CN202217999U - Electrical wiring apparatus with plurality of modes for getting rid of error wiring - Google Patents
Electrical wiring apparatus with plurality of modes for getting rid of error wiring Download PDFInfo
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- CN202217999U CN202217999U CN2011200375057U CN201120037505U CN202217999U CN 202217999 U CN202217999 U CN 202217999U CN 2011200375057 U CN2011200375057 U CN 2011200375057U CN 201120037505 U CN201120037505 U CN 201120037505U CN 202217999 U CN202217999 U CN 202217999U
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Abstract
The utility model relates to an electrical wiring apparatus, comprising a plurality of wire terminals and a plurality of load terminals, wherein the plurality of wire terminals are coupled with the plurality of load terminals under a reset state, and the plurality of wire terminals are decoupled with the plurality of load terminals under a tripping-out state. A wiring state detection circuit is configured to monitor the plurality of wire terminals or electric signals transmitted through the plurality of load terminals, and can automatically determine the wiring state of the electrical wiring apparatus based on at least one signal characteristic when a device is mounted or remounted; and if the device is in an error wiring state, the wiring state detection circuit generates an error wiring detection signal and if the device is in a correct wiring state, the wiring state detection circuit generates a correct wiring detection signal. A fault detection circuit is configured to generate a fault detection signal responding to at least one detected fault condition, a circuit breaker assembly responds to the wiring state detection circuit and the fault detection circuit, and the circuit breaker is configured to drive the plurality of wire terminals and the plurality of load terminals to a tripping-out state responding to the fault detection signal or the error wiring detection signal.
Description
Technical field
Present invention relates in general to the electric wiring device, relate in particular to the protectiveness connecton layout.
Background technology
Through one or more circuit breaker panel being coupled to distribution system or another this AC power source, AC power is offered house, building or other this type facility.Circuit breaker panel is given one or more subcircuits that are installed in this structure with the AC power division.Electric circuit typically comprises one or more socket outlets, and can AC power delivery to one or more devices that are powered be often referred to load circuit in the art.The socket outlet provides power to the palp load of user, and said load comprises power line and plug, and wherein plug can be inserted in the socket outlet.In the electric wiring system, some fault can take place owing to known, so each electric circuit typically adopts one or more electric circuit protective devices.Circuit protection property device is arranged in circuit breaker panel, socket outlet, the plug etc.
Socket connecton layout and electric circuit protectiveness connecton layout generally are set in the non-conductive shell.This shell comprises the electric terminal that is electrically insulated from each other.Line terminal is tending towards being connected to by setter the power supply of distribution system, and the feedthrough face terminals is connected to downstream, and socket, illuminating equipment, switch etc. provide electrical power.The socket face terminals is electrically connected to the feedthrough face terminals.The socket face terminals is configured to aim at the blade of attachment plug, so that to the palp load of user power supply is provided through this plug.Protective device typically comprises circuit breaker, and it under reset mode, line terminal is connected to face terminals and disconnection is connected with the socket face terminals with feedthrough with line terminal under tripped condition.When breaking down situation, the circuit-breaker tripping operation.Various dissimilar protective devices are arranged, comprise ground-fault interrupter (GFCI), earth fault unit protection device (GFEP) and arc-fault circuit interrupter (AFCI).Some protective device comprise GFCI and AFCI the two.
Face terminals is being connected between the installation period of AC power supplies, protective device maybe be by the mistake wiring.When this thing happens, circuit breaker may not flow to female terminal by interruptive current when having failure condition.Unfortunately, protective device is not typically to User Alarms mistake wiring situation.Therefore, up to being damaged and damaging, mistake wiring situation is only significantly.As stated, the socket face terminals can forever be connected through electric conductor with the feedthrough face terminals.When device when correctly being connected up, circuit breaker typically comprises single circuit breaker, being connected between its open-circuit line terminal and feedthrough load end and the socket face terminals.In other words, typical protective device is not configured to when dangerous failure condition, remove power from user load.Therefore, when the socket-type device is reversed wiring, when circuit breaker is in tripped condition, possibly obtain not protected AC power at socket face terminals place.
What need is the protective device that refusal is supplied power to the protected circuit that comprises female terminal during mistake wiring situation.And, need be in response to the protective device of the situation that connects up between each installation period by mistake.
