CN209311602U - A kind of remote-controlled switchgear AC and DC pressure regulation instruction carriage - Google Patents
A kind of remote-controlled switchgear AC and DC pressure regulation instruction carriage Download PDFInfo
- Publication number
- CN209311602U CN209311602U CN201822170442.7U CN201822170442U CN209311602U CN 209311602 U CN209311602 U CN 209311602U CN 201822170442 U CN201822170442 U CN 201822170442U CN 209311602 U CN209311602 U CN 209311602U
- Authority
- CN
- China
- Prior art keywords
- voltage
- phase
- output
- remote
- control circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Control Of Electrical Variables (AREA)
Abstract
Present disclose provides a kind of remote-controlled switchgears to hand over, direct current voltage reulation instruction carriage, it is characterized by comprising voltage follower circuits, voltage output control circuit and remote control circuit, the voltage follower circuit includes a three-phase regulator, the three-phase regulator input terminal is connected after overprotection is always spaced apart with three-phase and four-line AC power source, the three-phase regulator is set there are two output end, described two output ends one of them be three phase ac voltage regulation output, another exports adjustable dc voltage after being connected with three-phase bridge rectification and capacitor filtering circuit, the voltage output control circuit is connected by relay with voltage follower circuit, the remote control circuit carries out control mode switch by change-over switch and voltage output control circuit.The disclosure can save reviewer's time and reduce inspector from instruction carriage power transmission, to switchgear before debug, finally again return instruction carriage power-off walking distance, also ensure that the timely power failure that emergency situations are encountered during doing experiment.
Description
Technical field
This disclosure relates to switchgear pressure regulation test field more particularly to a kind of remote-controlled switchgear AC and DC tune
Press instruction carriage.
Background technique
Switchgear pressure regulation instruction carriage is that manufacturer is used to carry out energizing test to its indices before switchgear factory
Necessaries, it can provide various AC and DC power supplys, detect to switchgear.The energizing test of switchgear, generally requires
Breaking-closing operating is carried out to each phase power supply on instruction carriage manually, and remote control can not be carried out, is used and inconvenient.For
Save reviewer's time and reduce inspector from instruction carriage power transmission, to switchgear before debug, it is disconnected finally to return to instruction carriage again
The walking distance of electricity.Also ensure that the timely power failure that emergency situations are encountered during doing experiment.
Utility model content
In order to solve the deficiencies in the prior art, present disclose provides a kind of remote-controlled switchgear AC and DC pressure regulation
Instruction carriage increases remote control technology to it, keeps inspector remote by improving to existing AC and DC pressure regulation instruction carriage
The on-off of process control switchgear experiment power supply, effective guarantee worker safety and switchgear checkability.
To achieve the goals above, the technical solution of the disclosure is as follows:
A kind of remote-controlled switchgear AC and DC pressure regulation instruction carriage, including the control of voltage follower circuit, voltage output
Circuit and remote control circuit, the voltage follower circuit include a three-phase regulator, and the three-phase regulator input terminal passes through
Protection always be spaced apart after is connected with three-phase and four-line AC power source, the three-phase regulator set there are two output end, described two outputs
Hold one of them for three phase ac voltage regulation output, another exports adjustable after being connected with three-phase bridge rectification and capacitor filtering circuit
DC voltage, the voltage output control circuit are connected by relay with voltage follower circuit, and the remote control circuit is logical
It crosses change-over switch and voltage output control circuit carries out control mode switch.
Further, the voltage follower circuit is additionally provided with the nonadjustable multichannel three-phase voltage output of voltage and single-phase voltage
Output.
Further, breaker is equipped in every road output of the voltage follower circuit and relay normally open contact is opened
It closes, is wherein three-phase ganged breaker in parallel and three-phase ganged relay in parallel in three-phase output and adjustable dc voltage output
Device normally opened contact switch.
Further, the output voltage range of the three phase ac voltage regulation is 0~450vAC, the adjustable dc voltage
Output voltage range is 0~400vDC.
Further, the output end of the three-phase and four-line AC power source is equipped with breaker and current transformer, the electric current
Mutual inductor judges whether to overload for measuring whole all current conditions of instruction carriage.
Further, the protection is always spaced apart three-phase ganged breaker in parallel and three-phase ganged in parallel including being sequentially connected
Relay normally open contact switch.
Further, the voltage output control circuit includes multiple relay contact reset coils, and is turned with contact
The connected remote control contact of emat coil, local conducting button and local cut-off push button, wherein the remote control contact and this
Ground conducting button is directly connected by conducting wire with contact reset coil, the local cut-off push button by relay normally open contact with
Relay normally closed contact is connected with contact reset coil.
Further, the change-over switch includes the first change-over switch and the second change-over switch, first change-over switch
It is set on the circuit that local conducting button and local cut-off push button are connected with power supply, second change-over switch is set to remotely
On the circuit that remote control circuit is connected with power supply.
Further, the remote control circuit includes Multi-way remote control output control circuit, every road remote control output control electricity
Road controls the output voltage of voltage follower circuit all the way.
Further, a relay coil, the relay coil are equipped on remote control output control circuit described in every road
For controlling the on-off of the contact reset coil of the voltage output control circuit when remote state.
Compared with prior art, the beneficial effect of the disclosure is:
Save reviewer's time and reduce inspector from instruction carriage power transmission, to switchgear before debug, finally return again
The walking distance of instruction carriage power-off, also ensures that the timely power failure that emergency situations are encountered during doing experiment.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present application, and the application's shows
Meaning property embodiment and its explanation are not constituted an undue limitation on the present application for explaining the application.
Fig. 1 is a major loop structure figure of disclosure AC and DC pressure regulation instruction carriage；
Fig. 2 be disclosure AC and DC pressure regulation instruction carriage on the spot, remote operation circuit structure diagram；
Fig. 3 is disclosure AC and DC pressure regulation instruction carriage electric current show circuit, wherein (a) is total current measurement display, (b)
It measures and shows for AC voltage adjusting loop current, (c) current measurement is shown all the way for three-phase 380vAC output, (d) is single-phase
220vAC output loop current measurement is shown；
Fig. 4 is that disclosure AC and DC pressure regulation instruction carriage voltage show circuit (a) therein is total voltage measurement display, (b)
It measures and shows for AC voltage adjusting loop voltage, (c) voltage measurement is shown all the way for three-phase 380vAC output, (d) is single-phase
220vAC output loop voltage measurement is shown, is (e) the measurement display of direct current voltage reulation loop voltage；
Fig. 5 is disclosure indicator light circuit figure；
Fig. 6 is disclosure multifunctional meter power circuit diagram.
Specific embodiment
The disclosure is described further with specific embodiment with reference to the accompanying drawing.
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless another
It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
In the disclosure, term for example "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", " side ",
The orientation or positional relationship of the instructions such as "bottom" is to be based on the orientation or positional relationship shown in the drawings, only to facilitate describing this public affairs
The relative for opening each component or component structure relationship and determination, not refers in particular to either component or element in the disclosure, cannot understand
For the limitation to the disclosure.
In the disclosure, term such as " affixed ", " connected ", " connection " be shall be understood in a broad sense, and indicate may be a fixed connection,
It is also possible to be integrally connected or is detachably connected；It can be directly connected, it can also be indirectly connected through an intermediary.For
The related scientific research of this field or technical staff can determine the concrete meaning of above-mentioned term in the disclosure as the case may be,
It should not be understood as the limitation to the disclosure.
Fig. 1 show a major loop structure figure of disclosure pressure regulation instruction carriage, including input power route A, B, C and N,
Wherein power circuit A, B and C is equipped with circuit breaker Q F0 and Current Transmit A1, CTB1 and CTC1, and circuit breaker Q F0 is used for
The closure of power circuit is controlled, protection power source line security, Current Transmit A1, CTB1 and CTC1 are for measuring whole test
All current conditions of vehicle, judge whether to overload.
It in specific implementation, is come out from Current Transmit A1, CTB1 and CTC1, circuit is divided into multiple output ends, including three
0~450vAC of phase output, adjustable DC export, three road three-phase 380vAC (can be tested with more low-voltage cabinets) are exported and single-phase
220vAC output.
Three road three-phase 380vAC include three-phase 380vAC output three, three-phase 380vAC output two and three-phase 380VAC output
One, three-phase 380vAC output three includes that setting is connected in series as three-phase 380VAC output two is in circuit setting structure
Breaker and relay normally open contact switch, relay normally open contact switch for four contact switch wherein three touchings
Point is set on power input route A, B, C by linkage；And three-phase 380VAC output one further includes electric current in circuit setting
Mutual inductor CTA3, CTB3 and CTC3, Current Transmit A3, CTB3 and CTC3 are used to circuit primary current being converted to secondary electricity
Stream is used for measuring.
Circuit breaker Q F4 is successively arranged on the power circuit being connected with 0~450vAC of three-phase output, relay normally open contact is opened
KM4, variable inductor, circuit breaker Q F5, relay normally open contact switch KM5 and Current Transmit A2, CTB2 and CTC2 are closed,
The voltage of input power can be made to convert by above-mentioned setting, and adjustable in 0~450VAC, meet switchgear voltage detecting use.
Adjustable DC outlet line includes the circuit breaker Q F6, relay normally open contact switch KM6 and three-phase being sequentially connected in series
Bridge rectifier and capacitor filtering circuit, circuit breaker Q F6 are connected with variable inductor, and variable inductor passes through relay normally open at this time
Contact switch KM4 ' carries out on-off control, and relay normally open contact switch KM4 ' is in parallel with relay normally open contact switch KM4, after
Electric appliance normally opened contact switch KM6 is connected with the bridge arm midpoint in three-phase bridge rectification and capacitor filtering circuit respectively by route, and three
Phase bridge rectifier and capacitor filtering circuit are equipped with output lead, adjustable dc voltage are exported, in the range of 0~400vDC.
Single-phase 220VAC is exported, and is successively set on the route that input terminal is connected with power circuit A and N, and is connected with A route
There are circuit breaker Q F7, relay normally open contact switch KM7 and Current Transmit 1.
In specific implementation, each route of output end passes through connecting terminal and is connected with external equipment.
Relay normally open contact switch KM4, relay normally open contact switch KM5 and relay normally open contact switch KM6 are equal
For wherein three contacts of four contact switch, power input line road is set to by linkage.
Fig. 2 be disclosure direct current voltage reulation instruction carriage on the spot, remote operation circuit structure diagram.As seen from the figure, which includes
Major loop and remote operation circuit two parts, wherein major loop is the control circuit of each output circuit, the contact including relay
Reset coil, and be connected with the remote control that contact reset coil is separately connected, break contact, it is local that button, and this is connected
Ground cut-off push button；
It is connected with remote control, break contact and local conducting button are directly connected not with contact reset coil by conducting wire
Together, relay normally open contact is also successively arranged on the route that local cut-off push button is connected with contact reset coil and relay is normally closed
Contact, relay normally open contact are another point in four contacts of Fig. 1 corresponding relay normally open contact switch, when work, four
A contact simultaneously operation, three contacts are to power on, and individual contact is in order to for showing corresponding contact conversion
Whether coil has acted, and whether corresponding circuit is charged, and relay normally closed contact is for closing a floodgate when in remote control mode
When, power-off releases the self-sustaining of corresponding contact reset coil；
Specifically, Fig. 2 medium-long range remote control conducting, break contact KM11, KM12, KM13, KM14, KM15 and KM16, this
Ground be connected button be SB1, SB2, SB3, SB4, SB5 and SB6, local cut-off push button be SB11, SB12, SB13, SB14, SB15 and
SB16, contact reset coil are KM1, KM2, KM3, KM4, KM5, KM4 with box ', KM6 and KM7.
Remote operation circuit includes remote control module, remote control module be equipped with remote control all the way, it is two tunnels of remote control, three tunnels of remote control, distant
Six tunnels of four tunnels, five roads of remote control and remote control are controlled, are respectively used to remote control three-phase 380vAC output one, three-phase 380vAC exports two, three-phase
380vAC output three, 0~450vAC of three-phase output, adjustable DC output and single-phase 220vAC output.
In specific implementation, it is respectively equipped with relay coil on each keying line, when which is used for remote state, is led back
The on-off of road contact reset coil.
Specifically, relay coil is KM11, KM12, KM13, KM14, KM15 and KM16 with box in Fig. 2.
In the disclosure, major loop and remote operation circuit are by change-over switch progress control mode switch, such as the middle ZK of Fig. 2
2., when change-over switch is located at regard to position, 1. 2. ZK is connected, 3. 4. ZK is disconnected, at this time remote control module 1. 3. 4. shown with ZK
Power supply disconnects, and is unable to remote control operation, is only capable of being connected and cut-off push button operating operation test vehicle by instruction carriage ontology.When change-over switch position
When remote control position, 3. 4. ZK is connected, 1. 2. ZK is disconnected, and remote control module power supply obtains electric at this time, is only capable of being remotely controlled operation, test
The conducting of vehicle ontology is disconnected with cut-off push button operation power, not can be carried out local operation.
Fig. 3 is disclosure AC and DC pressure regulation instruction carriage electric current show circuit, wherein (a) is total current measurement display, (b)
It measures and shows for AC voltage adjusting loop current, (c) current measurement is shown all the way for three-phase 380vAC output, (d) is single-phase
220vAC output loop current measurement is shown.
Fig. 4 is disclosure AC and DC pressure regulation instruction carriage voltage show circuit therein, wherein (a) is that total voltage measurement is aobvious
Show, is (b) the measurement display of AC voltage adjusting loop voltage, (c) voltage measurement is shown all the way for three-phase 380vAC output, (d) is single
Phase 220vAC output loop voltage measurement is shown, is (e) the measurement display of direct current voltage reulation loop voltage.
Each outlet line and power circuit of the disclosure are additionally provided with corresponding indicator light and multifunctional meter power supply, circuit
Figure is as shown in Figure 5 and Figure 6, according to the working condition and power conditions of the corresponding indicator light output circuit.
The test operation process of the disclosure are as follows:
QF1-QF10 is to be spaced apart inside instruction carriage, in an ON state.
When doing experiment, QF0 is connected, change-over switch is got to local operation mode, is output three-phase when pressing SB1
380vAC is exported all the way, is pressed SB11 and is broken three-phase 380VAC output all the way.It is output three-phase 380vAC defeated when pressing SB2
Two tunnel out presses SB12 and breaks two tunnels of three-phase 380vAC output.It is that output three-phase 380vAC exports three tunnels when pressing SB3,
It presses SB13 and breaks three tunnels of three-phase 380vAC output.It is output 0~450vAC of three-phase output when pressing SB4, presses SB14
Break 0~450vAC of three-phase output.It is output adjustable DC output when pressing SB5, presses SB15 and break adjustable DC
Output.As output single-phase 220vAC is exported when pressing SB6, is pressed SB16 and is broken single-phase 220vAC output.
Change-over switch is got to remote control operation mode, pressing when remote controler is opened all the way is output three-phase 380vAC output one
Road presses remote controler and breaks both broken three-phase 380vAC output all the way all the way.Pressing when two tunnel of remote controler is opened is output three-phase
380vAC exports two tunnels, presses the disconnected three-phase 380VAC that both broken in two tunnel of remote controler and exports two tunnels.It presses when three tunnel of remote controler is opened i.e.
Three tunnels are exported for output three-phase 380vAC, the disconnected three-phase 380vAC that both broken in three tunnel of remote controler is pressed and exports three tunnels.Press remote controler
It is output 0~450vAC of three-phase output when four tunnels are opened, presses disconnected both broken 0~450vAC of the three-phase output in four tunnel of remote controler.It presses
It is output adjustable DC output when lower five tunnel of remote controler is opened, presses the disconnected both broken adjustable DC output in five tunnel of remote controler.It presses
As output single-phase 220vAC is exported when six tunnel of remote controler is opened, and presses that six tunnel of remote controler is disconnected both to have broken single-phase 220vAC output.
