operation end other than can be with Electronic control, and the present embodiment passes through
Switch switching of the 7 management and control grounding assembly 6 of regulatory agencies between Electronic control pattern and MANUAL CONTROL mode.
As shown in fig. 6, switching regulatory agencies 7 are arranged on operation panel 4, including manual mode gathering hole 71, electronic mould
Formula switch 72, the lock knob 73 and baffle 74 being mounted on operation panel 4.The position that manual mode gathering hole 71 is arranged is and connects
Manual operation counterpart 623a on ground component 6 is corresponded to, and operator can utilize manual operation by manual mode gathering hole 71
Tool, if spanner 12 and manual operation counterpart 623a coordinate, driving drive shaft 623 rotates.In the present embodiment, it is manually operated
Second panel 42 on counterpart 623a respective operations panel 4, gathering hole 71 is arranged in second panel 42 in a manual mode for institute.
Electric model switch 72 is connected into circuit for controlling motor, and control circuit for controlling motor is closed or is disconnected (in conjunction with above, electricity
Machine control circuit is under the premise of closure also by the enabled control of electrical verification mechanism 5).When circuit for controlling motor is closed, motor control
Circuit processed controls the action that motor 63 drives drive shaft 623 according to specific control instruction；When circuit for controlling motor disconnects, motor
Control circuit is not responding to control instruction, at this point, drive shaft 623 can only be in hand-operated tools with manual operation counterpart 623a's
The lower rotation of transmission cooperation, i.e., can only be manually operated, be unable to electric operating.In the present embodiment, electric model switch 72 is that can stretch
The button of contracting；When electric model, which switchs, to bounce back, circuit for controlling motor is closed；When electric model, which switchs, to be stretched out, motor control
Circuit disconnects.In the present embodiment, electric model switch 72 is arranged in second panel 42.
The mode that one end of baffle 74 is hinged is mounted on operation panel 4, and the other end is by rotating closer or far from operation
The other end of baffle 74 is locked on operation panel 4 or is unlocked by panel 4, lock knob 73.Specifically, it is arranged on 74 other end of baffle
There is the lockhole 74a coordinated with lock knob 73.Lock knob 73 can be in and lockhole when baffle 74 is close to operation panel 4 by rotation
The position or non-engagement position of 74a engagings：When lock knob 73 is in the position engaged with the lockhole 74a, electric model switch
72 bounce back under the action of baffle 74, and circuit for controlling motor is closed, and baffle 74 blocks manual mode gathering hole 71, operator without
Method drives drive shaft 623 by manual mode gathering hole 71；When lock knob 73 is in the position non-engagement with lockhole 74a, electronic mould
Formula switch 72 stretches out, and circuit for controlling motor disconnects.When baffle 74 is opened, expose manual mode gathering hole 71, operator can lead to
It crosses manual mode gathering hole 71 and drives drive shaft 623.The earthing or grounding means of the utility model can only use electric operating or manually behaviour
Make, electric operating and manual operation cannot be carried out at the same time.
The tie point of baffle 74 and operation panel 4 is provided with interference block 74b.When lock knob 73 is from the position engaged with lockhole 74a
It sets when turning to the position non-engagement with lockhole 74a, interference block 74b provide elastic force, and the release of baffle 74 is made to switch electric model
72 block.
As shown in figure 3, in order to carry out management and control to front door 2, earthing or grounding means provided in this embodiment further includes electric-magnetic lock machine
Structure, the electric-magnetic lock mechanism (do not scheme including the first magnetic element 10a, the second magnetic element 10b and electromagnetic mechanism control circuit
Show).First magnetic element 10a is mounted on 2 inside of front door, and the second magnetic element 10b corresponds to the position peace of the first magnetic element 10a
On operation panel 4.Front door 2 can be attracted by the first magnetic element 10a and the second magnetic element 10b and be in shutdown shape
State, or detached in door opening state with the second magnetic element 10b by the first magnetic element 10a.
