CN1610203A - Anti-electric shock protector - Google Patents
Anti-electric shock protector Download PDFInfo
- Publication number
- CN1610203A CN1610203A CN 200410046889 CN200410046889A CN1610203A CN 1610203 A CN1610203 A CN 1610203A CN 200410046889 CN200410046889 CN 200410046889 CN 200410046889 A CN200410046889 A CN 200410046889A CN 1610203 A CN1610203 A CN 1610203A
- Authority
- CN
- China
- Prior art keywords
- circuit
- ground
- zero line
- power supply
- electric shock
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000001012 protector Effects 0.000 title claims description 38
- 241001465754 Metazoa Species 0.000 claims description 14
- 238000001514 detection method Methods 0.000 claims description 14
- 230000007935 neutral effect Effects 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 6
- 230000006698 induction Effects 0.000 claims description 5
- 230000005611 electricity Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 206010000369 Accident Diseases 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000035807 sensation Effects 0.000 description 2
- 241000282376 Panthera tigris Species 0.000 description 1
- 238000012271 agricultural production Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000034994 death Effects 0.000 description 1
- 231100000517 death Toxicity 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Images
Landscapes
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The electric shock preventer includes dynamic impedance unit, current detecting circuit, rectifier circuit, zero line failure signal output circuit, zero line failure detecting circuit, timing tripping circuit, light alarm circuit and sound alarm circuit. The present invention may be used to avoid electric shock accident, fire caused by short circuit in the power network and power network collapse caused by short circuit. In power network fault, it will give out sound and light warning for electrician to treat and cut off power supply automatically after some time for un-treated fault.
Description
Technical field
The present invention relates to the safety guard of power network circuit, particularly electric Shock protector, is to prevent that personal electric shock injures and deaths and the single-phase shorted to earth of power network from causing fire and equipment breakdown.
Background technology
Electricity invention 100 for many years for Human's production, life bring great convenience, has promoted world industry revolution for the second time.But undeniablely be, can bring very big harm to human life's property if use or protect improperly.The people stands on the ground, touch low voltage electric network and high-voltage fence and supergrid in the water all can damage accident.The fire damage that the circuit single-phase short circuit is caused is also very surprising, causes people's psychology that electricity is had great frightened sensation, looks electricity and is electric-tiger, and tiger must not touch.Therefore people have used a lot of methods to manage, and strive safety utilization of electric power, but effect are still not very good.As in 380 volts/220 volts electrical networks, using existing electric leakage protector just can not produce a desired effect fully.The operation principle of electric leakage protector refers to electrical network in case leak electricity, and electric leakage protector trips to cut off the electricity supply with regard to command switch and protects personal safety.Sometimes not that the people gets an electric shock, but the blowing and raining branch is run into electric wire or other reason grid power leakage, the same command switch tripping operation of electric leakage protector, cause many mistrip accidents, have a strong impact on normal work of industrial and agricultural production and national defense construction and the people and household electricity, the electrician often meets at dead of night under the pitch-dark situation of blowing and raining and goes to send to the switchgear house far away of leaving home, sometimes the electrician send behind the electricity on the way home, the leakage tripping phenomenon takes place again in electrical network, so the electrician is fed up with to electric leakage protector, do not want to use, sometimes the leakage switch that installs has all been cancelled, so often cause the accident of getting an electric shock and dying.Particularly in the rural area, this situation is more.
Summary of the invention
The purpose of this invention is to provide electric Shock protector, by the use in electrical network, casualty accident can not take place when people or other animal stand on the ground, touch 380 volts/220 volts of low voltage electric networks and 3 kilovolts-60 kilovolts of high-voltage fences and supergrid 110-220 kilovoltage grade in the water, and can accomplish: the electrical network shorted to earth can the breaking out of fire accident; The electrical network shorted to earth can not cause electric network from collapsing, causes the wide geographic area power outage; Electrical network is convenient to not interruption maintenance, guarantees normal power supply; Power grid construction reduces can save substantial contribution to the ground level (distance) and the class of insulation; Remove the fear sensation of people's psychology to electric-tiger.
It comprises that motional impedance device 11, current detection circuit 12, rectification circuit 13, zero line fall on the ground signal output apparatus 14, zero line falls on the ground testing circuit 15, timing trip circuit 17, light warning circuit 18 and sound warning circuit 19;
Described rectification circuit 13 be one for the other parts circuit provides the rectification circuit of dc power supply, any one in its ac input end and electrical network a, b, the c three-phase is connected mutually;
Described motional impedance device 11 is motional impedance devices that are connected between power network wiring end and the electrical network ground wire, and when transformer or generator secondary side employing star connection, described power network wiring end is a neutral point; When transformer or generator secondary side employing delta connection, described power network wiring end is the phase line leading-out terminal;
Described current detection circuit 12 is current-sensing circuits; Two inputs of this current detection circuit 12 and the current circuit of described motional impedance device 11 constitute induction and detect the loop, output in two outputs with exchange or dc power supply terminal is connected; Another output is connected with described timing trip circuit 17, light warning circuit 18 and the power supply side of sound warning circuit 19, constitutes first power supply side;
It is induction by current testing circuits that described zero line falls on the ground testing circuit 15; Two inputs that this zero line falls on the ground testing circuit 15 are connected with ground wire with the electrical network zero line respectively, and its output constitutes zero line and falls on the ground alarm signal output ends;
The input that described zero line falls on the ground signal output apparatus 14 is connected with the output that described zero line falls on the ground testing circuit 15, output that this zero line falls on the ground signal output apparatus 14 with exchange or dc power supply terminal is connected, another output is connected with described timing trip circuit 17, light warning circuit 18 and the power supply side of sound warning circuit 19, constitutes the second source feeder ear;
Described timing trip circuit 17 is made of a time relay, and this time relay is serially connected between the power supply side and power supply ground of described timing trip circuit 17, the into electrical network trip(ping) circuit of connecting of two outputs; After receiving alarm signal, this timing trip circuit 17 regularly trips at official hour, cuts off the mains supply loop;
The light Display and Alarm Circuit that described light warning circuit 18 is made of two luminescent devices, first luminescent device of this light warning circuit 18 is connected between first power supply side and power supply ground of described current detection circuit 12, constitutes the light warning circuit that live wire falls on the ground or gets an electric shock; Second luminescent device of this light warning circuit 18 is connected on described zero line and falls on the ground and constitute zero line between the second source feeder ear of signal output apparatus 14 and the power supply ground and fall on the ground the light warning circuit;
Described audible alarm circuit 19 is made of a microphone device, and this microphone device is connected between the power supply side and power supply ground of audible alarm circuit 19, the alarm signal of sounding during energising.
When transformer or generator secondary side employing star connection, electric Shock protector of the present invention is serially connected between the neutral point and electrical network ground wire of described power network wiring end, electric Shock protector zero line terminals link to each other with the electrical network zero line.If zero line falls on the ground, zero line and ground wire closure make the zero line of electric Shock protector fall on the ground testing circuit 15 and produce zero lines and fall on the ground alarm signal, and two output closures that zero line falls on the ground signal output apparatus 14 make second source feeder ear and power connection; If people (or other animal) stands in when touching low pressure, high pressure, supergrid phase line in ground, the water, the electric current of electrical network flows through human body, inflow the earth, process earth connection, flows into electric Shock protector, get back to zero line and enough become the closed-loop path to neutral point, the voltage that consumes on the motional impedance device 11 is gone up the voltage that consumes much larger than the human or animal, making human or animal's voltage on one's body is safe voltage, has guaranteed life security and power grid security; On the other hand, current detection circuit 12 makes closed first power supply side of two output and power connection because its input has electric current to flow through.More than two kinds of situations trip circuit 17, light warning circuit 18 and sound warning circuit 19 are started working.
When transformer or generator secondary side employing delta connection, electric Shock protector of the present invention is connected between electrical network phase line and the electrical network ground wire, its course of work is identical with star connection warning operation principle.
Therefore, the electric Shock protector of the application of the invention can prevent the generation of electric shock accidents effectively, safeguards power grid security simultaneously.
Description of drawings
Fig. 1 is a circuit theory composition of the present invention;
Fig. 2 is used for the star connection schematic diagram for the present invention;
Fig. 3 is used for the delta connection schematic diagram for the present invention.
Embodiment
As shown in Figure 1, it comprises that motional impedance device 11, current detection circuit 12, rectification circuit 13, zero line fall on the ground signal output apparatus 14, zero line falls on the ground testing circuit 15, timing trip circuit 17, light warning circuit 18 and sound warning circuit 19;
Described rectification circuit 13 be one for the other parts circuit provides the rectification circuit of dc power supply, any one in its ac input end and electrical network a, b, the c three-phase is connected mutually;
Described motional impedance device 11 is motional impedance devices that are connected between power network wiring end and the electrical network ground wire, and when transformer or generator secondary side employing star connection, described power network wiring end is a neutral point; When transformer or generator secondary side employing delta connection, described power network wiring end is the phase line leading-out terminal;
Described current detection circuit 12 is current-sensing circuits; Two inputs of this current detection circuit 12 and the current circuit of described motional impedance device 11 constitute induction and detect the loop, output in two outputs with exchange or dc power supply terminal is connected; Another output is connected with described timing trip circuit 17, light warning circuit 18 and the power supply side of sound warning circuit 19, constitutes first power supply side;
It is induction by current testing circuits that described zero line falls on the ground testing circuit 15; Two inputs that this zero line falls on the ground testing circuit 15 are connected with ground wire with the electrical network zero line respectively, and its output constitutes zero line and falls on the ground alarm signal output ends;
The input that described zero line falls on the ground signal output apparatus 14 is connected with the output that described zero line falls on the ground testing circuit 15, output that this zero line falls on the ground signal output apparatus 14 with exchange or dc power supply terminal is connected, another output is connected with described timing trip circuit 17, light warning circuit 18 and the power supply side of sound warning circuit 19, constitutes the second source feeder ear;
Described timing trip circuit 17 is made of a time relay, and this time relay is serially connected between the power supply side and power supply ground of described timing trip circuit 17, the into electrical network trip(ping) circuit of connecting of two outputs; After receiving alarm signal, this timing trip circuit 17 regularly trips at official hour, cuts off the mains supply loop;
The light Display and Alarm Circuit that described light warning circuit 18 is made of two luminescent devices, first luminescent device of this light warning circuit 18 is connected between first power supply side and power supply ground of described current detection circuit 12, constitutes the light warning circuit that live wire falls on the ground or gets an electric shock; Second luminescent device of this light warning circuit 18 is connected on described zero line and falls on the ground and constitute zero line between the second source feeder ear of signal output apparatus 14 and the power supply ground and fall on the ground the light warning circuit;
Described audible alarm circuit 19 is made of a microphone device, and this microphone device is connected between the power supply side and power supply ground of audible alarm circuit 19, the alarm signal of sounding during energising.
Fig. 2 is that the present invention is used for the star connection schematic diagram, magnetoelectricity alternation generator or power transformer secondary side-star connection neutral point be zero line 5 with electrical network ground wire 2 between be connected in series this electric Shock protector 3, electric Shock protector 3 working power lines 8 are connected in parallel on the phase line of secondary side outlet (high-voltage fence is through voltage transformer).When people (or other animal) stands on the ground, when touching low pressure, high pressure, supergrid phase line in the water, the electric current of electrical network flows through human body 1, flows into the earth, through earth connection 2, flow into electric Shock protector 3, get back to zero line 5 and enough become the closed-loop path to neutral point.In the processing of moment with regard to automatic adjustment circuit voltage of switching on, the outlet of star connection phase coil 6 is consumed by electric Shock protector 3 most of voltage of voltage between the zero line 5 and phase line direct-to-ground capacitance voltage.The voltage that people 1 (other animal) is born is safe voltage, has protected the life security of people (other animal) for this reason.7 is switch among Fig. 2.
Fig. 3 is the delta connection schematic diagram.Connect an electric Shock protector 3 between magnetoelectricity alternation generator or every phase line of power transformer secondary side output and electrical network ground wire, working power is connected in parallel on the phase line of secondary side outlet (high-voltage fence is through voltage transformer).When people 1 stands on the ground, when touching low pressure, high pressure, supergrid phase line in the water, the electric current of electrical network phase line flows through human body 1 and flows into the earth, process earth connection 2, flow into electric Shock protector 3, get back to generator or Circuit Fault on Secondary Transformer-delta connection phase coil tail shelves, enough become the closed-loop path.In the processing of moment with regard to automatic adjustment circuit voltage of switching on, 20 grades of heads of triangle coil are consumed by electric Shock protector 3 shelves tail voltage and the most of voltage of phase line direct-to-ground capacitance voltage.The voltage that people 1 is born is safe voltage, has just protected people 1 life security for this reason.7 is switch among Fig. 3.
When transformer or generator secondary side employing star connection, electric Shock protector of the present invention is serially connected between the neutral point and electrical network ground wire of described power network wiring end, the zero line terminals link to each other with the electrical network zero line.If zero line falls on the ground, zero line and ground wire closure make zero line fall on the ground testing circuit 15 generation zero lines and fall on the ground alarm signal, and two output closures that zero line falls on the ground signal output apparatus 14 make second source feeder ear and power connection; If people (or other animal) stands in when touching low pressure, high pressure, supergrid phase line in ground, the water, the electric current of electrical network flows through human body, inflow the earth, process earth connection, flows into electric Shock protector, get back to zero line and enough become the closed-loop path to neutral point, the voltage that consumes on the motional impedance device 11 is gone up the voltage that consumes much larger than the human or animal, making human or animal's voltage on one's body is safe voltage, has guaranteed life security and power grid security; On the other hand, current detection circuit 12 makes closed first power supply side of two output and power connection because its input has electric current to flow through.More than two kinds of situations trip circuit 17, light warning circuit 18 and sound warning circuit 19 are started working.
When transformer or generator secondary side employing delta connection, electric Shock protector of the present invention is connected between electrical network phase line and the electrical network ground wire, its course of work is identical with star connection warning operation principle.
Therefore, by using electric Shock protector, can reach such effect: a, electrical network can the breaking out of fire accident to ground short circuit; Electric network from collapsing can not take place and cause large area blackout in b, electrical network phase line shorted to earth; C, be convenient to not interruption maintenance, guarantee the electrical network normal power supply; D, power grid construction can reduce the distance to the ground and the class of insulation, can save substantial contribution; E, to reduce the people frightened to the psychology of electricity.F, electric Shock protector can send that language is informed, the light caution, inform that the electrician comes the in-situ processing fault rapidly, the electrician does not handle if (determine the time according to the line voltage grade) within a certain period of time, and electric Shock protector just instruction is cut off the electricity supply
The advantage of electric Shock protector of the present invention is: refer to that people or other animal stand on the ground, touch 380 volts/220 volts of low voltage electric networks and 3 kilovolts-60 kilovolts of high-voltage fences and superhigh pressure 110-220 kilovoltage in the water and casualty accident can not take place.
Claims (3)
1, electric Shock protector, it comprises one for the other parts circuit provides the rectification circuit (13) of dc power supply, any one in the ac input end of this rectification circuit (13) and electrical network a, b, the c three-phase is connected mutually; It is characterized in that:
It comprises that also motional impedance device (11), current detection circuit (12), zero line fall on the ground signal output apparatus (14), zero line falls on the ground testing circuit (15), timing trip circuit (17), light warning circuit (18) and sound warning circuit 19;
Described motional impedance device (11) is a motional impedance device that is connected between power network wiring end and the electrical network ground wire, and when transformer or generator secondary side employing star connection, described power network wiring end is a neutral point; When transformer or generator secondary side employing delta connection, described power network wiring end is the phase line leading-out terminal;
Described current detection circuit (12) is a current-sensing circuit; Two inputs of this current detection circuit (12) and the current circuit of described motional impedance device (11) constitute induction and detect the loop, output in two outputs with exchange or dc power supply terminal is connected; Another output is connected with described timing trip circuit (17), light warning circuit (18) and the power supply side of sound warning circuit (19), constitutes first power supply side;
It is a current-sensing circuit that described zero line falls on the ground testing circuit (15); Two inputs that this zero line falls on the ground testing circuit (15) are connected with ground wire with the electrical network zero line respectively, and its output constitutes zero line and falls on the ground alarm signal output ends;
The input that described zero line falls on the ground signal output apparatus (14) is connected with the output that described zero line falls on the ground testing circuit (15), output that this zero line falls on the ground signal output apparatus (14) with exchange or dc power supply terminal is connected, another output is connected with described timing trip circuit (17), light warning circuit (18) and the power supply side of sound warning circuit (19), constitutes the second source feeder ear;
Described timing trip circuit (17) is made of a time relay, and this time relay is serially connected between the power supply side and power supply ground of described timing trip circuit (17), and two outputs are connected on the electrical network trip(ping) circuit; After receiving alarm signal, this timing trip circuit (17) regularly trips at official hour, cuts off the mains supply loop;
The light Display and Alarm Circuit that described light warning circuit (18) is made of two luminescent devices, first luminescent device of this light warning circuit (18) is connected between first power supply side and power supply ground of described current detection circuit (12), constitutes the light warning circuit that live wire falls on the ground or gets an electric shock; Second luminescent device of this light warning circuit (18) is connected on described zero line and falls on the ground and constitute zero line between the second source feeder ear of signal output apparatus (14) and the power supply ground and fall on the ground the light warning circuit;
Described audible alarm circuit (19) is made of a microphone device, and this microphone device is connected between the power supply side and power supply ground of audible alarm circuit (19), the alarm signal of sounding during energising.
2, the purposes of electric Shock protector as claimed in claim 1, it is characterized in that described electric Shock protector is serially connected between neutral point and the electrical network ground wire when magnetoelectricity alternation generator or power transformer secondary side employing star connection, when people or other animal stand on the ground, when touching low pressure, high pressure, supergrid phase line in the water, the electric current of electrical network flows through human body, inflow the earth, process electrical network ground wire, flows into electric Shock protector, gets back to zero line and enough becomes the closed-loop path to neutral point; Processing at energising moment automatic adjustment circuit voltage; the outlet of star connection phase coil to most of voltage of voltage between the zero line and phase line direct-to-ground capacitance voltage by electric Shock protector consumption; the voltage that people or other animal are born is safe voltage, has protected the life security of people or other animal for this reason.
