CN104361802B - A kind of capacitive apparatus electrical operation analogue means - Google Patents
A kind of capacitive apparatus electrical operation analogue means Download PDFInfo
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- CN104361802B CN104361802B CN201410720995.9A CN201410720995A CN104361802B CN 104361802 B CN104361802 B CN 104361802B CN 201410720995 A CN201410720995 A CN 201410720995A CN 104361802 B CN104361802 B CN 104361802B
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- 230000010363 phase shift Effects 0.000 claims description 12
- 230000005611 electricity Effects 0.000 claims description 10
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- 238000011000 absolute method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
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- 239000003990 capacitor Substances 0.000 description 3
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- 238000002955 isolation Methods 0.000 description 2
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- 230000008569 process Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
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- 238000006243 chemical reaction Methods 0.000 description 1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/18—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism
- G09B23/188—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism for motors; for generators; for power supplies; for power distribution
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B9/00—Simulators for teaching or training purposes
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Abstract
The embodiment of the present invention provides a kind of capacitive apparatus electrical operation analogue means, including：Power end, three-phase signal generator, power amplifier, transformer, capacitive load, current output terminal and voltage output end, wherein, the power end is connected with three-phase signal generator and power amplifier respectively, the three-phase signal generator includes three signal output parts, each signal output part is connected by power amplifier, transformer and capacitive load with a current output terminal, and each transformer is connected with a voltage output end.
Description
Technical field
The present invention relates to charged electric power apparatus to detect skills training teaching field, electric more particularly to a kind of capacitive apparatus
Run analogue means.
Background technology
As technological progress and power network are fast-developing, the existing interruption maintenance pattern based on the cycle can not meet current electricity
Net demand for development, and charged electric power apparatus detection technique can realize it is defeated, become, controller switching equipment condition diagnosing in operating conditions,
Being accurately positioned of rejected region, the quantitative analysis of defect level, can effective solution portion to avoiding equipment breakdown from having important value
There is no the problem of means of testing and no counter-measure that goes wrong after subset operation, the reliability for being advantageous to improve equipment refers to
Mark, be advantageous to carry out equipment state evaluation and repair based on condition of component.
How accurate capacitive apparatus is thus due to occupying very big proportion (generally 40%~50%) in substation equipment
Can specification be completed to seem particularly significant to the work of its live detection, after because this is whether diagnosis is such apparatus insulated normal
The key of safe and stable operation is held in continuation of insurance.Wanted to make the line operating maintenance personnel of system one grasp the technology of capacitive apparatus live detection
Neck is, it is necessary to carry out the skills training of theory and practice operation to it, to improve personnel specialty technical ability.Capacitive apparatus live detection
Operative skill training, to reach preferable result of training, it need to can take following two modes by certain object in kind：
First, live detection operative skill training is carried out to capacitive apparatus in operation in transformer station；2nd, using additional experiment power supply
Device, capacitive apparatus are in kind to set up set of system to simulate the actual electric network operational mode of capacitive apparatus.
Mode one needs to carry out in transformer station, and student, which needs to enter, carries out operative skill rehearsal, transformer station in transformer station
Belong to power network production line, student, which enters, carries out operative skill rehearsal in transformer station, exist very to circuit, equipment and personal safety
Big hidden danger, it is both dangerous or unactual；Mode two has particular/special requirement to test site, need to carry out in specific test site, and
When actual training is carried out, in order to reappear electric operating mode of the capacitive apparatus under grid operating conditions, it is necessary to by additional
Power supply applies high voltage in capacitive apparatus material object, and the student that undergoes training is more, and the larger person can be also brought to training and is set
Standby potential safety hazard.
The content of the invention
In view of this, the embodiment of the present invention provides a kind of capacitive apparatus electrical operation analogue means, to solve prior art
In in transformer station in operation capacitive apparatus carry out live detection operative skill training, or using additional experiment power supply fill
Put, capacitive apparatus is in kind comes to the person and equipment belt when setting up set of system to simulate the actual electric network operational mode of capacitive apparatus
Potential safety hazard the problem of.
To achieve the above object, the embodiment of the present invention provides following technical scheme：
A kind of capacitive apparatus electrical operation analogue means, including：Power end, three-phase signal generator, power amplifier, change
Depressor, capacitive load, current output terminal and voltage output end, wherein,
The power end is connected with three-phase signal generator and power amplifier respectively, and the three-phase signal generator includes
Three signal output parts, each signal output part are exported by power amplifier, transformer and capacitive load and an electric current
End is connected, and each transformer is connected with a voltage output end.
Wherein, the analogue means also includes：Casing,
For accommodate power end, three-phase signal generator, power amplifier, transformer, capacitive load, current output terminal and
Voltage output end.
Wherein, the power end, three-phase signal generator, power amplifier, transformer, capacitive load, current output terminal
It is located at the surface of the casing with voltage output end.
Wherein, the analogue means also includes：Panel,
The panel includes voltage and obtains region and electric current acquisition region, and the voltage, which obtains region, includes voltage terminal,
For obtaining voltage output terminal voltage signal, the electric current, which obtains region, includes current terminal, for obtaining current output terminal electricity
Flow signal.
Wherein, the voltage terminal includes first voltage terminal and second voltage terminal, each first voltage terminal and one
Individual voltage output end is connected, the electricity of the voltage output terminal voltage signal of acquisition between first voltage terminal and second voltage terminal
Press signal.
Wherein, the current terminal includes upper current terminal and lower current terminal, each upper current terminal and an electric current
Output end is connected, and current output terminal current signal is obtained by upper current terminal and its corresponding lower current terminal short circuit.
Wherein, the panel also includes：Power supply area, the power supply area includes exchange electrical input socket and voltage is opened
Close, after the voltage switch closure, alternating current is provided to power end by the exchange electrical input socket.
Wherein, the analogue means also includes：Earth terminal；
Wherein, the panel also includes：Ground terminal, it is connected with the earth terminal, for making earth terminal by ground wire
Ground connection.
Wherein, the three-phase signal generator includes：Signal generator and phase-shift circuit, wherein,
The signal generator, for producing signal；
The phase-shift circuit, it is the road signals of 120 Du tri- for described signal to be divided into phase difference, generation three is believed
Number.
Wherein, the analogue means also includes auxiliary switching power supply, and described auxiliary switching power supply one end is connected with power end,
The other end is connected with three-phase signal generator and power amplifier respectively.
Based on above-mentioned technical proposal, capacitive apparatus electrical operation analogue means provided in an embodiment of the present invention, including power supply
End, three-phase signal generator, power amplifier, transformer, capacitive load, current output terminal and voltage output end, wherein, power supply
End is connected with three-phase signal generator and power amplifier respectively, is powered to three-phase signal generator and power amplifier,
Three-phase signal generator has three signal output parts, and each signal output part exports three-phase signal all the way, each signal output
End be connected by power amplifier, transformer and capacitive load with a current output terminal, each transformer with an electricity
Pressure output end is connected, and produces the voltage signal and current signal required under capacitive apparatus absolute method live detection environment, carrys out mould
Intend the operation of power networks mode of operation of capacitive apparatus, be very suitable for the use of skills training class, student can be made to understand and slap well
Principle and operative skill of such electrical equipment based on absolute method live detection are held, while efficient, easy, there is higher peace
Quan Xing.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
The embodiment of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing of offer obtains other accompanying drawings.
Fig. 1 is the system block diagram of the analogue means of capacitive apparatus electrical operation provided in an embodiment of the present invention；
Fig. 2 is the structural representation of panel in capacitive apparatus electrical operation analogue means provided in an embodiment of the present invention；
Fig. 3 is the structure of three-phase signal generator in capacitive apparatus electrical operation analogue means provided in an embodiment of the present invention
Block diagram；
Fig. 4 is another system block diagram of capacitive apparatus electrical operation analogue means provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
Fig. 1 is the system block diagram of the analogue means of capacitive apparatus electrical operation provided in an embodiment of the present invention, passes through the mould
Intend device and produce voltage signal and current signal required under capacitive apparatus absolute method live detection environment, set to simulate capacitive
Standby operation of power networks mode of operation and its absolute method live detection process, the use of skills training class is very suitable for, can be well
Student is understood and grasp the principle and operative skill of such electrical equipment live detection, while efficient, easy, have higher
Security, reference picture 1, the capacitive apparatus electrical operation analogue means can include：Power end 100, three-phase signal generator
200th, power amplifier 300, transformer 400, capacitive load 500, current output terminal 600 and voltage output end 700, wherein,
Power end 100 is connected with three-phase signal generator 200 and power amplifier 300 respectively, is distinguished by power end 100
Be connected with three-phase signal generator 200 and power amplifier 300, allow from power end 100 input power supply signal respectively to
Three-phase signal generator 200 and power amplifier 300 are powered.
Optionally, power end 100 can be using input voltage as 220 volts of electric main.
Three-phase signal generator 200 includes three signal output parts, and each signal output part will export three-phase all the way
Signal, the signal that the signal output part of three-phase signal generator 200 can be claimed to export are respectively A phase signals, B phase signals and C phases
Signal, wherein, A phase signals, B phase signals and C phase signals have identical amplitude and frequency, and A phase signals, B phase signals and C phases
The phase difference of signal between any two is 120 degree.
Each signal output part of three-phase signal generator 200 passes through power amplifier 300, transformer 400 and capacitive
Load 500 is connected with a current output terminal 600.
Specifically, the A phase signals that three-phase signal generator 200 generates pass through power amplifier 300, transformer 400 and appearance
Property load 500 after exported from a current output terminal 600, B phase signals are born by power amplifier 300, transformer 400 and capacitive
Exported after carrying 500 from a current output terminal 600, and C phase signals pass through power amplifier 300, transformer 400 and capacitive load
Exported after 500 from a current output terminal 600, the current output terminal 600 that can export A phase signals is referred to as the output of the first electric current
End, the current output terminal 600 of output B phase signals be the second current output terminal, and the current output terminal 600 for exporting C phase signals is the
Three current output terminals.
Wherein, power amplifier 300 is used to give birth in three-phase signal generator 200 in capacitive apparatus electrical operation analogue means
Into three-phase signal carry out power amplification, low current signal source is enlarged into power current source, then by power be exaggerated three
Phase signals are exported, and improve the carrying load ability of output.
Optionally, power amplifier 300 can use DTA2030A integrated circuits, and DTA2030A integrated circuits are based on phone
The audio power amplifying circuit of machine production, using the pin single in-line plastic capsulation structure of V-type 5, is widely used in automobile and stands
In the equipment such as body sound radio-tape recorder, middle power sound equipment, have the characteristics that small volume, output power, distortion are small；Meanwhile
Also there is internal protection circuitry in DTA2030A integrated circuits, the safe to use of analogue means can be protected.
Wherein, transformer 400 is used to the voltage of the three-phase signal of reception being amplified, because the limitation of supply voltage,
The signal that transformer 400 receives only up to be ± 12 volts of alternating voltage, and be modeled the reality output of capacitive apparatus
Magnitude of voltage is significantly larger than ± 12 volts, if not carrying out transformation by transformer 400, is finally exported from voltage output end 700
Voltage only up to be ± 12 volts, do not reach the actual output voltage value for the voltage transformer being modeled much, therefore, be
The capacitive apparatus electrical operation analogue means is set to export an actual output voltage for reaching the voltage transformer being modeled
Value, transformer 400 is configured in capacitive apparatus electrical operation analogue means, by adjusting the no-load voltage ratio factor of transformer 400, to increase
The magnitude of voltage of big output signal, the reality output for the voltage transformer for enabling the output voltage values of transformer 400 and being modeled are electric
The signal that pressure value matches, even if capacitive apparatus electrical operation mould output matching voltage.
Transformer 400 also has the function of isolation, that is, passed through in addition to the voltage of the three-phase signal of reception is amplified
Transformer 400, the reality of capacitive apparatus of the impedance that capacitive apparatus electrical operation analogue means exports with being modeled can be made defeated
Go out matches impedances, and the three-phase signal of output and power end 100 is carried out electrical isolation.
Wherein, capacitive load 500 refers to the load with capacitance parameter, and each meets the negative of voltage delay current characteristics
Load can be described as capacitive load.
Optionally, capacitive load 500 can be that electric capacity and resistant series are formed.Optionally, connected in capacitive load 500
Electric capacity is bulky capacitor, and the resistance connected in capacitive load 500 is small resistor, wherein, bulky capacitor refers to that capacitance is more than one
The electric capacity of predetermined threshold, the value that this predetermined threshold neither one is fixed, in different capacitive apparatus electrical operation analogue means
In, this predetermined threshold all will be different, i.e., bulky capacitor is a relative concept, without big electricity truly
Hold；Likewise, small resistor refers to that resistance value is less than the resistance of predetermined threshold, this predetermined threshold also fix by neither one
Value, in different capacitive apparatus electrical operation analogue means, this predetermined threshold all will be different, i.e., small resistor is also
One relative concept, without small resistor truly.
The three-phase signal exported by capacitive load 500 will turn into capacitive three-phase signal, i.e., current output terminal 600 will
Capacitive three-phase current signal is exported, specifically, the first current output terminal will export capacitive A phase current signals, the second electric current is defeated
Capacitive B phase current signals will be exported by going out end, and the 3rd current output terminal will export capacitive C phase current signals.
Each transformer 400 is connected with a voltage output end 700.That is, the transformer 400 and one of A phase signals is received
Individual voltage output end 700 be connected, from the voltage output end 700 export A phase voltage signals, receive B phase signals transformer 400 with
One voltage output end 700 is connected, and exports B phase voltage signals from the voltage output end 700, receives the transformer 400 of C phase signals
It is connected with a voltage output end 700, C phase voltage signals is exported from the voltage output end 700.It can claim to export A phase voltages letter
Number voltage output end 700 be first voltage output end, output B phase voltage signals voltage output end 700 for second voltage it is defeated
Go out end, the voltage output end 700 of output C phase voltage signals is tertiary voltage output end, i.e. export A from first voltage output end
Phase voltage signal, B phase voltage signals are exported from second voltage output end, and C phase voltage signals are exported from tertiary voltage output end.
Optionally, capacitive apparatus electrical operation analogue means provided in an embodiment of the present invention can be used for simulating capacitive apparatus
Actual operating mode, calculate the absolute medium consumption factor and capacitance per compatibility equipment.
Based on above-mentioned technical proposal, the system frame of the analogue means of capacitive apparatus electrical operation provided in an embodiment of the present invention
Figure, including power end, three-phase signal generator, power amplifier, transformer, capacitive load, current output terminal and voltage output
End, wherein, power end is connected with three-phase signal generator and power amplifier respectively, to three-phase signal generator and power amplification
Device is powered, and three-phase signal generator has three signal output parts, and each signal output part exports three-phase signal all the way, often
Individual signal output part is connected by power amplifier, transformer and capacitive load with a current output terminal, each transformer
It is connected with a voltage output end, produces voltage signal and electric current required under capacitive apparatus absolute method live detection environment
Signal, to simulate the operation of power networks mode of operation of capacitive apparatus, the use of skills training class is very suitable for, student can be made well
Understand and grasp the principle and operative skill of such electrical equipment live detection, while efficient, easy, there is higher safety
Property.
Optionally, capacitive apparatus electrical operation analogue means provided in an embodiment of the present invention, can also include：Casing,
Casing is used to accommodate power end 100, three-phase signal generator 200, power amplifier 300, transformer 400, capacitive
Load 500, current output terminal 600 and voltage output end 700.
By power end 100, three-phase signal generator 200, power amplifier 300, transformer 400, capacitive load 500, electricity
Stream output end 600 and voltage output end 700 are contained in casing, make power end 100, three-phase signal generator 200, power amplification
Device 300, transformer 400, capacitive load 500, current output terminal 600 and voltage output end 700 are fixed in a casing, are easy to
Centralized operation, and space is saved, it is easy to store；
Simultaneously as capacitive apparatus electrical operation analogue means provided in an embodiment of the present invention, electric for capacitive apparatus
The teaching of operation, due to teaching place at any time may conversion, therefore the capacitive apparatus electrical operation analogue means need by with
When carry, by power end 100, three-phase signal generator 200, power amplifier 300, transformer 400, capacitive load 500, electric current
Output end 600 and voltage output end 700 are placed in same casing, in this way, transport can be easily facilitated.
Optionally, can be by power end 100, three-phase signal generator 200, power amplifier 300, transformer 400, capacitive
Load 500, current output terminal 600 and voltage output end 700 are placed in the inside that same casing is placed in casing, because casing has
Shell, shell have protection and barrier effect, therefore, so can well must be to power end 100, three-phase signal generator
200th, power amplifier 300, transformer 400, capacitive load 500, current output terminal 600 and voltage output end 700 are protected；
And make power end 100 in the casing, three-phase signal generator 200, power amplifier 300, transformer 400, capacitive load
500th, current output terminal 600 and voltage output end 700 are not allowed easy to be lost, protect the complete of capacitive apparatus electrical operation analogue means
Whole property.
Optionally, born when by power end 100, three-phase signal generator 200, power amplifier 300, transformer 400, capacitive
When load 500, current output terminal 600 and voltage output end 700 are placed in the inside for casing, a case can be set on casing
Lid, when the case lid closure of casing, power end 100, three-phase signal generator 200, power amplifier 300, transformer 400, appearance
Property load 500, current output terminal 600 and voltage output end 700 blocked by the case lid of casing, protected by case lid；When the case of casing
When lid is opened, power end 100, three-phase signal generator 200, power amplifier 300, transformer 400, capacitive load 500, electric current
Output end 600 and voltage output end 700 expose from casing, and power end 100, three-phase signal generator 200, power can be put
The operation that big device 300, transformer 400, capacitive load 500, current output terminal 600 and voltage output end 700 are needed.
Optionally, can be by the case lid of casing when being imparted knowledge to students without using capacitive apparatus electrical operation analogue means
Closure, avoids power end 100 in casing, three-phase signal generator 200, power amplifier 300, transformer 400, capacitive load
500th, current output terminal 600 and voltage output end 700 decline into dust, and influence the work of capacitive apparatus electrical operation analogue means
Make performance；
Optionally, when being carried to capacitive apparatus electrical operation analogue means, the case lid of casing can also be closed,
To avoid loss or the damage of some or some equipment in casing, make capacitive apparatus electrical operation analogue means intact
Property.
Optionally, can be by power end 100, three-phase signal generator 200, power amplifier 300, transformer 400, capacitive
Load 500, current output terminal 600 and voltage output end 700 are placed in the surface of casing, by power end 100, three-phase signal generator
200th, power amplifier 300, transformer 400, capacitive load 500, current output terminal 600 and voltage output end 700 are placed in casing
Surface, capacitive apparatus electrical operation analogue means can be allow to be used for carrying out the mould of capacitive apparatus electrical operation at any time
Intend.
Optionally, capacitive apparatus electrical operation analogue means provided in an embodiment of the present invention can also include：Panel 800,
The simulation of capacitive apparatus electrical operation characteristic is realized by the operation of equipment on counter plate 800, make simulation process it is simpler,
It is convenient.
Optionally, Fig. 2 shows panel 800 in capacitive apparatus electrical operation analogue means provided in an embodiment of the present invention
Structural representation, reference picture 2, the panel 800 can include：Voltage obtains region 810 and electric current obtains region 820, wherein,
Voltage, which obtains region 810, includes voltage terminal, and for obtaining the voltage signal of voltage output end 700, electric current obtains area
Domain 820 includes current terminal, for obtaining the current signal of current output terminal 600.
Optionally, voltage terminal includes first voltage terminal 811 and second voltage terminal 812, each first voltage terminal
811 are connected with a voltage output end 700, and the voltage signal of voltage output end 700 of acquisition is the first terminal 811 and Second terminal
Voltage signal between 812.
Optionally, voltage, which obtains region 810, can include 4 voltage terminals, wherein, 4 voltage terminals include 3 the
One voltage terminal 811 and 1 second voltage terminal 812, each first voltage terminal 811 respectively with a voltage output end 700
It is connected, and second voltage terminal 812 is then equivalent to zero line, by measuring second voltage terminal 812 and each first voltage respectively
Electrical potential difference between terminal 811 obtains the voltage signal that each voltage output end 700 exports.
Voltage can be obtained to 4 voltage terminals in region 810 and be respectively designated as A voltage terminals, B voltage terminals, C voltage
Terminal and D voltage terminals, wherein it is possible to A voltage terminals, B voltage terminals and C voltage terminal are set to the first current terminal 811,
D voltage terminals are set to second voltage terminal 812.Is obtained by measuring the electrical potential difference between D voltage terminals and A voltage terminals
One voltage output terminal voltage signal, i.e. A phase voltage signals；By measure the electrical potential difference between D voltage terminals and B voltage terminals come
To second voltage output end voltage signal, i.e. B phase voltage signals；By measuring the electrical potential difference between D voltage terminals and C voltage terminal
To obtain tertiary voltage output end voltage signal, i.e. C phase voltage signals.
Optionally, current terminal includes upper current terminal 821 and lower current terminal 822, each upper current terminal 821 and one
Individual lower current terminal 822 matches, and each upper current terminal 821 is connected with a current output terminal 600, when each upper current terminal
During the 822 phase short circuit of lower current terminal that son 821 matches with it, the upper He of current terminal 821 can be obtained by current sensor
Its corresponding 822 current signal of lower current terminal, you can believed with obtaining the electric current of current output terminal 600 by current sensor
Number.
Optionally, electric current, which obtains region 820, can include 6 current terminals, wherein, 6 current terminals are included on 3
Current terminal 821 and 3 lower current terminals 822,3 upper current terminals 821 can be referred to as the upper electricity of current terminal on A, B
Flow current terminal on terminal and C, by with current terminal difference is corresponding on the upper current terminal of current terminal, B on A and C under 3
Current terminal 822 is referred to as current terminal under A, current terminal under current terminal and C under B.When electric under current terminal on A and A
, can be to obtain the first current output terminal current signal, i.e. A phase current signals in current sensor when flowing terminal short circuit；When electric on B
, can be to obtain the second current output terminal current signal in current sensor when flowing current terminal short circuit under terminal and B, i.e. B phases are electric
Flow signal；, can be electric to obtain the 3rd current output terminal in current sensor when current terminal short circuit under current terminal on C and C
Flow signal, i.e. C phase current signals.
Optionally, when use capacitive apparatus electrical operation analogue means provided in an embodiment of the present invention is used for dry run meter
When calculating the absolute medium consumption factor of capacitive apparatus, A phase voltage signals can be obtained by A voltage terminals and D voltage terminals,
A phase current signals are obtained by current terminal under current terminal on short circuit A and A, using A phase voltage signals as reference signal, obtained
To the signal angle Φ between A phase voltage signals and A phase current signalsA, then pass through signal angle ΦAObtain implementation of the present invention
The absolute medium consumption factor tan δ of the A phases of capacitive load 500 in the capacitive apparatus electrical operation analogue means that example providesA；Together
Reason, can obtain B phase voltage signals by B voltage terminals and D voltage terminals, pass through electric current under current terminal on short circuit B and B
Terminal obtains B phase current signals, using B phase voltage signals as reference signal, obtains between B phase voltage signals and B phase current signals
Signal angle ΦB, then pass through signal angle ΦB, so as to obtain the absolute medium consumption factor tan δ of B phasesB；And may be used also
To obtain C phase voltage signals by C voltage terminal and D voltage terminals, pass through current terminal under current terminal on short circuit C and C
To obtain C phase current signals, using C phase voltage signals as reference signal, the letter between C phase voltage signals and C phase current signals is obtained
Number angle ΦC, then pass through signal angle ΦC, so as to obtain the absolute medium consumption factor tan δ of this C phasesC。
Optionally, calculating absolute dielectric loss tan δ formula can be：
Tan δ=tan (90 ° of-Φ)；
Wherein, δ is the absolute dielectric loss angle of each compatibility equipment, and Φ is reference voltage signal and corresponding phase current signal
Between angle
Optionally, can also be used for simulating fortune by capacitive apparatus electrical operation analogue means provided in an embodiment of the present invention
Row calculates the capacitance C of capacitive apparatus.
Optionally, calculating capacitance C formula can be：
C=Icos δ/ω U；
Wherein, I is the current value of three-phase signal, and δ is absolute dielectric loss angle, and ω is the angular frequency value of three-phase signal, and U is
The magnitude of voltage of three-phase signal；Wherein, when measuring capacitive apparatus A phase capacitances, I be A phase current signals current value, ω A
The angular frequency value of phase signals, U are the magnitude of voltage of A phase voltage signals, and when measuring capacitive apparatus B phase capacitances, I is B phase currents
The current value of signal, ω are the angular frequency value of B phase signals, and U is the magnitude of voltage of B phase voltage signals, when measurement capacitive apparatus C phases electricity
During capacity, I is the current value of C phase current signals, and ω is the angular frequency value of C phase signals, and U is the magnitude of voltage of C phase voltage signals.
Optionally, reference picture 2, panel 800 is also in capacitive apparatus electrical operation analogue means provided in an embodiment of the present invention
It can include：Power supply area 830,
Power supply area 830 includes exchange electrical input socket 831 and voltage switch 832, exchanges electrical input socket 831 and power supply
End 100 is connected, and after voltage switch 832 closes, capacitive apparatus electrical operation analogue means provided in an embodiment of the present invention starts
Work, alternating current can be provided to power end 100 by exchanging electrical input socket 831, when voltage switch 832 is non-closed, this
The capacitive apparatus electrical operation analogue means that inventive embodiments provide is stopped.
Optionally, exchange electrical input socket 831 can access 220 volts of electric main.
Optionally, exchange electrical input socket 831 can be first passed through and provide alternating current to power end 100, voltage is closed again and opens
Close 832.
Optionally, capacitive apparatus electrical operation analogue means provided in an embodiment of the present invention can also include：Earth terminal.
Accordingly, optionally, reference picture 2, face in capacitive apparatus electrical operation analogue means provided in an embodiment of the present invention
Plate 800 can also include：Ground terminal 840, it is connected with earth terminal in capacitive apparatus electrical operation analogue means, for by connecing
Ground wire is grounded earth terminal, to prevent the generation of the contingencies such as electric leakage.
Optionally, Fig. 3 shows three-phase signal in capacitive apparatus electrical operation analogue means provided in an embodiment of the present invention
The structured flowchart of generator 200, reference picture 3, the three-phase signal generator 200 can include：Signal generator 210 and phase shift electricity
Road 220, wherein,
Signal generator 210, for producing signal；
Optionally, signal generator 210 can be sine wave signal generator, triangular signal generator and square wave hair
Raw device, generates sine wave signal, triangular signal and square-wave signal respectively.
Optionally, it is that one kind has that signal generator 210, which can use IC L8038, IC L8038,
The accurate oscillating integrated circuit of multiple waveforms output, need to only adjust in IC L8038 an other outer member, just can be from
Middle generation is from 0.001 hertz to the low-distortion sine wave of 300 KHzs, triangular wave, square wave isopulse signal.Integrated circuit
The frequency and dutycycle of ICL8038 output waveforms can by adjust related resistors and capacitance parameter to be controlled, cost
Low, circuit is simple, good operating stability.
Phase-shift circuit 220, it is the road signals of 120 Du tri- for signal caused by signal generator 210 to be divided into phase difference,
Generate three-phase signal, i.e. A phase signals, B phase signals and C phase signals.
Phase-shift circuit 220 is made up of some operational amplifiers, resistance and capacitance component, and phase-shift circuit 220 sends out signal
Standard signal is divided into three road signals all the way caused by raw device 210, by adjusting the resistance parameter on each road, realizes that its three signals are defeated
Phase difference is 120 degree between going out to hold the three road signals exported two-by-two, and the amplitude of three road signals is consistent.Phase-shift circuit
It is most important part in device.
Optionally, Fig. 4 shows another system of capacitive apparatus electrical operation analogue means provided in an embodiment of the present invention
Block diagram, reference picture 4, the capacitive apparatus electrical operation analogue means can also include：Auxiliary switch 900,
One end of auxiliary switch 900 is connected with power end 100, for the power supply inputted from power end 100 to be divided into voltage
It is worth different multiple power supplies, the other end of auxiliary switch 900 is connected with three-phase signal generator 200 and power amplifier 300 respectively, uses
Three-phase signal generator 200 and power amplifier 300 are conveyed to respectively in being classified into the different power supply of magnitude of voltage, wherein, three-phase
The signal generator 210 and phase-shift circuit 220 included in signal generator 200 is connected with auxiliary switch 900, by auxiliary switch
900 are powered to signal generator 210 and phase-shift circuit 220.
Optionally, power end 100 220 volts ACs input auxiliary switch 900 after, produce+24 volts/1 ampere and+
5 volts/1 ampere two groups of accessory power supplys, wherein ,+5 volts of accessory power supply supply three-phase signal generator 200 works；+ 24 volts
Special accessory power supply supply power amplifier 300 works, wherein ,+5 volts of accessory power supply supplies three-phase signal generator simultaneously
Signal generator 210 and phase-shift circuit 220 in 200 work.
Capacitive apparatus electrical operation analogue means provided in an embodiment of the present invention, it is adapted to skills training class to use, can be very
Student is set to understand and grasp the principle and operative skill of such electrical equipment absolute method live detection well, efficient, easy is same
When, there is higher security.
Each embodiment is described by the way of progressive in this specification, what each embodiment stressed be and other
The difference of embodiment, between each embodiment identical similar portion mutually referring to.For device disclosed in embodiment
For, because it is corresponded to the method disclosed in Example, so description is fairly simple, related part is said referring to method part
It is bright.
The foregoing description of the disclosed embodiments, professional and technical personnel in the field are enable to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (9)
- A kind of 1. capacitive apparatus electrical operation analogue means, it is characterised in that including：Power end, three-phase signal generator, power Amplifier, transformer, capacitive load, current output terminal and voltage output end, wherein,The power end is connected with three-phase signal generator and power amplifier respectively, and the three-phase signal generator includes three Signal output part, each signal output part pass through power amplifier, transformer and capacitive load and a current output terminal phase Even, each transformer is connected with a voltage output end；The three-phase signal generator includes：Signal generator and phase-shift circuit, wherein,The signal generator, for producing signal；The phase-shift circuit, it is the road signals of 120 Du tri- for described signal to be divided into phase difference, generates three-phase signal.
- 2. analogue means according to claim 1, it is characterised in that also include：Casing, for accommodating power end, three-phase Signal generator, power amplifier, transformer, capacitive load, current output terminal and voltage output end.
- 3. analogue means according to claim 2, it is characterised in that the power end, three-phase signal generator, power are put Big device, transformer, capacitive load, current output terminal and voltage output end are located at the surface of the casing.
- 4. analogue means according to claim 1, it is characterised in that also include：Panel, the panel obtain including voltage Region and electric current obtain region, and the voltage, which obtains region, includes voltage terminal, for obtaining voltage output terminal voltage signal, institute Stating electric current acquisition region includes current terminal, for obtaining current output terminal current signal.
- 5. analogue means according to claim 4, it is characterised in that the voltage terminal includes first voltage terminal and the Two voltage terminals, each first voltage terminal are connected with a voltage output end, and the voltage output terminal voltage signal of acquisition is the Voltage signal between one voltage terminal and second voltage terminal.
- 6. analogue means according to claim 4, it is characterised in that the current terminal includes upper current terminal and lower electricity Terminal is flowed, each upper current terminal is connected with a current output terminal, passes through upper current terminal and its corresponding lower current terminal Sub- short circuit obtains current output terminal current signal.
- 7. analogue means according to claim 4, it is characterised in that the panel also includes：Power supply area, the power supply Region includes exchange electrical input socket and voltage switch, after the voltage switch closes, is given by the exchange electrical input socket Power end provides alternating current.
- 8. analogue means according to claim 4, it is characterised in thatThe analogue means also includes：Earth terminal；The panel also includes：Ground terminal, it is connected with the earth terminal, for being grounded earth terminal by ground wire.
- 9. analogue means according to claim 1, it is characterised in that also including auxiliary switch, described auxiliary switch one end It is connected with power end, the other end is connected with three-phase signal generator and power amplifier respectively.
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| CN201410720995.9A CN104361802B (en) | 2014-12-02 | 2014-12-02 | A kind of capacitive apparatus electrical operation analogue means |
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| CN107784173B (en) * | 2017-10-26 | 2021-06-11 | 阳光电源股份有限公司 | Three-phase power grid simulation method and three-phase power grid simulator |
| CN117955077B (en) * | 2024-03-27 | 2024-06-25 | 盾石磁能科技有限责任公司 | Charging and discharging control method, device and equipment of flywheel energy storage system |
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| GB2442246A (en) * | 2006-09-27 | 2008-04-02 | Radix Systems Ltd | Light controlled pedestrian crossing with tactile indicator |
| CN202548313U (en) * | 2011-12-12 | 2012-11-21 | 登封市电业(集团)有限公司 | Electromagnetic type voltage transformer tester |
| CN203117320U (en) * | 2013-01-18 | 2013-08-07 | 成都高斯电子技术有限公司 | A high-voltage capacitor testing device |
| CN103116150A (en) * | 2013-01-30 | 2013-05-22 | 中国电力科学研究院 | Verifying device of insulated online monitoring equipment of oxide arrester |
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