CN207398825U - A kind of low-voltage circuit protection supervisory equipment - Google Patents
A kind of low-voltage circuit protection supervisory equipment Download PDFInfo
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- CN207398825U CN207398825U CN201721483779.2U CN201721483779U CN207398825U CN 207398825 U CN207398825 U CN 207398825U CN 201721483779 U CN201721483779 U CN 201721483779U CN 207398825 U CN207398825 U CN 207398825U
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Abstract
The utility model discloses a kind of low-voltage circuit protection supervisory equipments, and including babinet, A plug-in units, B plug-in units, processor, human-computer interaction module and supplemental functionality are respectively equipped in the babinet, wherein；The A plug-in units include outputing circuit, open entry loop and electric power loop.Advantageous effect：The device protects circuit using traditional linear quadratic control is simplified; provide perfect control and safeguard measure; the communication networking based on a variety of bus modes is can also be achieved as intelligent terminal; realize decentralised control protection and centralized management; the application of controller shortens construction period; greatly improve design and production efficiency; reduce user's field adjustable and maintenance workload simultaneously; small product size is small; it is compact-sized; it is easy for installation, use can be mounted directly in 1/4 modulus and any of the above drawout cubicle, convenient for adapting to the demand under varying environment.
Description
Technical field
The utility model is related to control circuit technical field, it particularly relates to a kind of low-voltage circuit protection supervisory equipment.
Background technology
Inlet wire feeder line is the noun during power engineering is used, and belongs to the peculiar noun of power transformation engineering.As its name suggests, refer to become
The variation of circuit in electric process.Traditional low pressure inlet wire/feeder line linear quadratic control circuit is usually realized by hardwire, of high cost, control
Principle processed and wiring are complicated, and design, debugging and maintenance workload are big, and go wrong difficult investigation；Traditional low pressure inlet wire/feeder line is protected
Shield is mainly protected using breaker primary current, and protection domain is narrow, precision and reliability are low, power consumption is big, much need not cause
The economic loss wanted.
The problem of in correlation technique, currently no effective solution has been proposed.
Utility model content
The problem of in correlation technique, the purpose of this utility model are to propose a kind of low-voltage circuit protection supervisory equipment,
To overcome the above-mentioned technical problem present in existing correlation technique.
What the technical solution of the utility model was realized in：
A kind of low-voltage circuit protection supervisory equipment including babinet, is respectively equipped with A plug-in units, B plug-in units, processing in the babinet
Device, human-computer interaction module and supplemental functionality, wherein；
The A plug-in units include outputing circuit, open entry loop and electric power loop；
The B plug-in units include ac voltage circuit, alternating current circuit, communication loop, analog output circuit and environment
Temperature-humidity monitoring circuit；
The human-computer interaction module includes light-emitting diode display and man-machine interface management, and the man-machine interface management includes entree
Single, the output terminal of the main menu is connected with the input that the input terminal of operation information, the input terminal of event report, system are set
The input terminal at end, the input terminal of Protection parameters, the input terminal of device to test and other information, the output terminal of the operation information connect
The input terminal of the input terminal of fundamental wave value, the input terminal of measured value, charge value is connected to, the output terminal of the event report is connected with report
The input terminal of announcement display, the output terminal that the system is set and the input terminal of the systematic parameter, the input terminal of time adjustment, survey
It can the input terminal of verification, the outlet input terminal, the input terminal of serial port setting, the input terminal of simulation output, the zeros data that set
The input terminal of input terminal and contrast, the output terminal of the Protection parameters are connected with the input terminal of pressing plate setting and the input of definite value
End, described device test output terminal be connected with output the input terminal of transmission, open into inspection input terminal and alternating-current measurement it is defeated
Enter end, the output terminal of the other information is connected with the input terminal of version information and the input terminal of company information；
The supplemental functionality includes buzzer and driving circuit.
