CN104409978B - Circuit microcurrent query energy consumption reduction system of power distribution cabinet - Google Patents
Circuit microcurrent query energy consumption reduction system of power distribution cabinet Download PDFInfo
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- CN104409978B CN104409978B CN201410714383.9A CN201410714383A CN104409978B CN 104409978 B CN104409978 B CN 104409978B CN 201410714383 A CN201410714383 A CN 201410714383A CN 104409978 B CN104409978 B CN 104409978B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
- H02J13/00019—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using optical means
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention discloses a circuit microcurrent query energy consumption reduction system of a power distribution cabinet. The system comprises a power supply identification system, wherein the power supply identification system comprises a relay or a thyristor, an infrared emission module, an infrared receiving module matched with the infrared emission module, and a shading cover; the infrared emission module is connected to a live wire of a power supply circuit of the power distribution cabinet; the infrared receiving module is connected to a neutral wire of the power supply circuit of the power distribution cabinet; the shading cover sleeves the power supply circuit of the power distribution cabinet; the infrared emission module is provided with two or more infrared emission diodes; one or more infrared emission diodes are positioned in the shading cover and outside the shading cover; the infrared receiving module is also positioned in the shading cover; the infrared emission diodes positioned in the shading cover face to the infrared receiving module. According to the system, the power supply circuit is in an off state when a signal received by the infrared receiving module does not meet the frequency requirement or the signal cannot be received.
Description
Technical field
The invention belongs to power domain is and in particular to damage system drops in a kind of power distribution cabinet circuit micro-current inquiry energy consumption.
Background technology
Power distribution cabinet general control multi-path line is powered.Every route road rear is often connected with substantial amounts of plain conductor, at this
A little plain conductors provide substantial amounts of free electron, cause electric energy loss.Even if therefore we are it will be seen that family electrical equipment all closes
Close, kilowatt-hour meter is still walked about.It can be seen that the energy consumption that these plain conductors cause, very huge.
When original power distribution cabinet is powered it is impossible to be respectively for equipment power, or electric leakage, or someone touch
Electricity.Therefore cannot the electric leakage of active resistance and generation of getting an electric shock.If power system can initiative recognition, and stop electric leakage and get an electric shock,
To can avoid hundreds of millions of economic losses.
Content of the invention
It is an object of the invention to, a kind of power distribution cabinet circuit micro-current inquiry energy consumption fall damage system is provided, above-mentioned to solve
Problem.
Technical problem solved by the invention can employ the following technical solutions to realize:
Power distribution cabinet circuit micro-current inquiry energy consumption fall damage system is it is characterised in that include a power supply identifying system, described confession
Electric identifying system includes a relay or IGCT, the live wire of described relay or IGCT access power distribution cabinet supply line；
Described power supply identifying system also includes an infrared transmission module and supporting with described infrared transmission module infrared
Receiver module, described infrared transmission module accesses the live wire of power distribution cabinet supply line, and described infrared receiving module accesses power distribution cabinet
The zero line of supply line；
Described power supply identifying system also includes a shading sleeve, and described shading sleeve is enclosed within power distribution cabinet supply line, described red
Emission module is provided with least two infrared-emitting diodes, and at least one described infrared-emitting diode is located at described shading sleeve
Interior, at least one described infrared-emitting diode is located at outside described shading sleeve, and described infrared receiving module also is located at described shading
In set, the infrared-emitting diode in described shading sleeve is towards described infrared receiving module；
Described power supply identifying system also includes a signal processing system, and the signal input part of described signal processing system connects
Described infrared receiving module, a control signal output end of described signal processing system connects described relay or brilliant lock
Pipe.
The present invention infrared receiving module receive meet frequency requirement signal when, described signal processing system controls
Described relay or IGCT are in the conduction state, so that described supply line is in the conduction state.In infrared receiving module
When the signal receiving does not meet frequency requirement or does not receive signal, described signal processing system control described relay or
IGCT is off, thus cutting off the cathode power supply incoming end of kilowatt-hour meter, so that described supply line is off.
In addition, this patent is provided with the infrared-emitting diode outside shading sleeve, infrared signal can be sent out, conveniently connect
Enter intelligence control system.
The consistent signal of signal frequency that described signal processing system thinks with described infrared transmission module sends is to meet frequency
The signal that rate requires.When powering for electrical equipment, the cathode power supply incoming end of described kilowatt-hour meter and the negative electricity of described kilowatt-hour meter
Source incoming end is connected, and described infrared receiving module receives the signal that described infrared transmission module sends, described signal transacting system
System controls described relay or IGCT in the conduction state, so that described supply line is in the conduction state.
When electric leakage occurring or getting an electric shock, described infrared receiving module does not receive the letter that described infrared transmission module sends
Number, described infrared transmission module controls described relay or IGCT to be in not on-state, so that at described supply line
In off-state.
The occurrence frequency of described infrared transmission module is less than 5 hertz.With reduces cost.Described power supply identifying system passes through one
Transformer accesses civil power.To realize electrical isolation.
Power distribution cabinet circuit micro-current inquiry energy consumption fall damage system also includes a key switch, and described key switch connects described
Signal processing system.The control hierarchy of key switch is higher than the control hierarchy of infrared receiving module, can be in described infrared receiver
Module receives under the premise of electric signal, realizes the cut-out of infrared receiving module.
Power distribution cabinet circuit micro-current inquiry energy consumption fall damage system, also includes a load current regulating system, described load electricity
Stream regulating system includes a control module, and described control module is provided with a control signal output end, and described control module passes through control
Signal output part processed connects a voltage-adjusting unit, and the signal output part of described voltage-adjusting unit connects a current control letter
Number processing module；
Described supply line is provided with a constant current output circuit, and described current control receives described voltage with signal processing module
The Regulate signal of adjustment unit, and Regulate signal is analyzed process after, export to constant current output circuit, realize described constant current
The regulation of output circuit output current.
Described current control connects described signal processing system with signal processing module, and described signal processing system passes through institute
State infrared transmission module and communicate to connect a host computer.To provide the basis uploading data.
Described control module is additionally provided with a control signal input, and described control signal input connects described signal transacting
System；
It is provided with the control signal phase of an output valve containing constant current output circuit and voltage-adjusting unit in described host computer
The electric current regulation static database of coupling, described host computer judges to need the output valve of the constant current output circuit of regulation, searches
Described control signal is passed to described control module by described signal processing system by the control signal matching, then by institute
State control module to export to described voltage-adjusting unit, realize the regulation to constant current output circuit output current.
It is additionally provided with a dynamic data base, described host computer input signal to external world is recorded in described host computer, and
It is stored in dynamic data base, dynamic data base is extended in use, constitute a dynamic number with Self-learning Model
According to storehouse；Described host computer judges to need the output valve of the constant current output circuit of regulation, constantly learns according in dynamic data base
To the value output control signal that matches of the output valve of constant current output circuit and the control signal of voltage-adjusting unit, by institute
State signal processing system and described control signal is passed to described control module, then exported to described voltage by described control module
Adjustment unit, realizes the regulation to constant current output circuit output current.
Described current control signal processing module to the processing mode of Regulate signal can using short circuit output, filtering,
The signal processing modes such as signal limiter, signal conversion.To realize eliminating interference, signal shaping.Here Regulate signal can be
The electrical signal form such as voltage, electric current, pwm, frequency.
Described voltage-adjusting unit receives the control signal of described control module output, adjusts the ah (highest of Regulate signal
Value) equivalent between end and aw (Regulate signal) end and between aw (Regulate signal) end and al (minimum of Regulate signal) end
Resistance value, realizes output to the control of the Regulate signal of described current control signal processing module.Here Regulate signal can
To be the electrical signal form such as voltage, electric current, pwm, frequency.
Between the ah end of described voltage-adjusting unit and aw end and be the circuit being equivalent to resistance between aw end and al end
Or chip, and equivalent resistance value is adjusted according to the output signal of described control module.
Also include a reference voltage module, orv+ (output voltage maximum) end of described reference voltage module, orv- are (defeated
Go out voltage minimum) hold ah end, the al end connecting described voltage-adjusting unit respectively, to control described voltage regulator module
Output signal is in the range of setting.The requirement of the Regulate signal being exported with signal processing module according to described current control produces
Reference voltage.
It is also connected with a divider resistance between the ah end of described voltage-adjusting unit and the orv+ end of described reference voltage module,
It is connected another divider resistance, described in two between the al end of described voltage-adjusting unit and the orv- end of described reference voltage module
The ah end of divider resistance and described voltage-adjusting unit, al end, aw end constitute a bleeder circuit.Described reference voltage module output
Voltage through described bleeder circuit partial pressure, output regulation signal gives described current control signal processing module, described to determine
The output signal of current control signal processing module is in set scope.Here, the Regulate signal of output be voltage,
The signal forms such as pwm.
The control signal that the Regulate signal of described voltage-adjusting unit output can also be exported by described control module is controlled
System.
Described control module connects voltage-adjusting unit described at least two, and voltage-adjusting unit described at least two is respectively
Connect a current control signal processing module, described constant current is connected respectively by described current control signal processing module defeated
Go out circuit；Also include at least two reference voltage modules, between at least two reference voltage modules and described voltage-adjusting unit
It is respectively equipped with divider resistance.Realize a control module and control two constant current output circuits.
Described control module adopts the intelligent cells such as mcu (microcontroller) or Digital Logical Circuits, switch electricity
Road, analog regulation etc. can adjust the interface circuit of working condition.
Described current control signal processing module and described constant current output circuit can receive described control module respectively
The electric signal of output, and its working condition is adjusted according to the electric signal of described control module output.
Brief description
Fig. 1 is the circuit block diagram of the present invention.
Specific embodiment
Below, a kind of power distribution cabinet circuit micro-current inquiry energy to the present invention according to specification drawings and specific embodiments
Consumption fall damage system is further described in detail.
Power distribution cabinet circuit micro-current inquiry energy consumption fall damage system, including a power supply identifying system, power supply identifying system includes
One relay or IGCT 11, relay or IGCT 11 access the live wire of power distribution cabinet supply line；Power supply identifying system is also wrapped
Include an infrared transmission module 9 and an infrared receiving module 12 supporting with infrared transmission module 9, infrared transmission module 9 accesses joins
The zero line of electricity Gui supply line, infrared receiving module 12 accesses the live wire of power distribution cabinet supply line, and power supply identifying system also includes
One signal processing system 13, the signal input part of signal processing system 13 connects infrared receiving module 12, signal processing system 13
A control signal output end connect relay or IGCT 11.The present invention meets frequency what infrared receiving module 12 received
During the signal requiring, signal processing system 13 control relay or IGCT 11 are in the conduction state, so that at supply line
In conducting state.When the signal receiving in infrared receiving module 12 does not meet frequency requirement or does not receive signal, signal
Processing system 13 control relay or IGCT 11 are off, thus cutting off the cathode power supply incoming end of kilowatt-hour meter, make
Supply line is off.Power supply identifying system also includes a shading sleeve, and shading sleeve is enclosed within power distribution cabinet supply line, red
Emission module is provided with least two infrared-emitting diodes, and at least one infrared-emitting diode is located in shading sleeve, at least
One infrared-emitting diode is located at outside shading sleeve, and infrared receiving module also is located in shading sleeve, infrared in shading sleeve
Emitting diode is towards infrared receiving module.
The consistent signal of signal frequency that signal processing system 13 thinks with infrared transmission module 9 sends is to meet frequency requirement
Signal.When powering for electrical equipment 8, the cathode power supply incoming end of kilowatt-hour meter is connected with the negative power supply incoming end of kilowatt-hour meter,
Infrared receiving module 12 receives the signal that infrared transmission module 9 sends, signal processing system 13 control relay or IGCT
11 is in the conduction state, so that supply line is in the conduction state.When electric leakage occurring or getting an electric shock, infrared receiving module 12 connects
Can not receive the signal that infrared transmission module 9 sends, infrared transmission module 9 control relay or IGCT 11 are in and are not turned on shape
State, so that supply line is off.
The occurrence frequency of infrared transmission module 9 is less than 5 hertz.With reduces cost.
Power distribution cabinet circuit micro-current inquiry energy consumption fall damage system also includes a key switch 10, and key switch connects at signal
Reason system.The control hierarchy of key switch is higher than the control hierarchy of infrared receiving module, can connect in described infrared receiving module
Receive under the premise of electric signal, realize the cut-out of infrared receiving module.
Power distribution cabinet circuit micro-current inquiry energy consumption fall damage system, also includes a load current regulating system, load current is adjusted
Section system includes a control module 6, and control module 6 is provided with a control signal output end, and control module 6 is exported by control signal
End connects a voltage-adjusting unit 2, and the signal output part of voltage-adjusting unit 2 connects current control signal processing module 5.
Supply line is provided with a constant current output circuit 7, and current control is believed with the regulation of signal processing module 5 receiving voltage adjustment unit 2
Number, and Regulate signal is analyzed process after, export to constant current output circuit 7, realize constant current output circuit 7 output current
Adjust.The present invention can adjust output current, to adapt to the power demands of the electrical equipment 8 of multiple brands, multiple model.Electric current control
System connects signal processing system 13 with signal processing module 5, and signal processing system 13 communicates to connect one by infrared transmission module 9
Host computer.In power supply process, current parameters, power-on time, electrical equipment model, owner information are uploaded by signal processing system 13
Host computer.
Control module 6 is additionally provided with a control signal input, and control signal input connects signal processing system 13；Upper
It is provided with the electric current that the control signal of an output valve containing constant current output circuit 7 and voltage-adjusting unit 2 matches in machine to adjust
With static database, host computer judges to need the output valve of the constant current output circuit 7 of regulation, searches the control signal matching,
Control signal is passed to by control module 6 by signal processing system 13, then exports to voltage-adjusting unit 2 by control module 6,
Realize the regulation to constant current output circuit 7 output current.
It is additionally provided with a dynamic data base in host computer, host computer input signal to external world is recorded, and be stored in dynamic
Database, dynamic data base is extended in use, constitutes a dynamic data base with Self-learning Model；Upper
Machine judges to need the output valve of the constant current output circuit 7 of regulation, constantly learns the constant current output obtaining in foundation dynamic data base
The value output control signal that the control signal of the output valve of circuit 7 and voltage-adjusting unit 2 matches, by signal processing system
Control signal is passed to control module 6 by 13, then is exported to voltage-adjusting unit 2 by control module 6, realizes to constant current output electricity
The regulation of road 7 output current.
Current control signal processing module 5 can be using short circuit output, filtering, signal to the processing mode of Regulate signal
The signal processing modes such as amplitude limit, signal conversion.To realize eliminating interference, signal shaping.Here Regulate signal can be voltage,
The electrical signal form such as electric current, pwm, frequency.Voltage-adjusting unit 2 receives the control signal of control module 6 output, adjusts ah and (adjusts
The peak of section signal) hold and aw (Regulate signal) end between and aw (Regulate signal) end and al (minimum of Regulate signal)
Equivalent resistance between end, realizes output to the control of the Regulate signal with signal processing module 5 for the current control.Here tune
Section signal can be the electrical signal form such as voltage, electric current, pwm, frequency.Between the ah end of voltage-adjusting unit 2 and aw end and
It is circuit or the chip being equivalent to resistance between aw end and al end, and adjusted according to the output signal of control module 6 equivalent
Resistance value.Also include a reference voltage module 1, orv+ (output voltage maximum) end of reference voltage module 1, orv- (output
Voltage minimum) the end ah end of connection voltage-adjusting unit 2, al end respectively, so that the output signal of control voltage adjusting module
In the range of setting.The requirement of the Regulate signal being exported with signal processing module 5 according to current control produces reference voltage.Electricity
It is also connected with a divider resistance 3 between the ah end of pressure adjustment unit 2 and the orv+ end of reference voltage module 1, voltage-adjusting unit 2
It is connected another divider resistance 4, two divider resistances and voltage-adjusting unit 2 between al end and the orv- end of reference voltage module 1
Ah end, al end, aw end constitute a bleeder circuit.The voltage of reference voltage module 1 output is adjusted through bleeder circuit partial pressure, output
Signal to current control signal processing module 5, to determine the output signal of current control signal processing module 5 set
In the range of.Here, the Regulate signal of output is the signal forms such as voltage, pwm.The Regulate signal of voltage-adjusting unit 2 output
The control signal that can also be exported by control module 6 controls.
Control module 6 connects at least two voltage-adjusting units 2, and at least two voltage-adjusting units 2 connect an electricity respectively
Flow control signal processing module 5, connects constant current output circuit 7 by current control respectively with signal processing module 5；Also include
At least two reference voltage modules 1, are respectively equipped with partial pressure electricity between at least two reference voltage modules 1 and voltage-adjusting unit 2
Resistance.Realize a control module 6 and control two constant current output circuits 7.Control module 6 adopts the intelligence such as mcu (microcontroller) single
First or Digital Logical Circuits, on-off circuit, analog regulation etc. can adjust the interface circuit of working condition.Electricity
Flow control signal processing module 5 and constant current output circuit 7 can receive the electric signal that control module 6 exports respectively, and according to
The electric signal of control module 6 output adjusts its working condition.
General principle and principal character and the advantages of the present invention of the present invention have been shown and described above.The skill of the industry
The simply explanation it should be appreciated that the present invention is not restricted to the described embodiments, described in above-described embodiment and specification for the art personnel
The principle of the present invention, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, these
Changes and improvements both fall within scope of the claimed invention.Claimed scope by appending claims and
Its equivalent thereof.
Claims (10)
1. power distribution cabinet circuit micro-current inquiry energy consumption fall damage system is it is characterised in that include a power supply identifying system, described power supply
Identifying system includes a relay or IGCT, the live wire of described relay or IGCT access power distribution cabinet supply line；
Described power supply identifying system also includes an infrared transmission module and an infrared receiver supporting with described infrared transmission module
Module, described infrared transmission module accesses the live wire of power distribution cabinet supply line, and described infrared receiving module accesses power distribution cabinet and powers
The zero line of circuit；
Described power supply identifying system also includes a shading sleeve, and described shading sleeve is enclosed within power distribution cabinet supply line, described infrared
Penetrate module and be provided with least two infrared-emitting diodes, at least one described infrared-emitting diode is located in described shading sleeve,
At least one described infrared-emitting diode is located at outside described shading sleeve, and described infrared receiving module also is located at described shading sleeve
Interior, the infrared-emitting diode in described shading sleeve is towards described infrared receiving module；
Described power supply identifying system also includes a signal processing system, and the signal input part connection of described signal processing system is described
Infrared receiving module, a control signal output end of described signal processing system connects described relay or IGCT.
2. power distribution cabinet circuit micro-current according to claim 1 inquiry energy consumption fall damage system it is characterised in that: described infrared
The occurrence frequency of transmitter module is less than 5 hertz.
3. power distribution cabinet circuit micro-current according to claim 1 inquiry energy consumption fall damage system it is characterised in that: power distribution cabinet line
Road micro-current inquiry energy consumption fall damage system also includes a key switch, and described key switch connects described signal processing system.
4. according to claim 1,2 or 3 power distribution cabinet circuit micro-current inquiry energy consumption fall damage system it is characterised in that: join
Electric cabinet circuit micro-current inquiry energy consumption fall damage system, also includes a load current regulating system, described load current regulating system
Including a control module, described control module is provided with a control signal output end, and described control module is exported by control signal
End connects a voltage-adjusting unit, and the signal output part of described voltage-adjusting unit connects current control signal transacting mould
Block；
Described supply line is provided with a constant current output circuit, and described current control receives described Voltage Cortrol with signal processing module
The Regulate signal of unit, and Regulate signal is analyzed process after, export to constant current output circuit, realize described constant current output
The regulation of circuit output current.
5. power distribution cabinet circuit micro-current according to claim 4 inquiry energy consumption fall damage system it is characterised in that: described signal
Processing system is passed through described infrared transmission module and is communicated to connect a host computer.
6. power distribution cabinet circuit micro-current according to claim 5 inquiry energy consumption fall damage system it is characterised in that: described control
Module is additionally provided with a control signal input, and described control signal input connects described signal processing system；
The control signal being provided with an output valve containing constant current output circuit in described host computer with voltage-adjusting unit matches
Electric current regulation static database, described host computer judges the output valve of constant current output circuit needing to adjust, searches phase
Described control signal is passed to described control module by described signal processing system by the control signal joined, then by described control
Molding block exports to described voltage-adjusting unit, realizes the regulation to constant current output circuit output current.
7. power distribution cabinet circuit micro-current according to claim 6 inquiry energy consumption fall damage system it is characterised in that: described upper
It is additionally provided with a dynamic data base in machine, described host computer input signal to external world is recorded, and is stored in dynamic data base, move
State database is extended in use, constitutes a dynamic data base with Self-learning Model；Described host computer is sentenced
The output valve of the disconnected constant current output circuit needing to adjust, according to the constant current output circuit constantly learning in dynamic data base to obtain
The value output control signal that the control signal of output valve and voltage-adjusting unit matches, by described signal processing system by institute
State control signal and pass to described control module, then exported to described voltage-adjusting unit by described control module, realize to perseverance
The regulation of stream output circuit output current.
8. power distribution cabinet circuit micro-current according to claim 4 inquiry energy consumption fall damage system it is characterised in that: described voltage
Adjustment unit receives the control signal of described control module output, adjusts between peak end and the signal output part of Regulate signal
And the equivalent resistance between the minimum end of signal output part and Regulate signal, realize output to described current control letter
The control of the Regulate signal of number processing module.
9. power distribution cabinet circuit micro-current according to claim 8 inquiry energy consumption fall damage system it is characterised in that: also include one
Reference voltage module, the output voltage maximum end of described reference voltage module, output voltage minimum of a value end connect described respectively
The peak end of the Regulate signal of voltage-adjusting unit, the minimum end of Regulate signal, to control described voltage regulator module
Output signal set in the range of.
10. power distribution cabinet circuit micro-current according to claim 9 inquiry energy consumption fall damage system it is characterised in that: described electricity
It is also connected with one between the peak end of Regulate signal of pressure adjustment unit and the output voltage maximum of described reference voltage module
Divider resistance, the minimum end of the Regulate signal of described voltage-adjusting unit is minimum with the output voltage of described reference voltage module
Another divider resistance, the peak of the Regulate signal of two described divider resistances and described voltage-adjusting unit is connected between value end
End, the minimum end of Regulate signal, signal output part constitute a bleeder circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201410714383.9A CN104409978B (en) | 2014-12-01 | 2014-12-01 | Circuit microcurrent query energy consumption reduction system of power distribution cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410714383.9A CN104409978B (en) | 2014-12-01 | 2014-12-01 | Circuit microcurrent query energy consumption reduction system of power distribution cabinet |
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| Publication Number | Publication Date |
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| CN104409978A CN104409978A (en) | 2015-03-11 |
| CN104409978B true CN104409978B (en) | 2017-01-18 |
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| CN1187722A (en) * | 1996-12-26 | 1998-07-15 | 冲电气工业株式会社 | Method for power saving in optical communication apparatus, optical communication apparatus and method for using thereof, and optical communication system |
| US8200370B2 (en) * | 2008-12-04 | 2012-06-12 | American Power Conversion Corporation | Energy reduction |
| CN101867208B (en) * | 2010-06-07 | 2014-01-08 | 杭州市电力局 | Charging post |
| CN202167841U (en) * | 2011-01-20 | 2012-03-14 | 单立辉 | High precision intelligent grounding line selection device based on electric energy metering chip technology |
| CN202043036U (en) * | 2011-05-06 | 2011-11-16 | 宋建明 | Novel micro-power high-voltage power supply |
| CN202363978U (en) * | 2011-12-08 | 2012-08-01 | 北京四方华能电气设备有限公司 | Intelligent control terminal of self-powered low-power-consumption high-pressure vacuum circuit breaker |
| CN202957659U (en) * | 2011-12-28 | 2013-05-29 | 山东电力研究院 | Line loss actual measurement and positioning system based on high voltage electric energy meter |
| CN203522266U (en) * | 2013-10-18 | 2014-04-02 | 常州市巨泰电子有限公司 | Intelligent charging power supply |
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