CN206270399U - A kind of voltage circuit test circuit - Google Patents
A kind of voltage circuit test circuit Download PDFInfo
- Publication number
- CN206270399U CN206270399U CN201621405180.2U CN201621405180U CN206270399U CN 206270399 U CN206270399 U CN 206270399U CN 201621405180 U CN201621405180 U CN 201621405180U CN 206270399 U CN206270399 U CN 206270399U
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- voltage circuit
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- 238000012360 testing method Methods 0.000 title claims abstract description 19
- 238000005259 measurement Methods 0.000 claims abstract description 26
- 230000008878 coupling Effects 0.000 claims abstract description 10
- 238000010168 coupling process Methods 0.000 claims abstract description 10
- 238000005859 coupling reaction Methods 0.000 claims abstract description 10
- 238000001514 detection method Methods 0.000 claims description 10
- 240000007643 Phytolacca americana Species 0.000 claims description 6
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims description 3
- 238000001727 in vivo Methods 0.000 claims 1
- 208000035126 Facies Diseases 0.000 abstract 1
- 230000005611 electricity Effects 0.000 description 9
- 230000006872 improvement Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000003756 stirring Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 208000037408 Device failure Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Abstract
The utility model discloses a kind of voltage circuit test circuit, including casing and power circuit, the power circuit is arranged in casing, and the power circuit includes:Voltage circuit lead-out terminal, for the voltage circuit coupling with extraneous secondary device;Input adjustment unit, for being coupled with external power source, control unit is coupled to input adjustment unit;Control relay K1, voltmeter, one end of the voltmeter is coupled to voltage circuit lead-out terminal, and the other end is coupled with voltage measurement switching switch.Voltage circuit test circuit of the present utility model, when can avoid just turning on by the setting for being input into adjustment unit, the problem of voltmeter excessive pressure damages, and the setting for passing through control relay K1 and control unit can realize intelligent measuring voltage, and switch the voltage measurement that different facies units can be realized by switching that sets of switch by voltage measurement, thus compared to the mode of universal meter, detect more convenient.
Description
Technical field
The utility model is related to a kind of test circuit, more particularly to a kind of voltage circuit test circuit.
Background technology
During the operation and maintenance of electric power network, it is often necessary to the voltage and current of the middle circuit of electric power network
Detected, thus be all come to the voltage and electricity in electric power network using some secondary devices when existing operation of power networks
Stream is detected, safeguarded and failture evacuation with to power network.
But during prolonged operation of power networks, the problem with regard to some secondary device failures occur so that two
Secondary device cannot be well to electric power network voltage x current have detected, thus be accomplished by carrying out the failure of secondary device
Exclude, be first to need to detect the voltage and current inside secondary device, in the prior art using right during exclusion
The instrument that voltage inside secondary device is detected is universal meter, and utilize universal meter detection if just it is comparatively laborious, it is necessary to
Constantly transfer the files rewiring to be detected, the detection efficiency of secondary device voltage greatly reduces.
Utility model content
In view of the shortcomings of the prior art, the purpose of this utility model is to provide a kind of electricity of voltage detecting efficiency high
Pressure loop-around test circuit.
To achieve the above object, the utility model provides following technical scheme:A kind of voltage circuit test circuit, including
Casing and power circuit, the power circuit are arranged in casing, and the power circuit includes:
Voltage circuit lead-out terminal, for the voltage circuit coupling with external secondary equipment;
Input adjustment unit, for being coupled with external power source, the both end voltage for being used to adjust power circuit is poor;
Control unit, is coupled to input adjustment unit, for being interacted with people, output control signal;
Control relay K1, control relay K1 include control coil and multiple switch, the control relay K1's
Control coil is coupled with control unit, the control signal of reception control unit output, is acted according to control signal generation, described many
One end of individual switch is coupled to input adjustment unit, and the other end is coupled to voltage time after being respectively coupled to fuse FU1~FU4
Road lead-out terminal;
Measuring unit, the measuring unit includes voltmeter, and one end of the voltmeter is coupled to voltage circuit lead-out terminal,
The other end is coupled with voltage measurement switching switch, and the voltage measurement switching switch has an input and multiple output ends,
The input and voltmeter are coupled relative to other end be connected with input adjustment unit, multiple output ends respectively with fuse
FU1~FU4 is connected one to one, and a poke rod is provided between the input and output end, after poke rod is stirred, will be input into
End is connected with one of output end.