Summary of the invention
The invention solves the demand.Particularly, the present invention relates to a kind of protective device that refusal is supplied power to the protected circuit that comprises female terminal during mistake wiring situation.More importantly, protective device of the present invention is in response to the mistake wiring situation between each installation period.
Of the present inventionly relate in one aspect to a kind of electric wiring device that comprises a plurality of line terminals and a plurality of face terminals.Under reset mode, said a plurality of line scan pickup coil sides are coupled to said a plurality of face terminals, and under tripped condition, said a plurality of line terminals are from said a plurality of face terminals uncouplings.The wiring state detection circuit is coupled to said a plurality of line terminal or a plurality of face terminals.Said wiring state detection circuit is configured to monitor the signal of telecommunication of on said a plurality of line terminals or a plurality of face terminals, propagating, and from wherein obtaining at least one characteristics of signals.Install or device when reinstalling at device, said wiring state detection circuit is configured to the cloth line states based on the automatically definite said electric wiring device of said at least one characteristics of signals.If being confirmed as, the cloth line states is in mistake cloth line states; Then said wiring state detection circuit generates the detection signal that by mistake connects up; And if the cloth line states is confirmed as and is in correct cloth line states, then said wiring state detection circuit generates correct wiring detection signal.Failure detector circuit is coupled to said a plurality of line terminal, and said failure detector circuit is configured to generate fault detection signal in response to detecting at least one fault state.The circuit-breaker component responds is in wiring state detection circuit and failure detector circuit.Said circuit-breaker is configured to connect up detection signal and drive said a plurality of line terminal and a plurality of face terminals to tripped condition in response to said fault detection signal or mistake.
Other features and advantages of the present invention will be set forth in following embodiment; And partly will become obvious according to embodiment to those skilled in the art; The perhaps cognition through putting into practice invention described herein, said specification comprises the embodiment that is accompanied by claim and accompanying drawing.
Should be appreciated that above-mentioned general description and following embodiment only are examples of the present invention, and aim to provide and be used to understand claim and require the essence of protection invention and the general introduction or the framework of characteristic.Included accompanying drawing is used to provide to further understanding of the present invention, incorporates and form the part of this specification into.Accompanying drawing shows different embodiments of the invention, and is used for explaining principle of the present invention and operation together with specification.
Description of drawings
Fig. 1 is the sketch map according to the protective device of first embodiment of the invention;
Fig. 2 is the sketch map of protective device under mistake cloth line states shown in Figure 1;
Fig. 3 is the sketch map according to the protective device of second embodiment of the invention;
Fig. 4 is the sketch map according to the protective device of third embodiment of the invention;
The connect up sequential chart of defencive function of the mistake of the present invention that shows Fig. 5 A-5E;
Fig. 6 is the sketch map according to the mistake wiring lock-in circuit of fourth embodiment of the invention;
Fig. 7 is the front view according to protective device of the present invention;
Fig. 8-the 9th is according to the sectional view of the protective device of the embodiment of the invention;
Figure 10-the 11st, the sectional view of the protective device of alternate embodiment according to the present invention.
Embodiment
Detailed in now example embodiment of the present invention, its example shown in the drawings.As possible, identical Reference numeral is used for representing same or analogous part in whole accompanying drawing.Begin to show the example embodiment of protective device of the present invention from Fig. 1, and represent with Reference numeral 10 in the whole text.
The following detailed description, protective device 10 comprises a plurality of line terminals that are coupled to a plurality of face terminals through at least one conductive path.When said a plurality of face terminals are connected to supply voltage, the signal propagation characteristics on said at least one conductive path of device 10 monitorings.Device 10 is arranged such that monitoring step begins when each supply voltage is applied to a plurality of face terminals.Generate the trip signal that by mistake connects up based on the prearranged signals propagation characteristic.In at least one conductive path, introduce electric discontinuity in response to said trip signal.
See figures.1.and.2, disclose sketch map according to the protective device 10 of first embodiment of the invention.Fig. 2 is the protective device sketch map under the mistake cloth line states.
In one embodiment of the invention, spacing contact 30 is configured to break off one or more feedthrough terminals 16,18 with corresponding female terminal 20,22.When device was connected up by mistake, opened these contacts.Spacing contact 30 operationally is coupled to circuit-breaker 24, makes to open when circuit-breaker 24 these contacts under tripped condition.Perhaps, spacing contact 30 operationally is coupled to additional circuit breaker (not shown), makes that open these contacts when device 10 is connected up by mistake.
Tripping solenoid 42 keeps the contact tripping operation of excitation in circuit-breaker 24.The contact outage flow of current of opening.The sensor output signal that transformer 26 generates is also stopped by the interruption of fault current.When the transformer signal stopped, detector output signal change state ended SCR40.In case SCR40 ends, solenoid 42 is de-energisation in less than about 25 milliseconds time just.After fault state is eliminated, can adopt SR 46 with reset circuit circuit breaker 24.
With reference to Fig. 2, if electric current and polarity of voltage are opposite each other, then processor 56 confirms that device 10 is by anti-wiring.In response to anti-wiring situation, processor 56 sends signal so that its conducting makes circuit-breaker 24 tripping operations to SCR 40.If SR 46 work, then circuit-breaker 24 temporarily resets, but after when processor 56 detects mistake once more and connects up situation, then trip very soon.Circuit-breaker continues tripping operation and is corrected up to anti-wiring situation.Should attentively be that the device tripping operation is that promptly, setter does not need the manual operation testing apparatus or manually carry out some other operations to lock with initialization automatically.Yet current sensor is described for confirming prerequisite correct or anti-wiring.Therefore, even exist the mistake situation device that connects up also will can not lock, connect this device and when generating electric current up to load (60,62).Expectation device 10 needn't connect external loading by the time and just lock in response to mistake wiring situation.
In alternative embodiment, device 10 can comprise the internal load 64 that is arranged between current transformer 54 and the circuit-breaker 24.Internal load 64 has the electric current of polarity of indicating correct wiring to work with external loading 60 similar modes through generation.Different with load 60, when device 10 during by anti-the wiring, load 64 does not generate the electric current of the transformer 54 of flowing through.Therefore, when device 10 when comprising internal load, lock-in circuit 50 is configured to when current polarity and polarity of voltage match each other, and permission device 10 resets.On the other hand, lock-in circuit 50 is configured to when current polarity and polarity of voltage are opposite each other or transformer 54 when not sensing load current (, device is connected to before the outside mistake cloth linear load 60) makes device 10 tripping operations.
Alternatively, can internal load 66 be arranged on current transformer 54 and line terminal 12, between 14.Load 66 is through generating the anti-electric current that flows through transformer 54 that connects up of expression to carry out work with load 60 similar modes.Different with load 60, when device 10 was correctly connected up, load 66 did not generate the electric current of the transformer 54 of flowing through.In this embodiment, when comparing with polarity of voltage through the current polarity of load 66 (having or do not have load 60) when opposite each other, lock-in circuit 50 is configured to make device 10 tripping operations.On the other hand, when current polarity and polarity of voltage matches each other or when not having load current, lock-in circuit 50 is configured to allow device 10 to reset.In an embodiment more of the present invention, comprise load 64 and 66 the two.This has also been avoided in order to confirm that protective device is whether by correct wiring and the external loading that needs.
Return with reference to Fig. 1, can transistor 58 be arranged between SCR 40 and the processor 56.Processor 56 is regulated transistor 58 conductings with predetermined repetition rate pulsation ground, so that initialization is through the electric current of solenoid 42.Yet although each pulse generates the electric current through solenoid 42, the final energy in the solenoid is not enough to activate tripping mechanism 44.Solenoid 42 is as pulse load.Processor 50 is configured to confirm that with respect to the direction (polarity) of polarity of voltage whether device 10 is by correct wiring based on the pulse current through solenoid 42.Processor can be confirmed the mistake wiring based on one or more pulses.
In another embodiment, solenoid 42 can be connected between current transformer 54 and the circuit-breaker 24.Alternatively, solenoid 42 can be connected feedthrough face terminals 16,18 or socket face terminals 20, between 22.In either case, transistor 58 is regulated solenoid with aforementioned manner pulsation ground.Solenoid 42 is once more as pulse load.
In an embodiment again, transistor 58 is configured to pulsation ground regulating resistor 64 or 66 to the conducting (not shown).Usually, rate of heat dissipation that the advantage of the electric current through internal load (64,66,42) is to reduce load is regulated above ten times in pulsation ground.Therefore, load can miniaturization.
In the embodiment shown in fig. 1, indicating device 62 is coupled to processor 56.Indicating device 62 comprises the visual and/or audible indications of the situation that by mistake connects up.Processor 56 can provide repeating signal for indicating device 62, and indicating device 62 provides flicker and/or the beeping sound that the expression mistake connects up situation in this case.
Although Fig. 1 and Fig. 2 relate to ground fault detection circuit,, the present invention is equally applicable to the protective device of other type.Those of ordinary skills will recognize that all types of basically protective devices all comprise similar parts, be used for sensing, detection and the interrupt circuit interruption contact in response to certain fault conditions.For example, the transducer in the arc-fault circuit interrupter (AFCI) is similar to transformer 26, but it is configured to the sensing load current usually, rather than differential current and/or line voltage.The AFCI transducer can comprise at least one in toroidal transformer, bypass or the voltage divider.And the detector among the AFCI can be implemented as the integrated circuit that form factor is similar to detector 32.The AFCI detector can also be configured to detect the arc fault situation based on the frequency spectrum of load current.Those of ordinary skills will recognize that arc fault can show the high frequency noise pulse mode.In case detect the arc fault situation, then signal just sends to SCR 40 so that the device tripping operation.
With reference to Fig. 3, the sketch map according to second embodiment of the invention is disclosed.The lock-in circuit 300 that by mistake connects up is similar with the lock-in circuit 50 among Fig. 2 with Fig. 1.Embodiment shown in Fig. 3 comprises the bypass transducer 302 that is coupled to processor 304.The function of transducer 302 is similar with transformer 54.Processor 304 is configured to use bypass transducer 302 to confirm the polarity of load current.
As embodied here with shown in Fig. 4, the sketch map according to third embodiment of the invention disclosed.This embodiment itself does not comprise independent load current polarity transducer, but protective device self is configured to confirm the polarity of load current.Particularly, miss the lock-in circuit 400 that connects up and comprise the switching device 402 that is coupled to processor 400 through transistor 406.Switching device 402 opens or closes in response to the signal of from processor 404.Particularly, switching device 402 opens or closes through the signal of transistor 406 in response to from processor 404.When switching device 402 is opened, through the identical and differential transformer 26 of oppositely flowing through of electric current of live wire conductor 12 and center line conductor 14.Therefore, the differential wave that is generated by transformer 26 is not represented fault (or simulated failure) situation.Yet when switching device 42 cut out, the part of the load current of flow through or other conductor was reverse through switching device.Because the electric current of two conductors is no longer identical, said fault-signal offers detector 32.Detector 32 provides the output load current signal through the detector output line to processor 404.Processor 404 uses said output load current signal to confirm load current polarity.
Also note that transistor 406 can carry out with embodiment shown in Figure 1 in the performed similar function of transistor 58.Transistor 58 provides pulse signal to solenoid 42.As response, solenoid 42 temporarily is driven to conducting state so that the pulse load electric current to be provided.Therefore, the embodiment among Fig. 4 provides some to be used to detect the means of mistake wiring or the anti-situation that connects up.
Fig. 5 A-5E shows the sequential chart that the present invention misses the defencive function that connects up.Describe waveform with reference to figure 1, but be equally applicable to other embodiments of the invention.Waveform is applicable to anti-wiring and is in the protective device 10 of (that is, AC power supplies voltage is connected to device feedthrough terminal 16,18) under the reset mode.
Fig. 5 A is the sketch map of load current 502.AC power supplies voltage 500 is being applied to device 10 constantly.With reference to figure 5B, processor 56 also generates predetermined time delay interval 501 when 500 begin constantly.Up to process delay interval 501, even there is mistake wiring situation, the lock-in circuit that by mistake connects up also is prevented from tripping operation.The time interval 501 is preprogrammed into processor 56 based on known transient noise attribute.Transient noise 505 can be by beginning to apply AC power to device or after the power cut-off, applying AC power and generate.Therefore, the time interval 501 is programmed to processor 56 to prevent the error lock of instantaneous 501 apparatus for initializing 10.Those of ordinary skills should understand interval 501 less than about 1 second.
Fig. 5 C is the sketch map of supply voltage 503.Notice AC power supplies voltage 503 and load current 502 out-phase shown in Fig. 5 A.As described before, out-of-phase condition representes that protective device is by the fact of anti-wiring.Be also noted that AC power supplies voltage 503 and load current 502 out-phase phase-shift phases are 506.The possibility of the noncompensable inductive load phase shift of phase shift 506 expression loads 64,66 or 42 (if existence).
Shown in Fig. 5 D, processor 56 is pulsed the ground regulating load to conduction state during interval 508.As stated, carry out pulse modulation to compare the polarity of load current and supply voltage.In the embodiment that Fig. 5 provided, two signals are opposite polarities.Therefore, processor 56 confirms that device 10 is by the mistake wiring.Processor 56 can be programmed so that at interval and 508 only occur in during the negative half-cycle of supply voltage for above-mentioned reasons.
Also note that should not allow at interval 508 consistent with interval 506.Although install 10 really by the mistake wiring, because phase shift 506, load current and supply voltage polarity were still mated in these time intervals.Processor 56 is programmed to from the beginning time of delay section 510 of current over-zero with interval 508, so that avoid through processor 56 expression misroute states.
As embodied here with shown in Fig. 6, the sketch map according to the mistake wiring lock-in circuit of fourth embodiment of the invention is disclosed.Application reference number is No.10/884, and 304 United States Patent (USP) is incorporated in this integral body and to be used for the mistake wired circuit that illustrated in detail comprises fuse.The lock-in circuit 600 that by mistake connects up is connected to the line side of circuit-breaker 24.When protective device 10 is installed, fuse 602 closures.If device is connected up by correct with the supply voltage valid period in installation, then the electric current through circuit 600 generates the simulated failure electric current so that circuit-breaker 24 tripping operations.Electric current continues to flow through circuit 600, and the thermal element 604 in being arranged on circuit 600 is opened fuse 602, thus the being electrically connected property in the open circuit.In a single day being electrically connected property breaks off, and then the fault current of simulation stops, and allows device 10 to reset.
Suppose device resets, if device is connected up by mistake installing with the supply voltage valid period, then electric current is through circuit-breaker 24 circuit 600 of flowing through.The simulated failure electric current makes circuit-breaker 24 tripping operations.Conversely, fault current is owing to the tripping operation action stops to flow.Notice circuit-breaker in response to the simulated failure current trip typically less than 25 milliseconds.The shortage of heat that in temperature-sensitive element 604, generates during this time interval is to open fuse 602.Therefore, all can be worked by correct distribution fuse 602 up to device.Device 10 continues tripping operation in the back that resets at every turn, up to installing by correct wiring.
In alternate embodiment, fuse 602 is configured to the spontaneous heating in response to electric current, thereby does not need temperature-sensitive element 604.Other mistake wired circuit is similar to circuit 600 on performance, but is reconfigured to signal or the simulated failure signal that generates as being applicable to the protective device (not shown) of ground fault circuit interrupter, arc-fault circuit interrupter, arc fault and earth fault combination circuit breaker or other type.
But the fuse that can also use repeats bits, Reclosable is realized fuse 602.After installation removed, closed fuse 602 was to recover mistake wired circuit 600 at device 10.At this moment, by under the situation of mistake wiring, protective device is configured to get into lock-out state during reinstalling.
Fig. 7-11 shows typical case of the present invention and installs.With reference to Fig. 7, the front view according to protective device of the present invention is disclosed.Device 10 comprises the front casing 750 that comprises flange 752.Protective device is configured to cover through wallboard 700, and said wallboard 700 is fixed to device 10 by securing member 702.Perhaps, can use panel cladding system 10, this panel is fixed to device 10 by securing member 702.Securing member 702 makes wallboard 700 (or panel) press to flange 752.
Fig. 8 is the sectional view of protective device shown in Figure 7.Device 10 comprises the shell 754 that is configured to front casing 750 couplings.Printed circuit board (PCB) (PCB) 758 is arranged in the device 10.But repeats bits fuse 602 is coupled to PCB758.But repeats bits fuse 602 is resetted through arm 603 being applied transient force.Notice in Fig. 8 and not shown wallboard 700 or the panel of being equipped with.Therefore, because the bias force of spring 760, probe 756 freely extends to the idle area on the flange 752.The bias force of spring 760 also forces arm 603 to press to fuse 602, makes fuse closed again.Therefore, in case wallboard is removed, then just rebulid fuse mistake wired circuit 600.
For the association area those of ordinary skill,, but repeats bits fuse 602 of the present invention is made various modifications and modification is conspicuous according to the form factor of PCB 758 and the setting of arm 603.Through example, but can adopt the model X 2296 that makes by Thermo-Disc to realize repeats bits fuse 602.Certainly, but those of ordinary skill in the art will appreciate that and can adopt any suitable repeats bits fuse in the present invention.
Figure 10-the 11st, the sectional view of the protective device of alternate embodiment according to the present invention.Probe 800 is except comprising striker 802, and is similar with probe 756.Striker 802 is configured to deflection cantilever beam 804 when wallboard 700 is installed.In case cantilever beam 804 has departed from scheduled volume, then it is removed striker 802 and temporarily upsprings and applies power with closed fuse again to arm 603.Therefore, can only, wallboard come to activate again mistake wired circuit 600 through being installed.In alternative embodiment, configuration striker 802 is so that generate the transient force that imposes on arm 603 when wallboard 700 is removed.For this embodiment, the activation again of mistake wired circuit 600 need not installed wallboard, only need remove wallboard.
For a person skilled in the art, do not depart under the situation of spirit and scope of the invention, the present invention has been done various modifications and modification is conspicuous.Therefore, the present invention is intended to cover modification of the present invention and the modification in accompanying claims and the equivalent scope thereof.
Claims (16)
1. electric wiring device comprises:
A plurality of line terminals and a plurality of face terminals, said a plurality of line terminals are coupled to said a plurality of face terminals under reset mode, and under tripped condition with said a plurality of face terminals uncouplings;
The wiring state detection circuit; Be coupled to said a plurality of line terminal or said a plurality of face terminals; Said wiring state detection circuit is configured to monitor the signal of telecommunication of on said a plurality of line terminals or said a plurality of face terminals, propagating; And obtain at least one characteristics of signals from it; Said wiring state detection circuit is configured to be in mistake cloth line states in the cloth line states that device is installed or device confirms automatically said electric wiring device based on said at least one characteristics of signals when reinstalling if confirm said cloth line states, and then said wiring state detection circuit generates the detection signal that by mistake connects up; If confirm that said cloth line states is in correct cloth line states, then said wiring state detection circuit generates correct wiring detection signal;
Failure detector circuit is coupled to said a plurality of line terminal, and said failure detector circuit is configured to generate fault detection signal in response to detecting at least one fault state; And
The circuit-breaker assembly; In response to said wiring state detection circuit and said failure detector circuit, said circuit-breaker is configured to connect up detection signal in response to said fault detection signal or said mistake and drives said a plurality of line terminal and said a plurality of face terminals gets into said tripped condition.
2. device as claimed in claim 1; But wherein said wiring state detection circuit comprises the fuse of the repeats bits that is configured to open in response to said correct wiring detection signal, but the fuse of said repeats bits is configured to after opening the closure in response to the action relevant with reinstalling said device.
3. device as claimed in claim 1; Wherein said wiring state detection circuit comprises that the phase place of two AC signals of comparison is to confirm the phase-comparison circuit of cloth line states; Said phase-comparison circuit comprises the load impedance element that is coupled to said a plurality of line terminal or said a plurality of face terminals; Said load impedance element is propagated the load current with load current phase place, and said phase-comparison circuit is configured to the supply voltage phase place of said load current phase place and supply voltage is compared to confirm said cloth line states.
4. device as claimed in claim 1 comprises that also at least one user can touch button, need not the user and operates said at least one user and can touch button and just automatically generate said wiring detection signal.
5. device as claimed in claim 4, wherein said at least one user can touch button and comprise the testing button that is configured to when being pressed, generate the simulated failure situation.
6. device as claimed in claim 4, wherein said at least one user can touch button and comprise and being configured to when the time being influenced the SR that said circuit-breaker resets by operation.
7. device as claimed in claim 4, wherein said at least one user can touch button and comprise the single button that is configured to carry out test function and reset function this two.
8. device as claimed in claim 1, wherein said circuit-breaker comprise that four groups interrupt the contact.
9. device as claimed in claim 1; Wherein said at least one characteristics of signals comprises line polarity of voltage and load current polarity; And wherein said wiring state detection circuit comprises comparator circuit; Said comparator circuit is configured to said line polarity of voltage and said load current polarity are compared, if said line polarity of voltage and the basic homophase of said load current polarity confirm that then said cloth line states is correct wiring; If said line polarity of voltage and the basic out-phase of said load current polarity confirm that then said cloth line states is the mistake wiring.
