CN108807101A - The breaker of tracking load variation automatic adjusting rated value - Google Patents
The breaker of tracking load variation automatic adjusting rated value Download PDFInfo
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- CN108807101A CN108807101A CN201810631731.4A CN201810631731A CN108807101A CN 108807101 A CN108807101 A CN 108807101A CN 201810631731 A CN201810631731 A CN 201810631731A CN 108807101 A CN108807101 A CN 108807101A
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- 230000007246 mechanism Effects 0.000 claims abstract description 69
- 238000013500 data storage Methods 0.000 claims abstract description 29
- 230000008054 signal transmission Effects 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 8
- 230000008859 change Effects 0.000 claims description 7
- 230000003750 conditioning effect Effects 0.000 claims description 7
- 230000005055 memory storage Effects 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 230000007704 transition Effects 0.000 claims description 6
- 230000002463 transducing effect Effects 0.000 claims description 5
- 230000004048 modification Effects 0.000 claims description 4
- 238000012986 modification Methods 0.000 claims description 4
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 230000009471 action Effects 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 3
- 230000006870 function Effects 0.000 description 5
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- 230000005611 electricity Effects 0.000 description 2
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/74—Means for adjusting the conditions under which the device will function to provide protection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/021—Details concerning the disconnection itself, e.g. at a particular instant, particularly at zero value of current, disconnection in a predetermined order
- H02H3/023—Details concerning the disconnection itself, e.g. at a particular instant, particularly at zero value of current, disconnection in a predetermined order by short-circuiting
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Abstract
The present invention is the breaker of tracking load variation automatic adjusting rated value, including electronic tripping mechanism, brake mechanism and electronic control system are overlapped, wherein electronic control system includes MCU, keyboard, display, the first A/D converter, the second A/D converter, current sample sensor, voltage sample sensor, program storage, strategy controller and data storage.Advantages of the present invention：Breaker rated value is automatically performed by electronic control system, and the rated current Ir of breaker is made to track load variation always and be converted into optimum value in due course.Sensitive, safe and reliable protection load equipment and the safety with electric line, prevent the electrical fire that a variety of causes may cause.
Description
Technical field
The present invention relates to the breakers that tracking loads variation automatic adjusting rated value.
Background technology
Breaker occupies extremely important position in power transmission and distribution, and occupation rate of market is high, breaker mainly have switch and
Two big functions are protected, defencive function, which is that breaker is very important, uses function.The defencive function of breaker is to be based on rated value
It realizes, load current I n are judged compared with rated value I r by comparison result, are then chosen whether to enter and are overloaded, is short
Road guard mode.
The size specification of customized good rated value when the breaker of the prior art generally dispatches from the factory, user are selected by current specification
With its current specification size cannot be customized.The rated current of some breakers of the prior art can also be done some adjustment by user,
But it belongs to and disposably adjusts, be unable to adjust automatically or change in operation, for user when selecting breaker, basic principle is only
The rated value I r of breaker can be selected by maximum load current I n as expected, however be calculated according to breaker safe load current public
Formula, if load current I n less than rated value I r 81% hereinafter, the overload protection of breaker will be out of control, if load current
I n are less than rated value I r 67% hereinafter, breaker will lose short-circuit protection performance.It is specified due to prior art breaker
Electric current cannot change according to load and be changed in operation, and when user load being caused to mitigate, breaker will lose and be effectively protected
Effect can cause great security risk, or even cause the safety accidents such as fire.
Some manufacturers devise some novel intelligence using modern electronic technology and computer technology exploitation in recent years
Change breaker, as the M-PACTJnsCn air-breaks of general electronic corporation GE companies, Siemens Company 3WT omnipotent breakers,
The Emax air-breaks of ABB AB, EasyPactNS breakers of Schneider company etc., these intelligent breakers are generally interior
Wiring board is set, because small, internal temperature is high, stability is very poor, and there is no important breakthroughs to change for basic principle and function
Become.
Invention content
Proposed by the present invention is the breaker of tracking load variation automatic adjusting rated value, and purpose is intended to overcome existing skill
Art above shortcomings, realize rated value tracking load variation and change automatically, can safely, effectively protect load equipment and
Use electric line.
Technical solution of the invention：The breaker of tracking load variation automatic adjusting rated value, feature includes electricity
Dynamic tripping mechanism overlaps brake mechanism and electronic control system, and wherein electronic control system includes MCU, keyboard, display, first
A/D converter, the second A/D converter, current sample sensor, voltage sample sensor, program storage, strategy controller and
Data storage, the signal input part of electronic tripping mechanism and the signal input part for overlapping brake mechanism are separately connected a signals of MCU
Output end and b signal output ends, a signals input/output terminal and b signal input/output terminals of MCU are separately connected the signal of keyboard
The signal input/output end at input/output end and display, a signal input parts of MCU connect the signal of the first A/D converter
Output end, the signal output end of the signal input part connection current sample sensor of the first A/D converter, the b signals input of MCU
The signal output end of the second A/D converter of end connection, the signal input part connection voltage sample sensor of the second A/D converter
Signal output end, the signal input/output end of the c signal input/output terminal linker memory of MCU, the d signals of MCU are defeated
Enter/signal input/output the end of output end connection strategy controller, the e signal input/output terminals of MCU connect data storage
Signal input/output end, MCU is additionally provided with network connection PORT COM and field-bus interface；
The electronic tripping mechanism is used to receive the control signal of MCU, completes the dropout protection act of breaker；It is described
Coincidence brake mechanism be used to receive the control signal of MCU, complete the reclosing action of breaker；The keyboard for set or
Change current rating I r of breaker, supply voltage, load voltage, load current I n and load current I n phase and
The parameter and overload of power factor, short circuit, ground connection, electric leakage Protection parameters and be transferred to MCU；The display is for showing
Parameters variation and alarm signal；First A/D converter and the second A/D converter is respectively used to sense current sample
The analog-signal transitions that device, voltage sample sensor acquire are digital data transmission to MCU；The strategy controller is for auxiliary
MCU operations and processing the first A/D converter of reception and the second A/D converter is helped to be transferred to the digital signal of MCU and be stored in number
According to the parameter in memory, then will treated that data are stored in by MCU in data storage, and by modified open circuit
Current rating I r of device, electronic tripping mechanism and the control signal transmission of brake mechanism is overlapped to MCU；The data storage
Device is used to receive and store supply voltage, load voltage, load current I n and the load for the breaker that MCU is transferred to by keyboard
The phase of electric current I n and the parameter and overload of power factor, short circuit, ground connection, electric leakage Protection parameters；The network connection is logical
Interrogate parameter of the port for remote terminal monitoring breaker and setting breaker.First A/D converter and the 2nd A/D turns
The signal input part of parallel operation respectively connects the letter of current sample sensor and voltage sample sensor by a signal conditioning circuit
Number output end, signal conditioning circuit are used to complete the pretreatment of transducing signal.
Preferably, the program storage include initialization unit, signal acquisition process unit, memory storage unit,
Run control unit, update display unit, alarm and drive control unit, keyboard to set up unit, overload protection unit, short circuit guarantor
Protect unit, ground protection unit, residual current protective unit；
The initialization unit is used to initializing signal being transferred to MCU, carries out sensor parameters Initialize installation；Institute
The signal acquisition process unit stated is for receiving, handling the digital signal that A/D converter is transferred to MCU；The memory storage
Unit is used for will be in keyboard to set up or the storage to data storage of the circuit breaker parameters of modification；The operation control unit is used for
Control the operation of MCU, strategy controller and data storage；The update display unit is used for the parameter of breaker is real-time
It updates and is shown on display；The alarm and drive control unit is used for electronic tripping mechanism and overlaps brake mechanism
Control signal transmission generates alarm signal to MCU；The keyboard to set up unit is used to receive the input signal of keyboard；Institute
The overload protection unit stated is used for after sensor receives overload signal and passes to MCU, by electronic tripping mechanism and coincidence
The control signal transmission of brake mechanism is to MCU；The short-circuit protection unit is for receiving short-circuit signal in sensor and transmitting
After MCU, by electronic tripping mechanism and the control signal transmission for overlapping brake mechanism to MCU；The ground protection unit is used for
After sensor receives ground connection abnormal signal and passes to MCU, by the control signal of electronic tripping mechanism and coincidence brake mechanism
It is transferred to MCU；The overload protection unit is used for after sensor receives electric leakage signal and passes to MCU, will be electronic de-
The control signal transmission of buckle mechanism and coincidence brake mechanism is to MCU.
The control method of the breaker of tracking load variation automatic adjusting rated value, includes the following steps：
S1：Keyboard to set up or current rating I r, supply voltage, load voltage, the load current I n for changing breaker
With the parameter and overload of the phase of load current I n and power factor, short circuit, ground connection, electric leakage Protection parameters and be transferred to
MCU, MCU are transferred to data storage；
S2：Current sample sensor and voltage sample sensor acquire circuit breaker load current signal, supply voltage in real time
Signal and load voltage signal are simultaneously transferred to the first A/D converter and the second A/D converter, the first A/D converter and the 2nd A/D
The analog-signal transitions of transducer sensor acquisition are digital data transmission to MCU；
S3：Strategy controller is transferred to the control signal of MCU according to program storage, and cooperation MCU operations and processing MCU connect
The digital signal received and the parameter being stored in data storage, are transferred to MCU by current rating I r, judge whether
It executes pre-alarm and dropout is protected, then data are stored in data storage by treated, if executing pre-alarm and taking off
Button protection then by the control signal transmission of electronic tripping mechanism and coincidence brake mechanism to MCU, and carries out S4, if do not executed
Row pre-alarm and protection of threading off, then processing terminate；
S4：MCU control signal transmissions complete the dropout protection act of breaker to electronic tripping mechanism and coincidence brake mechanism
It is acted with reclosing.
Preferably, the S3 judges according to the increase of load current I n, the phase and power number of load current I n
Normal load increases and overload fault, and breaker is adjusted or changed in the actual loading after being reduced according to load increase or load
Current rating I r.
Advantages of the present invention：The rated value of breaker generally need not manually be set, and be automatically performed by electronic control system,
The rated current I r of breaker are made to track load variation always and be converted into optimum value in due course.Specifically, this breaker has people
Work intelligence, electronic control system by its A/D conversion acquisition current sensing signal, supply voltage and load voltage signal and its
His transducing signal, and by its operation, storage and processing, electronic tripping mechanism is controlled, realize tracking load variation automatic adjusting volume
Definite value, to achieve the purpose that safe and reliable protection electrical equipment and electricity consumption line security, A/D conversion and each sensor it
Between be equipped with signal conditioning circuit, to complete the pretreatment of transducing signal.The rated value I r of breaker are removed to be stored by automatic Memory
Outside, it can also be set and corrected by keyboard according to actual loading by user, load current is tracked to obtain rated value I r
The variation of I n and the best protection characteristic changed, sensitive, safe and reliable protection load equipment and the safety with electric line, Du
The electrical fire that exhausted a variety of causes may cause.
Description of the drawings
Fig. 1 is the structure diagram of the breaker of present invention tracking load variation automatic adjusting rated value.
Specific implementation mode
With reference to embodiment and specific implementation mode, the present invention is described in further detail.
As shown in Figure 1, tracking load variation automatic adjusting rated value breaker, structure include electronic tripping mechanism,
Overlap brake mechanism and electronic control system, wherein electronic control system includes MCU, keyboard, display, the first A/D converter, the
Two A/D converters, current sample sensor, voltage sample sensor, program storage, strategy controller and data storage,
The signal input part of electronic tripping mechanism and the signal input part for overlapping brake mechanism are separately connected a signal output ends and b letters of MCU
Number output end, a signals input/output terminal and b signal input/output terminals of MCU are separately connected the signal input/output end of keyboard
With the signal input/output end of display, a signal input parts of MCU connect the signal output end of the first A/D converter, and first
The signal output end of the signal input part connection current sample sensor of A/D converter, the b signal input parts connection second of MCU
The signal output end of A/D converter, the signal output of the signal input part connection voltage sample sensor of the second A/D converter
End, the signal input/output end of the c signal input/output terminal linker memory of MCU, the d signal input/output terminals of MCU
The signal at the signal input/output end of connection strategy controller, the e signal input/output terminals connection data storage of MCU is defeated
Go out/input terminal, MCU is additionally provided with network connection PORT COM and field-bus interface；
The electronic tripping mechanism is used to receive the control signal of MCU, completes the dropout protection act of breaker；
The coincidence brake mechanism is used to receive the control signal of MCU, completes the reclosing action of breaker；
The keyboard is used to setting or changing current rating I r of breaker, supply voltage, load voltage, load
The parameter and overload of the phase and power factor of electric current I n and load current I n, short circuit, ground connection, the Protection parameters of electric leakage and biography
It is defeated to arrive MCU；
The display changes for display parameters and alarm signal；
First A/D converter and the second A/D converter is respectively used to pass current sample sensor, voltage sample
The analog-signal transitions of sensor acquisition are digital data transmission to MCU；
The strategy controller is for assisting MCU operations and processing to receive the first A/D converter and the second A/D converter
It is transferred to the digital signal of MCU and the parameter being stored in data storage, then data are stored in by MCU by treated
In data storage, and by current rating I r of modified breaker, electronic tripping mechanism and overlap brake mechanism control
Signal transmission is to MCU；
The data storage be used for receive and store by keyboard be transferred to MCU breaker supply voltage, load
Voltage, the parameter and overload of the phase of load current I n and load current I n and power factor, short circuit, ground connection, electric leakage guarantor
Protect parameter；
Parameter of the network connection PORT COM for remote terminal monitoring breaker and setting breaker.
The signal input part of first A/D converter and the second A/D converter respectively passes through a signal conditioning circuit
The signal output end of current sample sensor and voltage sample sensor is connected, signal conditioning circuit is for completing transducing signal
Pretreatment.
The program storage includes initialization unit, signal acquisition process unit, memory storage unit, operation control
Unit, update display unit, alarm and drive control unit, keyboard to set up unit, overload protection unit, short-circuit protection unit,
Ground protection unit, residual current protective unit；
The initialization unit is used to initializing signal being transferred to MCU, carries out sensor parameters Initialize installation；
The signal acquisition process unit is for receiving, handling the digital signal that A/D converter is transferred to MCU；
The memory storage unit is used for will be in keyboard to set up or the storage to data storage of the circuit breaker parameters of modification；
The operation control unit is used to control the operation of MCU, strategy controller and data storage；
The update display unit is used for the parameter real-time update of breaker and is shown to display；
The alarm and drive control unit is used for electronic tripping mechanism and overlaps the control signal transmission of brake mechanism
To MCU, and generate alarm signal；
The keyboard to set up unit is used to receive the input signal of keyboard；
The overload protection unit is used for after sensor receives overload signal and passes to MCU, by electronic dropout
Mechanism and the control signal transmission of coincidence brake mechanism are to MCU；
The short-circuit protection unit is used for after sensor receives short-circuit signal and passes to MCU, by electronic dropout
Mechanism and the control signal transmission of coincidence brake mechanism are to MCU；
The ground protection unit is used for after sensor receives ground connection abnormal signal and passes to MCU, will be electronic
The control signal transmission of tripping mechanism and coincidence brake mechanism is to MCU；
The overload protection unit is used for after sensor receives electric leakage signal and passes to MCU, by electronic dropout
Mechanism and the control signal transmission of coincidence brake mechanism are to MCU.
A kind of control method of the breaker of tracking load variation automatic adjusting rated value, includes the following steps：
S1：Keyboard to set up or current rating I r, supply voltage, load voltage, the load current I n for changing breaker
With the parameter and overload of the phase of load current I n and power factor, short circuit, ground connection, electric leakage Protection parameters and be transferred to
MCU, MCU are transferred to data storage；
S2：Current sample sensor and voltage sample sensor acquire circuit breaker load current signal, supply voltage in real time
Signal and load voltage signal are simultaneously transferred to the first A/D converter and the second A/D converter, the first A/D converter and the 2nd A/D
The analog-signal transitions of transducer sensor acquisition are digital data transmission to MCU；
S3：Strategy controller is transferred to the control signal of MCU according to program storage, and cooperation MCU operations and processing MCU connect
The digital signal received and the parameter being stored in data storage, are transferred to MCU by current rating I r, judge whether
It executes pre-alarm and dropout is protected, then data are stored in data storage by treated, if executing pre-alarm and taking off
Button protection then by the control signal transmission of electronic tripping mechanism and coincidence brake mechanism to MCU, and carries out S4, if do not executed
Row pre-alarm and protection of threading off, then processing terminate；
S4：MCU control signal transmissions complete the dropout protection act of breaker to electronic tripping mechanism and coincidence brake mechanism
It is acted with reclosing.
The S3 judges normal negative according to the increase of load current I n, the phase and power number of load current I n
Increase and overload fault are carried, increases or load the current rating that breaker was adjusted or changed in the actual loading after reducing according to load
Value I r.To achieve the purpose that convert different current rating I r according to different loads, realize according to load variation certainly
The dynamic effect for being converted into best rated value, makes the current rating I r of breaker match always with power load, obtains best
The track protection effect of current rating I r makes the current rating I r of breaker in addition to being stored by automatic Memory, also may be used
To be set and be corrected by keyboard according to actual loading by user, to obtain current rating I r tracking load current I n
Variation and the best protection characteristic that changes, sensitive, safe and reliable protection load equipment and the safety with electric line, prevent
The electrical fire that a variety of causes may cause.
It is state before stop when this breaker can also be arranged to power on or reset, when can also be arranged to power on or reset
Into setting state.
What has been described above is only a preferred embodiment of the present invention, it is noted that for those of ordinary skill in the art
For, without departing from the concept of the premise of the invention, various modifications and improvements can be made, these belong to the present invention
Protection domain.
Claims (4)
1. tracking load variation automatic adjusting rated value breaker, feature include electronic tripping mechanism, overlap brake mechanism and
Electronic control system, wherein electronic control system include MCU, keyboard, display, the first A/D converter, the second A/D converter,
Current sample sensor, voltage sample sensor, program storage, strategy controller and data storage, electronic tripping mechanism
Signal input part and overlap the signal input part of brake mechanism and be separately connected a signal output ends and b signal output ends of MCU, MCU
A signals input/output terminal and b signal input/output terminals be separately connected signal input/output end and the letter of display of keyboard
Number input/output end, a signal input parts of MCU connect the signal output end of the first A/D converter, the letter of the first A/D converter
The signal output end of number input terminal connection current sample sensor, the b signal input parts of MCU connect the letter of the second A/D converter
Number output end, the signal output end of the signal input part connection voltage sample sensor of the second A/D converter, the c signal of MCU are defeated
Enter/signal input/output the end of output end linker memory, the d signal input/output terminal connection strategy controllers of MCU
Signal input/output end, MCU e signal input/output terminals connection data storage signal input/output end, MCU is also
Equipped with network connection PORT COM and field-bus interface；
The electronic tripping mechanism is used to receive the control signal of MCU, completes the dropout protection act of breaker；
The coincidence brake mechanism is used to receive the control signal of MCU, completes the reclosing action of breaker；
The keyboard is used to set or change current rating Ir, supply voltage, load voltage, the load current In of breaker
With the phase of load current In and the parameter of power factor and overload, short circuit, ground connection, electric leakage Protection parameters and be transferred to MCU；
The display changes for display parameters and alarm signal；
First A/D converter and the second A/D converter is respectively used to current sample sensor, voltage sample sensor
The analog-signal transitions of acquisition are digital data transmission to MCU；
The strategy controller is for assisting MCU operations and processing to receive the first A/D converter and the transmission of the second A/D converter
Digital signal to MCU and the parameter being stored in data storage, then by treated, data are stored in data by MCU
In memory, and by the current rating Ir of modified breaker, electronic tripping mechanism and overlap brake mechanism control signal
It is transferred to MCU；
The data storage be used to receive and store by keyboard be transferred to the supply voltage of breaker of MCU, load voltage,
The parameter and overload of the phase and power factor of load current In and load current In, short circuit, ground connection, electric leakage Protection parameters；
Parameter of the network connection PORT COM for remote terminal monitoring breaker and setting breaker.
The signal input part of first A/D converter and the second A/D converter is respectively connected by a signal conditioning circuit
The signal output end of current sample sensor and voltage sample sensor, signal conditioning circuit are used to complete the pre- place of transducing signal
Reason.
2. the breaker of tracking load variation automatic adjusting rated value as described in claim 1, it is characterized in that the program
Memory include initialization unit, signal acquisition process unit, memory storage unit, operation control unit, update display unit,
Alarm and drive control unit, keyboard to set up unit, overload protection unit, short-circuit protection unit, ground protection unit, electric leakage guarantor
Protect unit；
The initialization unit is used to initializing signal being transferred to MCU, carries out sensor parameters Initialize installation；
The signal acquisition process unit is for receiving, handling the digital signal that A/D converter is transferred to MCU；
The memory storage unit is used for will be in keyboard to set up or the storage to data storage of the circuit breaker parameters of modification；
The operation control unit is used to control the operation of MCU, strategy controller and data storage；
The update display unit is used for the parameter real-time update of breaker and is shown to display；
The alarm and drive control unit is used to give the control signal transmission of electronic tripping mechanism and coincidence brake mechanism
MCU, and generate alarm signal；
The keyboard to set up unit is used to receive the input signal of keyboard；
The overload protection unit is used for after sensor receives overload signal and passes to MCU, by electronic tripping mechanism
Control signal transmission with coincidence brake mechanism is to MCU；
The short-circuit protection unit is used for after sensor receives short-circuit signal and passes to MCU, by electronic tripping mechanism
Control signal transmission with coincidence brake mechanism is to MCU；
The ground protection unit is used for after sensor receives ground connection abnormal signal and passes to MCU, by electronic dropout
Mechanism and the control signal transmission of coincidence brake mechanism are to MCU；
The overload protection unit is used for after sensor receives electric leakage signal and passes to MCU, by electronic tripping mechanism
Control signal transmission with coincidence brake mechanism is to MCU.
3. a kind of control method of the breaker of tracking load variation automatic adjusting rated value as claimed in claim 1 or 2,
It is characterized in including the following steps：
S1：Keyboard to set up or current rating Ir, supply voltage, load voltage, load current In and the load for changing breaker
The phase of electric current In and the parameter of power factor and overload, short circuit, ground connection, electric leakage Protection parameters and be transferred to MCU, MCU is passed
It is defeated to arrive data storage；
S2：Current sample sensor and voltage sample sensor acquire circuit breaker load current signal, power supply voltage signal in real time
With load voltage signal and be transferred to the first A/D converter and the second A/D converter, the first A/D converter and the 2nd A/D conversions
The analog-signal transitions of device sensor acquisition are digital data transmission to MCU；
S3：Strategy controller is transferred to the control signal of MCU according to program storage, and cooperation MCU operations and processing MCU are received
Digital signal and the parameter that is stored in data storage, current rating Ir is transferred to MCU, judges whether to execute pre-
Alarm and protection of threading off, then by treated, data are stored in data storage, are protected if executing pre-alarm and threading off,
Then by the control signal transmission of electronic tripping mechanism and coincidence brake mechanism to MCU, and S4 is carried out, if not executing execution pre-alarm
It is protected with threading off, then processing terminates；
S4：MCU control signal transmissions are to electronic tripping mechanism and overlap the dropout protection act and again that brake mechanism completes breaker
Feed motion.
4. the control method of the breaker of tracking load variation automatic adjusting rated value as claimed in claim 3, it is characterized in that
The S3 judges normal load increase and mistake according to the increase of load current In, the phase of load current In and power number
Failure is carried, increases or load the current rating Ir that breaker was adjusted or changed in the actual loading after reducing according to load.
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| CN201810631731.4A CN108807101A (en) | 2018-06-19 | 2018-06-19 | The breaker of tracking load variation automatic adjusting rated value |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110086145A (en) * | 2019-04-26 | 2019-08-02 | 武汉汉镇既济电力设备有限公司 | A kind of breaker |
| CN111404271A (en) * | 2020-04-22 | 2020-07-10 | 北京航天常兴科技发展股份有限公司 | Intelligent air switch, matching cable thereof and low-voltage power distribution system comprising same |
| CN111465141A (en) * | 2020-04-09 | 2020-07-28 | 深圳市时誉高精科技有限公司 | Alternating-current multi-path mutual-control dimmer |
| CN112803586A (en) * | 2020-12-27 | 2021-05-14 | 常熟开关制造有限公司(原常熟开关厂） | Automatic setting method and device for rated parameters of circuit breaker and circuit breaker |
| CN113922504A (en) * | 2021-10-13 | 2022-01-11 | 深圳市永旭电气技术有限公司 | Method, system, equipment and storage medium for online intelligent monitoring and protection of alternating current load |
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| CN209000856U (en) * | 2018-06-19 | 2019-06-18 | 李秀才 | The breaker of tracking load variation automatic adjusting rated value |
Cited By (5)
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| CN110086145A (en) * | 2019-04-26 | 2019-08-02 | 武汉汉镇既济电力设备有限公司 | A kind of breaker |
| CN111465141A (en) * | 2020-04-09 | 2020-07-28 | 深圳市时誉高精科技有限公司 | Alternating-current multi-path mutual-control dimmer |
| CN111404271A (en) * | 2020-04-22 | 2020-07-10 | 北京航天常兴科技发展股份有限公司 | Intelligent air switch, matching cable thereof and low-voltage power distribution system comprising same |
| CN112803586A (en) * | 2020-12-27 | 2021-05-14 | 常熟开关制造有限公司(原常熟开关厂） | Automatic setting method and device for rated parameters of circuit breaker and circuit breaker |
| CN113922504A (en) * | 2021-10-13 | 2022-01-11 | 深圳市永旭电气技术有限公司 | Method, system, equipment and storage medium for online intelligent monitoring and protection of alternating current load |
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