3, the purposes of electric Shock protector as claimed in claim 1, when it is characterized in that magnetoelectricity alternation generator or power transformer secondary side output adopt delta connection, between every phase line and electrical network ground wire, be connected an electric Shock protector respectively, when the people stands on the ground, when touching low pressure, high pressure, supergrid phase line in the water, the electric current of electrical network phase line flows through human body and flows into the earth, process earth connection, flow into electric Shock protector, get back to generator or Circuit Fault on Secondary Transformer-delta connection phase coil tail shelves, enough become the closed-loop path; Energising moment with regard to the processing of automatic adjustment circuit voltage, by electric Shock protector consumption, the voltage that the people bore is safe voltage to triangle coil shelves head, has just protected people's life security for this reason to most of voltage of shelves tail voltage and phase line direct-to-ground capacitance voltage.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410046889 CN1610203A (en) | 2004-11-03 | 2004-11-03 | Anti-electric shock protector |
| CN 200510113992 CN1773800B (en) | 2004-11-03 | 2005-11-02 | Electric Shock protector |
| CN 200520133983 CN2912061Y (en) | 2004-11-03 | 2005-11-02 | Anti-shock safety device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410046889 CN1610203A (en) | 2004-11-03 | 2004-11-03 | Anti-electric shock protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1610203A true CN1610203A (en) | 2005-04-27 |
Family
ID=34763879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410046889 Pending CN1610203A (en) | 2004-11-03 | 2004-11-03 | Anti-electric shock protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1610203A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008083539A1 (en) * | 2007-01-12 | 2008-07-17 | Lian Electric (Heshan) Technology Development Co. Ltd. | A monitoring type operative protective relay for residual current |
| WO2021093457A1 (en) * | 2019-11-11 | 2021-05-20 | 西安交通大学 | Anti-electric-shock monitoring and protection method and apparatus for low-voltage user end |
-
2004
- 2004-11-03 CN CN 200410046889 patent/CN1610203A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008083539A1 (en) * | 2007-01-12 | 2008-07-17 | Lian Electric (Heshan) Technology Development Co. Ltd. | A monitoring type operative protective relay for residual current |
| WO2021093457A1 (en) * | 2019-11-11 | 2021-05-20 | 西安交通大学 | Anti-electric-shock monitoring and protection method and apparatus for low-voltage user end |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102332699A (en) | Ground wire safety voltage control system | |
| CN103022992A (en) | Feeder ground positioning method based on dispersion zero sequence voltage detection | |
| CN101976815B (en) | Loaded multifunctional protection circuit | |
| CN108183462A (en) | Electrical protection device for electrical equipment and electrical equipment | |
| CN202159961U (en) | Ground wire safe voltage control system | |
| CN101853558B (en) | Cable anti-theft alarm wireless monitoring system | |
| CN104330607B (en) | Alternating current scurries into the detection of straight-flow system and compels to jump device | |
| CN1773800B (en) | Electric Shock protector | |
| CN103683225A (en) | Ground fault protection method of nuclear plant low-voltage power distribution system in all power supply ranges | |
| CN1818686A (en) | Life-stopping intelligent inspection and inspector for leakage protector | |
| CN204008808U (en) | Alternating current is scurried into the detection of straight-flow system and is compeled to jump device | |
| CN1610203A (en) | Anti-electric shock protector | |
| CN2912061Y (en) | Anti-shock safety device | |
| CN211701479U (en) | Constant potential rectifier synthesizes lightning protection device | |
| CN215498243U (en) | Leakage protection system of block terminal | |
| CN203734285U (en) | Zero line disconnection protective device of three-phase power grid | |
| CN213782870U (en) | A three-phase four-wire low-voltage power grid disconnection safety guarantee system | |
| CN103163415B (en) | Adopt the DC power system insulation monitoring and warning device of eccentric bridge technology | |
| CN207424155U (en) | Power failure detection device | |
| CN201540616U (en) | Cable anti-theft alarm wireless monitoring system | |
| CN209986390U (en) | Safety system of electric welding machine | |
| CN201017757Y (en) | Decomposing prevention circuit of transformer device | |
| CN106443355A (en) | Digital type electric power distribution line fault arc detection analysis terminal | |
| CN209215513U (en) | Low-voltage cable automatic short-circuit alarming function device | |
| CN2764034Y (en) | Overcurrent proof safety device for dc power output equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |