CN206481056U - Switch cubicle harmonic shutter with multiple terminals monitoring device - Google Patents
Switch cubicle harmonic shutter with multiple terminals monitoring device Download PDFInfo
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- CN206481056U CN206481056U CN201621300402.4U CN201621300402U CN206481056U CN 206481056 U CN206481056 U CN 206481056U CN 201621300402 U CN201621300402 U CN 201621300402U CN 206481056 U CN206481056 U CN 206481056U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/40—Arrangements for reducing harmonics
Abstract
The utility model discloses a kind of switch cubicle harmonic shutter with multiple terminals monitoring device, its drip irrigation device is to include Detecting Power Harmonicies suppressor body and the mechanism for monitoring that is connected on Detecting Power Harmonicies suppressor body states monitoring device and includes microcontroller, wave filter and data acquisition device, data acquisition module includes the signal amplifier that harmonic wave intensity sensor and harmonic intensity sensor link together, data acquisition module is connected on a microcontroller by wave filter, signal transmitting apparatus is connected with microcontroller, monitoring personnel's display operation terminal is also associated with signal transmitting apparatus, mechanism for monitoring is connected on Detecting Power Harmonicies suppressor body by signal transmitting apparatus and monitoring personnel's display operation terminal, the utility model has the advantage of do not start Detecting Power Harmonicies suppressor body when harmonic wave intensity is little in cabinet, when find cabinet in harmonic wave intensity increase to can influence grid supply quality and electrical equipment normal work when, Detecting Power Harmonicies suppressor body will be started to disturb harmonic wave, ensure that equipment runs well.
Description
Technical field
The utility model is related to a kind of electrically monitoring regulation device, more specifically, it relates to a kind of with multiple terminals prison
Survey the switch cubicle harmonic shutter of device.
Background technology
The appearance of harmonic current has had for many years in electric power system.Past, harmonic current is by electric railway
With industry DC speed regulation transmission device used in, as exchange conversion for direct current mercury rectifier produced by.In recent years,
The device type and quantity for producing harmonic wave have increased severely, and will continue to increase.So, we must cautiously consider very much harmonic wave and
Its harmful effect, and how harmful effect is reduced to all nonlinear-loads of minimum and can produce harmonic current, greatly
Most modern electronic equipments all uses switched-mode power supply (SMPS).They are different with old-fashioned equipment, and they are by tradition
Reducing transformer and rectifier be substituted for by power supply directly through controllable rectifying device go give reservoir capacitor charge, then with one
Plant the DC current needed for the method output matched with required output voltage and electric current.This benefit for equipment manufacturing
It is that can be greatly reduced using the size, price and weight of device, its shortcoming is that it is all no matter it is any model
Continuous electric current can not be drawn from power supply, and pulse current can only be drawn.This pulse current contains substantial amounts of three times and high order is humorous
The component of ripple, can cause following harm to distribution line：
1st, due to voltage distortion, contained high-frequency components will cause to generate electricity, transmit electricity, power transformation, distribution and with apparatus overheat, damage
Consume increase, system overvoltage, out of control etc..Power current is equally distributed in transmission pressure section, and high frequency electric is then produced
The raw Kelvin effect punished severely, increases wire effective resistance.Such as 300mm2 wires, during by power current, close center half
It on the 90% of average value, the semi-area of surface one is 100% that current density on work semi-area, which is, and at this moment, current density is average
It is 110% on the 90% of value, the semi-area of surface one, at this moment, total loss of the electric current on conductor is inside and outside two parts sum,
Ii2Ri+I02R0=((0.9/2) I) 2.2R+ ((1.1/2) I) 2.2R=1.01I2R
With the rise of frequency, also increasingly increased is notable for Kelvin effect, and effective resistance is also bigger.It is 1.21 during 300HZ
Times, it is 1.35I2R during 420HZ.Due to current waveform distortion, the electric current of conductor is flowed through in addition to fundamental wave, higher hamonic wave is added again
Current component.Being connected to the grid loss of a large amount of nonlinear loads will increase, and conductor temp.-elevating is more serious, and system electrical equipment also will
Job insecurity etc..
2nd, the neutral conductor：In three-phase four-wire system, the neutral conductor is by by the shadow for the nonlinear load being connected in phase voltage
Ring.Under normal circumstances, during three-phase linear load balance, the electric current of the neutral conductor is zero.When there is nonlinear load, Mou Xiegao
Subharmonic is that odd harmonic can stack up in the neutral conductor.The load current being such as made up of triplen is more and more
When, the electric current not being cancelled more will flow in the neutral conductor.In this case, the overcurrent of the neutral conductor can also be in
Property line and ground wire between produce change higher than normal voltage.Rising sun fruit neutral current is especially big, and even more than its wire is specified
The 80% of electric current, then have to the secondary load of cut-out, otherwise must just increase the sectional area of the neutral conductor.
3rd, power circuit, when harmonic current is by overhead line, it is possible to create series resonance, or even causes the excessively electric of danger
Pressure.Power cable is under harmonic voltage effect, and its insulating materials can be because of contained a small amount of gas ionization and through electric, machinery, thing
Reason and chemical change and accelerated ageing.Dielectric strength is reduced, leakage current increase, makes the lost of life.Such as normal power current electricity
Pressure, the life-span is 25 years, and under containing five times, the effect of the seventh harmonic Current Voltage, the life-span is only 9 years.The harm of harmonic wave can
See general.Significantly harmonic wave is also possible to cause shelf depreciation high frequency, produces internal breakdown situation.
In summary, solve the problems, such as harmonic wave interference the problem of one during present electrification is produced extremely urgent.
At present, Patent No. CN104821585A Chinese patent discloses a kind of limitation of high harmonics dress of switch cubicle
Put, it is related to electric controling switch cabinet technical field.It is characterized in that including power network, active harmonics adjuster and non-linear negative
Carry, power network is connected by active harmonics adjuster with nonlinear load.The utility model can convey one and non-thread to grid side
Property the opposite harmonic wave of harmonic wave that produces of load, so as to reach the effect of harmonics restraint.Although this limitation of high harmonics device energy
Play a part of suppressing harmonic wave, but persistently convey reverse harmonic wave that great energy resource consumption can be caused to a certain extent, it is most preferable
Method still persistently the harmonic wave situation in switch cabinet body is persistently monitored, the moment monitor harmonic wave situation of change,
Harmonic wave intensity, which is increased to, restarts harmonic suppression apparatus when switch cabinet system can be influenceed to run well and is intervened.
Utility model content
In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of with multiple terminals monitoring device
Switch cubicle harmonic shutter.
To achieve the above object, the utility model is adopted the following technical scheme that：A kind of opening with multiple terminals monitoring device
Close cabinet harmonic shutter, including matrix, Detecting Power Harmonicies suppressor body and the monitoring that is connected on Detecting Power Harmonicies suppressor body
Mechanism, the monitoring device includes microcontroller, wave filter and data acquisition device, and it is strong that the data acquisition module includes harmonic wave
The signal amplifier that degree sensor and harmonic intensity sensor link together, the data acquisition module is connected by wave filter
Connect on a microcontroller, be connected with the microcontroller on signal transmitting apparatus, the signal transmitting apparatus and be also associated with prison
Survey personnel display operation terminal, the mechanism for monitoring is connected to humorous by signal transmitting apparatus and monitoring personnel's display operation terminal
On ripple monitoring suppressor body.
As preferred, triggering is additionally provided between monitoring personnel's display operation terminal harmonic monitoring suppressor body
Formula starter.
As preferred, the signal transmitting apparatus is wire signal transmitting device and wireless signal transmission.
As preferred, the signal transmitting apparatus is wireless signal transmission, and the wireless signal transmission leads to
Cross wireless network to be connected in cloud computing storehouse, monitoring personnel's display operation terminal includes mobile phone and flat board this class individual moves
Dynamic terminal.
As preferred, the signal transmitting apparatus is wire signal transmitting device, and the wire signal transmitting device leads to
Cross cable network to be connected in monitoring personnel's display operation terminal, monitoring personnel's display operation terminal is host computer
The utility model is compared compared with the prior art to be had：Pass through signal transmitting apparatus and monitoring personnel's display operation terminal
To connect mechanism for monitoring harmonic monitoring suppressor body, the harmonic wave intensity in switch cubicle can be put to the control with monitoring personnel
Among, it need not start Detecting Power Harmonicies suppressor body when harmonic wave intensity is not enough to influence circuit normal work in cabinet, when
Monitoring personnel has found that harmonic wave intensity is increased to when can influence circuit and electrical equipment normal work in cabinet, and monitoring personnel will open
Dynamic Detecting Power Harmonicies suppressor body is disturbed the harmonic wave in cabinet, it is ensured that the normal operation of equipment.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of switch cubicle harmonic shutter of the utility model with multiple terminals monitoring device
Figure；
Fig. 2 is the workflow of the embodiment of switch cubicle harmonic shutter of the utility model with multiple terminals monitoring device
Block diagram.
In figure：1st, matrix；2nd, harmonic wave intensity sensor；3rd, signal amplifier；4th, wave filter；5th, signal transmitting apparatus；51、
Wire signal transmitting device；52nd, wireless signal transmission；6th, monitoring personnel's display operation terminal；61st, host computer；62nd, it is personal
Mobile terminal；7th, trigger-type starter；8th, Detecting Power Harmonicies suppressor body.
Embodiment
Below in conjunction with the accompanying drawings to the embodiment of switch cubicle harmonic shutter of the utility model with multiple terminals monitoring device
It is described further.
A kind of switch cubicle harmonic shutter with multiple terminals monitoring device, including matrix 1, Detecting Power Harmonicies suppressor body
8 adopt with the mechanism for monitoring being connected on Detecting Power Harmonicies suppressor body 8, monitoring device including microcontroller, wave filter 4 and data
Acquisition means, data acquisition module includes the signal amplification that harmonic wave intensity sensor 2 and harmonic intensity sensor 2 link together
Device 3, data acquisition module is connected on a microcontroller by wave filter 4, and signal transmitting apparatus 5 is connected with microcontroller, letter
Monitoring personnel's display operation terminal 6 is also associated with number transmitting device 5, mechanism for monitoring passes through signal transmitting apparatus 5 and monitoring people
Member's display operation terminal 6 is connected on Detecting Power Harmonicies suppressor body 8.Pass through signal transmitting apparatus 5 and monitoring personnel display behaviour
Make terminal 6 to connect mechanism for monitoring harmonic monitoring suppressor body 8, the harmonic wave intensity in switch cubicle can be put and monitoring people
Among the control of member, Detecting Power Harmonicies suppressor need not be started when harmonic wave intensity is not enough to influence circuit normal work in cabinet
Body 8, when monitoring personnel find cabinet in harmonic wave intensity increase to can influence circuit and electrical equipment normal work when, monitor people
Member will start Detecting Power Harmonicies suppressor body 8 and the harmonic wave in cabinet is disturbed, it is ensured that the normal operation of equipment.But consider
When having most eventually to manpower, when having careless omission unavoidably by manually carrying out management and control operation, once there is harmonic wave mistake in electrical equipment
Greatly, it is often serious according to being generated heat into capacitor element, or even fire is caused, induce serious production accident.Therefore in monitoring personnel
Also need to set trigger-type starter 7 between display operation terminal 6 harmonic monitoring suppressor body 8.In advance can be by right
The physical parameter of the equipment monitored is calculated, calculates the maximum intensity for the harmonic wave that switch cubicle can bear, by this threshold value
Typing trigger-type starter 7 is electronically activated in element, when it monitors that harmonic wave intensity exceedes threshold value and monitoring personnel in equipment
When not starting Detecting Power Harmonicies suppressor body 8, this trigger-type starter 7 triggering can start Detecting Power Harmonicies suppressor automatically
Body 8, it is also possible to the manual-lock device that trigger-type starter 7 is set in operation terminal 6 is shown in monitoring personnel, from
And can in trigger-type 7 error starting of starter can manual-lock Detecting Power Harmonicies suppressor body 8, so as to play the effect of energy-conservation
Really.
Signal transmitting apparatus 5 is wire signal transmitting device 51 and wireless signal transmission 52.Signal transmitting apparatus 5 is
Wireless signal transmission 52, wireless signal transmission 52 is connected in cloud computing storehouse by wireless network, and monitoring personnel shows
Show that operation terminal 6 includes mobile phone and flat board this class individual mobile terminal；Signal transmitting apparatus 5 is wire signal transmitting device
51, wire signal transmitting device 51 is connected in monitoring personnel's display operation terminal 6 by cable network, and monitoring personnel shows
Operation terminal 6 is host computer.Individual mobile terminal includes the mobile terminals, wireless signal transmission such as mobile phone, flat board, notebook computer
Device accesses internet by wireless signal and is connected to by internet on individual mobile terminal.By wireless signal transmission
Device accesses internet by wireless signal, and is transmitted directly to the signal that data acquisition module is obtained by internet
In injection mobile phone used in everyday, flat board and notebook computer this class personal data terminal, just drastically increase as value people
The free degree of member, is supervised without the signal for arranging special messenger to transmit out data acquisition module in special job site
Control, it is only necessary to which the employee that monitoring task is assigned into technical foundation carries out rotation system, greatly reduces artificial and material
Cost, while wireless network is additionally attached on cloud computing storehouse, cloud computing storehouse is connected to cloud database, will can be adopted in monitoring process
The harmonic wave intensity data of collection is recorded, and contributes to engineers and technicians to carry out with reference to and be improved further to carry to equipment
The efficiency of high equipment.
Described 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 switch cubicle harmonic shutter with multiple terminals monitoring device, including matrix, Detecting Power Harmonicies suppressor body and
The mechanism for monitoring on Detecting Power Harmonicies suppressor body is connected to, the monitoring device is adopted including microcontroller, wave filter and data
Acquisition means, the data acquisition module is put including the signal that harmonic wave intensity sensor and harmonic intensity sensor link together
Big device, the data acquisition module is connected on a microcontroller by wave filter, it is characterised in that：Connected on the microcontroller
Have and monitoring personnel's display operation terminal is also associated with signal transmitting apparatus, the signal transmitting apparatus, the mechanism for monitoring leads to
Cross signal transmitting apparatus and monitoring personnel's display operation terminal is connected on Detecting Power Harmonicies suppressor body.
2. the switch cubicle harmonic shutter according to claim 1 with multiple terminals monitoring device, it is characterised in that：It is described
Trigger-type starter is additionally provided between monitoring personnel's display operation terminal harmonic monitoring suppressor body.
3. the switch cubicle harmonic shutter according to claim 1 with multiple terminals monitoring device, it is characterised in that：It is described
Signal transmitting apparatus is wire signal transmitting device and wireless signal transmission.
4. the switch cubicle harmonic shutter according to claim 3 with multiple terminals monitoring device, it is characterised in that：It is described
Signal transmitting apparatus is wireless signal transmission, and the wireless signal transmission is connected to cloud computing storehouse by wireless network
In, monitoring personnel display operation terminal includes mobile phone and flat board this class individual mobile terminal.
5. the switch cubicle harmonic shutter according to claim 3 with multiple terminals monitoring device, it is characterised in that：It is described
Signal transmitting apparatus is wire signal transmitting device, and the wire signal transmitting device is connected to monitoring personnel by cable network
In display operation terminal, monitoring personnel's display operation terminal is host computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621300402.4U CN206481056U (en) | 2016-11-30 | 2016-11-30 | Switch cubicle harmonic shutter with multiple terminals monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621300402.4U CN206481056U (en) | 2016-11-30 | 2016-11-30 | Switch cubicle harmonic shutter with multiple terminals monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206481056U true CN206481056U (en) | 2017-09-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621300402.4U Active CN206481056U (en) | 2016-11-30 | 2016-11-30 | Switch cubicle harmonic shutter with multiple terminals monitoring device |
Country Status (1)
| Country | Link |
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| CN (1) | CN206481056U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106972491A (en) * | 2016-11-30 | 2017-07-21 | 上海新辉电器有限公司 | Switch cubicle harmonic shutter with multiple terminals monitoring device |
-
2016
- 2016-11-30 CN CN201621300402.4U patent/CN206481056U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106972491A (en) * | 2016-11-30 | 2017-07-21 | 上海新辉电器有限公司 | Switch cubicle harmonic shutter with multiple terminals monitoring device |
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