10. device as claimed in claim 1; Wherein said wiring state detection circuit also comprises automatic testing circuit; Said automatic testing circuit is configured at each said automatic testing circuit when de-energized state is converted to energized condition; During the predetermined portions in AC cycle, carry out automatic test period, said automatic testing circuit is configured to when definite said cloth line states is correct wiring, stop to carry out said automatic test period; Said automatic test period comprises at least one interrogation pulse is sent at least one load, and confirms said cloth line states based on monitoring response signal characteristic.
11. device as claimed in claim 10, wherein said automatic testing circuit also comprises:
Current sensor is coupled to said a plurality of line terminal or said a plurality of face terminals, and said current sensor is configured to the sensing load current polarity;
Voltage sensor is coupled to said a plurality of line terminal or said a plurality of face terminals, and said voltage sensor is configured to the sense wire polarity of voltage;
Processor is coupled to said current sensor and said voltage sensor, and said processor is configured to generate the said mistake detection signal that connects up based on more said line polarity of voltage and said load current polarity; And said at least one load comprises the internal load that is coupled to said a plurality of line terminal or said a plurality of face terminals.
12. device as claimed in claim 11; Wherein said internal load is coupled to said a plurality of line terminal, and said processor is configured to when the relative to each other basic out-phase of said line polarity of voltage and said load current polarity, confirm said wiring STA representation mistake wiring situation.
13. device as claimed in claim 11; Wherein said internal load is arranged between said current sensor and the said circuit-breaker, and said processor is configured to when said current sensor does not sense the electric current of the said internal load of flowing through, confirm said wiring STA representation mistake wiring situation.
14. device as claimed in claim 11; Wherein said internal load is arranged between said current sensor and the said a plurality of line terminal; Said processor is configured to when said current sensor does not sense the electric current of the said internal load of flowing through, confirm the said wiring STA representation situation that correctly connects up, and wherein said processor is configured to when the relative to each other basic out-phase of the polarity of the polarity of the electric current of the said internal load of flowing through and said line voltage, confirm said wiring STA representation mistake wiring situation.
15. device as claimed in claim 11, wherein said at least one load is external loading or internal load, and said internal load is resistive load or inductive load.
16. device as claimed in claim 1; But wherein said wiring state detection circuit also comprises the switch element of the repeats bits that is coupled to the switch return actuator; Only when but the switch element of said repeats bits is in closure state; Enable said wiring state detection circuit; But said switch return actuator be configured in response to install or reset the relevant behavior of said device and repeat the switch element of the said repeats bits of closure, if said wiring state detection circuit is configured to AC power supplies and is connected to said a plurality of face terminals, but then generate connect up detection signal and do not open the switch element of said repeats bits of said mistake; If said wiring state detection circuit is configured to said AC power supplies and is connected to said a plurality of line terminal, but then generate correct wiring state detection signal and open the switch element of said repeats bits.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12/651,802 US7885045B1 (en) | 2004-07-02 | 2010-01-04 | Wiring device with multi-shot miswire |
| US12/651,802 | 2010-01-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202217999U true CN202217999U (en) | 2012-05-09 |
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ID=46019151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200375057U Expired - Fee Related CN202217999U (en) | 2010-01-04 | 2011-01-04 | Electrical wiring apparatus with plurality of modes for getting rid of error wiring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202217999U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107741536A (en) * | 2017-11-08 | 2018-02-27 | 国家电网公司 | The unloaded charging vector angle method method of circuit |
| CN108369881A (en) * | 2015-11-03 | 2018-08-03 | 豪倍公司 | The ground fault circuit interrupter that frequency of use is recognized and measured |
-
2011
- 2011-01-04 CN CN2011200375057U patent/CN202217999U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108369881A (en) * | 2015-11-03 | 2018-08-03 | 豪倍公司 | The ground fault circuit interrupter that frequency of use is recognized and measured |
| CN108369881B (en) * | 2015-11-03 | 2020-03-10 | 豪倍公司 | Ground fault circuit interrupter using frequency identification and measurement |
| CN107741536A (en) * | 2017-11-08 | 2018-02-27 | 国家电网公司 | The unloaded charging vector angle method method of circuit |
| CN107741536B (en) * | 2017-11-08 | 2019-12-31 | 国家电网公司 | Circuit no-load charging vector checking method |
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Granted publication date: 20120509 Termination date: 20130104 |
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| CF01 | Termination of patent right due to non-payment of annual fee |