CN201497800U - Automatic testing device for meter reading system - Google Patents
Automatic testing device for meter reading system Download PDFInfo
- Publication number
- CN201497800U CN201497800U CN2009200162335U CN200920016233U CN201497800U CN 201497800 U CN201497800 U CN 201497800U CN 2009200162335 U CN2009200162335 U CN 2009200162335U CN 200920016233 U CN200920016233 U CN 200920016233U CN 201497800 U CN201497800 U CN 201497800U
- Authority
- CN
- China
- Prior art keywords
- loop
- testing
- voltage
- collector
- carrier wave
- 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 - Lifetime
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 79
- 238000004891 communication Methods 0.000 claims abstract description 22
- 238000009434 installation Methods 0.000 claims description 33
- 230000005540 biological transmission Effects 0.000 abstract description 8
- 238000013480 data collection Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 11
- 238000012423 maintenance Methods 0.000 description 5
- 230000008901 benefit Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009432 framing Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Landscapes
- Selective Calling Equipment (AREA)
Abstract
The utility model relates to an automatic testing device for a meter reading system, which comprises a case body (1). A voltage testing loop, a current testing loop, a collector, an Rs485 communication interface testing loop and a collector of an electronic meter, a carrier wave electronic meter, and a carrier wave testing loop of a concentrator are arranged inside the case body (1), a control panel (2) is arranged at the middle part of the case body (1), and a mesh wire interface is arranged on the control panel (2). The automatic testing device has simple and flexible operation, and can synchronously receive and process the data from multiple/all data collection points without wiring for many times, so as to well meet the requirements of the meter reading system for real-time data collection and transmission. The automatic testing device can remotely control testing equipment, so as to facilitate long-distance participation in the testing work for equipment manufacturers. Because the voltage testing loop can conduct secondary control and conduct parameter adjustment, on/off and other control operations in a voltage source output device, the device remarkably improves the safety of operators and the variability of voltage output parameter.
Description
Technical field
The utility model relates to a kind of robotization centralized meter-reading system proving installation.
Background technology
Continuous expansion along with resident's centralized meter-reading system range of application, the city progressively implementation that Every household has an ammeter makes, the later maintenance workload of robotization centralized meter-reading system sharply increases, more copy application work and bring difficulty to the collection of power department, electricity consumption department presses for advanced way of working and testing tool improves the management level that the robotization collection is copied application, improve success ratio, the realization robotization is read the ammeter directly, and the management of power use is standardized more with scientific.And then reduce the increase electric power economic benefit of department of line loss.And be the effect work of adopting before original " setting up a stall " form is copied equipment and installed collection, needing equipment carried out preliminary works such as wiring before the test, there is hidden danger in long and secure context of time. in the pastMainly there is following problem: 1, concentrator was needed it is carried out resetting of server ip address before installation in the past, ID number of concentrator reset, also to carry out the connection test of GPRS after resetting, the carrier test of down channel.The wiring of these tests all is a patch, also patch will be removed after the test, and each wiring all will be wasted certain lead and connection, and wiring does not have security.2, before installation, need carrier communication ability to collector to collector, effect work before the Ra485 communication port is installed, to guarantee that the equipment after the installation normally moves, the employing patch was all said in the wiring of collector in the past, also patch will be removed after the test, it is dangerous again promptly to waste lead.3, long-term working experience shows, before to carrier wave meter meter and the installation of electronic watch meter, carry out the test of carrier capability and 485 communication ports, hidden fault that can abatement apparatus, prevent that the carrier wave electronic watch of carrier failure and the electronic watch of 485 faults are mounted away, cause the operational difficulties of later maintenance, therefore we will carry out the effect test to carrier wave meter to be installed and electronic watch before installation, and what adopted is provisional wiring in the past equally, the low and shortage security of work efficiency.4, adopt provisional wiring to carry out effect separately or to be with single collector, carrier wave meter to carry out effect to concentrator, collector, carrier wave meter, electronic watch, the ubiquity that lacks test, lack the uniting and adjustment function of integral device, can not carry out effect by the simulated field state.Therefore, development and to make the automated debug device of the various device can satisfy centralized meter-reading system imperative.To improve our centralized meter-reading system application level, reduce collection and copy breakdown rate.Improve the effect level of centralized meter-reading system equipment, take leave of original, unsafe test effect method.