In the present embodiment, the second magnetic element 10b be automatically controlled magnetic cell, by earthing or grounding means power electromagnet, first
Magnetic element 10a is permanent magnet.Electromagnetic mechanism control circuit flows through the current strength of the second magnetic element 10b, control by control
Make the magnetic field intensity of the second magnetic element 10b.In other embodiments, the first magnetic element is to be magnetic when being powered, when power-off
Magnetism disappears, and the electromagnet powered by earthing or grounding means；Second magnetic element is permanent magnet；Electromagnetic mechanism control circuit passes through control
System flows through the current strength of the first magnetic element, controls the magnetic field intensity of the first magnetic element 10a.In other embodiments,
One magnetic element is magnetic when can be energization with the second magnetic element, and magnetism disappears when power-off, and is powered by earthing or grounding means
Electromagnet；Electromagnetic mechanism control circuit flows through the current strength of the first magnetic element and the second magnetic element, control by control
Make the magnetic field intensity of the first magnetic element and the second magnetic element.
In the present embodiment, when earthing or grounding means charges, control the second magnetic element 10b electrifications of electromagnetic mechanism control circuit have magnetic
Property, it is attracted with the first magnetic element 10a, front door 2 is closed, and operator can not open front door 2, or, electromagnetic mechanism control circuit
It controls the second magnetic element 10b magnetic field intensities decrease or magnetic field disappears so that operator can open front door 2；Earthing or grounding means
When power-off, the magnetic field of the second magnetic element 10b directly disappears, and can not be attracted with the first magnetic element 10a, front door 2 is opened.Currently
When door 2 is opened, operator can be with local operation earthing or grounding means.
As shown in figure 3, in the present embodiment, the second magnetic element 10b is mounted in second panel 42, the first magnetic element
10a is mounted on position corresponding with the second magnetic element 10b on front door 2.In other embodiments, the second magnetic element can also
Other regions on operation panel, the first magnetic element are mounted on position corresponding with the second magnetic element on front door.
As shown in Figure 10, electrical verification mechanism 5 detects contact net voltage, sends enable signal according to testing result or removes enabled letter
Number give circuit for controlling motor.When electrical verification mechanism 5 detects contact net electrification, circuit for controlling motor goes to enable, and cannot accordingly control
System instruction, operator can not drive grounding switch 61 by remote electric, also can not electric drive grounding switch 61 on the spot；When testing
When motor structure 5 detects contact net without electricity, circuit for controlling motor is enabled, can corresponding control instruction, to driving motor 63
Grounding switch 61 is driven to act.
As shown in figure 11, in the present embodiment, the circuit of electrical verification mechanism 5 include two groups of series resistance groups being connected in parallel with
And voltage detection module.Every group of series resistance group includes first resistor R1 and second resistance R2, the termination contacts of first resistor R1 mono-
Net anode, the other end are electrically connected with one end of second resistance R2；Another termination contact net cathode of second resistance R2, voltage detecting
Module acquires the voltage at the both ends second resistance R2.According to the partial pressure relationship of second resistance R2 and first resistor R1, voltage detecting mould
Block obtains contact net voltage UIt connects.At this point, contact net voltage UIt connects=UR2* (R1+R2)/R2, wherein UIt connectsFor contact net voltage value, UR2
For the voltage value at the both ends second resistance R2, R1 is the resistance value of first resistor R1, and R2 is the resistance value of second resistance R2.
As shown in figure 11, in the present embodiment, electrical verification mechanism 5 uses the two groups of series resistance group being connected in parallel acquisitions two
Group contact net voltage.Even if there is one group of series resistance group to break down, electrical verification mechanism 5 may be used another group of series resistance group and adopt
The contact net voltage of collection is detected.Compared to the electrical verification mechanism for acquiring contact net voltage only with one group of series resistance group, use
Multigroup series resistance group acquires the electrical verification mechanism of multigroup contact net voltage, and electrical verification result is more acurrate.In other embodiments, electrical verification
The group number of series resistance group can be other numerical value, such as three in mechanism, four ... ..., can be set according to actual needs
It is fixed.
