CN104267301B - Power consumer electricity consumption information acquisition control system - Google Patents
Power consumer electricity consumption information acquisition control system Download PDFInfo
- Publication number
- CN104267301B CN104267301B CN201410583985.5A CN201410583985A CN104267301B CN 104267301 B CN104267301 B CN 104267301B CN 201410583985 A CN201410583985 A CN 201410583985A CN 104267301 B CN104267301 B CN 104267301B
- Authority
- CN
- China
- Prior art keywords
- monitoring
- control unit
- load
- power
- load control
- 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.)
- Active
Links
- 230000005611 electricity Effects 0.000 title claims abstract description 28
- 238000012544 monitoring process Methods 0.000 claims abstract description 120
- 238000004891 communication Methods 0.000 claims abstract description 80
- 230000005856 abnormality Effects 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 8
- 230000009471 action Effects 0.000 claims description 7
- 238000003908 quality control method Methods 0.000 abstract 1
- 230000002159 abnormal effect Effects 0.000 description 6
- 230000009466 transformation Effects 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 238000007726 management method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000010223 real-time analysis Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
Abstract
The invention provides a kind of power consumer electricity consumption information acquisition control system, comprise the load control unit, equipment for monitoring power quality, gauge tap, the ammeter that are arranged at each power consumer end and be arranged on the electric power load monitoring and control center of far-end; Load control unit has a GPRS communication module; Load control unit passes through its GPRS communication module via GPRS network and electric power load monitoring and control center to center communications; Load control unit is electrically connected with gauge tap and ammeter signal; Its design feature is: load control unit is electrically connected with the communication serial port signal of equipment for monitoring power quality; The equipment for monitoring power quality of same user side and load control unit common share communication link or equipment for monitoring power quality control and electric power load monitoring and control center to center communications by load control unit.The present invention can reduce the communication operating cost of power supply department, performs the accuracy and promptness of stopping rationing the power supply when improving multiplexing electric abnormality.
Description
Technical field
The present invention relates to a kind of power consumer electricity consumption information acquisition control system.
Background technology
Current, power consumer electricity consumption information acquisition control system is widely applied at power supply department.As shown in Figure 1, it is primarily of the load control unit, equipment for monitoring power quality (PQMD), gauge tap, the composition such as ammeter and the electric power load monitoring and control center being arranged on far-end (usually in power supply management department) that are arranged at each subscriber terminal side for the structured flowchart of currently used power consumer electricity consumption information acquisition control system.A GPRS communication module is provided with in load control unit; The 2nd GPRS communication module is provided with in equipment for monitoring power quality.The operational mode of current power consumer electricity consumption information acquisition control system is: by being arranged at the load control unit of each user terminal and the equipment for monitoring power quality GPRS communication module separately electric power load monitoring and control center to center communications respectively by respective communication link and far-end; The power quality parameter of the Electricity customers of its Real-time Collection is uploaded to electric power load monitoring and control center by the GPRS link of himself by ammeter by equipment for monitoring power quality, carries out real-time operation analysis by electric power load monitoring and control center to the data received; Load control unit is communicated with remote loads Surveillance center by the GPRS link of himself, obtains the action command that the power quality parameter of this client and electric power load monitoring and control center are assigned; When electric power load monitoring and control center judge the quality of power supply of a certain client go wrong or occur load excessive etc. abnormal time; electric power load monitoring and control center is assigned to the load control unit of this client and is stopped instruction of rationing the power supply; connected gauge tap action is controlled by the load control unit of this client; implement to have a power failure and action of rationing the power supply to this client, reach " family of rationing the power supply ", " Bu La road of rationing the power supply " and protect the object of consumer.