The utility model content
The technical problems to be solved in the utility model provides a kind of robotization centralized automatic meter-reading proving installation, and this device has that the test function coverage is big, the characteristics of highly versatile.
In order to solve the problem that prior art exists, the technical solution adopted in the utility model is:
Robotization centralized meter-reading system proving installation, include casing, four independently test loops are installed in the casing, it is respectively the voltage tester loop, the testing current loop, the carrier test loop of the Rs485 communication port test loop of collector, electronic watch and collector, carrier wave electronic watch, concentrator, the middle part of casing 1 is equipped with control panel, has the netting twine interface on the control panel.
Be serially connected with the carrier wave attenuator on the carrier test loop of described collector, carrier wave electronic watch, concentrator.
Described testing current loop is by the input of the electric current on the control panel, lead-out terminal, 4 road testing current terminals are formed, the testing current terminal is located at respectively on the the the 13 tunnel, the 14 tunnel, the 15 tunnel, the 16th drive test examination loop, about screen have the electric current splicing ear to connect the current returns of two screens respectively.
Advantage and effect that the utility model had are:
1, big, the installation of the utility model robotization centralized automatic meter-reading proving installation reduced investment, various test function coverage, convenient in carrying.
2, the utility model robotization centralized automatic meter-reading proving installation highly versatile, except that can testing to GPRS concentrator, PLC485 collector, carrier wave electronic watch, Ra485 electronic watch, can also be to testing equipments such as GPRS multifunctional meter, distribution transformer terminals.
3, few, the instant effect of the utility model robotization centralized automatic meter-reading proving installation front-end investment, later stage upgrading, maintenance cost are low, applied range, capacity is big, message transmission rate is high, no communication fee, Long-distance Control.Be fit to various lots of automatic automatic meter reading system, measuring technology is incorporated into a device to use in the robotization kilowatt meter reading-out system, solved present centralized meter-reading system data feedback channel, down going channel safeguard and new installation process in the drawback that exists, the centralized meter-reading system maintenance levels improved and optimize.
4, the utility model robotization centralized automatic meter-reading proving installation has the multi-channel test lead-out terminal, need not the data that the samsara wiring just can receive synchronously, handle a plurality of all data collection points, can well satisfy the requirement of system to data collection and transmission real-time.
5, the utility model robotization centralized automatic meter-reading proving installation can be realized the secondary control to the voltage tester loop, and in control operations such as the enterprising line parameter adjustment of voltage source output unit, switches.The security of personnel operation and the changeability of voltage output parameter have been improved greatly.The mentality of designing in voltage tester loop has taken into full account the diversity of voltage tester equipment, make the voltage tester loop have controllability simultaneously, the independent control loop on every road makes voltage tester have alternative, and the monitored meter loop is intuitively shown voltage circuit.Guaranteed that voltage circuit has overall security.About screen the convenience of having considered resettlement is set respectively, left and right sides splicing ear has been considered the loop quarantine measures of each loop when device resettlement or removal, trouble hunting.
6, the utility model robotization centralized automatic meter-reading proving installation about screen have the electric current splicing ear to connect the current returns of two screens respectively, make things convenient for the service work of carrying, removal, equipment.
7, the utility model robotization centralized automatic meter-reading proving installation is connected in series the carrier wave attenuator in the carrier test loop, be used for the carrier signal decay that analog line impedance and capacitive load impedance produce, differentiate collector with this, the carrier signal attenuation degree of carrier wave electronic watch, this test job is for the table meter in new installation and the later maintenance work, collector more changes jobs very important, with respect to the little collector of the decay of carrier signal in testing experiment, we can be installed to the zone far away apart from concentrator the carrier wave electronic watch, on the contrary, big we of carrier signal can be installed to the zone nearer apart from concentrator.
8, the utility model robotization centralized automatic meter-reading proving installation provides local MIS network interface and Rs232 serial ports, and convenient test inserts with notebook computer; Reserve 220V alternating voltage accessory power outlet; Voltage, current input terminal can insert with multiple voltage, current source output device instrument coupling, and research technique, method are versatile and flexible.
9, the utility model robotization centralized automatic meter-reading proving installation can be exported 16 voltage circuits simultaneously, every road voltage circuit all has control loop independently to control, and light prompt is arranged, can be that 16 collectors, concentrator, carrier wave electronic watch, 485 electronic watches are tested effect work simultaneously, also can in 16 road voltage circuits, mix access concentrator, collector, carrier wave electronic watch, 485 electronic watches, make and form an independent collection of units copy system between them.
10, the utility model robotization centralized automatic meter-reading proving installation the the 13 tunnel, the 14 tunnel, the 15 tunnel, the 16 tunnel also is furnished with electric current output, input terminal except that voltage output is arranged, and has adapted to and reserved the equipment such as concentrator that have the current sample module future.
11, the multiple communication connected mode of the utility model robotization centralized automatic meter-reading proving installation has adapted to the various communications between concentrator, collector, carrier wave electronic watch, 485 electronic watches, wherein, the Rs232 serial ports can be connected the setting of carrying out the IP address or concentrator is simulated the copy reading data by microcomputer, notebook computer with concentrator; The Rs485 order circuit is connected to each other, and the Rs485 terminal by each loop can carry out 485 communication copy readings test to the concentrator in the proving installation loop, collector, electronic watch; The control panel of proving installation has the netting twine interface, conveniently local MIS net is inserted notebook computer formation and destroies the platform district with the test unit collection that tested collection is copied the equipment composition.
12, the utility model robotization centralized automatic meter-reading proving installation utilizes TP800 palm PC+copy control device can carry out carrier wave copy reading test to the collector in 16 tunnel, carrier wave meter by the voltage terminal on the control panel.16 groups of primary voltage loops have secondary control loop, the output of controlling each road voltage with close, increase the security of test loop, the input of inlet voltage at first inserts 4P air P cock, the short trouble that takes place in the cut-off loop protects single unit system not to be damaged rapidly; The control panel interface satisfies the access of multiple voltage source, current source, adapts to the access demand of different proving installations; Device has also been reserved the demand of later stage function expansion.
13, the utility model robotization centralized automatic meter-reading proving installation is easy and simple to handle, flexible, because device has the multi-channel test lead-out terminal, so need not the data that the samsara wiring just can receive synchronously, handle a plurality of/all data collection points, can well satisfy the requirement of centralized meter-reading system to data collection and transmission real-time.Also can realize testing apparatus is carried out Long-distance Control by the GPRS mobile network, carry out control operations such as parameter adjustment, make things convenient for the long-range participation test job of equipment producer.Because the additional secondary control of the test loop of voltage can be in control operations such as the enterprising line parameter adjustment of voltage source output unit, switches, device has improved the security of personnel operation and the changeability of voltage output parameter greatly.The mentality of designing in voltage tester loop has taken into full account the diversity of voltage tester equipment, make the voltage tester loop have controllability simultaneously, the independent control loop on every road makes voltage tester have alternative, and the monitored meter loop is intuitively shown voltage circuit.
14, the utility model robotization centralized automatic meter-reading proving installation can be that 16 concentrators carry out resetting of IP address simultaneously, and efficient is 16 times of former patch method.
Description of drawings
Fig. 1 is voltage tester loop terminals figure;
Fig. 2 is testing current loop terminals figure;
Fig. 3 is the Rs485 communication port test loop terminal figure of collector, electronic watch;
Fig. 4 is the carrier test circuit theory figure of collector, carrier wave electronic watch, concentrator;
Fig. 5 is the one-piece construction synoptic diagram of this usefulness novel automatic centralized meter-reading system proving installation;
Fig. 6 is Rs485 communication test circuit theory figure.
Wherein: casing 1; Control panel 2; Carrier wave attenuator 3.
Embodiment
As shown in Figure 5, the utility model robotization centralized meter-reading system proving installation includes casing 1, four independently test loops are installed in the casing 1, it is respectively the voltage tester loop, the testing current loop, the carrier test loop of the Rs485 communication port test loop of collector, electronic watch and collector, carrier wave electronic watch, concentrator, the middle part of casing 1 is equipped with control panel 2, has the netting twine interface on the control panel 2.6 groups of external input test terminals, totally 36 drive tests examination lead-out terminal.
Voltage tester loop as shown in Figure 1 has 16 groups of lead-out terminals, and every group all has the switching that secondary control loop controls this group voltage source to open and close, and the voltage general supply possesses the single-phase handoff functionality of three-phase, to adapt to different tested equipment.Its principle of work is: various input voltage sources are by DZ47-63A air P cock or the input of four look lotus flower terminals, DYCJ opens contact through voltage circuit overhead control relay, BC two-phase is wherein passed through the contact that closes of the single-phase transfer relay QHCJ of three-phase again, voltage circuit is assigned on 16 groups of voltage tester loops afterwards, the switching of power supply is controlled in 16 groups of voltage tester loops respectively by secondary control loop separately, and all there is the state of pilot lamp instructed voltage power supply in every group of voltage tester loop, about screen have special-purpose splicing ear connecting voltage tester loop, the left and right sides respectively, be the ease of assembly carrying, the service work when shielding fault about making things convenient for again; In addition, the voltage tester loop also has two secondary control loops, one group of control general supply wherein, the single-phase function of three-phase are switched (DYCJ/DYKG, ZHCJ/ZHKG), the switching (1CJ/1TA, 2CJ/2TA, 3CJ/3TA, 4CJ/4TA, 5CJ/5TA, 6CJ/6TA, 7CJ/7TA, 8CJ/8TA, 9CJ/9TA, 10CJ/10TA, 11CJ/11TA, 12CJ/12TA, 13CJ/13TA, 14CJ/14TA, 15CJ/15TA, 16CJ/16TA) of another group control 16 road voltages output; On the total voltage test loop, also has the voltage indicating instrument loop, function comprises: the indication of AN voltage, the indication of BN voltage, the indication of CN voltage, the indication of AB voltage, the indication of BC voltage, the indication of CA voltage, and they switch the indication that grip switches is switched each road voltage by 1QH; On the total voltage main line, also be equiped with electric voltage frequency indication loop, indicate the same each road handoff functionality that has equally with voltage.
Testing current loop as shown in Figure 2 is by the input of the electric current on the control panel, lead-out terminal, 4 road testing current terminals are formed, the testing current terminal is located at respectively on the the the 13 tunnel, the 14 tunnel, the 15 tunnel, the 16th drive test examination loop, about screen have the electric current splicing ear to connect the current returns of two screens respectively, make things convenient for the service work of carrying, removal, equipment.
The principle of work of the Rs485 communication port test loop of the collector shown in Fig. 3,6, electronic watch: send the communication protocol that sets by the 80C31-11 transmit leg message framing is formed 485 data link frame by appointment data link transmission agreement.Sent packet.To 485 bus write datas the time, the write address request of testing apparatus elder generation, then, all collectors and 485 electronic watch equipment all can receive to have only the equal with it device port in address to open other equipment Close Alls.Realize that thus testing apparatus communicates by letter with the transmission between collector, 485 electronic watches.After asking successfully, the address that collector, 485 electronic watches should be able to detect on the bus is identical with self address, and collector, 485 electronic watches just can be opened to send and interrupt, and could send data.Receive under the wrong situation if testing apparatus is not reported, communication frame receives under the situation about having begun, and the device report character receives mistake, and should abandon this frame this moment, and 485 Communications failures of collector, electronic watch are judged in the reception of end frame thus.If the byte number of length field back is not equal to length field indication, and also is not equal to length field and adds at 2 o'clock, the indicating length mistake is made invalid frame.Frame length is considered as invalid frame less than the frame of the length of frame head.When the character number that receives surpasses 485 maximum communication frame byte numbers, also think the reception mistake, judge 485 Communications failures of collector, electronic watch thus.If the take over party is when receiving frame data, when not receiving a frame, surpassing 2 cycle 20ms does not have data to arrive yet, thinks that then these frame data receive end, judge 485 Communications failures of collector, electronic watch thus.Carry out under the situation of verification allowing, the frame that receives is carried out CRC check.If the check results of check field and frame is not inconsistent, think that frame makes mistakes, judge 485 Communications failures of collector, electronic watch thus.In the frame head, when destination address and receiving element do not match, abandon this frame.Judge 485 Communications failures of collector, electronic watch thus.
Be serially connected with carrier wave attenuator 3 on the carrier test loop of collector as shown in Figure 4, carrier wave electronic watch, concentrator.Collector, the carrier wave electronic watch, the carrier test circuit's principle of concentrator: when the TP800 palm PC sends data to single-chip microcomputer, its digital signal is by the TXD end output of RS232, level transferring chip MAX232 is converted into Transistor-Transistor Logic level, import the Pin17 of PLC38I or PLC38II into, the Pin 5 (TX/RX) that control PLC38 I or PLC38 II this moment is a high level, chip is in the data-modulated state, to be modulated to the sinusoidal simulating signal of 270kHz from the digital signal of Pin17 input, export through the Pin10 (I/O) from chip after the power amplification, by the signal coupling transformer this simulating signal is coupled on the low pressure 220V electrical network at last, realizes the transmission of data.At data receiver, the PLC38I that control links to each other with single-chip microcomputer or the Pin5 of PLC38II chip are low level, make it be in demodulation state, will be demodulated into digital signal from the simulating signal that electrical network transmits and carry out for single-chip microcomputer; When single-chip microcomputer when host computer sends data, the Pin5 of PLC38 I that control links to each other with single-chip microcomputer or PLC38 II chip is a high level, make it send data, controlling the PLC38 I that links to each other with host computer or the Pin5 of PLC38 II simultaneously is low level, the slave computer data that demodulation is come from power line transmission are imported the RXD end of RS232 again into from Pin 12; Serial connection carrier wave attenuator is the carrier signal decay for analog line impedance and capacitive load impedance generation, differentiate the carrier signal attenuation degree of collector, carrier wave electronic watch with this, can be installed to the zone far away with respect to little collector, the carrier wave electronic watch of the decay of carrier signal in testing experiment apart from concentrator, what on the contrary, carrier signal was big can be installed to the zone nearer apart from concentrator.
Claims (3)
1. robotization centralized meter-reading system proving installation, it is characterized in that including casing (1), four independently test loops are installed in the casing (1), it is respectively the voltage tester loop, the testing current loop, the carrier test loop of the Rs485 communication port test loop of collector, electronic watch and collector, carrier wave electronic watch, concentrator, the middle part of casing (1) is equipped with control panel (2), and control panel has the netting twine interface on (2).
2. robotization centralized meter-reading system proving installation according to claim 1 is characterized in that being serially connected with carrier wave attenuator (3) on the carrier test loop of described collector, carrier wave electronic watch, concentrator.
3. robotization centralized meter-reading system proving installation according to claim 1, it is characterized in that described testing current loop is made up of the electric current input on the control panel, lead-out terminal and 4 road testing current terminals, the testing current terminal is located at respectively on the the the 13 tunnel, the 14 tunnel, the 15 tunnel, the 16th drive test examination loop, about screen have the electric current splicing ear to connect the current returns of two screens respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200162335U CN201497800U (en) | 2009-08-11 | 2009-08-11 | Automatic testing device for meter reading system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200162335U CN201497800U (en) | 2009-08-11 | 2009-08-11 | Automatic testing device for meter reading system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201497800U true CN201497800U (en) | 2010-06-02 |
Family
ID=42441004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200162335U Expired - Lifetime CN201497800U (en) | 2009-08-11 | 2009-08-11 | Automatic testing device for meter reading system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201497800U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102313880A (en) * | 2010-07-09 | 2012-01-11 | 北京市电力公司 | Method and system for testing local communication equipment of power utilization information acquisition system, and master station |
| CN103631690A (en) * | 2013-11-21 | 2014-03-12 | 广东电网公司电力科学研究院 | Electric power collecting and copying device RS485 interface handheld type tester and testing method thereof |
| CN103973517A (en) * | 2014-05-14 | 2014-08-06 | 洛阳愿景科技有限公司 | Dual-mode local communication module device for concentrator |
| CN107544048A (en) * | 2017-07-24 | 2018-01-05 | 杭州华罡智能科技有限公司 | Gather Fault Identification module automatic detection device and detection method |
| CN108508308A (en) * | 2018-05-28 | 2018-09-07 | 南方电网科学研究院有限责任公司 | Automatic testing device with low-voltage meter reading power consumption loading and interchangeability functions |
-
2009
- 2009-08-11 CN CN2009200162335U patent/CN201497800U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102313880A (en) * | 2010-07-09 | 2012-01-11 | 北京市电力公司 | Method and system for testing local communication equipment of power utilization information acquisition system, and master station |
| CN103631690A (en) * | 2013-11-21 | 2014-03-12 | 广东电网公司电力科学研究院 | Electric power collecting and copying device RS485 interface handheld type tester and testing method thereof |
| CN103631690B (en) * | 2013-11-21 | 2016-01-20 | 广东电网公司电力科学研究院 | Electric power collection copies equipment RS485 interface manual testing device and method of testing thereof |
| CN103973517A (en) * | 2014-05-14 | 2014-08-06 | 洛阳愿景科技有限公司 | Dual-mode local communication module device for concentrator |
| CN103973517B (en) * | 2014-05-14 | 2017-02-15 | 洛阳愿景科技有限公司 | Dual-mode local communication module device for concentrator |
| CN107544048A (en) * | 2017-07-24 | 2018-01-05 | 杭州华罡智能科技有限公司 | Gather Fault Identification module automatic detection device and detection method |
| CN107544048B (en) * | 2017-07-24 | 2019-09-10 | 杭州华罡智能科技有限公司 | Acquire fault identification module automatic detection device and detection method |
| CN108508308A (en) * | 2018-05-28 | 2018-09-07 | 南方电网科学研究院有限责任公司 | Automatic testing device with low-voltage meter reading power consumption loading and interchangeability functions |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101907694B (en) | Device and method for testing low-voltage collecting meter reading system | |
| CN201497800U (en) | Automatic testing device for meter reading system | |
| AU2011367734B2 (en) | Electric quantity collection terminal function tester | |
| CN209250634U (en) | Platform area identifying system based on broadband power line carrier and power frequency communication | |
| CN102128977A (en) | Single-phase watt-hour meter supporting two-way communication | |
| CN204243777U (en) | Carry the phase-change switch of phase sequence recognition function | |
| CN103267918B (en) | A kind of remote debugging system of site mount type protective relaying device and method | |
| CN101572442A (en) | Intelligent protection type permanent magnetic contactor capable of performing remote communication | |
| CN105094120A (en) | Testing device capable of simulating action behaviors of primary equipment | |
| CN101893695B (en) | Analog sampling and protocol generating devices | |
| CN201142577Y (en) | Wireless or CAN bus program controlled remote electric load control module | |
| CN104638761A (en) | Packet sensing and packet simulation verification based GOOSE (generic object oriented substation event) virtual terminal connection method | |
| CN204807649U (en) | Tester | |
| CN207677999U (en) | Novel protocol conversion device | |
| CN204008899U (en) | A kind of interchangeability proving installation of power information acquisition terminal communication interface | |
| CN113629879B (en) | Portable SV/GOOSE common-network maintenance isolation device and method | |
| CN205826811U (en) | A kind of aging testing system | |
| CN209248333U (en) | LKJ auxiliary device detection device | |
| CN202150176U (en) | Complementary reading system for residential low-voltage centralized meter reading | |
| CN209786872U (en) | transformer station power consumption parameter acquisition device based on multiple local area wireless communication technologies | |
| CN203287457U (en) | Remote debugging system of on-site installation type protective relaying device | |
| CN203984446U (en) | The interchangeability testing apparatus of a kind of power information acquisition terminal local communication unit | |
| CN204013555U (en) | A kind of interchangeability testing apparatus of power information acquisition terminal telecommunication unit | |
| CN102590657B (en) | Communication capacity test device of intelligent carrier electrical energy meters and test method thereof | |
| CN208369630U (en) | A kind of multi-energy data monitoring system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE ELECTRIC NET CROP. Effective date: 20120929 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120929 Address after: 111000 Liaoyang City, Liaoning province Taizihe District South Street No. 81 Patentee after: Liaoning Electric Power Co., Ltd. Liaoyang Power Supply Company Patentee after: State Grid Corporation of China Address before: 111000 No. 81, south suburb street, Liaoning, Liaoyang Patentee before: Liaoning Electric Power Co., Ltd. Liaoyang Power Supply Company |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100602 |
|
| CX01 | Expiry of patent term |