Further, it is described output circuit including trip protection leading-out terminal A01 ~ A02, combined floodgate, separating brake output it is public
A06 ~ A07 of the A03 at end, the close a floodgate A04 exported, the A05 that separating brake exports and signal output contact.
Further, the open entry loop includes A08~A17 of DI intakes and opens the A18 into common port, and the DI
Intake is respectively connected to breaker open operation position, breaker closing position, close a floodgate input and separating brake input.
Further, the electric power loop includes the A19~A20 for being respectively connected to installation's power source L/+, N/-.
Further, the ac voltage circuit includes being respectively connected to Ua (U phases), Ub (V phases), Uc (W phases) and Un (neutrality
Line) B01, B02, B03 and B04.
Further, the alternating current circuit include being respectively connected to the Ia (yellow) of power pack CT, Ib (green),
B05, B06, B07 and B08 of Ic (red) and In (black) and the I0 for being respectively connected to electric leakage (residue) power pack LCT
The B09 and B10 of (blueness) and In (black).
Further, the communication loop includes the B11~B12 and B13~B14 of two-way RS-485 serial line interfaces.
Further, the analog output circuit includes B15~B16 of simulation output terminal, and B15 is just, B16 is
It is negative.
Further, the B17 of the ambient temperature and humidity monitoring circuit including digital environment humidity sensor interface,
B18, B19 and B20.
The beneficial effects of the utility model：The fast throughput of microprocessor is utilized by device, with reference to specific volume
Determine parameter and time that user adjusts and threshold parameters to inlet wire/feeder line whether exception and fault category carry out it is correct judge and
It is handled differently, it is ensured that the safe operation of system, and it is a variety of to pass through chinese liquid crystal display, sound, light instruction, signal output and communication etc.
Form informs user in time, which provides perfect control and guarantor using traditional linear quadratic control protection circuit is simplified
Shield measure can also be achieved the communication networking based on a variety of bus modes as intelligent terminal, realize decentralised control protection and
Centralized management, the application of controller shorten construction period, greatly improve design and production efficiency, while reduce user
Field adjustable and maintenance workload, small product size is small, compact-sized, easy for installation, in 1/4 modulus and any of the above drawout cubicle
Use can be mounted directly, convenient for adapting to the demand under varying environment.
Description of the drawings
It in order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Needed in attached drawing be briefly described, it should be apparent that, the accompanying drawings in the following description is only the utility model
Some embodiments, for those of ordinary skill in the art, without creative efforts, can also be according to this
A little attached drawings obtain other attached drawings.
Fig. 1 is the structure diagram according to the low-voltage circuit protection supervisory equipment of the utility model embodiment；
Fig. 2 is the functional block diagram according to the low-voltage circuit protection supervisory equipment of the utility model embodiment；
Fig. 3 is the circuit diagram according to the low-voltage circuit protection supervisory equipment of the utility model embodiment.
In figure：
1st, babinet；2nd, A plug-in units；3rd, B plug-in units；4th, processor；5th, human-computer interaction module；6th, supplemental functionality.
Specific embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
It clearly and completely describes, it is clear that the described embodiments are only a part of the embodiments of the utility model rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art's all other embodiments obtained all belong to
In the scope of the utility model protection.
Embodiment according to the present utility model provides a kind of low-voltage circuit protection supervisory equipment.
As shown in Figs. 1-3, the low-voltage circuit protection supervisory equipment according to the utility model embodiment, including babinet 1,
A plug-in units 2, B plug-in units 3, processor 4, human-computer interaction module 5 and supplemental functionality 6 are respectively equipped in the babinet 1, wherein；
The A plug-in units 2 include outputing circuit, open entry loop and electric power loop；
The B plug-in units 3 include ac voltage circuit, alternating current circuit, communication loop, analog output circuit and environment
Temperature-humidity monitoring circuit；
The human-computer interaction module 5 includes light-emitting diode display and man-machine interface management, and the man-machine interface management includes entree
Single, the output terminal of the main menu is connected with the input that the input terminal of operation information, the input terminal of event report, system are set
The input terminal at end, the input terminal of Protection parameters, the input terminal of device to test and other information, the output terminal of the operation information connect
The input terminal of the input terminal of fundamental wave value, the input terminal of measured value, charge value is connected to, the output terminal of the event report is connected with report
The input terminal of announcement display, the output terminal that the system is set and the input terminal of the systematic parameter, the input terminal of time adjustment, survey
It can the input terminal of verification, the outlet input terminal, the input terminal of serial port setting, the input terminal of simulation output, the zeros data that set
The input terminal of input terminal and contrast, the output terminal of the Protection parameters are connected with the input terminal of pressing plate setting and the input of definite value
End, described device test output terminal be connected with output the input terminal of transmission, open into inspection input terminal and alternating-current measurement it is defeated
Enter end, the output terminal of the other information is connected with the input terminal of version information and the input terminal of company information；
The supplemental functionality 6 includes buzzer and driving circuit.
By means of above-mentioned technical proposal, by device using the fast throughput of microprocessor, with reference to specific specified
Time that parameter and user adjust and threshold parameters to inlet wire/feeder line whether exception and fault category correctly judge and area
It manages in other places, it is ensured that the safe operation of system, and pass through a variety of shapes such as chinese liquid crystal display, sound, light instruction, signal output and communication
Formula informs user in time, which provides perfect control and protection using traditional linear quadratic control protection circuit is simplified
Measure can also be achieved the communication networking based on a variety of bus modes as intelligent terminal, realize decentralised control protection sum aggregate
Middle management, the application of controller shorten construction period, greatly improve design and production efficiency, while reduce user and show
Field debugging and maintenance workload, small product size is small, compact-sized, easy for installation, can in 1/4 modulus and any of the above drawout cubicle
Use is mounted directly, convenient for adapting to the demand under varying environment.
In addition, in one embodiment, back work power supply supports AC and DC power supply (AC220V, DC220V), wide scope
It inputs (85V~265V), can be applied to electricity and close frame-type circuit breaker or mold cased circuit breaker that electricity is jumped；DI is opened into support dry contact
Input, optional AC or DC powered；DO outputs is controlled to support AC load or DC load, at the same splitting or integrating lock control DO with
Trip protection DO is separated；Signal DO is for self-check of device or fault alarm output etc.；Measurement function is full electrical measurement, per mutually electricity
Flow virtual value, per phase voltage virtual value, line voltage virtual value, power（Active and reactive, apparent）, power factor, frequency, mutually not
Balance percentage, environment temperature, ambient humidity, active electrical degree, idle electric degree, earth fault leakage current, On-off signal state
Deng；Defencive function is comprehensive, including：Fast tripping protection, overcurrent protection, overload protection (acting in signal), unbalance protection, electric leakage
(zero sequence) protection etc.；The throwing, retreating of defencive function, Protection parameters setting etc. can be carried out by professional according to the actual parameter of circuit
Scene is adjusted, and power down is not lost；Various operating parameters (electric current, voltage, power) may be selected in 4~20mA analog outputs；It supports
MODBUS-RTU realizes data transmission and remote monitoring function；It can the input state of real-time query switching value, the fortune of current line
Row state；Eight failures and failure markers are can record, realizes fast failure positioning；Recordable breaker on/off switch number, protection
Between tripping times, current hours run, accumulated running time；Wide temperature OLED (self-luminous) liquid crystal display of fine definition, full Chinese
Menu is shown, user-friendly；Highly-integrated functions collect the multiple functions such as protection, measurement, monitoring, control, communication in one
Body；Major product uses modularized design, and main body, current mutual inductor special partial installation, small product size is small, compact-sized, installation
It is convenient, use can be mounted directly in various drawout cubicles；Well-designed and stringent electromagnetism has been carried out at shockproof, anti-interference aspect
Compatibility test, to ensure equipment safety operation and faulty action preventing；A tractor serves several purposes may replace ammeter, voltmeter, Current Mutual Inductance
Device, the time relay, leakage relay, transmitter, kilowatt-hour meter etc..
In addition, in one embodiment, operation button, signal lamp are equipped in human-computer interaction module 5.Operation button bag
It includes：Cancel/exiting/and return to previous menu/cure parameter/curing definite value；Cursor line down, long-press can quickly increase；Number
Value increases a step-length；Long-press can make cursor move on to next bit；Confirmation/enter menu/page turning；Combination button function (normal fortune
Under row interface)；" panel combined floodgate " function；" panel separating brake " function；Involution trip signal, signal lamp include：Operation is (green
Color)：Device powers on per second during normal operation flicker once；It communicates (green)：Flickered when serial communication is normal, it is no communication when lamp
It goes out；A distant place (green)：Device is arranged to light during " long-range " control mode；Divide position (green)：Breaker is in open position time point
It is bright；It alarms (red)：Device is lighted when sending out alarm signal, auto-returned when alarm signal disappears；It trips (red)：Device hair is jumped
It lights and keeps during lock order, it must hand resetting；It closes position (red)：Breaker is lighted in closing position.
In addition, in one embodiment, it is described to output A01 ~ A02 of the circuit including trip protection leading-out terminal, combined floodgate, divide
The A03 of lock output common port, the A04 for outlet of closing a floodgate, the A05 of separating brake outlet and A06 ~ A07 of signal output contact.And lock, point
Lock and signal output are normal opened contact.
In addition, in one embodiment, the open entry loop includes A08~A17 of DI intakes and opens into common port
A18, and the DI intakes are respectively connected to breaker open operation position, breaker closing position, close a floodgate input and separating brake input.Dress
It puts and AC220V or DC220V is supported to open into please noting that polarity when accessing DC220V (A18 common ports should connect negative supply).
In addition, in one embodiment, the electric power loop include being respectively connected to the A19 of installation's power source L/+, N/-~
A20.And international high frequency switch power can be used in power supply, modularized design, AC/DC universal, 85~265V wide scopes are defeated
Enter.
In addition, in one embodiment, the ac voltage circuit includes being respectively connected to Ua (U phases), Ub (V phases), Uc (W
Phase) and Un (neutral conductor) B01, B02, B03 and B04.Built-in voltage converter is high-precision, angular difference is small, low-power consumption, anti-dry
Immunity can high converter, can accurately measurement voltage signal.And voltage circuit supports 380V, 660V system voltage directly to connect
Enter.
In addition, in one embodiment, the Ia that the alternating current circuit includes being respectively connected to power pack CT is (yellow
Color), Ib (green), Ic (red) and In (black) B05, B06, B07 and B08 and be respectively connected to electric leakage (residue) electric current
The B09 and B10 of the I0 (blueness) and In (black) of converter LCT.The yellowish green colo(u)r streaks of CT and LCT are bonding line.Current transformation
The converter that device is high-precision, angular difference is small, low-power consumption, interference free performance are high, can accurately measure current signal.
In addition, in one embodiment, the communication loop includes the B11~B12 and B13 of two-way RS-485 serial line interfaces
~B14.Networking and telecommunication are carried out by this bus.
In addition, in one embodiment, the analog output circuit includes B15~B16 of simulation output terminal, and
B15 is just, B16 is negative.Electric current, voltage or power may be selected in output quantity.24V power modules built in the present apparatus, support it is active or
Passive two kinds of way of outputs, jumper connection is to the active way of output when dispatching from the factory.
In addition, in one embodiment, the ambient temperature and humidity monitoring circuit includes digital environment humidity sensor
B17, B18, B19 and B20 of interface.B17 is SCK (clock), connects purple line.B18 is VCC (power supply is just), connects blue line.B19
For GND (power supply is born), green line is connect.B20 is DATA (data), connects yellow line.Sensor can use sticking double faced adhesive tape in tested point.
In addition, in one embodiment, for above-mentioned processor 4, processor inputs for converting and handling exchange
Amount, measurement electric current, voltage simultaneously calculate active power, reactive power, power factor, frequency, voltage, phase angle equivalence.If protection
Amount reaches the working value of setting, then sends tripping (or alarm) order to exit relay.Processor is by 32 large-scale integrateds
Chip is served as, and integrates A/D conversions, quantity of state input, quantity of state output, ROM, RAM of large capacity so that the CPU modules
With extremely strong data processing and registering capacity, it can realize the troubleshooting scheme of various complexity and record substantial amounts of number of faults
According to.The program of C language establishment, can make program have very strong reliability, portability and maintainability.It is various related with CPU
Device concentrate on one block of plug-in unit, each input/output state amount is through Phototube Coupling.Analog-to-digital conversion uses 12 high-precisions, height
Stability, high speed switching device, exact working current reach 0.5V up to 0.04In, precise operation voltage, improve measurement accuracy
And speed.Each analog quantity is low-pass filtered, can effectively filter out higher hamonic wave, and to the attenuation of fundamental wave amount less than 0.1%, and it is each logical
The attenuation rate of road analog quantity and phase shift can reach good uniformity.
In addition, it in one embodiment, for above-mentioned supplemental functionality 6, when device sends alarm signal, opens
Dynamic advance notice sound equipment；When device sends trip signal, start accident signal.Predict gentle sound of the sound equipment for interval 1.0s, accident
Sound equipment is the short duration tone of interval 0.5s.Advance notice sound equipment eliminates automatically when alarm signal returns, and accident signal must carry out manually
Involution can eliminate.In addition device provides button sound function, after opening keypad tone, often sends an infrasonic sound by one-touch system
Sound.Keypad tone can be turned on and off in system parameter setting menu.
In addition, in one embodiment, for above-mentioned human-computer interaction module 5, fundamental wave value：Each analog quantity of real-time display
The fundamental wave virtual value and phase angle of passage；Measured value：The size of each measured value of real-time display；Charge value：Each electricity of real-time display
Size；Operating status：The information of real-time displaying device operation；Report display：Tripping the checking of switch fault report, active push is shown
Show；Pressing plate is set：Systematic parameter is set；Definite value：Change the setting valve of protection element；Systematic parameter：Systematic parameter is set；Time
Adjustment：The adjusting apparatus time；Survey can verify：Electric current, the calibration of voltage linear degree；Outlet is set：The design parameter of outlet is set；String
Mouth is set：The design parameter of serial communication is set；Simulation output：The adjustment of 4-20mA simulation output parameters；Zeros data：Electricity
Amount, the clearing of the time number of starts；Contrast：The contrast of display is set；Output transmission：Each output switching value controls manually
Output returns；It opens into inspection：Intake real-time display；Alternating-current measurement：The value and phase angle of each of ac are shown；Version information：
Display device model, program version information and program cyclic redundancy check；Company information：Display device production production man information.
In conclusion by means of the above-mentioned technical proposal of the utility model, the quick place of microprocessor is utilized by device
Whether reason ability, the time adjusted with reference to specific nominal parameter and user and threshold parameters are extremely and former to inlet wire/feeder line
Barrier classification correctly judged and be handled differently, it is ensured that the safe operation of system, and pass through chinese liquid crystal display, sound, light indicate,
The diversified forms such as signal output and communication inform user in time, which protects circuit using traditional linear quadratic control is simplified,
Perfect control and safeguard measure are provided, the communication networking based on a variety of bus modes is can also be achieved as intelligent terminal,
It realizes decentralised control protection and centralized management, the application of controller shortens construction period, greatly improve design and life
Efficiency is produced, while reduces user's field adjustable and maintenance workload, small product size is small, compact-sized, easy for installation, 1/4
Use can be mounted directly in modulus and any of the above drawout cubicle, convenient for adapting to the demand under varying environment.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modifications, equivalent replacements and improvements are made should be included in the utility model
Protection domain within.
Claims (7)
1. a kind of low-voltage circuit protection supervisory equipment, which is characterized in that including babinet (1), A is respectively equipped in the babinet (1)
Plug-in unit (2), B plug-in units (3), processor (4), human-computer interaction module (5) and supplemental functionality (6), wherein；
The A plug-in units (2) include outputing circuit, open entry loop and electric power loop；
The B plug-in units (3) include ac voltage circuit, alternating current circuit, communication loop, analog output circuit and environment temperature
Humidity detection circuit；
The human-computer interaction module (5) includes light-emitting diode display and man-machine interface management, and the man-machine interface management includes entree
Single, the output terminal of the main menu is connected with the input that the input terminal of operation information, the input terminal of event report, system are set
The input terminal at end, the input terminal of Protection parameters, the input terminal of device to test and other information, the output terminal of the operation information connect
The input terminal of the input terminal of fundamental wave value, the input terminal of measured value, charge value is connected to, the output terminal of the event report is connected with report
The input terminal of announcement display, the output terminal that the system is set and the input terminal of the systematic parameter, the input terminal of time adjustment, survey
It can the input terminal of verification, the outlet input terminal, the input terminal of serial port setting, the input terminal of simulation output, the zeros data that set
The input terminal of input terminal and contrast, the output terminal of the Protection parameters are connected with the input terminal of pressing plate setting and the input of definite value
End, described device test output terminal be connected with output the input terminal of transmission, open into inspection input terminal and alternating-current measurement it is defeated
Enter end, the output terminal of the other information is connected with the input terminal of version information and the input terminal of company information；
The supplemental functionality (6) includes buzzer and driving circuit.
2. a kind of low-voltage circuit protection supervisory equipment according to claim 1, which is characterized in that the circuit of outputing includes
A01~A02, combined floodgate, the A03 of separating brake output common port, A04, the separating brake of outlet of closing a floodgate of trip protection leading-out terminal export
A06~A07 of A05 and signal output contact.
3. a kind of low-voltage circuit protection supervisory equipment according to claim 1, which is characterized in that the open entry loop includes
A08~A17 of DI intakes and the A18 into common port is opened, and the DI intakes are respectively connected to breaker open operation position, open circuit
Device closing position, close a floodgate input and separating brake input.
4. a kind of low-voltage circuit protection supervisory equipment according to claim 1, which is characterized in that the electric power loop includes
It is respectively connected to A19~A20 of installation's power source L/+, N/-.
5. a kind of low-voltage circuit protection supervisory equipment according to claim 1, which is characterized in that the communication loop includes
B11~the B12 and B13~B14 of two-way RS-485 serial line interfaces.
6. a kind of low-voltage circuit protection supervisory equipment according to claim 1, which is characterized in that the analog output returns
Road includes B15~B16 of simulation output terminal, and B15 is just, B16 is negative.
A kind of 7. low-voltage circuit protection supervisory equipment according to claim 1, which is characterized in that the ambient temperature and humidity prison
Survey time road includes B17, B18, B19 and B20 of digital environment humidity sensor interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721483779.2U CN207398825U (en) | 2017-11-09 | 2017-11-09 | A kind of low-voltage circuit protection supervisory equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721483779.2U CN207398825U (en) | 2017-11-09 | 2017-11-09 | A kind of low-voltage circuit protection supervisory equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207398825U true CN207398825U (en) | 2018-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721483779.2U Expired - Fee Related CN207398825U (en) | 2017-11-09 | 2017-11-09 | A kind of low-voltage circuit protection supervisory equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114578163A (en) * | 2022-03-04 | 2022-06-03 | 台州安耐杰电力设备有限公司 | Low-voltage loop measurement and control terminal |
-
2017
- 2017-11-09 CN CN201721483779.2U patent/CN207398825U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114578163A (en) * | 2022-03-04 | 2022-06-03 | 台州安耐杰电力设备有限公司 | Low-voltage loop measurement and control terminal |
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