CN107247205A - One-to-many charging pile calibrating installation - Google Patents

One-to-many charging pile calibrating installation Download PDF

Info

Publication number
CN107247205A
CN107247205A CN201710574887.9A CN201710574887A CN107247205A CN 107247205 A CN107247205 A CN 107247205A CN 201710574887 A CN201710574887 A CN 201710574887A CN 107247205 A CN107247205 A CN 107247205A
Authority
CN
China
Prior art keywords
calibrating
charging pile
calibrating installation
circuit
interface
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.)
Pending
Application number
CN201710574887.9A
Other languages
Chinese (zh)
Inventor
邓诗芸
胡勇
张俊林
刘拓
郑中木
唐肖祥
曾超
周后超
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SICHUAN DEYANG DEYI ELECTRONIC INSTRUMENT Co Ltd
Original Assignee
SICHUAN DEYANG DEYI ELECTRONIC INSTRUMENT Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SICHUAN DEYANG DEYI ELECTRONIC INSTRUMENT Co Ltd filed Critical SICHUAN DEYANG DEYI ELECTRONIC INSTRUMENT Co Ltd
Priority to CN201710574887.9A priority Critical patent/CN107247205A/en
Publication of CN107247205A publication Critical patent/CN107247205A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

The invention discloses a kind of one-to-many charging pile calibrating installation, the charging pile calibrating installation includes N number of charging gun and examines and determine interface and N number of electronic load interface, and N number of charging gun calibrating interface is matched one by one with N number of electronic load interface;Also include N number of sample circuit, wherein sample circuit includes current sampling circuit and voltage sampling circuit, the sample circuit is docked one by one with N number of charging gun calibrating interface, and N number of sample circuit is uniformly accessed into calibrating installation control mainboard, and wherein N is the integer more than or equal to 2;The present invention can realize a calibrating installation simultaneously to many charging piles or the electrical power control cabinet with multiple chargers is examined and determine.

