CN102332702A - Intelligent real-time on-line displaying and controlling leakage protector and control method thereof - Google Patents

Intelligent real-time on-line displaying and controlling leakage protector and control method thereof Download PDF

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CN102332702A
CN102332702A CN201110272657A CN201110272657A CN102332702A CN 102332702 A CN102332702 A CN 102332702A CN 201110272657 A CN201110272657 A CN 201110272657A CN 201110272657 A CN201110272657 A CN 201110272657A CN 102332702 A CN102332702 A CN 102332702A
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leakage current
controller
dropout
pattern
real
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CN102332702B (en
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樊嵩
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樊嵩
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Abstract

The invention relates to an intelligent real-time on-line displaying and controlling leakage protector which comprises a control panel, wherein a wire inlet interface and a wire outlet interface are arranged at the end part of the control panel; a zero sequence transducer, a shunt releaser, an operating mechanism and a controller are arranged in the control panel; a leakage current display screen is arranged on the control panel; a tripping mode and a tripping mode selecting unit are arranged in the controller; the tripping mode comprises a forcing non-tripping mode, a delayed tripping mode and a normal tripping mode; the tripping mode selecting unit is used for selecting the tripping mode according to the size of a leakage current detected by the zero sequence transducer and switching among the modes according to the change of the detected leakage current. The invention provides an intelligent real-time on-line displaying and controlling leakage protector which is used for solving the technical problems of a breaker in the prior art that an instantly increased leakage current is subjected to tripping, service life of equipment is influenced, working efficiency is reduced and treatment cannot be performed according to specific working conditions.

Description

A kind of real-time online shows control electric leakage intellective protector and control method thereof
Technical field
The present invention relates to a kind of broken circuit protecting equipment, specifically a kind of real-time online shows control electric leakage intellective protector.
Background technology
Broken circuit protecting equipment is meant to close and closes, carries and cut-off the electric current under the normal loop condition, and can close the switching device that closes, in official hour, carries and cut-off the electric current under the unusual loop condition (comprising short circuit condition).In common circuit, generally all there is leakage current, there be not fault to apply under the voltage condition; Between the metal parts of electric middle mutually insulated; Or between charged part and the ground connection part, be called leakage current through its surrounding medium or the formed electric current of insulating surface, also be called leakage current.Leakage current is excessive, has not only reduced the efficient of electric energy, also can cause danger to external environment condition, causes the generation of electric shock accidents easily, and therefore the monitoring to leakage current is very necessary.RCCB is meant the switch of ability auto-action when leakage current surpasses predetermined value in the circuit, and it can detect the leakage current in the circuit, and moves according to the size of leakage current, thereby guarantees the safety of whole circuit.
As disclosing a kind of intelligent breaker among the Chinese patent document CN201117610Y; Comprise CPU CPU and connected ZCT, shunt release, motor reclosing, reclosing judging unit; Also comprise current transformer, communication unit, display unit, memory cell, clock unit, key-press input unit, each cell arrangement is connected with respective pins on the CPU CPU.In this technical scheme, said circuit breaker can be to monitoring in real time such as line load operational factor such as voltage, electric current, leakage current, storage, analyze, show.Under some operational environment, instantaneous increase, situation about recovering automatically again afterwards can frequently take place in the leakage current in the circuit; At this moment; If the time that leakage current increases is very short, can not impact even circuit breaker does not break off also the loop, if but the time that leakage current increases longer; Can impact to the voltage in the loop, then need cut-off breaker.A kind of adjustable intelligent control device of RCCB is disclosed in Chinese patent document CN201877813U; Comprise signal filtering amplifying circuit, single-chip microcomputer, dropout control circuit, toggle switch circuit; The input of signal filtering amplifying circuit is connected with the zero sequence current mutual inductor of RCCB; The output of dropout control circuit is connected with the release of RCCB; The toggle switch circuit is connected with the parameter modification signal end of single-chip microcomputer, and the alarm signal output ends of single-chip microcomputer is connected with the warning device of RCCB.Can accurately set delay time through single-chip microcomputer in this technical scheme; Can revise the relevant parameter that is stored in the control program in the single-chip microcomputer easily through the toggle switch circuit and regulate delay time and electric leakage signal fiducial value, but this RCCB being when judging whether to delay time, is that the mode through the time-delay acquired signal realizes; When the signal that collects during greater than pre-set threshold; To delay time and gather once more after a period of time,, then not thread off if the new signal of gathering is not more than predetermined threshold value; If the new signal of gathering still greater than predetermined threshold value, is then controlled release and is broken off.The problem that exists be when the leakage current signal only moment of acquired signal greater than threshold value other constantly less than said threshold value in; Said RCCB still can cutoff circuit; The switch motion that circuit breaker can only not stop to this situation; Not only influence the useful life of equipment, also reduced operating efficiency.
In addition, under some working condition, especially in process of production, even leakage current surpasses certain scope, not so line disconnection at once can cause economic loss even have an accident.A kind of RCCB with warning device is disclosed among the Chinese patent document CN2703349Y; Comprise ZCT circuitry for signal measurement, leakage current discriminating comparison circuit, trip gear; Said ZCT circuitry for signal measurement differentiates that with leakage current comparison circuit is connected, and leakage current differentiates that comparison circuit is connected with trip gear, and leakage current differentiates that the connection of comparison circuit rear end is provided with conversion selecting switch SW-SPDT; Conversion selecting switch SW-SPDT and warning device circuit, trip gear join; This RCCB can be selected to report to the police and thread off, and has realized the function of an alarm non-tripping, is suitable for situation about in the work engineering, can not cut off the power supply.
In above-mentioned document, provided circuit breaker delayed releasing and the technical scheme of forcing not thread off respectively, and to some equipment; Like the equipment in Medical Devices or the streamline production, in its course of work,, can not thread off in order to ensure safety; In its standby process,, then treat engine efficiency and need delayed releasing in order to improve it if line electrical leakage stream is unstable; When leakage current is stablized in the circuit, can normally thread off, therefore need in different dropout patterns, switch; Technique scheme can't combine to be implemented in the automatic switchover between various modes, can not satisfy the demand of this special operation condition, can't adapt to its real needs in commercial production.
Summary of the invention
For this reason; Technical problem to be solved by this invention is that leakage current that circuit breaker of the prior art increased moment carries out useful life of threading off, influence equipment, reduces operating efficiency, can not carry out the Treatment Technology problem according to special operation condition, shows the control intellective protector that leaks electricity thereby propose a kind of real-time online.
For solving the problems of the technologies described above; Real-time online of the present invention shows control electric leakage intellective protector; Comprise control panel; The end of said control panel is provided with the inlet wire interface and goes out line interface, and the set inside of said control panel has ZCT, shunt release, operating mechanism and controller, and the operating grip of said operating mechanism stretches out outside the control panel; Said control panel is provided with the leakage current display screen; Said controller is connected respectively with said ZCT, said shunt release and said leakage current display screen, is provided with dropout pattern and dropout mode selecting unit in the said controller, and said dropout pattern comprises pressure do not thread off pattern, delayed releasing pattern and the pattern of normally threading off; Said dropout mode selecting unit is selected above-mentioned dropout pattern according to the size of the detected leakage current of said ZCT, and switches between above-mentioned pattern according to the situation of change of detected leakage current.
Said control panel is provided with the leakage current threshold value and selects knob, and said leakage current threshold value selects knob to be connected with said controller, and the threshold value of leakage current is provided with.
Be connected with a warning device with said controller, when the value of said leakage current surpasses pre-set threshold, said alarm activation.
Said control panel is provided with dropout mode initialization mechanism, and said dropout mode initialization mechanism is connected with said controller, and said dropout mode initialization mechanism is provided with said dropout mode selecting unit.
Said control panel is provided with delayed releasing and sets up an organization; Said delayed releasing sets up an organization and is connected with said controller; Said delayed releasing sets up an organization and can be provided with the delay time in the said delayed releasing timing unit through controller, and said delay time is 0.3s-0.5s.
Said controller connects a memory, the leakage current value when said memory is used to store said shunt release action, and show through said leakage current display screen.
It is manual operation or leakage current is excessive threads off that said memory also is used to write down when said dropout action is carried out, and controller shows information recorded in the said memory through dropout movement memory display unit.
Said controller also connects a remote display unit, and said remote display unit and said leakage current display screen show synchronously.
A kind of real-time online shows the control method of control electric leakage intellective protector, may further comprise the steps:
(1) through the inlet wire interface with go out in the line interface line attachment; Leakage current in the said ZCT detection line; And give controller with detected leakage current message transmission; Be provided with the leakage current threshold value in the said controller in advance, said controller is presented at said leakage current value on the said leakage current display screen in real time;
(2) store the leakage current value range of equipment working state in the circuit, holding state in the said controller in advance; Said dropout mode selecting unit is according to the detected leakage current information of said ZCT that receives; Judge the residing operating state of equipment in the circuit; In the in running order leakage current scope of said leakage current information, the said controller of said dropout mode selecting unit is set to the said pressure module of not threading off, if leakage current surpasses preset leakage current threshold value; Said controller not sending controling instruction is given said shunt release, and said shunt release is failure to actuate;
(3) when the numerical value of the detected leakage current of said ZCT changes; Said dropout mode selecting unit is switched said dropout pattern according to the numerical value of said leakage current; When the numerical value of detected said leakage current is in the leakage current number range of holding state; The dropout pattern that said dropout mode selecting unit is switched said controller is said normal dropout module; If leakage current surpasses preset said leakage current threshold value, said controller is controlled said shunt release action open-circuit line;
(4) when the size of the detected leakage current of said ZCT produces momentary fluctuation; The dropout pattern that said dropout mode selecting unit is switched said controller is said delayed releasing pattern; Be provided with delay time in the said delayed releasing pattern; If the detected leakage current value of said ZCT surpasses after the duration of said leakage current threshold value reaches said delay time, said controller is controlled said shunt release and is threaded off.
In said process, when said shunt release moved, said controller was saved in the detected leakage current value of said ZCT this moment in the memory; When manual work is controlled said operating mechanism open-circuit line through spurring said operating grip; Said operating mechanism sends signal to said controller; Dropout action flag bit in the said controller memory is set to 1; When said controller was controlled said shunt release open-circuit line, the said dropout action flag bit in the said memory of said controller was set to 0, and said dropout movement memory display unit shows according to said dropout action flag bit.
Technique scheme of the present invention is compared prior art and is had the following advantages,
(1) real-time online of the present invention shows control electric leakage intellective protector and control method thereof; Comprise the inlet wire interface, go out line interface, ZCT, shunt release, operating mechanism and controller; Be provided with dropout pattern and dropout mode selecting unit in the said controller; Said dropout pattern comprises pressure do not thread off pattern, delayed releasing pattern and the pattern of normally threading off, and said dropout mode selecting unit is selected above-mentioned dropout pattern according to the size of the detected leakage current of said ZCT, and switches between above-mentioned pattern according to the situation of change of detected leakage current; Like this to the automatic selection of said dropout pattern; According to the different dropout pattern of equipment working state automatic switchover in the circuit, can adjust the dropout pattern automatically by real-time online, solved the technical problem that can not select the pattern of threading off in the prior art automatically; Applicable to the demand of required special operation condition, the misoperation when having avoided Artificial Control.
(2) real-time online of the present invention shows control electric leakage intellective protector; Said control panel is provided with the leakage current threshold value and selects knob; Said leakage current threshold value selects knob to be connected with said controller; Threshold value to leakage current is provided with, and the threshold value to said leakage current when convenient for users is like this regulated.
(3) real-time online of the present invention shows control electric leakage intellective protector, is connected with a warning device with said controller, when said leakage current value when surpassing pre-set threshold; Said alarm activation; Like this, especially surpass threshold value but under the situation of not threading off, warning device can be pointed out the staff at scene at leakage current; Notify them to handle, guarantee the safety of circuit.
(4) real-time online of the present invention shows control electric leakage intellective protector; Said control panel is provided with dropout mode initialization mechanism; Said dropout mode initialization mechanism is connected with said controller, can be provided with said dropout pattern, for the ease of Artificial Control; On said control panel, be provided with the set mechanism of artificial selection dropout pattern, can advance artificial the setting.
(5) real-time online of the present invention shows control electric leakage intellective protector; Said control panel is provided with delayed releasing and sets up an organization; Said delayed releasing sets up an organization and is connected with said controller, and said delayed releasing sets up an organization and can be provided with the delay time in the said delayed releasing timing unit through controller, and said delay time is 0.3s-0.5s; Guaranteed that circuit can frequently not thread off owing to the increase of instantaneous leakage current; Can its delay time be set manual work through this mechanism owing to leakage current is dangerous above the long circuit that causes of threshold time yet, simple and convenient and quick.
(6) real-time online of the present invention shows control electric leakage intellective protector; Said controller connects a memory; Leakage current value when said memory is used to store said shunt release action, and show through the leakage current display screen, the leakage current value when being convenient to manual observation and threading off its last time; For the field personnel adjusts said leakage current threshold value reference is provided, the situation when helping the Field Force to understand said circuit breaker tripping simultaneously.
(7) real-time online of the present invention shows control electric leakage intellective protector; It is manual operation or leakage current is excessive threads off that said memory also is used to write down when said dropout action is carried out; Controller shows information recorded in the said memory through said dropout movement memory display unit; Being convenient to the Field Force, to understand that circuit breaks off be that manual operation or dropout shunt opening break off, and then understand current operating mode.
(8) real-time online of the present invention shows control electric leakage intellective protector; Said controller also connects a remote display unit; Said remote display unit and said leakage current display screen show synchronously; Install in the rack when said real-time online shows control electric leakage intellective protector, can show the real time information of its leakage current, made things convenient for on-the-spot staff through remote display unit.
Description of drawings
For content of the present invention is more clearly understood, below according to a particular embodiment of the invention and combine accompanying drawing, the present invention is done further detailed explanation, wherein
Fig. 1 is the structured flowchart that real-time online of the present invention shows control electric leakage intellective protector;
Fig. 2 is the structured flowchart that real-time online of the present invention shows another embodiment of control electric leakage intellective protector;
Fig. 3 is the structural representation that real-time online of the present invention shows control electric leakage intellective protector;
Fig. 4 is the circuit diagram that real-time online of the present invention shows control electric leakage intellective protector.
Reference numeral is expressed as among the figure: the 1-control panel, and 2-inlet wire interface, 3-goes out line interface; 4-leakage current threshold value is selected knob, 5-operating grip, 6-leakage current display screen; 7-dropout mode initialization mechanism, the 8-warning device, the 9-delayed releasing sets up an organization; 11-dropout movement memory display unit, the 12-remote display unit.
Embodiment
Provide the concrete execution mode that real-time online of the present invention shows control electric leakage intellective protector below.
Embodiment 1:
As shown in Figure 1, a kind of real-time online shows control electric leakage intellective protector, comprises control panel 1, and said control panel 1 is used to be provided with the associative operation unit, and is user-friendly; The two ends of said control panel 1 are provided with inlet wire interface 2 and go out line interface 3; The set inside of said control panel 1 has ZCT, shunt release, operating mechanism and controller; Said ZCT is used for the leakage current of detection line; Said shunt release is used for the instruction open-circuit line of implementation controller; Operating mechanism is used for that hand control is opened or the closed-loop path, and the operating grip 5 of said operating mechanism stretches out outside the control panel 1, and the user is through breaking operating grip 5 close loop or cutoff circuit off with the fingers and thumb.Said control panel 1 is provided with leakage current display screen 6, is used for showing in real time the detected leakage current numerical value of said ZCT.Said controller is connected respectively with said ZCT, said shunt release and said leakage current display screen 6, selects the CPU control chip as controller at this, and it supplies power electric power source pair of module that can be through independent setting.Be provided with dropout pattern and dropout mode selecting unit through program in the said controller; Said dropout pattern comprises pressure do not thread off pattern, delayed releasing pattern and the pattern of normally threading off; Said dropout mode selecting unit is selected above-mentioned dropout pattern according to the size of the detected leakage current of said ZCT, and switches between above-mentioned pattern according to the situation of change of detected leakage current.
The control method that the described real-time online of present embodiment shows control electric leakage intellective protector is following:
(1) through inlet wire interface 2 with go out in line interface 3 line attachments; As insert in the three-phase AC line, the circuit that closes of the operating grip 5 through operating mechanism is after circuit is connected; Leakage current in the said ZCT detection line; And give controller with detected leakage current message transmission, and being provided with the leakage current threshold value in the said controller in advance, said controller is presented at said leakage current value on the said leakage current display screen 6 in real time;
(2) store the leakage current number range of equipment working state in the circuit, holding state in the said controller in advance; The number range here preestablishes according to working equipment concrete in its circuit and operational environment; Said dropout mode selecting unit is according to the detected leakage current information of said ZCT that receives; Judge the residing operating state of equipment in the circuit; In the in running order leakage current number range of detected said leakage current value, the said controller of said dropout mode selecting unit is set to force not thread off module, when leakage current surpasses preset said leakage current threshold value; Said controller not sending controling instruction is given said shunt release, and said shunt release is failure to actuate;
(3) when the numerical value of the detected leakage current of said ZCT changes; Said dropout mode selecting unit is switched said dropout pattern according to the numerical value of said leakage current; When the numerical value of detected said leakage current is in the leakage current number range of holding state; The dropout pattern that said dropout mode selecting unit is switched said controller is normal dropout module, and when leakage current surpassed preset leakage current threshold value, said controller was controlled said shunt release action open-circuit line;
(4) when the numerical value of the detected leakage current of said ZCT produces momentary fluctuation; The dropout pattern that said dropout mode selecting unit is switched said controller is the delayed releasing pattern; Be provided with delay time in the said delayed releasing pattern; After the duration that the detected leakage current value of said ZCT surpasses threshold value reached said delay time, said controller was controlled said shunt release and is threaded off.
In said process, said controller can switch said dropout pattern according to the variation of the detected leakage current numerical value of said ZCT, has realized the control and the demonstration of real-time online.
Embodiment 2:
Like Fig. 2, shown in Figure 3, on the basis of the foregoing description, further be provided with the leakage current threshold value on the said control panel and select knob 4, said leakage current threshold value selects knob 4 to be connected with said controller, and the threshold value of leakage current is provided with; Can also be connected with said controller a warning device 8 is set; When the value of said leakage current surpasses predefined said leakage current threshold value; Said warning device 8 starts, and is especially forcing can in time to understand field condition through warning device 8 Field Force under the pattern of not threading off; Make things convenient for it in time to handle, the generation of minimizing accident; Setting when the user uses for ease; Dropout mode initialization mechanism 7 can be set on said control panel 1; Said dropout mode initialization mechanism 7 is connected with said controller; Can be provided with said dropout pattern, like this, said dropout pattern can be provided with according to user's needs; The delay time of delayed releasing is set for the ease of the user; Said control panel 1 is provided with delayed releasing and sets up an organization 9; Said delayed releasing sets up an organization and 9 is connected with said controller; Said delayed releasing sets up an organization and 9 can be provided with the delay time in the said delayed releasing timing unit through controller, and said delay time is 0.3s-0.5s; Leakage current information when threading off for the ease of record; Be convenient to the staff leakage current threshold value is adjusted, said controller can connect a memory, the leakage current value when said memory is used to store said shunt release action; And show through leakage current display screen 6; In said process, when said shunt release moved, said controller was saved in the detected leakage current value of said ZCT this moment in the memory; Leakage current value when the Field Force can know the circuit disjunction through leakage current display screen 6 is convenient to setting and adjustment to said leakage current threshold value; Because showing operating grip 5 cutoff circuits that control electric leakage intellective protector can be through the hand control operating mechanism, said real-time online also can move open-circuit line by shunt release; It is manual operation or leakage current is excessive threads off that said memory can also be used to write down when said dropout action is carried out; Controller shows information recorded in the said memory through said dropout movement memory display unit 11; When manual work during through the said operating mechanism open-circuit line of the said operating grip of pulling 5 controls, said operating mechanism sends signal to said controller, and the dropout action flag bit in the said controller memory is set to 1; When said controller is controlled said shunt release open-circuit line; Dropout action flag bit in the said memory of said controller is set to 0, and said dropout movement memory display unit 11 shows that according to said dropout action flag bit said dropout movement memory display unit 11 is set to indicator light and shows; When indicator light is green; Expression shunt release action cutoff circuit, when indicator light is redness, expression operating mechanism cutoff circuit; Said controller is provided with the color of indicator light according to the value of the action flag bit of threading off, and is convenient to the staff and understands current information; In order to improve its Presentation Function; When being contained in the rack, the apparent control electric leakage of said real-time online intellective protector also can show its leakage current information in real time; Said controller also connects a remote display unit 12 through holding wire; Said remote display unit 12 shows synchronously that with said leakage current display screen 6 said remote display unit 12 can be arranged on the appropriate location as required, is convenient to the Field Force and observes.So just strengthened the function that said real-time online shows control electric leakage intellective protector, made its scope of application more extensive, better effects if.Provided the circuit diagram that real-time online of the present invention shows control electric leakage intellective protector like Fig. 4.
Obviously, the foregoing description only be for explanation clearly done for example, and be not qualification to execution mode.To those of ordinary skill in the art, on the basis of above-mentioned explanation, can also make other multi-form variation or change.Here need not also can't give exhaustive to all execution modes.And conspicuous variation of being extended out thus or change still are among the protection range of the invention.

Claims (10)

1. a real-time online shows control electric leakage intellective protector; Comprise control panel; The end of said control panel is provided with the inlet wire interface and goes out line interface; The set inside of said control panel has ZCT, shunt release, operating mechanism and controller, and the operating grip of said operating mechanism stretches out outside the control panel, and said control panel is provided with the leakage current display screen; Said controller is connected respectively with said ZCT, said shunt release and said leakage current display screen, it is characterized in that:
Be provided with dropout pattern and dropout mode selecting unit in the said controller,
Said dropout pattern comprises pressure do not thread off pattern, delayed releasing pattern and the pattern of normally threading off,
Said dropout mode selecting unit is selected above-mentioned dropout pattern according to the size of the detected leakage current of said ZCT, and switches between above-mentioned pattern according to the situation of change of detected leakage current.
2. real-time online according to claim 1 shows control electric leakage intellective protector; It is characterized in that: said control panel is provided with the leakage current threshold value and selects knob; Said leakage current threshold value selects knob to be connected with said controller, and the threshold value of leakage current is provided with.
3. real-time online according to claim 1 and 2 shows control electric leakage intellective protector, it is characterized in that: be connected with a warning device with said controller, and when the value of said leakage current surpasses pre-set threshold, said alarm activation.
4. show control electric leakage intellective protector according to claim 1 or 2 or 3 described real-time onlines; It is characterized in that: said control panel is provided with dropout mode initialization mechanism; Said dropout mode initialization mechanism is connected with said controller, can be provided with said dropout pattern.
5. show control electric leakage intellective protector according to each described real-time online among the claim 1-4; It is characterized in that: said control panel is provided with delayed releasing and sets up an organization; Said delayed releasing sets up an organization and is connected with said controller; Said delayed releasing sets up an organization and can be provided with the delay time in the said delayed releasing timing unit through controller, and said delay time is 0.3s-0.5s.
6. show control electric leakage intellective protector according to each described real-time online among the claim 1-5; It is characterized in that: said controller connects a memory; Leakage current value when said memory is used to store said shunt release action, and show through said leakage current display screen.
7. show control electric leakage intellective protector according to each described real-time online among the claim 1-6; It is characterized in that: it is manual operation or leakage current is excessive threads off that said memory also is used to write down when said dropout action is carried out, and controller shows information recorded in the said memory through dropout movement memory display unit.
8. show control electric leakage intellective protector according to each described real-time online among the claim 1-7, it is characterized in that: said controller also connects a remote display unit, and said remote display unit and said leakage current display screen show synchronously.
9. each described real-time online shows the control method of control electric leakage intellective protector among the claim 1-8, may further comprise the steps:
(1) through the inlet wire interface with go out in the line interface line attachment; Operating grip through the operating mechanism circuit that closes; After circuit is connected, the leakage current in the said ZCT detection line, and give controller with detected leakage current message transmission; Be provided with the leakage current threshold value in the said controller in advance, said controller is presented at said leakage current value on the said leakage current display screen in real time;
(2) store the leakage current number range of equipment working state in the circuit, holding state in the said controller in advance; Said dropout mode selecting unit is according to the detected leakage current information of said ZCT that receives; Judge the residing operating state of equipment in the circuit; In the in running order leakage current number range of detected said leakage current numerical value, the said controller of said dropout mode selecting unit is set to the said pressure module of not threading off, when leakage current surpasses preset said leakage current threshold value; Said controller not sending controling instruction is given said shunt release, and said shunt release is failure to actuate;
(3) when the numerical value of the detected leakage current of said ZCT changes; Said dropout mode selecting unit is switched said dropout pattern according to the numerical value of said leakage current; When the numerical value of detected said leakage current is in the leakage current number range of holding state; The dropout pattern that said dropout mode selecting unit is switched said controller is said normal dropout module; When leakage current surpassed preset leakage current threshold value, said controller was controlled said shunt release action open-circuit line;
(4) when the size of the detected leakage current of said ZCT produces momentary fluctuation; The dropout pattern that said dropout mode selecting unit is switched said controller is said delayed releasing pattern; Be provided with delay time in the said delayed releasing pattern; After the duration that the detected leakage current value of said ZCT surpasses said leakage current threshold value reached said delay time, said controller was controlled said shunt release and is threaded off.
10. real-time online according to claim 9 shows the control method of control electric leakage intellective protector; It is characterized in that: in said process; When said shunt release moved, said controller was saved in the detected leakage current value of said ZCT this moment in the memory; When manual work is controlled said operating mechanism open-circuit line through spurring said operating grip; Said operating mechanism sends signal to said controller; Dropout action flag bit in the said controller memory is set to 1; When said controller was controlled said shunt release open-circuit line, the said dropout action flag bit in the said memory of said controller was set to 0, and said dropout movement memory display unit shows according to said dropout action flag bit.
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CN104217871A (en) * 2013-06-05 2014-12-17 施耐德电器工业公司 Multifunctional isolating switch
CN104577944A (en) * 2013-10-15 2015-04-29 西门子公司 RCD (residual current device)
CN104577944B (en) * 2013-10-15 2017-12-15 西门子公司 Residual current device
CN105870879A (en) * 2016-04-27 2016-08-17 国网安徽省电力公司六安市叶集供电公司 Method for intelligent measurement and control over low-voltage electric leakage switch
CN107171283A (en) * 2017-07-12 2017-09-15 保定市尤耐特电气有限公司 A kind of new type electric leakageproof device
CN107976606A (en) * 2018-01-06 2018-05-01 河北农业大学 A kind of earth leakage protective monitoring device and its detection method
CN107976606B (en) * 2018-01-06 2020-05-26 河北农业大学 Leakage protection monitoring device and detection method thereof

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