In the present embodiment, electrical verification mechanism 5 also sends control signal and gives electromagnetic mechanism control circuit, controls the second magnetic element
The magnetic field intensity of 10b：When electrical verification mechanism 5 detects contact net electrification, electrical verification mechanism 5 sends control signal to the second magnetic member
Part 10b, the second magnetic element 10b electrifications are magnetic, and front door 2 is closed, and operator cannot open front door 2 and be carried out in situ
Ground connection operation, ensures in contact net electrification, operator is unable to operational grounding device, safer；When electrical verification, mechanism detects
When contact net powers off, electromagnetic mechanism control circuit can be weakened or disappeared by the magnetic field intensity of the second magnetic element 10b of control,
Front door 2 is opened, operator can carry out electric operating on the spot or be manually operated on the spot.
In the present embodiment, there are three types of the modes of 61 combined floodgates of operator's control grounding switch/separating brake：The electronic behaviour of remote terminal
Make, electric operating and be manually operated on the spot on the spot.
The principle of 61 combined floodgates of remote terminal operational grounding disconnecting link/separating brake is as follows：Electrical verification mechanism 5 detects that contact net powers off
Afterwards, it sends enable signal and to circuit for controlling motor and notifies remote terminal；Remote terminal sends instructions to circuit for controlling motor, control
Motor 63 processed works；When needing to close a floodgate, remote terminal sends reclosing command to circuit for controlling motor, circuit for controlling motor control electricity
Machine 63 drives drive shaft 623 to rotate clockwise, and drive shaft 623 drives first connecting rod 621, first connecting rod 621 to drive second connecting rod
622, second connecting rod 622 pulls the movable end of earthing 613 to be contacted with first terminal 611, and grounding switch 61 is completed to close a floodgate；It needs
When combined floodgate, remote terminal sends separating brake and instructs to circuit for controlling motor, and circuit for controlling motor controls motor 63 and drives drive shaft 623
Rotation counterclockwise, drive shaft 623 drive first connecting rod 621, first connecting rod 621 that second connecting rod 622, second connecting rod 622 is driven to draw
The movable end of dynamic earthing 613 is detached with first terminal 611, and grounding switch 61 completes separating brake.
The principle of 61 combined floodgates of electric operating grounding switch/separating brake is as follows on the spot：Electrical verification mechanism 5 detects that contact net powers off
When, intelligent signal is sent to circuit for controlling motor, and the dead electricity indicator light on operation panel 4 is bright；When operator presses switch knob
When, circuit for controlling motor control motor driving drive shaft 623 rotates clockwise, the drive first connecting rod 621 of drive shaft 623, and first
Connecting rod 621 drives second connecting rod 622, second connecting rod 622 that the movable end of earthing 613 is pulled to be contacted with first terminal 611, is grounded
Disconnecting link 61 is completed to close a floodgate；When operator presses opening button, circuit for controlling motor controls motor 63 and drives 623 inverse time of drive shaft
Needle rotates, and drive shaft 623 drives first connecting rod 621, first connecting rod 621 that second connecting rod 622, the pulling of second connecting rod 622 is driven to connect
The movable end of earthing knife-switch 613 is detached with first terminal 611, and grounding switch 61 completes separating brake.
The principle of 61 combined floodgates of manual operation grounding switch/separating brake is as follows on the spot：Electrical verification mechanism 5 detects that contact net powers off
When, enable signal is sent to earthing or grounding means, and the dead electricity indicator light on operation panel 4 is bright；Electromagnetic mechanism control circuit control second
Magnetic element 10b magnetism weakens or disappears, and operator can overcome between the first magnetic element 10a and the second magnetic element 10b
Magneticaction, open front door 2, rotate lock knob 73, so that lock knob 73 is in the position non-engagement with lockhole 74a, baffle 74 is done
It relates to block 74b to flick, operator can carry out being grounded operation manually by manual mode gathering hole 71.