Used as further improvement of the utility model, the casing is provided with case lid, the voltage circuit lead-out terminal and
Voltmeter is arranged on case lid, and the voltage circuit lead-out terminal is arranged on case lid and is close on its upper left position, described
Fuse FU1~FU4 is embedded on case lid on the lower position relative to voltage circuit lead-out terminal, and the voltmeter is arranged on
On lower position on case lid relative to fuse FU1~FU4, voltage measurement switching switch be arranged on case lid relative to
On the lower position of voltmeter, it is arranged in a linear with voltage circuit lead-out terminal, fuse FU1~FU4, voltmeter.
Used as further improvement of the utility model, the input adjustment unit includes:
Attaching plug XS, attaching plug XS are coupled with external power source;
Variometer TY, variometer TY has first end, the second end and adjustable side, and the first end is coupled with
Coupled with attaching plug XS after power switch S1 is coupled with after fuse FU0, second end is coupled to coupling after power switch S1
It is connected to attaching plug XS;
The primary side of transformer T1, transformer T1 is coupled with after relay KT the regulation for being coupled to variometer TY
End, secondary side is coupled with the multiple switch of control relay K1, and control coil and the control unit of the relay KT are coupled;
Wherein, attaching plug XS, power switch S1 and fuse FU0 phases left and right side by side be arranged on case lid relative to voltage
On the lower position of measurement switching switch, the variable inductance TY is arranged on the position of case lid lower right.It is new as this practicality
The further improvement of type, described control unit includes:
AC/DC units, are coupled to the other ends of the fuse FU0 relative to power switch S1, will be passed through overcurrent fuse FU0
The defeated alternating current for coming is exported after being converted into direct current;
MCU microcontrollers, are coupled to AC/DC units, receive the direct current of AC/DC units output, have been also coupled to outputting cutting
Unit is changed, voltage circuit detection pattern and amperometric detection mode are preset with it, the output switching unit is used for input signal
To in MCU microcontrollers so that MCU microcontroller output drive signals;Relay drive unit, is coupled to relay KT and control
The control coil of relay K1 processed, is further coupled to MCU microcontrollers, the drive signal for receiving the output of MCU microcontrollers, and
Output current is driven according to drive signal, relay KT and control relay K1 actions are driven.
Used as further improvement of the utility model, the output switching unit includes output button and excision button, defeated
Go out button for output voltage output signal, excision button is used for outputting cutting and removes signal, and the output button and excision button are equal
With the coupling of MCU microcontrollers, when output button output voltage output signal is pressed, MCU controllers receive the signal, and send
Drive signal closes to relay drive unit control relay KT and relay K1, and turn-on power plug XS is defeated with voltage circuit
Go out terminal, when excision button is pressed, MCU controllers receive the signal, and send drive signal to relay drive unit control
Relay KT processed and relay K1 openings, deenergization plug XS and voltage circuit lead-out terminal, wherein, export button and excision
Button or so left side for being arranged on variometer TY side by side.
The beneficial effects of the utility model, by the setting of casing, can be effectively protected power circuit, it is ensured that in measurement
During, power circuit can be good at being operated, and pass through the setting of voltage circuit lead-out terminal, it is possible to effective
Voltage circuit with external secondary equipment is coupled, and facilitates wiring, and passing through control relay K1 and control unit can realize
One effect of intelligent measuring, when needing to measure and need not measure, it is only necessary to operation control unit, compares
In universal meter by the unconnected mode of universal meter, next measurement is greatly facilitated, and pass through the setting of voltmeter, Ke Yiyou
The measurement of the completion voltage circuit of effect, and switch the setting of switch by voltage measurement, it is possible to for multiphase in secondary device
Each phase voltage loop measures in circuit, it is not necessary to rewiring, compared to the mode of universal meter, more fast.