Description

One-to-many charging pile calibrating installation
Technical field
The present invention relates to charging pile calibrating installation, and in particular to a kind of one-to-many charging pile calibrating installation.
Background technology
With the continuous popularization of New-energy electric vehicle, the electric automobile of New-energy electric vehicle complete sets of basic equipment facility is used as The life of alternating-current charging pile and people are closely bound up.Charging pile is divided into alternating-current charging pile and DC-AC charging pile, and charging pile is It is fixedly mounted on outside electric automobile, is connected with power network, the electric supply installation of power supply is provided for electric automobile and vehicle-mounted charger.
The shortcoming of existing product is:Current charging pile calibrating installation man-to-man can only be examined and determine charging pile, When carrying out charging pile calibrating to the region that charging pile is concentrated, if simply can not accurately be completed with an one-to-one calibrating installation One-to-many charging pile is examined and determine, and needs to take a substantial amount of time to examine and determine charging pile one by one, if using many charging piles Calibrating installation is examined and determine, then calibrating cost is too high, and the transport of calibrating installation also becomes more difficult;Likewise, for one Individual electrical power control cabinet, there is also above mentioned problem for the calibrating of the charging pile with multiple charging guns.
The content of the invention
, can it is an object of the invention to overcome the deficiencies of the prior art and provide a kind of one-to-many charging pile calibrating installation To realize a calibrating installation simultaneously to many charging piles or the electrical power control cabinet with multiple chargers is examined and determine.
The purpose of the present invention is achieved through the following technical solutions:
The charging pile calibrating installation includes N number of charging gun and examines and determine interface and N number of electronic load interface, N number of charging gun Calibrating interface is matched one by one with N number of electronic load interface;Also include N number of sample circuit, wherein sample circuit includes current sample Circuit and voltage sampling circuit, the sample circuit are docked one by one with N number of charging gun calibrating interface, N number of sample circuit system One access calibrating installation control mainboard, wherein N is the integer more than or equal to 2.
Further, described sample circuit is direct current sample circuit or alternating current sampling circuit;Wherein direct current sample circuit Applied to direct-current charging post calibrating, alternating current sampling circuit is examined and determine applied to alternating-current charging pile, i.e. charging pile calibrating installation is divided into directly Flow calibrating type and exchange calibrating type.
Further, described N number of sample circuit includes N number of direct current sample circuit and N number of alternating current sampling circuit, each Charging gun calibrating interface is connected with a direct current sample circuit and an alternating current sampling circuit respectively;Also include N group current switchings Circuit and voltage commutation circuit, the direct current sample circuit and alternating current sampling circuit respectively with current switch circuit and voltage switching Circuit is connected, the output end connection calibrating installation control mainboard of the current switch circuit and voltage commutation circuit.The design mesh Be in order to realize that AC DC is examined and determine on the same stage, each charging gun calibrating interface access ac-dc converter circuit, if input Be direct current then by change-over circuit be converted into exchange, such as input be to exchange, direct current is converted into by change-over circuit so that Realize the calibrating on the same stage of alternating current-direct current charging pile.
Further, the control button of the charging pile calibrating installation is level signal control button, i.e., charging pile is examined and determine The control of device is triggered by level signal, and control end receives level signal and then triggers corresponding control.
Further, in addition to mobile terminal device, the charging pile calibrating installation is configured with logical with mobile terminal device The communication module of letter, the communication module is connected with the control mainboard of charging pile calibrating installation, is set on the mobile terminal device It is equipped with the man machine operation interface for controlling charging pile calibrating installation.Mobile terminal device is realized and charging pile by communication module The control mainboard communication of calibrating installation, so as to send corresponding control instruction to control mainboard by man machine operation interface, control System instruction is to send level controling signal to control mainboard by man-machine interface to realize.
Further, described man machine operation interface includes calibrating model selection, and the calibrating pattern includes one-to-one inspection Mould-fixed and one-to-many calibrating pattern, i.e. man-machine interface can select the calibrating pattern of charging pile calibrating installation, can select one Calibrating pattern or one-to-many calibrating pattern to one.
Further, switch one is set between described charging gun calibrating interface and the close access of sample circuit formation, Switch two is provided between the close access formed between the electronic load interface and electronic load;The man machine operation interface Or charging pile calibrating installation is provided with the control button of switch one and switch two;Man machine operation interface is to N number of switch one and N number of opens Two selectivity controls are closed, so as to select the working condition of charging pile calibrating installation.
Further, described mobile terminal device is mobile phone or tablet personal computer.
Further, it is in series with overvoltage guarantor between the close access of described charging gun calibrating interface and charging gun composition Shield switch or overcurrent protection circuit.
Further, described charging pile calibrating installation is additionally provided with ground protection.
The beneficial effects of the invention are as follows:Compared with traditional charging pile calibrating installation, the charging pile calibrating in the present invention Device can not only realize man-to-man charging pile calibrating, while one-to-many charging pile calibrating can also be realized;In addition, of the invention In the remote control of charging pile calibrating installation is also realized by mobile terminal device, it is to avoid artificially directly the calibrating of contact charging pile is filled Put and cause personal injury.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention;
Fig. 2 is the structural representation of embodiment 1;
Fig. 3 is the structural representation of embodiment 2;
Fig. 4 is the structural representation of embodiment 3;
Fig. 5 is the structural representation of embodiment 4.
Embodiment
Technical scheme is described in further detail below in conjunction with the accompanying drawings, but protection scope of the present invention is not limited to It is as described below.
As shown in figure 1,
The charging pile calibrating installation includes N number of charging gun and examines and determine interface and N number of electronic load interface, N number of charging gun Calibrating interface is matched one by one with N number of electronic load interface;Also include N number of sample circuit, wherein sample circuit includes current sample Circuit and voltage sampling circuit, the sample circuit are docked one by one with N number of charging gun calibrating interface, N number of sample circuit system One access calibrating installation control mainboard, wherein N is the integer more than or equal to 2.
Further, described sample circuit is direct current sample circuit or alternating current sampling circuit;Wherein direct current sample circuit Applied to direct-current charging post calibrating, alternating current sampling circuit is examined and determine applied to alternating-current charging pile, i.e. charging pile calibrating installation is divided into directly Flow calibrating type and exchange calibrating type.
Further, described N number of sample circuit includes N number of direct current sample circuit and N number of alternating current sampling circuit, each Charging gun calibrating interface is connected with a direct current sample circuit and an alternating current sampling circuit respectively;Also include N group current switchings Circuit and voltage commutation circuit, the direct current sample circuit and alternating current sampling circuit respectively with current switch circuit and voltage switching Circuit is connected, the output end connection calibrating installation control mainboard of the current switch circuit and voltage commutation circuit.The design mesh Be in order to realize that AC DC is examined and determine on the same stage, each charging gun calibrating interface access ac-dc converter circuit, if defeated What is entered is that direct current is then converted into exchange by change-over circuit, and what it is such as input is to exchange, and direct current is converted into by change-over circuit, from And realize the calibrating on the same stage of alternating current-direct current charging pile.
Further, the control button of the charging pile calibrating installation is level signal control button, i.e., charging pile is examined and determine The control of device is triggered by level signal, and control end receives level signal and then triggers corresponding control.
Further, in addition to mobile terminal device, the charging pile calibrating installation is configured with logical with mobile terminal device The communication module of letter, the communication module is connected with the control mainboard of charging pile calibrating installation, is set on the mobile terminal device It is equipped with the man machine operation interface for controlling charging pile calibrating installation.Mobile terminal device is realized and charging pile by communication module The control mainboard communication of calibrating installation, so as to send corresponding control instruction to control mainboard by man machine operation interface, control System instruction is to send level controling signal to control mainboard by man-machine interface to realize.
Further, described man machine operation interface includes calibrating model selection, and the calibrating pattern includes one-to-one inspection Mould-fixed and one-to-many calibrating pattern, i.e. man-machine interface can select the calibrating pattern of charging pile calibrating installation, can select one Calibrating pattern or one-to-many calibrating pattern to one.
Further, switch one is set between described charging gun calibrating interface and the close access of sample circuit formation, Switch two is provided between the close access formed between the electronic load interface and electronic load;The man machine operation interface Or charging pile calibrating installation is provided with the control button of switch one and switch two;Man machine operation interface is to N number of switch one and N number of opens Two selectivity controls are closed, so as to select the working condition of charging pile calibrating installation.
Further, described mobile terminal device is mobile phone or tablet personal computer.
Further, it is in series with overvoltage guarantor between the close access of described charging gun calibrating interface and charging gun composition Shield switch or overcurrent protection circuit.
Further, described charging pile calibrating installation is additionally provided with ground protection.
【Embodiment 1】
As shown in Figure 2:
One-to-many alternating-current charging pile calibrating installation, the charging pile calibrating installation includes 10 charging gun calibrating interfaces and 10 Electronic load interface, 10 charging guns calibrating interface is matched one by one with 10 electronic load interfaces;Also include 10 exchanges Current sampling circuit and 10 alternating voltage sampling circuits, 10 alternating current sample circuits and 10 alternating voltage sampling circuits Docked one by one with 10 charging gun calibrating interfaces respectively, 10 alternating current sample circuits and 10 alternating voltage sampling electricity Road is uniformly accessed into calibrating installation control mainboard, wherein, each is led to by charging gun calibrating interface with the closure that sample circuit is formed Switch one is in series with road, is in series between the close access that each equally is made up of electronic load interface and electronic load Switch two;Charging pile calibrating installation is provided with calibrating mode control button, the calibrating mould of the calibrating installation for switching charging pile Formula, specific control button can be arranged to a key conversion and control or multikey is controlled one by one, wherein a key conversion and control refers to have A pair ten calibrating patten transformations one examine and determine pattern in a pair, and multikey is controlled one by one, control more flexibly, that is, set 10 switches One and the control button of switch two, manually select which charging gun calibrating interface puts into operation;It is last in order to ensure operating personnel Personal safety, charging pile calibrating installation should set ground protection, meanwhile, described charging gun calibrating interface is constituted with charging gun Close access between be in series with over-voltage protection switch or overcurrent protection circuit.
【Embodiment 2】
As shown in Figure 3:
One-to-many direct-current charging post calibrating installation, the charging pile calibrating installation includes 20 charging gun calibrating interfaces and 20 Electronic load interface, 20 charging guns calibrating interface is matched one by one with 20 electronic load interfaces;Also include 20 direct currents Current sampling circuit and 20 DC voltage sample circuits, 20 DC current sample circuits and 20 DC voltage sample circuits Docked one by one with 20 charging gun calibrating interfaces respectively, 20 DC current sample circuits and 20 DC voltage sampling electricity Road is uniformly accessed into calibrating installation control mainboard, wherein, each is led to by charging gun calibrating interface with the closure that sample circuit is formed Switch one is in series with road, is in series between the close access that each equally is made up of electronic load interface and electronic load Switch two;Charging pile calibrating installation is provided with calibrating mode control button, the calibrating mould of the calibrating installation for switching charging pile Formula, specific control button can be arranged to a key conversion and control or multikey is controlled one by one, wherein a key conversion and control refers to have A pair 20 calibrating patten transformations one examine and determine pattern in a pair, and multikey is controlled one by one, control more flexibly, that is, setting 20 opens The control button of one and switch two are closed, manually selects which charging gun calibrating interface puts into operation;It is last in order to ensure operator The personal safety of member, charging pile calibrating installation should set ground protection, meanwhile, described charging gun calibrating interface and charging gun group Into close access between be in series with over-voltage protection switch or overcurrent protection circuit.
【Embodiment 3】
As shown in Figure 4:
One-to-many alternating current-direct current calibrating installation on the same stage, the charging pile calibrating installation includes 15 charging guns calibrating interfaces and 15 Electronic load interface, 15 charging guns calibrating interface is matched one by one with 15 electronic load interfaces;Also include 15 exchanges Current sampling circuit, 15 DC current sample circuits, 15 alternating voltage sampling circuits, 15 DC voltage sample circuits, 15 alternating current sample circuits, 15 DC current sample circuits, 15 alternating voltage sampling circuits, 15 DC voltages are adopted Sample circuit is docked one by one with 15 charging guns calibrating interfaces respectively realizes AC/DC sampling, in addition to 15 current converter circuits and 15 voltage conversion circuits, 15 alternating current sample circuits, 15 DC current sample circuits connect electric current and turned respectively Circuit is changed, shown 15 alternating voltage sampling circuits, 15 DC voltage sample circuits connect voltage conversion circuit, electric current respectively Change-over circuit and voltage conversion circuit are uniformly accessed into calibrating installation control mainboard, wherein, each by charging gun examine and determine interface with Switch one is in series with the close access of sample circuit formation, each equally is by electronic load interface and electronic load group Into close access between be in series with switch two,;Charging pile calibrating installation is provided with calibrating mode control button, is filled for switching The calibrating pattern of the calibrating installation of electric stake, specific control button can be arranged to a key conversion and control or multikey is controlled one by one, A wherein key conversion and control refers to there is an a pair 15 calibrating patten transformations calibrating pattern in a pair, and multikey is controlled, controlled one by one More flexibly, that is, the control button of 15 switches one and switch two is set, which charging gun calibrating interface input fortune manually selected OK;The last personal safety in order to ensure operating personnel, charging pile calibrating installation should set ground protection;Meanwhile, described fills Over-voltage protection switch or overcurrent protection circuit are in series between the close access of electric rifle calibrating interface and charging gun composition.
【Embodiment 4】
As shown in Figure 5:
The one-to-many charging pile calibrating installation controlled based on mobile terminal, the charging pile calibrating installation includes 12 charging gun inspections Stationary interface and 12 electronic load interfaces, 12 charging guns calibrating interface are matched one by one with 12 electronic load interfaces; Also include 12 sample circuits, wherein sample circuit includes current sampling circuit and voltage sampling circuit, the sample circuit with 12 charging gun calibrating interfaces are docked one by one, and 12 sample circuits are uniformly accessed into calibrating installation control mainboard, wherein, charging The control button of stake calibrating installation is level signal control button.Also include mobile terminal device, the charging pile calibrating installation The communication module communicated with mobile terminal device is configured with, the communication module and the control mainboard of charging pile calibrating installation connect Connect, the man machine operation interface for controlling charging pile calibrating installation is provided with the mobile terminal device.Described charging gun Switch one is set between the close access for examining and determine interface and sample circuit formation, between the electronic load interface and electronic load Switch two is provided between the close access of formation;Man machine operation interface or the charging pile calibrating installation is provided with one He of switch The control button of switch two;Overvoltage guarantor is in series between described charging gun calibrating interface and the close access of charging gun composition Shield switch or overcurrent protection circuit.
Wherein, man machine operation interface includes calibrating model selection, and the calibrating pattern includes one-to-one calibrating pattern and one Control button to being provided with controlling switch one and switch two in many calibrating pattern, i.e. man-machine interfaces, to realize calibrating pattern Switching.
Mobile terminal device in the present embodiment is mobile phone or tablet personal computer.
Described above is only the preferred embodiment of the present invention, it should be understood that the present invention is not limited to described herein Form, is not to be taken as the exclusion to other embodiment, and available for various other combinations, modification and environment, and can be at this In the text contemplated scope, it is modified by the technology or knowledge of above-mentioned teaching or association area.And those skilled in the art are entered Capable change and change does not depart from the spirit and scope of the present invention, then all should appended claims of the present invention protection domain It is interior.

Claims (10)

1. one-to-many charging pile calibrating installation, it is characterised in that:The charging pile calibrating installation includes the calibrating of N number of charging gun and connect Mouth and N number of electronic load interface, N number of charging gun calibrating interface are matched one by one with N number of electronic load interface;Also include N Individual sample circuit, wherein sample circuit include current sampling circuit and voltage sampling circuit, the sample circuit and N number of charging gun Calibrating interface is docked one by one, and N number of sample circuit is uniformly accessed into calibrating installation control mainboard, and wherein N is whole more than or equal to 2 Number.
2. one-to-many charging pile calibrating installation according to claim 1, it is characterised in that:Described sample circuit is straight Flow sample circuit or alternating current sampling circuit.
3. one-to-many charging pile calibrating installation according to claim 1, it is characterised in that:Described sample circuit includes Direct current sample circuit and alternating current sampling circuit, each charging gun calibrating interface are handed over a direct current sample circuit and one respectively Flow sample circuit connection;Also include N number of current switch circuit and N number of voltage commutation circuit, the direct current sample circuit with exchange Sample circuit is connected with current switch circuit and voltage commutation circuit respectively, the current switch circuit and voltage commutation circuit Output end connects calibrating installation control mainboard.
4. one-to-many charging pile calibrating installation according to claim 1, it is characterised in that:The charging pile calibrating installation Control button be level signal control button.
5. one-to-many charging pile calibrating installation according to claim 4, it is characterised in that:Also set including mobile terminal Standby, the charging pile calibrating installation is configured with the communication module communicated with mobile terminal device, the communication module and charging pile The man-machine behaviour for controlling charging pile calibrating installation is provided with the control mainboard connection of calibrating installation, the mobile terminal device Make interface.
6. one-to-many charging pile calibrating installation according to claim 5, it is characterised in that:Described man machine operation interface Including calibrating model selection, the calibrating pattern includes one-to-one calibrating pattern and one-to-many calibrating pattern.
7. one-to-many charging pile calibrating installation according to claim 6, it is characterised in that:Described charging gun calibrating connects Switch one is set between mouth and the close access of sample circuit formation, formed between the electronic load interface and electronic load Switch two is provided between close access;Man machine operation interface or the charging pile calibrating installation is provided with switch one and switch two Control button.
8. the one-to-many charging pile calibrating installation according to any one of claim 5-7, it is characterised in that:Described shifting Dynamic terminal device is mobile phone or tablet personal computer.
9. one-to-many charging pile calibrating installation according to claim 1, it is characterised in that:Described charging gun calibrating connects Over-voltage protection switch or overcurrent protection circuit are in series between mouth and the close access of charging gun composition.
10. one-to-many charging pile calibrating installation according to claim 1, it is characterised in that:Described charging pile calibrating Device is additionally provided with ground protection.
CN201710574887.9A 2017-07-14 2017-07-14 One-to-many charging pile calibrating installation Pending CN107247205A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710574887.9A CN107247205A (en) 2017-07-14 2017-07-14 One-to-many charging pile calibrating installation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710574887.9A CN107247205A (en) 2017-07-14 2017-07-14 One-to-many charging pile calibrating installation

Publications (1)

Publication Number Publication Date
CN107247205A true CN107247205A (en) 2017-10-13

Family

ID=60014551

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710574887.9A Pending CN107247205A (en) 2017-07-14 2017-07-14 One-to-many charging pile calibrating installation

Country Status (1)

Country Link
CN (1) CN107247205A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110212595A (en) * 2018-02-06 2019-09-06 重庆电讯职业学院 One-to-many calibrating installation applied to energy storage type high-power electric vehicle charging station
CN111157822A (en) * 2020-01-03 2020-05-15 云南电网有限责任公司电力科学研究院 Testing arrangement and system to many output port direct current charger

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105785175A (en) * 2016-03-11 2016-07-20 西安特锐德智能充电科技有限公司 Portable detection apparatus for alternating-current/direct-current charging pile
CN106627237A (en) * 2017-01-09 2017-05-10 深圳市深泰明科技有限公司 Control system and method for charging pile provided with one charger and multiple charging guns
CN106877463A (en) * 2017-04-21 2017-06-20 云杉智慧新能源技术有限公司 The charging pile and method of a kind of multiple gun automated power distribution
CN106886004A (en) * 2017-01-20 2017-06-23 杭州创睿新能源科技有限公司 Alternating current-direct current charging pile tester and synchronous measurement test method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105785175A (en) * 2016-03-11 2016-07-20 西安特锐德智能充电科技有限公司 Portable detection apparatus for alternating-current/direct-current charging pile
CN106627237A (en) * 2017-01-09 2017-05-10 深圳市深泰明科技有限公司 Control system and method for charging pile provided with one charger and multiple charging guns
CN106886004A (en) * 2017-01-20 2017-06-23 杭州创睿新能源科技有限公司 Alternating current-direct current charging pile tester and synchronous measurement test method
CN106877463A (en) * 2017-04-21 2017-06-20 云杉智慧新能源技术有限公司 The charging pile and method of a kind of multiple gun automated power distribution

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110212595A (en) * 2018-02-06 2019-09-06 重庆电讯职业学院 One-to-many calibrating installation applied to energy storage type high-power electric vehicle charging station
CN111157822A (en) * 2020-01-03 2020-05-15 云南电网有限责任公司电力科学研究院 Testing arrangement and system to many output port direct current charger

Similar Documents

Publication Publication Date Title
CN206598744U (en) One kind is based on V2V charge-discharge systems
CN107681672A (en) The interactive approach of charging pile interactive terminal and charging pile access power network
CN203078390U (en) Vehicle-mounted integrated electrical equipment quality detecting platform
CN107247205A (en) One-to-many charging pile calibrating installation
CN107834876A (en) A kind of rectification type invariable power continuous impulse load simulating device
CN206892227U (en) One-to-many charging pile calibrating installation
CN105242221A (en) DC feedback type DC electronic load for locomotive power supply test
CN107367650A (en) Charging pile calibrating installation verification system based on mobile terminal
CN209119812U (en) DC energy storage backup power supply with peak load shifting function
CN203522271U (en) Charging or discharging system of device
CN207504774U (en) Variable frequency drive and system
CN206992749U (en) A kind of electronics BDAR both Multipurpose electric source device
CN108680804A (en) AC and DC resistance load system based on bus marco and control method
CN210161933U (en) Direct current-to-direct current integrated charger
CN107121619B (en) A kind of electric substation's route protection service without power-off device and repair method
CN207442709U (en) A kind of rectification type invariable power continuous impulse load simulating device
CN209134135U (en) Ring network cabinet emergency operation power supply
CN209028111U (en) Test power supply for coalcutter electric components
WO2021015362A1 (en) Intelligent distribution panel and power control method using same
CN207650278U (en) The special phase changer of direct-current resistance tester for transformer
CN203674601U (en) Mobile bypass circuit breaker
CN206602400U (en) A kind of mine direct current electric power system and a kind of mining work station
CN210466813U (en) AC/DC charging intelligent training platform
CN204882758U (en) Intelligent multi -functional circular telegram testboard
CN204882737U (en) Novel dipulse test platform

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20171013

RJ01 Rejection of invention patent application after publication