When earthing or grounding means powers off, the run indicator on earthing or grounding means is dark, and the electric current for flowing through the second magnetic element 10b is
The magnetic of zero, the second magnetic element 10b disappears, and front door 2 is opened, and operator can be manually operated on the spot.At this point, ground connection dress
Power-off is set, motor 63 can not be run, so, operator can not carry out electric operating on the spot.
The above is only the preferred embodiment of the utility model, and the scope of protection of the utility model is not limited merely to
Embodiment is stated, technical solution belonging to the idea of the present invention belongs to the scope of protection of the utility model.It should be pointed out that
For those skilled in the art, several improvements and modifications without departing from the principles of the present invention, this
A little improvements and modifications also should be regarded as the scope of protection of the utility model.
Claims (18)
1. a kind of new type grounding device, including cabinet and grounding assembly；The grounding assembly is set in the cabinet, described to connect
Ground component includes grounding switch, transmission mechanism, motor, cable access mechanism, and the grounding switch includes first terminal, second end
Power grid cables and ground wire cable are respectively connected to the first terminal and second end by son and earthing, the cable access mechanism
Son, the motor drive the transmission mechanism that the earthing is driven to connect or disconnect the first terminal and Second terminal；Its
It is characterized in that：The new type grounding device further includes electrical verification mechanism and circuit for controlling motor, and the circuit for controlling motor has and makes
Energy control terminal and control instruction receiving terminal, the electrical verification mechanism have voltage detecting end and electrical verification result output end, the voltage
Power grid cables voltage is detected in test side, and the electrical verification result output end provides enabled letter for the enabled control terminal of circuit for controlling motor
Number or go enable signal.
2. new type grounding device according to claim 1, which is characterized in that the electrical verification mechanism includes at least one set of connects
Resistance group and voltage detection module；Every group of series resistance group includes first resistor R1 and second resistance R2, first resistor R1 mono-
Power grid anode is terminated, the other end is electrically connected with one end of second resistance R2；The other end of second resistance R2 gets access to grid cathode, voltage
Detection module acquires the voltage at the both ends second resistance R2, and power grid is obtained according to the partial pressure relationship of second resistance R2 and first resistor R1
Voltage UIt connects。
3. new type grounding device according to claim 1, which is characterized in that the grounding switch further includes the first insulation
Son, the second insulator and grounding switch mounting plate；The first terminal is exhausted by described first respectively with the Second terminal
Edge is periodically installed at the second insulator on grounding switch mounting plate；One end of the earthing is hinged with first terminal,
The other end is contacted or is detached with the Second terminal under the drive of the transmission mechanism.
4. new type grounding device according to claim 3, which is characterized in that the transmission mechanism includes first connecting rod,
Two connecting rods and drive shaft；The drive shaft is installed in rotation on the grounding switch mounting plate；The first connecting rod
One end is connect for one with the drive shaft, and the other end is connect with one end of the second connecting rod；The other end of the second connecting rod
It is connect with the earthing；The other end of the drive shaft is connect with the power output end of the motor.
5. new type grounding device according to claim 4, which is characterized in that the transmission mechanism further includes third insulation
Son, the 4th insulator and insulator support plate；The third insulator and the 4th insulator are periodically installed at grounding switch
Between mounting plate and insulator support plate；The drive shaft rotationally, is penetratingly mounted on grounding switch mounting plate and insulate
In sub- support plate.
6. new type grounding device according to claim 4, which is characterized in that the grounding assembly further includes travel switch,
The trigger mechanism of the travel switch is set to the activity interval of the drive shaft, first connecting rod, second connecting rod or earthing
Agretope, the control instruction receiving terminal of the signal output end connection circuit for controlling motor of the travel switch.
7. new type grounding device according to claim 1, which is characterized in that the grounding assembly further includes camera, if
It is placed in the cabinet, the investigative range of the camera covers the scope of activities of the earthing, the signal output of the camera
One remote terminal of end connection.
8. new type grounding device according to claim 3, which is characterized in that cable access mechanism includes the first ground wire
Connector, the first power grid connector, the second ground connection, the second power grid connector, the 5th insulator and the 6th insulator；Institute
It states the first ground connection and setting is run through described by the 5th insulator and the 6th insulator respectively with the first power grid connector
On grounding switch mounting plate；One end of first ground connection, the first power grid connector one end be grounded respectively cable,
Power grid cables, one end of first ground connection, the first power grid connector the other end respectively with the second ground connection
One end, the second power grid connector one end electrical connection；The other end of second ground connection, the second power grid connector
The other end is electrically connected with the first terminal, Second terminal respectively.
9. new type grounding device according to claim 3, which is characterized in that cable access mechanism includes the first ground wire
Connector, the first power grid connector, the second ground connection, the second power grid connector, the 5th insulator, the 6th insulator and electricity
Cable access board；The cable access board is mounted on the lower section of grounding switch mounting plate；First ground connection and the first electricity
Net connector is run through by the 5th insulator and the 6th insulator respectively to be arranged on the cable access board；First ground wire
One end of connector, the first power grid connector one end be grounded cable, power grid cables respectively, first ground connection
The other end, the first power grid connector the other end respectively with one end of the second ground connection, one end of the second power grid connector
Electrical connection；The other end of second ground connection, the second power grid connector the other end respectively with first terminal, second end
Son electrical connection.
10. new type grounding device according to claim 3, which is characterized in that the cable accesses mechanism including the first
Wire connections, the first power grid connector, the second ground connection, the second power grid connector, cable access case, the 5th insulator with
And the 6th insulator；The cable access case is the babinet for including cable access window, is mounted under grounding switch mounting plate
Side；First ground connection and the first power grid connector are respectively by the 5th insulator and the 6th insulator through setting institute
On the side opposite with side window for stating cable access case；One end of first ground connection, the first power grid connect
One end of fitting is grounded cable, power grid cables respectively, the other end of first ground connection, the first power grid connector
The other end is electrically connected with one end of one end of the second ground connection, the second power grid connector respectively；The second ground wire connection
The other end of part, the second power grid connector the other end be electrically connected respectively with first terminal, Second terminal.
11. new type grounding device according to claim 4, which is characterized in that the new type grounding device further includes operation
Panel, the operation panel are set to the interior of equipment cabinet front end, and the electrical verification mechanism and grounding assembly are set to the operation panel
Rear；The operating-controlling mechanism for controlling new type grounding device work and corresponding manipulation electricity are provided on the operation panel
Road；The indication mechanism for showing new type grounding device working condition and corresponding display electricity are additionally provided on the operation panel
Road.
12. new type grounding device according to claim 11, which is characterized in that the manipulation machine being arranged on the operation panel
Structure includes switch knob, opening button, switch knob, opening button the instruction output end of corresponding control circuit connect the electricity
The control instruction receiving terminal of machine control circuit；The indication mechanism being arranged on the operation panel includes that combined floodgate indicator light, separating brake refer to
Show lamp, electrification indicator light, dead electricity indicator light and voltage display screen；The corresponding display circuit point of combined floodgate indicator light, separating brake indicator light
The instruction output end of control circuit not corresponding to switch knob, opening button connects, electrification indicator light, dead electricity indicator light and voltage
The corresponding display circuit of display screen is connect with the electrical verification result output end of the electrical verification mechanism.
13. new type grounding device according to claim 12, which is characterized in that the grounding assembly further include for and it is remote
The telecommunication circuit of journey terminal communication connection, the control instruction receiving terminal of the telecommunication circuit and the circuit for controlling motor
And the electrical verification result output end connection of the electrical verification mechanism.
14. new type grounding device according to claim 13, which is characterized in that the manipulation machine being arranged on the operation panel
Structure includes switch knob, and the switch knob is in a manner of switching or by switch knob, the corresponding control circuit of opening button
Instruction output end is connect with the control instruction receiving terminal of the circuit for controlling motor, or by telecommunication circuit and the motor
The control instruction receiving terminal of control circuit connects.
15. new type grounding device according to claim 11, which is characterized in that the drive shaft towards operation panel one
End is fixedly installed manual operation counterpart；The new type grounding device further includes switching regulatory agencies, the switching regulatory agencies
Including electric model switch, manual mode gathering hole and the blocking mechanism being set on the operation panel, electric model switch
It concatenates the circuit for controlling motor and controls circuit for controlling motor and be closed or disconnect, the position of manual mode gathering hole setting and institute
The position for stating manual operation counterpart is adapted；Blocking mechanism blocks the electric model switch and manual mode operation when being latched
Mouthful, when unlock, exposes the electric model switch and manual mode gathering hole.
16. new type grounding device according to claim 15, which is characterized in that the electric model switch is telescopic
Button；When the electric model switch retraction, the circuit for controlling motor is closed；It is described when the electric model switch stretches out
Circuit for controlling motor disconnects；The blocking mechanism includes lock knob and baffle, and one end of baffle is articulated on operation panel, the other end
It opens or closes；The other end of baffle is locked on operation panel or is unlocked by lock knob, and electric model switch is in baffle when locking
It bounces back under counter-active effect, when baffle is opened, electric model switchs auto-extending, and exposes manual mode gathering hole.
17. new type grounding device according to claim 16, which is characterized in that the cabinet include cabinet, front door and after
Lid, front door are separately mounted to the front and rear end of cabinet with rear cover；It offers on the operation panel and is grounded for directly observing
The third observation panel of component action；The first observation window for observing the operating-controlling mechanism and indication mechanism is provided on the front door
Mouthful, the position of corresponding third observation panel is provided with the second watch window on the front door.
18. new type grounding device according to claim 17, which is characterized in that the new type grounding device further includes electromagnetism
Blocking mechanism；The electric-magnetic lock mechanism include be mounted on front door towards cabinet interior side the first magnetic element, be mounted on
Second magnetic element and electromagnetic mechanism control circuit of the operation panel towards side outside cabinet；The electromagnetic mechanism control electricity
Road controls magnetic intensity or the direction of the first magnetic element and/or the second magnetic element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820513420.3U CN208015083U (en) | 2018-04-10 | 2018-04-10 | A kind of new type grounding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820513420.3U CN208015083U (en) | 2018-04-10 | 2018-04-10 | A kind of new type grounding device |
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| Publication Number | Publication Date |
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| CN208015083U true CN208015083U (en) | 2018-10-26 |
Family
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| CN201820513420.3U Active CN208015083U (en) | 2018-04-10 | 2018-04-10 | A kind of new type grounding device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114089180A (en) * | 2021-11-19 | 2022-02-25 | 中国南方电网有限责任公司超高压输电公司广州局 | Device, method and system for monitoring opening and closing of disconnecting link and computer readable storage medium |
| CN114221302A (en) * | 2021-12-08 | 2022-03-22 | 聊城市鲁西化工工程设计有限责任公司 | Automatic operation system and method for power distribution cabinet |
| CN117080010A (en) * | 2023-08-24 | 2023-11-17 | 北京中航万通机电工程股份有限公司 | Visualized automatic grounding system of contact net and control method |
-
2018
- 2018-04-10 CN CN201820513420.3U patent/CN208015083U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114089180A (en) * | 2021-11-19 | 2022-02-25 | 中国南方电网有限责任公司超高压输电公司广州局 | Device, method and system for monitoring opening and closing of disconnecting link and computer readable storage medium |
| CN114089180B (en) * | 2021-11-19 | 2024-04-02 | 中国南方电网有限责任公司超高压输电公司广州局 | Knife switch opening and closing monitoring equipment, method, system and computer readable storage medium |
| CN114221302A (en) * | 2021-12-08 | 2022-03-22 | 聊城市鲁西化工工程设计有限责任公司 | Automatic operation system and method for power distribution cabinet |
| CN117080010A (en) * | 2023-08-24 | 2023-11-17 | 北京中航万通机电工程股份有限公司 | Visualized automatic grounding system of contact net and control method |
| CN117080010B (en) * | 2023-08-24 | 2024-06-04 | 北京中航万通机电工程股份有限公司 | Visualized automatic grounding system of contact net and control method |
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