Brief description of the drawings
Fig. 1 is the structure chart of the case lid of voltage circuit test circuit of the present utility model;
Fig. 2 is the circuit diagram of the power circuit of voltage circuit test circuit of the present utility model.
Specific embodiment
The utility model is described in further detail below in conjunction with the embodiment given by accompanying drawing.
Referring to figs. 1 to shown in 2, a kind of voltage circuit test circuit of the present embodiment, including casing and power circuit, it is described
Power circuit is arranged in casing, and the power circuit includes:
Voltage circuit lead-out terminal 2, for the voltage circuit coupling with external secondary equipment;
Input adjustment unit 4, for being coupled with external power source, the both end voltage for being used to adjust power circuit is poor;
Control unit 3, is coupled to input adjustment unit 4, for being interacted with people, output control signal;
Control relay K1, control relay K1 include control coil and multiple switch, the control relay K1's
Control coil is coupled with control unit 3, the control signal of the output of reception control unit 3, is acted according to control signal generation, described
One end of multiple switch is coupled to input adjustment unit 4, and the other end is coupled to electricity after being respectively coupled to fuse FU1~FU4
Push back road lead-out terminal 2;
Measuring unit 1, the measuring unit 1 includes voltmeter 11, and it is defeated that one end of the voltmeter 11 is coupled to voltage circuit
Go out terminal 2, the other end is coupled with voltage measurement switching switch 12, the voltage measurement switching switch 12 have an input and
Multiple output ends, the input is with voltmeter 11 relative to the other end coupling being connected with input adjustment unit 4, multiple output
End is connected one to one with fuse FU1~FU4 respectively, and a poke rod is provided between the input and output end, when stirring
After bar is stirred, input is connected with one of output end, during voltage is measured, first by voltage circuit output end
Son 2 is connected one to one with the voltage circuit of each phase of external secondary equipment, and input adjustment unit 4 then is adjusted into voltage
Difference is accommodated on maximum position, then operation control unit 3, the drive control relay K1 of control unit 3 closures, by voltmeter
11st, input regulating loop 4 and voltage circuit lead-out terminal 2 are turned on, and now voltmeter 11 just can effectively measure voltage circuit
, when the phase for needing the voltage circuit to detecting is changed, it is only necessary to stir poke rod, conducting will be changed
Input and output end, the voltage circuit of output end one phase of correspondence after will stirring are connected in circuit, and such voltmeter is just
The voltage in the phase voltage loop is detected, the comprehensive inspection to outside secondary device voltage circuit thus can be effectively completed
Survey, its process simple and fast, it is in hgher efficiency compared in the prior art by the way of universal meter.
Used as a kind of improved specific embodiment, the casing is provided with case lid 5, the voltage circuit lead-out terminal 2
It is arranged on case lid 5 with voltmeter 11, the voltage circuit lead-out terminal 2 is arranged on case lid 5 near its upper left position
On, the fuse FU1~FU4 is embedded on the lower position on case lid 5 relative to voltage circuit lead-out terminal 2, the electricity
Pressure table 11 is arranged on case lid 5 on the lower position relative to fuse FU1~FU4, and the voltage measurement switching switch 12 sets
Put on the lower position on case lid 5 relative to voltmeter 11, with voltage circuit lead-out terminal 2, fuse FU1~FU4, voltage
Table 11 is arranged in a linear, due to voltage circuit lead-out terminal 2, voltmeter 11, fuse FU1~FU4, voltage measurement switching switch
12 is all the relation being connected with each other, thus they are arranged in a linear can facilitate the connection of wire, it is to avoid connecting wire is repeatedly
Excessively complicated problem caused by intersecting, and voltage circuit lead-out terminal 2 is arranged on the position that case lid keeps to the side, can be conveniently
The wiring of people, and fuse FU1~FU4 is facilitated into the displacement of later stage fuse by the way of insertion.
Used as a kind of improved specific embodiment, the input adjustment unit 4 includes:
Attaching plug XS, attaching plug XS are coupled with external power source;
Variometer TY, variometer TY has first end, the second end and adjustable side, and the first end is coupled with
Coupled with attaching plug XS after power switch S1 is coupled with after fuse FU0, second end is coupled to coupling after power switch S1
It is connected to attaching plug XS;
The primary side of transformer T1, transformer T1 is coupled with after relay KT the regulation for being coupled to variometer TY
End, secondary side is coupled with the multiple switch of control relay K1, and control coil and the control unit 3 of the relay KT are coupled;
Wherein, attaching plug XS, power switch S1 and fuse FU0 phases left and right side by side be arranged on case lid 5 relative to electricity
On the lower position of pressure measurement switching switch 12, the variable inductance TY is arranged on the position of the lower right of case lid 5, by power supply
Plug XS can be good at being connected with external power source so that external power source is input into a burning voltage to comprehensive tester, afterwards
By the effect of variometer TY and transformer T1, a benchmark electricity is exported to voltage measurement circuit 1 and current measurement circuit 2
Press, due to extraneous power input is alternating current, thus using the setting of variometer TY, it is possible to effectively adjust defeated
Enter the voltage to transformer T1 primary sides, then the voltage of transformer T1 primary sides is changed, so the voltage of its secondary side
Also can be changed, thus so just can effectively realize changing the electricity at voltage measurement circuit 1 and the two ends of current measurement circuit 2
The effect of pressure difference, avoids the problem that the excessive caused voltmeter 11 of the voltage being input at the beginning burns, by power supply well
Plug XS and power switch S1 or so setting side by side, can conveniently connection between the two, and by attaching plug XS and power supply
Switch S1 is arranged on the lower position of voltage measurement switching switch 12, and then the connection between convenient and variometer TY
.
Used as a kind of improved specific embodiment, described control unit 3 includes:
AC/DC units 31, are coupled to the other ends of the fuse FU0 relative to power switch S1, will be through overcurrent fuse FU0
The alternating current for transmitting is exported after being converted into direct current;
MCU microcontrollers 32, are coupled to AC/DC units 31, receive the direct current of the output of AC/DC units 31, have been also coupled to
Output switching unit 321, is preset with voltage circuit detection pattern and amperometric detection mode, the output switching unit 321 in it
For in input signal to MCU microcontrollers 32, changing the detection pattern of the inside of MCU microcontrollers 32, while MCU microcontrollers
The output drive signal of device 32;
Relay drive unit 33, is coupled to the control coil of relay KT and control relay K1, is further coupled to MCU micro-
Controller 32, the drive signal for receiving the output of MCU microcontrollers 32, and output current is driven according to drive signal, drive
Relay KT and control relay K1 is acted, by the setting of AC/DC circuits 31, it is possible to the alternating current for being input into external power source
It is converted into direct current and supplies electricity to MCU for controller 32 is powered, and pass through the setting of output switching circuit 321, people can just gives MCU
The input operation signal of microcontroller 32, using the output signal of MCU microcontrollers 32 come the test of control voltage loop-around test circuit
, thus the output switching circuit 321 of the present embodiment can be switch, button etc., and pass through setting for relay drive circuit 33
Put, just the signal that MCU microcontrollers 32 are exported can be converted into electric current carrys out control relay, so just can be effectively real
The control action of control circuit 3 is showed.
Used as a kind of improved specific embodiment, the output switching unit 321 includes output button 3212 and excision
Button 3213, output button 3212 is used for output voltage output signal, and excision button 3213 is used for outputting cutting and removes signal, described defeated
Go out button 3212 and excision button 3213 is coupled with MCU microcontrollers 32, exported when output button 3212 output voltage is pressed
During signal, MCU controllers 32 receive the signal, and send drive signal to the control relay KT of relay drive unit 33 and after
Electrical equipment K1 closes, turn-on power plug XS and voltage circuit lead-out terminal 2, when excision button 3213 is pressed, MCU controllers 32
The signal is received, and sends drive signal and opened to the control relay KT of relay drive unit 33 and relay K1, disconnect electricity
Source plug XS and voltage circuit lead-out terminal 2, wherein, output button 3212 and excision button 3213 or so being arranged on side by side can
The left side of varindor TY, output button 3212 and excision button 3213 are arranged to by output switching unit 321, are pressed by output
The setting of button 3212, can detect power circuit whether can normal work, and pass through to cut off the setting of button 3213, Ke Yi
When external voltage loop is inconvenient to measure, power circuit and external voltage loop are disconnected, afterwards be convenient for measuring when
Time can be turned on both by exporting button 3212, realize the measurement of electric current.
In sum, the voltage circuit measuring circuit of the present embodiment, by voltage circuit lead-out terminal 2 can effectively with
The voltage circuit connection of external secondary equipment, by being input into the setting of adjustment unit 4, voltage is excessive when can avoid conducting causes
Voltmeter 11 damage problem, and by voltage measurement switch switch 12 setting, it is possible to realize to ployphase voltages loop
The effect for being measured respectively, realizes complete detection, and compared to the mode of existing universal meter, test process is more intelligent, more
Plus it is convenient and swift.
The above is only preferred embodiment of the present utility model, and protection domain of the present utility model is not limited merely to
Above-described embodiment, all technical schemes belonged under the utility model thinking belong to protection domain of the present utility model.Should refer to
Go out, for those skilled in the art, some improvement under the premise of the utility model principle is not departed from and
Retouching, these improvements and modifications also should be regarded as protection domain of the present utility model.
Claims (5)
1. a kind of voltage circuit test circuit, it is characterised in that:Including casing and power circuit, the power circuit is arranged on case
In vivo, the power circuit includes:
Voltage circuit lead-out terminal (2), for the voltage circuit coupling with external secondary equipment;
Input adjustment unit (4), for being coupled with external power source, the both end voltage for being used to adjust power circuit is poor;
Control unit (3), is coupled to input adjustment unit (4), for being interacted with people, output control signal;
Control relay K1, control relay K1 include control coil and multiple switch, the control of the control relay K1
Coil is coupled with control unit (3), the control signal of reception control unit (3) output, is acted according to control signal generation, described
One end of multiple switch is coupled to input adjustment unit (4), and the other end is coupled to after being respectively coupled to fuse FU1~FU4
Voltage circuit lead-out terminal (2);
Measuring unit (1), the measuring unit (1) includes voltmeter (11), and one end of the voltmeter (11) is coupled to voltage and returns
Road lead-out terminal (2), the other end is coupled with voltage measurement switching switch (12), and voltage measurement switching switch (12) is with one
Individual input and multiple output ends, the input is with voltmeter (11) relative to another with what input adjustment unit (4) was connected
End coupling, multiple output ends connect one to one with fuse FU1~FU4, are provided between the input and output end respectively
One poke rod, after poke rod is stirred, input is connected with one of output end.
2. voltage circuit test circuit according to claim 1, it is characterised in that:The casing is provided with case lid (5), institute
State voltage circuit lead-out terminal (2) and voltmeter (11) is arranged on case lid (5), the voltage circuit lead-out terminal (2) sets
Put in case lid (5) on its upper left position, the fuse FU1~FU4 is embedded on case lid (5) and is returned relative to voltage
On the lower position of road lead-out terminal (2), the voltmeter (11) is arranged on case lid (5) relative to fuse FU1~FU4's
On lower position, voltage measurement switching switch (12) is arranged on the lower position on case lid (5) relative to voltmeter (11)
On, it is arranged in a linear with voltage circuit lead-out terminal (2), fuse FU1~FU4, voltmeter (11).
3. voltage circuit test circuit according to claim 2, it is characterised in that:Input adjustment unit (4) includes:
Attaching plug XS, attaching plug XS are coupled with external power source;
Variometer TY, variometer TY has first end, the second end and adjustable side, and the first end is coupled with fusing
Coupled with attaching plug XS after power switch S1 is coupled with after device FU0, second end is coupled to after being coupled to power switch S1
Attaching plug XS;
The primary side of transformer T1, transformer T1 is coupled with after relay KT the adjustable side for being coupled to variometer TY, two
Secondary side is coupled with the multiple switch of control relay K1, and control coil and the control unit (3) of the relay KT are coupled;
Wherein, attaching plug XS, power switch S1 and fuse FU0 phases left and right side by side be arranged on case lid (5) relative to voltage
On the lower position of measurement switching switch (12), the variable inductance TY is arranged on the position of case lid (5) lower right.
4. voltage circuit test circuit according to claim 3, it is characterised in that:Described control unit (3) includes:
AC/DC units (31), are coupled to the other ends of the fuse FU0 relative to power switch S1, will be passed through overcurrent fuse FU0
The defeated alternating current for coming is exported after being converted into direct current;
MCU microcontrollers (32), are coupled to AC/DC units (31), receive the direct current of AC/DC units (31) outputs, are also coupled to
There is output switching unit (321), voltage circuit detection pattern and amperometric detection mode, the output switching unit are preset with it
(321) in input signal to MCU microcontrollers (32) so that MCU microcontrollers (32) output drive signal;
Relay drive unit (33), is coupled to the control coil of relay KT and control relay K1, is further coupled to MCU micro-controls
Device (32) processed, the drive signal for receiving MCU microcontrollers (32) output, and output current is driven according to drive signal, drive
Motor type relay KT and control relay K1 is acted.
5. voltage circuit test circuit according to claim 4, it is characterised in that:Output switching unit (321) bag
Output button (3212) and excision button (3213) are included, output button (3212) cuts off button for output voltage output signal
(3213) for outputting cutting remove signal, the output button (3212) and cut off button (3213) with MCU microcontrollers (32)
Coupling, when output button (3212) output voltage output signal is pressed, MCU controllers (32) receive the signal, and send drive
Dynamic signal closes to relay drive unit (33) control relay KT and relay K1, turn-on power plug XS and voltage circuit
Lead-out terminal (2), when excision button (3213) are pressed, MCU controllers (32) receive the signal, and send drive signal to after
Electrical equipment drive unit (33) control relay KT and relay K1 openings, deenergization plug XS and voltage circuit lead-out terminal
(2), wherein, output button (3212) and excision button (3213) or so the left side for being arranged on variometer TY side by side.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201621405180.2U CN206270399U (en) | 2016-12-20 | 2016-12-20 | A kind of voltage circuit test circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201621405180.2U CN206270399U (en) | 2016-12-20 | 2016-12-20 | A kind of voltage circuit test circuit |
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Publication Number | Publication Date |
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CN206270399U true CN206270399U (en) | 2017-06-20 |
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CN201621405180.2U Expired - Fee Related CN206270399U (en) | 2016-12-20 | 2016-12-20 | A kind of voltage circuit test circuit |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107482768A (en) * | 2017-07-13 | 2017-12-15 | 中国电力科学研究院 | It is a kind of based on modular power information collection and load management in one terminal device |
CN111323664A (en) * | 2020-03-18 | 2020-06-23 | 宁波职业技术学院 | High tension switchgear test module |
-
2016
- 2016-12-20 CN CN201621405180.2U patent/CN206270399U/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107482768A (en) * | 2017-07-13 | 2017-12-15 | 中国电力科学研究院 | It is a kind of based on modular power information collection and load management in one terminal device |
CN111323664A (en) * | 2020-03-18 | 2020-06-23 | 宁波职业技术学院 | High tension switchgear test module |
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Granted publication date: 20170620 Termination date: 20181220 |