CN207336734U - A kind of dielectric dissipation factor standard with remote controler - Google Patents
A kind of dielectric dissipation factor standard with remote controler Download PDFInfo
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- CN207336734U CN207336734U CN201721005391.1U CN201721005391U CN207336734U CN 207336734 U CN207336734 U CN 207336734U CN 201721005391 U CN201721005391 U CN 201721005391U CN 207336734 U CN207336734 U CN 207336734U
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Abstract
The utility model discloses a kind of dielectric dissipation factor standard with remote controler, it is related to dielectric loss measurement equipment technical field in electrical equipment.The dielectric dissipation factor standard with remote controler, including dielectric loss standard body and remote controler, the switching of dielectric loss standard body different stalls can be not only realized by remote controler, and measurement data when testing can be obtained by the display unit on remote controler, verification personnel are thoroughly avoided frequently to enter in high-potting fence the gear switch for carrying out dielectric loss standard body and closely read measurement data, while the work efficiency of verification personnel is improved, verification personnel are completely eliminated into the possibility in high-potting fence, it ensure that the personal safety of verification personnel.
Description
Technical field
The utility model belongs to dielectric loss measurement equipment technical field in electrical equipment, more particularly to a kind of band remote controler
Dielectric dissipation factor standard.
Background technology
The insulation system of electrical equipment is formed by various dielectrics, even in polarizable medium due to the conductance of medium
The bubble-discharge in friction and medium when extremely son rotates, the medium of the place of making under high voltages（Or whole insulation system）It is to have
Loss, this loss becomes dielectric loss, it is the important indicator of insulation of electrical installation performance.Accident in electric system has
Caused by being much due to Insulation Problems, in order to ensure the safe operation of electric system, it is necessary to Insulation Test is carried out, and medium damages
Consumption measurement experiment is the very high Insulation monitoring experiment of a sensitivity.Dielectric dissipation factor standard is a kind of measurement dielectric loss
The self-reacting device of tangent and capacitance, by different stalls come mock standard dielectric loss value, to verify the measurement of dielectric loss instrument
Precision；Dielectric dissipation factor standard can be under power frequency high voltage, the various insulating materials of in-site measurement, insulating sleeve, electric power electricity
The Dielectric loss tangent value and capacitance of the high-tension apparatuses such as cable, capacitor, mutual inductor, transformer, apply pole in electric system
To be frequent, verification task also burdensome.
The dielectric dissipation factor standard that electric bridge laboratory uses at present, carrys out mock standard dielectric loss with different gears（It is situated between
Matter is lost）Value, to verify the measurement accuracy of dielectric loss instrument.On the one hand, different dielectric loss value set need by standard by
Button switches over, and therefore, one group of data experiments terminates every time, is required for staff repeatedly to enter repeatedly in high-potting fence
Next group of medium loss test data are set, 30 groups of data of a dielectric loss instrument whole range is such as verified, high pressure fence need to be entered
30 settings of interior progress could be completed；Testing crew enters high pressure fence, if instrument high pressure does not disconnect or electrion does not fill
Point, also exist by the danger of high-voltage electric shock；On the other hand, when staff's long-distance remote control carries out gear switch, every group of number
According to experiment be required for closely read measurement parameter on the display screen of dielectric dissipation factor standard so that staff is same
Sample needs repeatedly to reduce work efficiency, while exist by the danger of high-voltage electric shock repeatedly close to dielectric dissipation factor standard.
Utility model content
In view of the deficiencies of the prior art, the utility model provides a kind of dielectric dissipation factor standard with remote controler, no
The handover operation of different stalls can be only carried out by remote controler, and experiment can be obtained by the display device on remote controler
Measurement data, thoroughly eliminate verification personnel and frequently enter high pressure fence and the possibility by high-voltage electric shock, improve work efficiency
While ensure verification personnel personal safety.
The utility model is to solve above-mentioned technical problem by the following technical solutions：A kind of medium with remote controler
Loss factor standard device, including dielectric loss standard body and remote controler, the dielectric loss standard body are carried out with the remote controler
Wireless communication connects；The remote controler includes remote controler main control unit and the display being connected respectively with remote controler main control unit
Unit, push-button unit, storage unit, power supply unit and wireless communication unit；The display unit includes being connected with each other aobvious
Show drive circuit and display screen, the display driver circuit is connected with remote controler main control unit；The power supply unit also with it is described
Wireless communication unit connects.
Further, the display screen selects 1.5 cun of the full-color PM-OLED screens of 65K colors.
Further, the storage chip of the storage unit selects the SPI-FLASH chips of 4M bytes.
Further, the power supply unit includes battery accommodating case, rechargeable battery, USB and switch power source adapter；
The rechargeable battery is installed in the battery accommodating case according to positive-negative polarity；The positive and negative anodes of the battery accommodating case respectively with
USB connections；The input terminal of the switch power source adapter is connected with outside 220V power supplys, the switch power source adapter it is defeated
Outlet is connected by data cable with USB, is charged for remote controler.
Further, the switch power source adapter selects 5V switch power source adapters, the 5V switch power source adapters
For phone charger.
Further, the remote controler further includes indicator light and buzzer, the indicator light and buzzer respectively with remote control
Device main control unit connects；The indicator light, is used to indicate whether working properly, and during normal work, indicator light is green, failure
When, indicator light is red；The buzzer, for sounding the alarm when breaking down, reminds verification personnel.
Further, the dielectric loss standard body includes standard capacitor, step resistance unit, optocoupler, gear driving
Module, controller module and the wireless communication module being connected respectively with controller module, display module, gear control mould
Block, key-press module and lithium battery and charging circuit；The gear control module is connected with the gear drive module, the shelves
Position drive module is connected with the optocoupler；The optocoupler is connected with the control terminal of the step resistance unit, the step resistance
First terminals of unit are connected with the lower end of the standard capacitor, and the second terminals of the step resistance unit connect with CX
Line end connects；The upper end of the standard capacitor is connected with high-voltage terminal；The lithium battery and charging circuit are also respectively with showing
Show that module is connected with wireless communication module.
Further, the dielectric loss standard body further includes bridging condenser, one end of the bridging condenser and institute
State the lower end connection of standard capacitor, other end ground connection；Introduce bridging condenser so that the fixed value resistance in step resistance unit
The resistance value and power consumption of device or adjustable resistor are greatly lowered, so that in type selecting, can select relatively low resistance value and work(
The common resistance of consumption, without customized, the cost of manufacture of reduction dielectric loss standard；Reduce fixed resistor or adjustable electric at the same time
The power consumption of device is hindered, the influence generated heat by fixed resistor or adjustable resistor to measurement data stability is reduced, improves dielectric loss
The stability and measurement accuracy of standard.
Further, the optocoupler includes light emitting part, light receiving part and signal amplifying part point；The light emitting portion
It is divided into input terminal chip, the light receiving part and signal amplifying part are divided into output terminal chip；The output terminal chip includes light
Quick diode, diode, the first transistor, second transistor and load resistance；The cathode of the photodiode respectively with
The collector connection of the base stage of the first transistor, second transistor, the anode of the photodiode respectively with the first transistor
Collector, load resistance one end connection；The emitter of the first transistor, the base stage of second transistor respectively with it is described
The cathode connection of diode；The anode of the diode, the emitter of second transistor are grounded respectively；The load resistance it is another
One end forms the output terminal of optocoupler with ground, and the both ends of the light emitting part form the input terminal of optocoupler；In the output terminal of optocoupler
Second transistor and diode are added, the first transistor can be made to depart from depth saturation state rapidly, accelerates the first transistor
Junction capacity electric discharge, reduce the base emitter extreme junction capacity effect of the first transistor, when output load resistance is constant, greatly
The output speed of optocoupler is improved greatly, so as to improve the switch speed of gear；Gear switch signal controls stepping by optocoupler
Resistance unit acts, and avoids the formation of interference signal, ensures equipment normal operation.
Compared with prior art, the dielectric dissipation factor standard provided by the utility model with remote controler, including be situated between
Standard body and remote controler are damaged, the switching of dielectric loss standard body different stalls can be not only realized by remote controler, may be used also
To obtain measurement data when testing from the display unit of remote controler, verification personnel are thoroughly avoided frequently to be enclosed into high-potting
The gear switch of dielectric loss standard body is carried out in column and closely reads measurement data, is improving the work efficiency of verification personnel
While, verification personnel are completely eliminated into the possibility in high-potting fence, ensure that the personal safety of verification personnel；
The remote control power source unit of the utility model is charged by 5V switch power source adapters, and 5V switch power source adapters can use
Phone charger, without buying, reduces use cost, and simple in structure, and easy to use, power supply stability is good.
Brief description of the drawings
, below will be to needed in embodiment description in order to illustrate more clearly of the technical solution of the utility model
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only one embodiment of the utility model, for
For those of ordinary skill in the art, without creative efforts, other can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is a kind of structure diagram of the dielectric dissipation factor standard with remote controler of the utility model；
Fig. 2 is the structure diagram of the utility model remote controler；
Fig. 3 is the inside schematic diagram of the utility model optocoupler；
Wherein：1- high-voltage terminals, 2-CX terminals, 3- step resistance units, 4- bridging condensers, 5- standard capacitances
Device, 6- resistors, 7- relays, 8- dielectric loss standard bodies.
Embodiment
With reference to the attached drawing in the utility model embodiment, technical solution of this implementation in new is carried out clear, complete
Site preparation describes, it is clear that the described embodiments are only a part of the embodiments of the utility model, instead of all the embodiments.
Based on the embodiment in the utility model, those of ordinary skill in the art are obtained on the premise of creative work is not made
Every other embodiment, shall fall within the protection scope of the present invention.
As depicted in figs. 1 and 2, a kind of dielectric dissipation factor standard with remote controler provided by the utility model, bag
Dielectric loss standard body 8 and remote controler are included, dielectric loss standard body 8 carries out wireless communication with remote controler and is connected；Remote controler includes
Remote controler main control unit and the display unit being connected respectively with remote controler main control unit, push-button unit, storage unit, power supply
Unit and wireless communication unit；Display unit includes the display driver circuit and display screen being connected with each other, display driver circuit
It is connected with remote controler main control unit；Power supply unit is also connected with wireless communication unit.
Remote controler main control unit selects the control chip of STM32 series or MSP430 series；Wireless communication unit is selected
2.4G radio receiving transmitting modules NRF24L01；Display screen selects 1.5 cun of the full-color PM-OLED screens of 65K colors；The storage core of storage unit
Piece selects the SPI-FLASH chips of 4M bytes；Push-button unit includes switching on and shutting down button and gear shift button, gear shift button include again to
Upper gear shift button and downward gear shift button.
The power supply unit of remote controler includes battery accommodating case, rechargeable battery, USB and switch power source adapter；Charging
Battery is installed in battery accommodating case according to positive-negative polarity；The positive and negative anodes of battery accommodating case are connected with USB respectively；Switching Power Supply
The input terminal of adapter is connected with outside 220V power supplys, and the output terminal of switch power source adapter is connected by data cable with USB,
Charge for remote controler；Charged in real time to remote controler by switch power source adapter, and can be with work while charging
Make；Meanwhile switch power source adapter selects 5V switch power source adapters, 5V switch power source adapters are phone charger；It is daily
Phone charger used can meet the charge requirement of remote controler, without in addition buying, reduce use cost, and structure letter
Single, easy to use, power supply stability is good.
As shown in Fig. 2, remote controler further includes indicator light and buzzer, indicator light and buzzer respectively with remote controler master control list
Member connection；Indicator light, is used to indicate whether working properly, and during normal work, indicator light is green, and during failure, indicator light is red
Color；Buzzer, for sounding the alarm when breaking down, reminds verification personnel.
As shown in Figure 1, dielectric loss standard body 8 includes standard capacitor 5, step resistance unit 3, optocoupler, gear driving
Module, controller module and the wireless communication module being connected respectively with controller module, display module, gear control mould
Block, key-press module and lithium battery and charging circuit；Gear control module is connected with gear drive module, gear drive module with
Optocoupler connects；Optocoupler is connected with the control terminal of step resistance unit 3, the first terminals and standard capacitance of step resistance unit 3
The lower end connection of device 5, the second terminals of step resistance unit 3 are connected with CX terminals 2；The upper end of standard capacitor 5 and height
Crimping line end 1 connects；Lithium battery and charging circuit are also connected with display module and wireless communication module respectively.
Standard capacitor 5 selects SF6 standard capacitors, and capacitance nominal value is 100PF, and dielectric loss standard value is 0.000%,
SF6 standard capacitors capacitance in itself and dielectric loss are extremely stable, and air pressure and temperature, the change of humidity are non-to capacitive effect
It is often small, improve measurement accuracy.
Step resistance unit 3 is made of the stepping subelement of multiple connections that are in series, and each stepping subelement is by resistor 6
It is connected in parallel with relay 7.
The controller module of dielectric loss standard body 8 selects the control chip of STM32 series or MSP430 series；Channel radio
Interrogate module and select 2.4G radio receiving transmitting modules NRF24L01；Gear control module selects the control chip of STM32 series；Show mould
Block includes standard display driver circuit and standard display screen, and standard display screen selects OLED screen, it is not necessary to backlight, lightly
Matter is thin.Key-press module turns over button including turning over button with, for stirring switching gear up and down.
Lithium battery and charging circuit include power supply adaptor, 9000mAH built-in lithium batteries and lithium battery managing chip, electricity
The input terminal of source adapter is connected with outside 220V power supplys, and output terminal is connected with the input terminal of lithium battery managing chip, lithium battery
The output terminal of managing chip is connected with controller module and 9000mAH built-in lithium batteries respectively, built-in lithium battery device mould in order to control
Block and wireless communication module provide power supply.
Dielectric loss standard body 8 further includes bridging condenser, and one end of bridging condenser and the lower end of standard capacitor connect
Connect, other end ground connection；Introduce bridging condenser so that the resistance value and power consumption of the resistor 6 in step resistance unit significantly drop
It is low, so that in type selecting, the common resistance of relatively low resistance value and power consumption can be selected, without customized, reduction dielectric loss mark
The cost of manufacture of quasi- device；The power consumption of resistor 6 is reduced at the same time, reduces the shadow to generate heat by resistor 6 to measurement data stability
Ring, improve the stability and measurement accuracy of dielectric loss standard.
As shown in figure 3, optocoupler includes light emitting part EM, light receiving part and signal amplifying part point；Light emitting part EM
For input terminal chip, light receiving part and signal amplifying part are divided into output terminal chip；Output terminal chip include photodiode PD,
Diode D, the first transistor T1, second transistor T2 and load resistance R；The cathode of photodiode PD is brilliant with first respectively
The base stage of body pipe T1, the collector connection of second transistor T2, the anode of photodiode PD is respectively with the first transistor T1's
One end connection of collector, load resistance R；The emitter of the first transistor T1, the base stage of second transistor T2 respectively with two poles
The cathode connection of pipe D；Anode, the emitter of second transistor T2 of diode D is grounded respectively；The other end of load resistance R with
Ground forms the output terminal of optocoupler, and the both ends of light emitting part EM form the input terminal of optocoupler；Is added in the output terminal of optocoupler
Two-transistor T2 and diode D, can make the first transistor T1 depart from depth saturation state rapidly, accelerate the first transistor T1's
Junction capacity is discharged, and reduces the extreme junction capacity effect of base emitter of the first transistor T1, when output load resistance R is constant, greatly
The output speed of optocoupler is improved greatly, so as to improve the switch speed of gear；The gear switch signal of gear drive module output
Control the relay 7 in step resistance unit 3 to act by optocoupler, avoid the formation of interference signal, ensure equipment normal operation.
During experiment, gear switch is carried out by the gear shift button of remote controler, the wireless communication unit of remote controler believes gear shift
Number send, shift signal is received by the wireless communication module of dielectric loss standard body 8, shift signal passes through dielectric loss standard body
8 controller module analyzes and processes backward gear control module and sends gear switch control signal, and gear control module is to gear
Switch-over control signal is handled by analysis to be determined to need the relay 7 driven, and sends driving instruction, is driven by gear drive module
Motor type relay 7 acts, and completes gear-change operation；The display module of dielectric loss standard body 8 shows measurement data, the measurement data
Signal is sent through wireless communication module, by remote controler wireless communication unit receive, by remote controler main control unit processing after
The full-color PM-OLED screen displays of 1.5 cun of 65K colors of remote controler, read measurement data, without closely to verify personnel
Contact dielectric loss standard body 8 and obtain measurement data.
Above disclosed is only specific embodiment of the present utility model, but the scope of protection of the utility model not office
It is limited to this, any one skilled in the art can readily occur in change in the technical scope that the utility model discloses
Change or modification, should be covered within the scope of the utility model.
Claims (9)
- A kind of 1. dielectric dissipation factor standard with remote controler, it is characterised in that：Including dielectric loss standard body and remote controler, The dielectric loss standard body carries out wireless communication with the remote controler and is connected；The remote controler include remote controler main control unit with And display unit, push-button unit, storage unit, power supply unit and the wireless telecommunications being connected respectively with remote controler main control unit Unit；The display unit includes the display driver circuit and display screen being connected with each other, the display driver circuit and remote controler Main control unit connects；The power supply unit is also connected with the wireless communication unit.
- 2. the dielectric dissipation factor standard with remote controler as claimed in claim 1, it is characterised in that：The display screen is selected 1.5 cun of the full-color PM-OLED screens of 65K colors.
- 3. the dielectric dissipation factor standard with remote controler as claimed in claim 1, it is characterised in that：The storage unit Storage chip selects the SPI-FLASH chips of 4M bytes.
- 4. the dielectric dissipation factor standard with remote controler as claimed in claim 1, it is characterised in that：The power supply unit bag Include battery accommodating case, rechargeable battery, USB and switch power source adapter；The rechargeable battery is installed on according to positive-negative polarity In the battery accommodating case；The positive and negative anodes of the battery accommodating case are connected with USB respectively；The switch power source adapter it is defeated Enter end to be connected with outside 220V power supplys, the output terminal of the switch power source adapter is connected by data cable with USB, for remote control Device charges.
- 5. the dielectric dissipation factor standard with remote controler as claimed in claim 4, it is characterised in that：The Switching Power Supply is fitted Orchestration selects 5V switch power source adapters, and the 5V switch power source adapters are phone charger.
- 6. the dielectric dissipation factor standard with remote controler as claimed in claim 1, it is characterised in that：The remote controler also wraps Indicator light and buzzer are included, the indicator light and buzzer are connected with remote controler main control unit respectively；The indicator light, for referring to Whether working properly show；The buzzer, for sounding the alarm when breaking down.
- 7. the dielectric dissipation factor standard with remote controler as claimed in claim 1, it is characterised in that：The dielectric loss standard Body include standard capacitor, step resistance unit, optocoupler, gear drive module, controller module and respectively with controller Wireless communication module, display module, gear control module, key-press module and lithium battery and the charging circuit that module is connected； The gear control module is connected with the gear drive module, and the gear drive module is connected with the optocoupler；The light Coupling is connected with the control terminal of the step resistance unit, the first terminals and the standard capacitor of the step resistance unit Lower end connection, the second terminals of the step resistance unit are connected with CX terminals；The upper end of the standard capacitor with High-voltage terminal connects；The lithium battery and charging circuit are also connected with display module and wireless communication module respectively.
- 8. the dielectric dissipation factor standard with remote controler as described in claim 1 or 7, it is characterised in that：The dielectric loss mark Quasi- device body further includes bridging condenser, and one end of the bridging condenser is connected with the lower end of the standard capacitor, another End ground connection.
- 9. the dielectric dissipation factor standard with remote controler as claimed in claim 7, it is characterised in that：The optocoupler includes light Emitting portion, light receiving part and signal amplifying part point；The light emitting part is input terminal chip, the light receiving part and Signal amplifying part is divided into output terminal chip；The output terminal chip includes photodiode, diode, the first transistor, second Transistor and load resistance；The cathode of the photodiode base stage with the first transistor, the collection of second transistor respectively Electrode connects, and the collector with the first transistor, one end of load resistance are connected the anode of the photodiode respectively；It is described The cathode of the emitter of the first transistor, the base stage of second transistor respectively with the diode is connected；The diode is born Pole, the emitter of second transistor are grounded respectively；The other end of the load resistance forms the output terminal of optocoupler, the light with ground The both ends of emitting portion form the input terminal of optocoupler.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721005391.1U CN207336734U (en) | 2017-08-11 | 2017-08-11 | A kind of dielectric dissipation factor standard with remote controler |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721005391.1U CN207336734U (en) | 2017-08-11 | 2017-08-11 | A kind of dielectric dissipation factor standard with remote controler |
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| CN207336734U true CN207336734U (en) | 2018-05-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109581264A (en) * | 2019-01-08 | 2019-04-05 | 任守华 | A kind of capacitance and dielectric loss standard |
-
2017
- 2017-08-11 CN CN201721005391.1U patent/CN207336734U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109581264A (en) * | 2019-01-08 | 2019-04-05 | 任守华 | A kind of capacitance and dielectric loss standard |
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