The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field
For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair
Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.
Although above-mentioned be described in conjunction with specific embodiment of the attached drawing to the disclosure, model not is protected to the disclosure
The limitation enclosed, those skilled in the art should understand that, on the basis of the technical solution of the disclosure, those skilled in the art are not
Need to make the creative labor the various modifications or changes that can be made still within the protection scope of the disclosure.
Claims (10)
1. a kind of remote-controlled switchgear AC and DC pressure regulation instruction carriage, it is characterised in that: including voltage follower circuit, electricity
Output control circuit and remote control circuit are pressed, the voltage follower circuit includes a three-phase regulator, the three-phase regulator
Input terminal is connected after overprotection is always spaced apart with three-phase and four-line AC power source, and the three-phase regulator is set there are two output end, institute
Stating two output ends, one of them is three phase ac voltage regulation output, another is connected with three-phase bridge rectification and capacitor filtering circuit
After export adjustable dc voltage, the voltage output control circuit is connected by relay with voltage follower circuit, it is described remotely
Remote control circuit carries out control mode switch by change-over switch and voltage output control circuit.
2. a kind of remote-controlled switchgear AC and DC pressure regulation instruction carriage as described in claim 1, which is characterized in that institute
It states voltage follower circuit and is additionally provided with the nonadjustable multichannel three-phase voltage output of voltage and single-phase voltage output.
3. a kind of remote-controlled switchgear AC and DC pressure regulation instruction carriage as claimed in claim 2, which is characterized in that institute
State voltage follower circuit every road output on is equipped with breaker and relay normally open contact switch, wherein three-phase output and it is adjustable
It is three-phase ganged breaker in parallel and three-phase ganged relay normally open contact switch in parallel on direct voltage output.
4. a kind of remote-controlled switchgear AC and DC pressure regulation instruction carriage as described in claim 1, which is characterized in that institute
The output voltage range for stating three phase ac voltage regulation is 0~450vAC, the output voltage range of the adjustable dc voltage is 0~
400vDC。
5. a kind of remote-controlled switchgear AC and DC pressure regulation instruction carriage as described in claim 1, which is characterized in that institute
The output end for stating three-phase and four-line AC power source is equipped with breaker and current transformer, and the current transformer is for measuring whole examination
It validates the car all current conditions, judges whether to overload.
6. a kind of remote-controlled switchgear AC and DC pressure regulation instruction carriage as described in claim 1, which is characterized in that institute
It states protection and is always spaced apart three-phase ganged breaker in parallel and three-phase ganged relay normally open contact switch in parallel including being sequentially connected.
7. a kind of remote-controlled switchgear AC and DC pressure regulation instruction carriage as described in claim 1, which is characterized in that institute
Stating voltage output control circuit includes multiple relay contact reset coils, and the remote control being connected with contact reset coil
Contact, local conducting button and local cut-off push button, wherein the remote control contact and local conducting button are straight by conducting wire
It connects and is connected with contact reset coil, the local cut-off push button passes through relay normally open contact and relay normally closed contact and contact
Reset coil is connected.
8. a kind of remote-controlled switchgear AC and DC pressure regulation instruction carriage as described in claim 1, which is characterized in that institute
Stating change-over switch includes the first change-over switch and the second change-over switch, first change-over switch be set to local conducting button and
On the circuit that local cut-off push button is connected with power supply, second change-over switch is set to what remote control circuit was connected with power supply
On circuit.
9. a kind of remote-controlled switchgear AC and DC pressure regulation instruction carriage as described in claim 1, which is characterized in that institute
Stating remote control circuit includes Multi-way remote control output control circuit, and voltage output is electric all the way for every road remote control output control circuit control
The output voltage on road.
10. a kind of remote-controlled switchgear AC and DC pressure regulation instruction carriage as claimed in claim 9, which is characterized in that every
A relay coil is equipped on remote control output control circuit described in road, the relay coil is used to control institute when remote state
State the on-off of the contact reset coil of voltage output control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822170442.7U CN209311602U (en) | 2018-12-21 | 2018-12-21 | A kind of remote-controlled switchgear AC and DC pressure regulation instruction carriage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822170442.7U CN209311602U (en) | 2018-12-21 | 2018-12-21 | A kind of remote-controlled switchgear AC and DC pressure regulation instruction carriage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209311602U true CN209311602U (en) | 2019-08-27 |
Family
ID=67678387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822170442.7U Expired - Fee Related CN209311602U (en) | 2018-12-21 | 2018-12-21 | A kind of remote-controlled switchgear AC and DC pressure regulation instruction carriage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209311602U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109444611A (en) * | 2018-12-21 | 2019-03-08 | 益和电气集团股份有限公司 | A kind of remote-controlled switchgear AC and DC pressure regulation instruction carriage |
| CN112731129A (en) * | 2020-12-14 | 2021-04-30 | 许昌开普检测研究院股份有限公司 | Integrated adjustable load for testing relay contact capacity |
-
2018
- 2018-12-21 CN CN201822170442.7U patent/CN209311602U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109444611A (en) * | 2018-12-21 | 2019-03-08 | 益和电气集团股份有限公司 | A kind of remote-controlled switchgear AC and DC pressure regulation instruction carriage |
| CN112731129A (en) * | 2020-12-14 | 2021-04-30 | 许昌开普检测研究院股份有限公司 | Integrated adjustable load for testing relay contact capacity |
| CN112731129B (en) * | 2020-12-14 | 2024-03-29 | 许昌开普检测研究院股份有限公司 | Integrated adjustable load for testing contact capacity of relay |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202353172U (en) | Three-phase power supply automatic reclosure protector | |
| CN202004479U (en) | Discharging device of single-group storage battery of DC system | |
| CN209311602U (en) | A kind of remote-controlled switchgear AC and DC pressure regulation instruction carriage | |
| CN102435899A (en) | Locomotive traction converter test apparatus and method thereof | |
| CN205265349U (en) | Little electric wire netting intelligence measurement and control device | |
| CN109100662A (en) | A kind of Intelligent high-pressure disconnecting switch AC/DC voltage regulating power supply test operation system | |
| CN211375862U (en) | Low-voltage intelligent transformer area fault simulation training device | |
| CN109444611A (en) | A kind of remote-controlled switchgear AC and DC pressure regulation instruction carriage | |
| CN110190585A (en) | Type B residual current monitoring and action breaker with wireless transmission function | |
| CN203965858U (en) | A kind of greenhouse actuator controller | |
| CN209001816U (en) | A kind of circuit of overhaul of line breaker multipurpose power source | |
| CN209167514U (en) | A kind of Intelligent high-pressure disconnecting switch AC/DC voltage regulating power supply test operation system | |
| CN103812022B (en) | A kind of power distribution cabinet | |
| CN202815558U (en) | Intelligent measurement and control device for switch cabinets | |
| CN104007688A (en) | Greenhouse actuator controller | |
| CN205544587U (en) | Intelligent operating circuit of intelligent circuit breaker | |
| CN203086238U (en) | Intelligent high-voltage switch control signal conversion equipment | |
| CN204516201U (en) | Comprehensive cable distribution Simulated training device is installed in interior lines | |
| CN203069751U (en) | Circuit breaker state monitoring device | |
| CN204037592U (en) | Track switch control box is used in a kind of switch machine debugging | |
| CN203734158U (en) | Power distribution cabinet | |
| CN208861162U (en) | A kind of six channel intelligent controlling devices | |
| CN208100420U (en) | A kind of robot control system and robot | |
| CN208445353U (en) | A kind of online energy efficiency evaluation device of loaded capacity-regulated transformer | |
| CN208420975U (en) | Dual power supply switching equipment testing auxiliary device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190827 Termination date: 20211221 |