Current power consumer electricity consumption information acquisition control system, the load control unit of each user terminal and equipment for monitoring power quality are also the electric power load monitoring and control center to center communications that 1 user terminal adopts two GPRS communication link and far-end respectively by 1 road GPRS communication link; Its weak point is: one is because the quantity of current power user is very huge, at one time, a large amount of equipment for monitoring power quality needs to keep online communications status with electric power load monitoring and control center always, add the instability of network, make electric power load monitoring and control center power quality information that is real-time, complete, that reliably gather all users very difficult; Two is whether the power quality parameter of all users carries out computing by electric power load monitoring and control center and extremely to judge occurring, electric power load monitoring and control center be can't bear the heavy load; Three is when a certain client multiplexing electric abnormality, need after the equipment for monitoring power quality uploading data of this client, electric power load monitoring and control center calculation process judge this abnormal data, load control unit again to this client assigns the links such as control command, thus this client monitors is extended to multiplexing electric abnormality to the response time of the load control unit of this client, cause process problem not in time; Four be the gprs service of Office of the Telecommunications Authority according to charge on traffic, two GPRS communication link increases the operation cost of power supply department.
Summary of the invention
The object of the invention is: overcome the deficiencies in the prior art, there is provided the load control unit that effectively can improve user side during a kind of use to perform the accuracy and promptness of stopping rationing the power supply when occurring abnormal, and effectively can reduce the power consumer electricity consumption information acquisition control system of power supply department communication operating cost.
Technical scheme of the present invention is: power consumer electricity consumption information acquisition control system of the present invention, comprises the load control unit, equipment for monitoring power quality, gauge tap, the ammeter that are arranged at each power consumer end and is arranged on the electric power load monitoring and control center of far-end; Described load control unit has a GPRS communication module; Load control unit passes through its GPRS communication module via GPRS network and electric power load monitoring and control center to center communications; Load control unit is electrically connected with same user side gauge tap and ammeter signal; Its design feature is:
Above-mentioned equipment for monitoring power quality and load control unit all have communication serial port; The communication serial port of load control unit is electrically connected with the communication serial port signal of the equipment for monitoring power quality of same user side; The equipment for monitoring power quality of same user side and load control unit share the communication link utilizing GPRS network and electric power load monitoring and control center to set up by its GPRS communication module by load control unit.
Further scheme is: above-mentioned load control unit is received by serial communication and processes the data of the equipment for monitoring power quality of same user side; When load control unit judge user side multiplexing electric abnormality or load control unit receive electric power load monitoring and control center stop rationing the power supply operational order time, load control unit, by controlling the gauge tap action of connected same user side, performs and stops operation of rationing the power supply.
Another kind of power consumer electricity consumption information acquisition control system of the present invention, comprises the load control unit, equipment for monitoring power quality, gauge tap, the ammeter that are arranged at each power consumer end and is arranged on the electric power load monitoring and control center of far-end; Load control unit has a GPRS communication module; Load control unit passes through its GPRS communication module via GPRS network and electric power load monitoring and control center to center communications; Load control unit is electrically connected with same user side gauge tap and ammeter signal; Equipment for monitoring power quality has the 2nd GPRS communication module; Its design feature is: described equipment for monitoring power quality and load control unit all have communication serial port; The communication serial port of load control unit is electrically connected with the communication serial port signal of the equipment for monitoring power quality of same user side; Described load control unit receives the order that the power quality parameter of power consumer end is uploaded at electric power load monitoring and control center, and the 2nd GPRS communication module controlling equipment for monitoring power quality uploads the power quality parameter of this client to electric power load monitoring and control center through GPRS network; Load control unit receives the order that electric power load monitoring and control center stops uploading the power quality parameter of power consumer end, and the 2nd GPRS communication module of corresponding control equipment for monitoring power quality stops the power quality parameter uploading this client to electric power load monitoring and control center.
Further scheme is: above-mentioned load control unit is received by serial communication and processes the data of the equipment for monitoring power quality of same user side; When load control unit judge user side multiplexing electric abnormality or load control unit receive electric power load monitoring and control center stop rationing the power supply operational order time, load control unit, by controlling the gauge tap action of connected same user side, performs and stops operation of rationing the power supply.
The present invention has positive effect: (1) power consumer electricity consumption information acquisition control system of the present invention, change in prior art the Design Mode be separated from each other that communicates between load control unit with equipment for monitoring power quality, its the first implementation, by the load control unit of same power consumer end and equipment for monitoring power quality directly being established a communications link, passes through 1 road GPRS communication link and electric power load monitoring and control center to center communications by load control unit; Its second implementation is by directly establishing a communications link the load control unit of same power consumer end and equipment for monitoring power quality, when receiving the order of electric power load monitoring and control center uploading data by load control unit, just corresponding control equipment for monitoring power quality sets up with electric power load monitoring and control center the uploading data that communicates, when not needing uploading data, equipment for monitoring power quality and the interrupt communication of electric power load monitoring and control center; These 2 kinds of implementations all significantly can reduce the GPRS network bandwidth sum flow between user side and load monitoring center, alleviate the communication pressure at electric power load monitoring and control center, reduce the communication operating cost of power supply department.(2) power consumer electricity consumption information acquisition control system of the present invention, load control unit directly shares the Monitoring Data of the equipment for monitoring power quality of same power consumer end, load control unit carries out analysis in real time to the electric energy quality monitoring data shared and judges, undertaken stopping operation of rationing the power supply by gauge tap when there is multiplexing electric abnormality, thus the load control unit that effectively can improve user side performs the accuracy and promptness of stopping rationing the power supply when occurring abnormal, and significantly alleviate the computational burden at electric power load monitoring and control center.(3) power consumer electricity consumption information acquisition control system of the present invention, on the basis of existing power consumer electricity consumption information acquisition control system, the load control unit of power consumer end and the vacant serial interface of equipment for monitoring power quality only need be utilized conveniently can to realize transformation, implementing process is simple, easy-to-connect, improvement cost is extremely low, is easy to spread.
Accompanying drawing explanation
Fig. 1 is the structural representation of the power consumer electricity consumption information acquisition control system of prior art;
Fig. 2 is a kind of structural representation of the present invention;
Fig. 3 is another kind of structural representation of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
(embodiment 1)
See Fig. 2, the power consumer electricity consumption information acquisition control system of the present embodiment, primarily of the load control unit, equipment for monitoring power quality, gauge tap, the composition such as ammeter and the electric power load monitoring and control center being arranged on far-end (usually in power supply management department) that are arranged at each power consumer terminal.
Equipment for monitoring power quality is electrically connected with ammeter signal, and equipment for monitoring power quality is used for the quality of power supply correlation parameter of Real-time Collection power consumer end.Equipment for monitoring power quality has communication serial port.
Load control unit is electrically connected with gauge tap and ammeter signal; Load control unit has GPRS communication module and a communication serial port; The communication serial port of load control unit is electrically connected with the communication serial port signal of equipment for monitoring power quality by signal wire; Load control unit utilizes the electric power load monitoring and control center to center communications of existing GPRS network and far-end by its GPRS communication module.
Load control unit and equipment for monitoring power quality realize the data sharing to equipment for monitoring power quality by serial communication; load control unit carries out analytical calculation to the power quality data shared in real time; when load control unit judge user side multiplexing electric abnormality or load control unit receive electric power load monitoring and control center stop rationing the power supply operational order time; load control unit, by controlling connected gauge tap action, performs and stops operation of rationing the power supply.
When equipment for monitoring power quality needs to electric power load monitoring and control center uploading data, GPRS network is utilized to be uploaded to the electric power load monitoring and control center of far-end by load control unit by its GPRS communication module.Namely also the equipment for monitoring power quality of same user side and load control unit share the communication link that load control unit utilizes GPRS network and electric power load monitoring and control center to set up by its GPRS communication module.
The power consumer electricity consumption information acquisition control system of the present embodiment, change in prior art the Design Mode be separated from each other that communicates between load control unit with equipment for monitoring power quality, by the load control unit of same power consumer end and equipment for monitoring power quality are directly established a communications link, by load control unit by 1 road GPRS communication link and electric power load monitoring and control center to center communications; Thus the GPRS network bandwidth sum flow that can significantly reduce between user side and load monitoring center, alleviate the communication pressure at electric power load monitoring and control center, reduce the communication operating cost of power supply department; Simultaneously, the real-time analysis that load control unit directly carries out electric energy quality monitoring data judges, directly carry out stopping operation of rationing the power supply by gauge tap when there is multiplexing electric abnormality, thus the load control unit that effectively can improve user side performs the accuracy and promptness of stopping rationing the power supply when occurring abnormal, and significantly alleviate the computational burden at electric power load monitoring and control center; And, it need on the basis of existing power consumer electricity consumption information acquisition control system, utilize the load control unit of power consumer end and the vacant serial interface of equipment for monitoring power quality conveniently can realize transformation, implementing process is simple, easy-to-connect, improvement cost is extremely low, is easy to spread.
(embodiment 2)
See Fig. 3, the power consumer electricity consumption information acquisition control system of the present embodiment, other aspects are identical with embodiment 1, and difference is: equipment for monitoring power quality has the 2nd GPRS communication module, the 2nd GPRS communication module of equipment for monitoring power quality.
The power consumer electricity consumption information acquisition control system of the present embodiment, when electric power load monitoring and control center needs the power quality parameter receiving a certain power consumer end, electric power load monitoring and control center sends the order of uploading the power quality parameter of power consumer end to the load control unit of this user side, the 2nd GPRS communication module that load control unit controls equipment for monitoring power quality starts, set up the communication connection with electric power load monitoring and control center through GPRS network, and upload the power quality parameter of this client; Parameter transmission is complete or when not needing transformation parameter, load control unit receives the order that electric power load monitoring and control center stops the power quality parameter uploading power consumer end accordingly, the 2nd GPRS communication module controlling equipment for monitoring power quality is closed, and stops the power quality parameter uploading this client to electric power load monitoring and control center.
The power consumer electricity consumption information acquisition control system of the present embodiment, by the load control unit of same power consumer end and equipment for monitoring power quality are directly established a communications link, receive electric power load monitoring and control center uploading data by load control unit or stop the order of uploading data, the second GPRS module of corresponding control equipment for monitoring power quality and electric power load monitoring and control center to center communications or interrupt communication; Thus the GPRS network bandwidth sum flow that can significantly reduce between user side and load monitoring center, alleviate the communication pressure at electric power load monitoring and control center, reduce the communication operating cost of power supply department; Equally, the power consumer electricity consumption information acquisition control system of the present embodiment, load control unit directly shares the Monitoring Data of the equipment for monitoring power quality of same power consumer end, load control unit carries out analysis in real time to the electric energy quality monitoring data shared and judges, undertaken stopping operation of rationing the power supply by gauge tap when there is multiplexing electric abnormality, thus the load control unit that effectively can improve user side performs the accuracy and promptness of stopping rationing the power supply when occurring abnormal, and significantly alleviate the computational burden at electric power load monitoring and control center; The power consumer electricity consumption information acquisition control system of the present embodiment, on the basis of existing power consumer electricity consumption information acquisition control system, the load control unit of power consumer end and the vacant serial interface of equipment for monitoring power quality only need be utilized conveniently can to realize transformation, implementing process is simple, easy-to-connect, improvement cost is extremely low, is easy to spread.
Above embodiment is the explanation to the specific embodiment of the present invention; but not limitation of the present invention; person skilled in the relevant technique without departing from the spirit and scope of the present invention; can also make various conversion and change and obtain corresponding equivalent technical scheme, therefore all equivalent technical schemes all should be included into scope of patent protection of the present invention.
Claims (2)
1. a power consumer electricity consumption information acquisition control system, comprises the load control unit, equipment for monitoring power quality, gauge tap, the ammeter that are arranged at each power consumer end and is arranged on the electric power load monitoring and control center of far-end; Load control unit has a GPRS communication module; Load control unit passes through its GPRS communication module via GPRS network and electric power load monitoring and control center to center communications; Gauge tap and the ammeter signal of load control unit and same user side are electrically connected; Equipment for monitoring power quality has the 2nd GPRS communication module; It is characterized in that:
Described equipment for monitoring power quality and load control unit all have communication serial port; The communication serial port of load control unit is electrically connected with the communication serial port signal of the equipment for monitoring power quality of same user side; Described load control unit receives the order that the power quality parameter of power consumer end is uploaded at electric power load monitoring and control center, and the 2nd GPRS communication module controlling equipment for monitoring power quality uploads the power quality parameter of this client to electric power load monitoring and control center through GPRS network; Load control unit receives the order that electric power load monitoring and control center stops uploading the power quality parameter of power consumer end, and the 2nd GPRS communication module of corresponding control equipment for monitoring power quality stops the power quality parameter uploading this client to electric power load monitoring and control center.
2. power consumer electricity consumption information acquisition control system according to claim 1, is characterized in that: described load control unit is received by serial communication and processes the data of the equipment for monitoring power quality of same user side; When load control unit judge user side multiplexing electric abnormality or load control unit receive electric power load monitoring and control center stop rationing the power supply operational order time, load control unit, by controlling the gauge tap action of connected same user side, performs and stops operation of rationing the power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410583985.5A CN104267301B (en) | 2014-10-27 | 2014-10-27 | Power consumer electricity consumption information acquisition control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410583985.5A CN104267301B (en) | 2014-10-27 | 2014-10-27 | Power consumer electricity consumption information acquisition control system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104267301A CN104267301A (en) | 2015-01-07 |
| CN104267301B true CN104267301B (en) | 2015-12-30 |
Family
ID=52158841
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410583985.5A Active CN104267301B (en) | 2014-10-27 | 2014-10-27 | Power consumer electricity consumption information acquisition control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104267301B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105067857B (en) * | 2015-08-21 | 2018-06-19 | 南方电网科学研究院有限责任公司 | Power information acquisition system and analysis method |
| CN106325240B (en) * | 2016-06-30 | 2018-10-16 | 浙江汉华节能技术有限公司 | Intelligent and safe power consumption management apparatus and system based on communication |
| CN107993004A (en) * | 2017-11-30 | 2018-05-04 | 北京汇通金财信息科技有限公司 | A kind of power information processing system and method |
| CN113991682A (en) * | 2021-09-30 | 2022-01-28 | 国网山东省电力公司武城县供电公司 | Power load control system and method combined with electricity testing device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005017632A3 (en) * | 2003-08-18 | 2009-04-30 | Power Monitors Inc | A system and method for providing remote monitoring of voltage power transmission and distribution devices |
| CN202495139U (en) * | 2011-10-31 | 2012-10-17 | 上海万康无线智能控制系统有限公司 | Ammeter data GPRS collecting system |
| CN202634072U (en) * | 2012-05-17 | 2012-12-26 | 辽宁省电力有限公司大连供电公司 | Automatic device for power distribution network |
| CN103138394A (en) * | 2011-11-30 | 2013-06-05 | 北京博纳电气有限公司 | Resident smart power utilization management system and device based on 3rd generation telecommunication (3G) network |
| CN103325225A (en) * | 2013-05-23 | 2013-09-25 | 合肥工业大学 | Embedded wireless computer room monitoring system and monitoring method therefor |
| CN203243115U (en) * | 2012-12-07 | 2013-10-16 | 思源清能电气电子有限公司 | Remote monitoring system based on multiple on-site electric energy quality apparatuses |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011012146A1 (en) * | 2009-07-30 | 2011-02-03 | Prysmian S.P.A. | Method and system for monitoring a cable system of an electric power transmission system |
| US8665061B2 (en) * | 2009-08-05 | 2014-03-04 | Electro Industries/Gauge Tech | Intelligent electronic device having user-authenticating capabilities |
| CN102841293B (en) * | 2011-05-30 | 2015-04-01 | 上海励谙电子技术有限公司 | Fault positioning system for 10kV power distribution network circuit |
| CN103312575A (en) * | 2012-03-13 | 2013-09-18 | 周治江 | Master-slave cascade concentrator |
| US9686324B2 (en) * | 2013-03-25 | 2017-06-20 | Kirusa, Inc. | System and method for establishing communication links between mobile devices |
| CN203217034U (en) * | 2013-03-28 | 2013-09-25 | 国家电网公司 | Grounding fault positioning system for power distribution network |
| CN203217033U (en) * | 2013-03-28 | 2013-09-25 | 国家电网公司 | Fault positioning and diagnosing system for power distribution network |
| CN203275579U (en) * | 2013-05-28 | 2013-11-06 | 国家电网公司 | On-line monitoring system of power cable partial discharge |
| CN103308830B (en) * | 2013-05-28 | 2016-08-17 | 国家电网公司 | Power cable partial discharge monitoring system |
| CN104088306A (en) * | 2014-07-04 | 2014-10-08 | 苏州科技学院 | Wireless monitoring and early warning system for deep foundation pit comprehensive parameters |
-
2014
- 2014-10-27 CN CN201410583985.5A patent/CN104267301B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2005017632A3 (en) * | 2003-08-18 | 2009-04-30 | Power Monitors Inc | A system and method for providing remote monitoring of voltage power transmission and distribution devices |
| CN202495139U (en) * | 2011-10-31 | 2012-10-17 | 上海万康无线智能控制系统有限公司 | Ammeter data GPRS collecting system |
| CN103138394A (en) * | 2011-11-30 | 2013-06-05 | 北京博纳电气有限公司 | Resident smart power utilization management system and device based on 3rd generation telecommunication (3G) network |
| CN202634072U (en) * | 2012-05-17 | 2012-12-26 | 辽宁省电力有限公司大连供电公司 | Automatic device for power distribution network |
| CN203243115U (en) * | 2012-12-07 | 2013-10-16 | 思源清能电气电子有限公司 | Remote monitoring system based on multiple on-site electric energy quality apparatuses |
| CN103325225A (en) * | 2013-05-23 | 2013-09-25 | 合肥工业大学 | Embedded wireless computer room monitoring system and monitoring method therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104267301A (en) | 2015-01-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104267301B (en) | Power consumer electricity consumption information acquisition control system | |
| CN203734848U (en) | Internet of Things gateway | |
| CN109347210A (en) | Accommodation electricity usage wisdom control system | |
| CN206041930U (en) | Photovoltaic system | |
| WO2015020694A1 (en) | Plc based thermostat temperature control for heating systems | |
| CN105098991B (en) | A kind of low-voltage distributing line on-line monitoring system | |
| CN204669086U (en) | Communication power supply monitoring data collection device and system thereof | |
| CN204154830U (en) | A kind of power consumer electricity consumption information acquisition control system | |
| CN204928368U (en) | Monitor terminal and three phase load self -balancings allotment system that uses this terminal | |
| CN204334123U (en) | Intelligent power network power transmission and transforming equipment on-Line Monitor Device | |
| CN210640693U (en) | Digital controller device for micro-grid | |
| CN109787683B (en) | Wireless looped network emergency power supply photoelectric conversion equipment | |
| CN203504298U (en) | Power distribution equipment monitoring device based on self-organizing network and power line network | |
| CN202817907U (en) | Distribution system end intelligent power consumption monitoring device | |
| CN105044477A (en) | Motor phase failure on-line detection early warning device | |
| CN204190490U (en) | A kind of guarantor's level platform power information synthetical collection system | |
| CN109560586A (en) | The heap Configuration Online that charges and diagnostic system and working method | |
| CN109599939A (en) | Power supply monitoring system | |
| CN204858748U (en) | Clamp plate monitoring host with distant place switching function | |
| CN203206262U (en) | Component type universal data relay device for monitoring operating state of main electrical equipment | |
| CN203397502U (en) | Monitoring system for power distribution equipment | |
| CN203786550U (en) | Intelligent power switch | |
| CN205141834U (en) | Monitored control system between station that flexible direct current current conversion station automatic monitoring system station LAN net extends | |
| CN212435437U (en) | Accurate energy supply device of electrical apparatus as required | |
| CN204066380U (en) | Based on the carrier power meter supervisory system of low pressure concentrator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |