CN104701835A - NL input stipulation comprehensive residual-current circuit breaker - Google Patents

NL input stipulation comprehensive residual-current circuit breaker Download PDF

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Publication number
CN104701835A
CN104701835A CN201510088295.7A CN201510088295A CN104701835A CN 104701835 A CN104701835 A CN 104701835A CN 201510088295 A CN201510088295 A CN 201510088295A CN 104701835 A CN104701835 A CN 104701835A
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China
Prior art keywords
circuit
circuit breaker
stipulation
breaker
input
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CN201510088295.7A
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Chinese (zh)
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韦明肯
蒙治旱
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Individual
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Individual
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Priority to CN201510088295.7A priority Critical patent/CN104701835A/en
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Abstract

The invention relates to an NL input stipulation comprehensive residual-current circuit breaker. When one of the following four conditions occurs: phase line and middle line anti-stipulation input, electric appliance casing abnormal electrification but the leakage current is smaller than 15 milliampere, load side electricity leakage and overlarge load current or short circuit, the test indicates that the device can act and perform breaking within 0.1 second to cut off a power supply. The circuit breaker comprises a stipulation circuit and a market existing breaker. The stipulation circuit is divided into a detection circuit and an exciting circuit which achieve reverse connected phase line neutral line anti-stipulation input to react to the electrification of the electric appliance casing rapidly, the other end of the detection circuit is not grounded and is a ground metal plate, and anti-stipulation input phase line signals and electric appliance casing electrification signals can be detected sensitively through the ground capacitance effect. The breaker portion and the stipulation circuit are subjected electric signal coupling to produce a breaking action effect through a breaker zero-sequence transformer by being wounded with a primary coil, and the breaker can still maintain various original breaker functions.

Description

NL input regulation comprehensive leakage circuit breaker
Technical field
In order to the Electrical Safety of user in mains supply, specify that each facility switching will be connected in phase line, the safety requirements that regulation phase line and center line input will meet on electrician, as long as accomplish that mains switch cuts off, controlled device must not bring line voltage again.Though continue charged state to prevent causing the reversal connection of phase line and the neutral line to cause mains switch to cut off for various reasons and still there is equipment and Danger Electric shock risk occur, therefore Te Famingben item device, this device only allows phase line and the neutral line to enter by the regulation termination preset, if anti-regulation access phase line L and this device of center line N can; action disjunction immediately, thus avoid the potential safety hazard because reversal connection brings.This device possesses again outer casing electrification, electric leakage, short circuit and overload breaking function simultaneously.
Background technology
Though the reminding technology of existing prompting phase line and neutral line input reverse-connection at present, but narrow application range, service condition is too special, popularization is therefore not strong, and prior art does not possess the function of quicking break of actual reversal connection phase line and the neutral line, is only prompting, so from safe and reliable target, need to invent and a kind ofly only allow by regulation access phase line and the equipment of the neutral line, specifying if counter can action disjunction immediately into phase-connecting wire and this equipment of the neutral line, and refusal electric energy exports.
Summary of the invention
A kind of circuit breaker, possesses four kinds of functions simultaneously: when 1, generation phase line and the anti-preset rules of center line access, open circuit is not immediately powered; 2, there is dangerous voltage on electric appliance casing band and leakage current does not reach the open circuit immediately of 15 MAHs; 3, the situations such as electric shock occurring causes leakage current to reach the open circuit immediately of more than 15 milliamperes (containing); 4, load-side generation electric current is excessive or short trouble, rapid open circuit.According to these four kinds of functional characteristics by this circuit breaker called after " NL input regulation comprehensive leakage circuit breaker ".As shown in Figure of description Fig. 1, this contrive equipment is divided into two large divisions, and Part I is that phase line center line violates preset rules input and electric appliance casing abnormal belt electrical signal detection and exciting circuit thereof, is called for short allocated circuit 1.Part II is the DZ15LE type residual current circuit breaker (single phase leakage braker) that existing market is sold, and is called for short circuit breaker 2 herein.
testing circuit 1.1 and exciting circuit 1.2 is divided into again in allocated circuit 1.Its feature comprises: testing circuit is by rectifier diode 1N4007VD 11, rectifier diode 1N4007VD 12, fixed carbon resister (1.62m Ω) R 10, neon bulb aeolight Ne(test pencil neon lamp) and near-earth metal derby (13.2mm × 5.9mm × 0.5mm) GD form, wherein VD 12and R 10series connection, VD 11negative electrode and VD 12negative electrode be connected to each other, VD 11anode connects the neutral line and exports regulation end N 1, VD 12anode connects R 10a certain pin, R 10another pin connects protected electric appliance casing, and a certain pin of neon bulb aeolight Ne is connected with near-earth metal derby GD, and another pin of neon bulb aeolight Ne connects VD simultaneously 11negative electrode and VD 12negative electrode, near-earth metallic plate GD installation parallel with body of wall and be not more than 5 centimetres with body of wall distance, near-earth metallic plate GD can not be communicated with body of wall, neon bulb aeolight Ne light-emitting area immediately photo resistance R 20sensitive surface, the two is without electrical connection, and the two encapsulates closely with black material, accomplishes air tight not light leak, in case UV light and surrounding influence of moisture.Exciting circuit 1.2 is by halfwave rectifier diode 1N4007VD 21,halfwave rectifier diode (1N4007) VD 22, rectifier diode 1N4007VD 23, photo resistance R 20(cadmium sulfide (CdS) photo resistance ￠ 5mm), current limliting divider resistance resistance R 21and R 22, divider resistance R 23(24K Ω), bypass condenser C 2(50V, 0.33 μ F), one-way SCR (BT1690) T 2, circuit breaker 2 zero-sequence transformer adds around primary coil L 2, low frequency choke induction L 5composition, wherein rectifier diode 1N4007VD 23negative electrode ,r 20, R 21, R 22mutual series connection, diode 1N4007VD 23anode connect halfwave rectifier diode 1N4007VD 21anode, R 21another pin connects one-way SCR T 2control pole G, R 23and C 2be connected in parallel on one-way SCR T 2control G and negative electrode K between, these elements are with unidirectional k controllable silicon T 2for core, composition switching circuitry, VD 11,vD 21,vD 23the anode of three connects neutral line input regulation end N jointly 1, VD 22anode and one-way SCR T 2negative electrode K connects, VD 22negative electrode and circuit breaker zero-sequence transformer is elementary adds coiling L 2and low frequency choke induction L 5be in series, L 2another pin and phase line export and specify to hold S 1be connected.
circuit breaker 2 is the existing single-phase circuit breaker product of producer, in this device, the left end of its mains input side is held S as phase line input regulation, and its load outlet side left end, as neutral line input regulation end N, correspondingly exports as phase line and specifies end S by right-hand member 1, right-hand member exports regulation end N as the neutral line 1.
NL inputs the problem of automatically quicking break that regulation comprehensive leakage circuit breaker solves 220V phase line and the reversal connection of center line input wires, solve the problem that all single knife switches can not be serially connected on center line because of reversal connection phase line and center line, thus substantially increase the fail safe of low voltage electric network electricity consumption, due to its low cost and the simple and reliable problem solving again self and popularize, it can be combined as a whole with existing single phase leakage braker, can not increase the complexity that circuit is installed, thus it be easy to apply.
as shown in Figure of description Fig. 1, if the S end of low pressure 220 volts of phase line access regulations, neutral line access regulation N end, then by VD 11,the circuit of Ne, near-earth metallic plate GD and the earth composition and neutral line equipotential, Ne no current passes through not luminous, photo resistance R 20be the above resistance of 20 megaohm or infinitely great resistance, cause one-way SCR (BT1690) T 2to control between pole G and negative electrode pressurized far below starting resistor, then T 2end between anode A and negative electrode K, halfwave rectifier diode 1N4007VD 21,halfwave rectifier diode (1N4007) VD 22,one-way SCR (BT1690) T 2,circuit breaker 2 zero-sequence transformer adds around primary coil L 2,low frequency choke induction L 5the path no current formed, circuit breaker zero-sequence transformer secondary coil L 1no-output voltage, circuit breaker is failure to actuate, line output terminal N in circuit breaker regulation 1with regulation phase line output terminal S 1rectify and often load-side is powered.
as shown in accompanying drawing Fig. 1, if low pressure 220 volts of phase line mistakes receive the N end of regulation, neutral line mistake access regulation S end, then N 1end is relative to VD 11,ne, near-earth metallic plate GD have 220 volts to apply voltage, phase line, VD with the circuit of the earth composition 11,ne, near-earth metallic plate GD form loop with the earth, have electric current to cause it to send ruddiness by aeolight Ne, photo resistance R 20irradiated, R 20resistance drops to rapidly below 500 Europe, has enough large electric current through R 21, R 22, R 23, wherein R 21and R 22play the effect of current limliting dividing potential drop, R 23both end voltage is about 0.3 volt, and this voltage is applied to one-way SCR T 2control pole G and negative electrode K between, cause one-way SCR T 2anode A and negative electrode K between transient switching, halfwave rectifier diode 1N4007VD 21,halfwave rectifier diode (1N4007) VD 22,one-way SCR (BT1690) T 2,circuit breaker 2 zero-sequence transformer adds around primary coil L 2,low frequency choke induction L 5the circuit formed has the transient current of 0.03A to pass through, circuit breaker zero-sequence transformer secondary coil L 10.3 volt of induced voltage is had to export, circuit breaker 2 action power dump input rapidly, whole device is charged also not output voltage neither, until rectification phase line correctly receives regulation end S and the neutral line correctly receives regulation end N, after multiple button, whole device could output voltage be load supplying, ensure that on load circuit, each switch all can correctly be serially connected in phase line, avoids error to cause electric shock accidents.
as shown in accompanying drawing Fig. 1, if phase line and the neutral line be correct end S and the end N accessing regulation respectively, whole device can to load normal power supply, when dangerous voltage in load-side a certain electric appliance metal shell abnormal belt and the leakage current that causes are less than 15 milliamperes, and the near VD of this dangerous voltage 11,ne, near-earth metallic plate GD are with the earth, and all the other processes are also described identical with this expository writing the 5th section, and circuit breaker, by rapid action disjunction, cuts off power supply, ensures Electrical Safety.If getting an electric shock if any people of other situation electric leakage occurs load-side, cause leakage current to reach more than 15 milliamperes, then circuit breaker also rapid action disjunction, cuts off the electricity supply, ensures safety.If load-side electric current is excessive or the fault that is short-circuited, circuit breaker is also by rapid action disjunction.
apparatus of the present invention have following functions and advantage:
(1) in generation phase line with neutral line mistake enters to connect, the abnormal charged disjunction of electric appliance casing, load-side exception leak electricity one of three kinds of situations, this device all can trip disjunction in 0.1 second.
(2) this device is due to access extremely high value resistance R 22, almost do not have standby current at the autologous circuit of normal power supply timer, namely power consumption is almost nil.
(3) what this device used is discrete component entirely, and number of elements is few, and circuit is simple, the circuit breaker that former market is sold is reequiped without destructiveness, so whole device is simple and reliable, is easy to manufacture and install and use, applicable elements is comparatively wide in range, has larger popularizing value.
accompanying drawing illustrates:
Fig. 1: NL input regulation comprehensive leakage breaker circuit figure
In accompanying drawing Fig. 1:
Regulation center line incoming end N
Regulation phase line incoming end S
Line output terminal N in regulation 1
Regulation phase line output terminal S 1
Electric capacity C 1, C 2,c 3
Testing circuit 1.1:
Rectifier diode 1N4007VD 11
Rectifier diode 1N4007VD 12
Fixed carbon resister (1.62m Ω) R 10
Neon bulb aeolight (test pencil neon lamp) Ne
Near-earth metal derby (13.2mm × 5.9mm × 0.5mm) GD
Exciting circuit 1.2:
Halfwave rectifier diode 1N4007VD 21
Halfwave rectifier diode (1N4007) VD 22
Rectifier diode 1N4007VD 23
Cadmium sulfide (CdS) ￠ 5mm photo resistance R 20
Current limliting divider resistance resistance R 21and R 22
Divider resistance R 23(24K Ω)
Bypass condenser C 2(50V, 0.33 μ F)
One-way SCR (BT1690) T 2
Circuit breaker 2 zero-sequence transformer adds around primary coil L 2
Low frequency choke induction L 5
Each component parameters in accompanying drawing Fig. 1:
1, all diode VD is rectifier diode 1N4007.
2, T 1, T 2be one-way SCR BT1690.
3, L 1for the secondary coil of the zero-sequence transformer of genuine man coiling, L 2for the coiling of genuine man zero-sequence transformer add around primary coil (1 to 60 circle), L 3for overload (or short circuit) release, L 4for leakage tripping device, L 5be 330 μ H power inductances.
4, electric capacity C 1capacity is 104PF, electric capacity C 2and C 3withstand voltage 50V, capacity 0.33 μ F.
5, R 20for cadmium sulfide (CdS) ￠ 5mm photo resistance.R 21, R 31, R 33be 670 Europe resistances.R 23, R 32, R 34be 24 kilo-ohms of resistances, R 10be 1.62 megaohm resistances, R 22be 20 megaohm resistances.
6, Ne is general electroprobe neon bulb.
7, near-earth metal derby GD:13.2mm × 5.9mm × 0.5mm, aluminum, copper.
Embodiment:
Whole device is arranged on metope, liftoff (floor) about 1.8 meters to 2.2 meters high left and right, external phase line access S end, external neutral line access N end, S 1with N 1the phase line and the neutral line that are respectively load-side export, near-earth metallic plate GD installation parallel with body of wall and be not more than 5 centimetres with body of wall distance, and near-earth metallic plate GD is not communicated with body of wall, and wall covering is not limit.Whole device can be installed, R at any height floor 10one pin connects VD 12, another pin connecting circuit shell (namely connecting all socket protective holes of load-side).If anti-regulation that phase line and the neutral line occur inputs, or generation load shell is often electric, or generation leak current fault and electric current excessive etc., the circuit breaker of this device all can move interior tripping operation disjunction power supply 0.1, directly just can detain power supply again to above several failture evacuation.

Claims (9)

1. a circuit breaker, possesses four kinds of functions simultaneously: when 1, generation phase line and the anti-preset rules of center line access, open circuit is not immediately powered; 2, there is dangerous voltage on electric appliance casing band and leakage current does not reach the open circuit immediately of 15 MAHs; 3, the situations such as electric shock occurring causes leakage current to reach the open circuit immediately of more than 15 milliamperes (containing); 4, load-side generation electric current is excessive or short trouble, rapid open circuit.
2. according to these four kinds of functional characteristics by this circuit breaker called after " NL input regulation comprehensive leakage circuit breaker ".
3. as shown in accompanying drawing Fig. 1, this contrive equipment is divided into two large divisions, and Part I is that phase line center line violates preset rules input and electric appliance casing abnormal belt electrical signal detection and exciting circuit thereof, is called for short allocated circuit 1.
4. Part II is the DZ15LE type residual current circuit breaker (single phase leakage braker) that existing market is sold, and is called for short circuit breaker 2 herein.
5. be divided into again testing circuit 1.1 and exciting circuit 1.2 in allocated circuit 1.
6. its feature comprises: testing circuit is by rectifier diode 1N4007VD 11, rectifier diode 1N4007VD 12, fixed carbon resister (1.62m Ω) R 10, neon bulb aeolight Ne(test pencil neon lamp) and near-earth metal derby (13.2mm × 5.9mm × 0.5mm) GD form, wherein VD 12and R 10series connection, VD 11negative electrode and VD 12negative electrode be connected to each other, VD 11anode connects the neutral line and exports regulation end N 1, VD 12anode connects R 10a certain pin, R 10another pin connects protected electric appliance casing, and a certain pin of neon bulb aeolight Ne is connected with near-earth metal derby GD, and another pin of neon bulb aeolight Ne connects VD simultaneously 11negative electrode and VD 12negative electrode, near-earth metallic plate GD installation parallel with body of wall and be not more than 5 centimetres with body of wall distance, near-earth metallic plate GD can not be communicated with body of wall, neon bulb aeolight Ne light-emitting area immediately photo resistance R 20sensitive surface, the two is without electrical connection, and the two encapsulates closely with black material, accomplishes air tight not light leak, in case UV light and surrounding influence of moisture.
7. exciting circuit 1.2 is by halfwave rectifier diode 1N4007VD 21,halfwave rectifier diode (1N4007) VD 22, rectifier diode 1N4007VD 23, photo resistance R 20(cadmium sulfide (CdS) photo resistance ￠ 5mm), current limliting divider resistance resistance R 21and R 22, divider resistance R 23(24K Ω), bypass condenser C 2(50V, 0.33 μ F), one-way SCR (BT1690) T 2, circuit breaker 2 zero-sequence transformer adds around primary coil L 2, low frequency choke induction L 5composition, wherein rectifier diode 1N4007VD 23negative electrode ,r 20, R 21, R 22mutual series connection, diode 1N4007VD 23anode connect halfwave rectifier diode 1N4007VD 21anode, R 21another pin connects one-way SCR T 2control pole G, R 23and C 2be connected in parallel on one-way SCR T 2control G and negative electrode K between, VD 11,vD 21,vD 23the anode of three connects neutral line input regulation end N jointly 1, VD 22anode and one-way SCR T 2negative electrode K connects, VD 22negative electrode and circuit breaker zero-sequence transformer is elementary adds coiling L 2and low frequency choke induction L 5be in series, L 2another pin and phase line export and specify to hold S 1be connected.
8. more than, the 7th section of described element is with unidirectional k controllable silicon T 2for core, composition switching circuitry.
9. circuit breaker 2 is the existing single-phase circuit breaker product of producer, in this device, the left end of its mains input side is held S as phase line input regulation, and its load outlet side left end, as neutral line input regulation end N, correspondingly exports as phase line and specifies end S by right-hand member 1, right-hand member exports regulation end N as the neutral line 1.
CN201510088295.7A 2015-02-26 2015-02-26 NL input stipulation comprehensive residual-current circuit breaker Pending CN104701835A (en)

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CN201510088295.7A CN104701835A (en) 2015-02-26 2015-02-26 NL input stipulation comprehensive residual-current circuit breaker

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Application Number Priority Date Filing Date Title
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201243203Y (en) * 2008-07-25 2009-05-20 比亚迪股份有限公司 Safety protection device for electric appliance
CN101459302A (en) * 2008-12-26 2009-06-17 钱加灿 All-purpose leakage protection plug for ground wire live trip
CN101651325A (en) * 2008-08-15 2010-02-17 上海益而益电器制造有限公司 Electric leakage detection protector
CN201478785U (en) * 2009-04-30 2010-05-19 杨树昌 Multifunctional zero interruption leakage protective switch
CN101950895A (en) * 2010-08-06 2011-01-19 浙江万盛电气有限公司 Leakage protection socket with reverse wiring and end of life detection function
CN103872643A (en) * 2014-03-18 2014-06-18 广州市博达电子科技有限公司 Anti electric wall circuit for leakage protection switch and application of the same

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201243203Y (en) * 2008-07-25 2009-05-20 比亚迪股份有限公司 Safety protection device for electric appliance
CN101651325A (en) * 2008-08-15 2010-02-17 上海益而益电器制造有限公司 Electric leakage detection protector
CN101459302A (en) * 2008-12-26 2009-06-17 钱加灿 All-purpose leakage protection plug for ground wire live trip
CN201478785U (en) * 2009-04-30 2010-05-19 杨树昌 Multifunctional zero interruption leakage protective switch
CN101950895A (en) * 2010-08-06 2011-01-19 浙江万盛电气有限公司 Leakage protection socket with reverse wiring and end of life detection function
CN103872643A (en) * 2014-03-18 2014-06-18 广州市博达电子科技有限公司 Anti electric wall circuit for leakage protection switch and application of the same

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Application publication date: 20150610