CN107910232B - A kind of Intelligent leakage protection switch - Google Patents
A kind of Intelligent leakage protection switch Download PDFInfo
- Publication number
- CN107910232B CN107910232B CN201711361901.3A CN201711361901A CN107910232B CN 107910232 B CN107910232 B CN 107910232B CN 201711361901 A CN201711361901 A CN 201711361901A CN 107910232 B CN107910232 B CN 107910232B
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- button
- controller
- protective device
- earth leakage
- terminal
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/02—Housings; Casings; Bases; Mountings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/08—Terminals; Connections
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/24—Electromagnetic mechanisms
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
- H02H3/32—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points in different conductors of a single system, e.g. of currents in go and return conductors
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention discloses a kind of Intelligent leakage protection switchs, including earth leakage protective device, protection controller, by-pass switch with motor-operating mechanism.Earth leakage protective device is foundation structure of the invention, to realize electric leakage and overload protection；Protect controller to realize not to user have a power failure in the case where creepage protection function is tested；As bypass to customer power supply when by-pass switch is to realize that earth leakage protective device tests creepage protection function.The present invention does not have a power failure when having test earth leakage protective device creepage protection function, and can periodically detect the beneficial effect of creepage protection function automatically.
Description
Technical field
The present invention relates to the protective relaying devices in power distribution power supply technique field, are particularly a kind of Intelligent electric leakages
Protective switch.
Background technique
In daily life either in plant power supply and distribution system, the application of earth leakage protective device is very universal.Earth leakage protective
Device is to leak electricity detecting or in the case where people's electric shock, disconnect earth leakage circuit-breaker, make one a kind of guarantor out of danger
Protection unit.Earth leakage protective device generally has two ways, one is the switch of leakage protection module and overcurrent protection module one,
One is individual leakage tripping devices, drive overcurrent protective switch separating brake with its interlocking lever.Application No. is 201720127633.8
A kind of leakage tripping device be exactly a kind of individual leakage tripping device.Application No. is a kind of 201310420543.4 leakage, breakings
Device is exactly a kind of integrated earth leakage protective device.
In the application process of earth leakage protective device, carrying out leakage function test is a well-known common sense, and is being leaked
During electric protection functional test, the separating brake of breaker or earth leakage protective device is an essential process, therefore meeting
Cause user side to have a power failure to bring inconvenience to electricity consumption.And in the factory, because detection leakage function, which have a power failure, to generate production
It influences, reduces production efficiency.Hidden danger without detect and can generate to earth leakage protective device safety utilization of electric power.Therefore design one
Kind, which can detect a kind of whether normal Intelligent leakage protection switch that can guarantee that user side does not have a power failure again of creepage protection function, to be become
A kind of urgent demand.
Summary of the invention
The technical problem to be solved by the present invention is providing a kind of Intelligent leakage protection switch, there is periodically automatic inspection
Creepage protection function is surveyed, and keeps the function of user side normal power supply in detection process.
The technical solution of the technical problem to be solved in the present invention is: a kind of Intelligent leakage protection switch, including with electronic
The earth leakage protective device of operating mechanism, it is characterised in that: further include the shunting device being fixedly connected with earth leakage protective device, the bypass
Device includes the protection controller and by-pass switch to link together.The protection controller includes integrally formed shell, institute
Enclosure interior is stated equipped with control circuit.There are two protrude connecting rod, the protrusion for the shell side adjacent with earth leakage protective device
Connecting rod is hollow structure and communicates with enclosure interior that two protrusion connecting rods are respectively the first and second protrusion connecting rod, and the protrusion connects
Bar is located at the top of earth leakage protective device, and protrudes up and down two planes of the connecting rod close to one end of earth leakage protective device and be equipped with transmission
Through-hole, the protrusion connecting rod inside are equipped with Electromagnetic push-button, and the Electromagnetic push-button inside the first protrusion connecting rod is test Electromagnetic push-button, the
Electromagnetic push-button inside two protrusion connecting rods is to reset Electromagnetic push-button, the transmission through-hole and earth leakage protective device of the first protrusion connecting rod
The position of testing button coincide with the upper and lower, the position of the reset button of the transmission through-hole and earth leakage protective device of the second protrusion connecting rod
It sets and coincides with the upper and lower.The front and rear of the shell is equipped with major loop terminal, and the upside of shell front is equipped with control terminal, described
The major loop terminal of front is input terminal, and the main circuit terminal attached bag at the rear portion includes line terminals, main road lead terminal, bypass
Lead terminal, the control terminal include bypassing shutting-brake control terminal, bypass separating brake control terminal, main road shutting-brake control terminal,
The major loop terminal and control terminal are the terminal of two point.The Electromagnetic push-button includes button axle, adsorpting iron plate, electromagnetism
Coil, spring, the button axle is plugged in transmission through-hole and the upper and lower ends of button axle are respectively and above and below protrusion connecting rod
Plane is concordant, and the electromagnetic coil is set in the lower part of button axle, and is fixedly connected with the inside of protrusion connecting rod, the absorption
Iron plate is located at the top of electromagnetic coil and is fixedly connected with button axle, the spring be set to adsorpting iron plate and electromagnetic coil it
Between, and the both ends of spring are fixedly connected with adsorpting iron plate, electromagnetic coil respectively.The by-pass switch is contactor.The control
Circuit processed includes power module, controller, bypass closing relay, bypass separating brake relay, main road closing relay, the side
Coil windings, the coil windings of main road closing relay and the controller electrical connection of road splitting or integrating lock relay, the test electricity
The electromagnetic coil of magnetic button, the electromagnetic coil for resetting Electromagnetic push-button and controller electrical connection.The top of the shell is equipped with hand
Dynamic bypass switch knob and manual bypass opening button, the manual bypass switch knob are normally opened button, the manual bypass
Opening button is normally closed button, and the surface of the shell of the upper surface and protection controller of the manual bypass splitting or integrating lock button is flat
Together.The upper surface of the shell is equipped with multiple malfunction indicator lamp, and the malfunction indicator lamp is light emitting diode, and and controller
Electrical connection.The input terminal of the power module and input terminal zero, firewire electrical connection, the output end of power module and control
Device electrical connection processed.The both ends of the normally opened contact of the bypass closing relay and the two-end-point of bypass shutting-brake control terminal are electrical
Connection, the manual bypass switch knob with bypass closing relay normally opened contact and connect, the manual bypass opening button
With the both ends for being attempted by bypass separating brake control terminal after the normally-closed contact series connection of bypass separating brake relay, the main road combined floodgate relay
The both ends of the normally opened contact of device and the two-end-point electrical connection of main road shutting-brake control terminal.The power end of the earth leakage protective device and
Input terminal simultaneously connects, and the load end and main road lead terminal of earth leakage protective device simultaneously connect, inside housings main road lead terminal, bypass
Lead terminal and outlet terminal simultaneously connect.The control power supply of the motor-operating mechanism and zero firewire of input terminal connect, electronic
The shutting-brake control terminal and main road shutting-brake control terminal of operating mechanism are electrically connected.The coil windings and bypass of the by-pass switch
It is attempted by after shutting-brake control terminal series-shunt between zero firewire of input terminal, the bypass separating brake control terminal and by-pass switch
It shutting-brake control terminal and is connect after normally opened contact series connection with bypass, the end of incoming cables of the main contacts of the by-pass switch and input terminal electricity
Gas connection, the leading-out terminal of the main contacts of by-pass switch and bypass lead terminal electrical connection.The leading-out terminal of the protection controller
Input terminal and the power supply grid electrical connection of controller are protected in son and user load electrical connection.
Preferably, the by-pass switch is the miniature circuit breaker equipped with motor-operating mechanism.
Preferably, the top of the electromagnetic coil of the Electromagnetic push-button is equipped with button switch, whether to detect adsorpting iron plate
Movement, the button switch tested in Electromagnetic push-button are test detection button switch, and resetting the button switch inside Electromagnetic push-button is
Reset detection button switch, the test detection button switch, reset detection button switch and controller are electrically connected.
Preferably, main road Current Mutual Inductance is arranged on the firewire connecting line between the outlet terminal and main road lead terminal
Device, leading-out terminal and the controller electrical connection of the main road current transformer, between the outlet terminal and bypass lead terminal
Firewire connecting line on be arranged with by-pass current mutual inductor, the leading-out terminal and controller of the by-pass current mutual inductor electrically connect
It connects, the master, by-pass current mutual inductor are to the touching by detecting whether to determine earth leakage protective device, by-pass switch there are electric current
Whether point disconnects.
Preferably, electric leakage signal relay, the coil of the electric leakage signal relay are equipped with inside the earth leakage protective device
Winding is in parallel with the electric leakage tripping coil of earth leakage protective device, and the control terminal of the protection controller further includes detection of electrical leakage end
Son, detection of electrical leakage terminal and controller electrical connection, the normally opened contact of the electric leakage signal relay are controlled by conducting wire and protection
The detection of electrical leakage terminal of device processed is electrically connected.
Preferably, the lower part of the transmission through-hole is equipped with limited block, the fixed company of the inner wall of the limited block and shell
It connects.
Preferably, the control circuit is equipped with communication module, the communication module and controller electrical connection.
The application method of a kind of Intelligent leakage protection switch, which is characterized in that including following methods:
Method 1 carries out the method for manual test creepage protection function in the case where earth leakage protective device works normally:
Step 1.1, manual bypass switch knob is pressed, by-pass switch is connected；
Step 1.2, the button axle for pressing test Electromagnetic push-button is tested the key glides downward of Electromagnetic push-button and then is driven
The testing button of earth leakage protective device, earth leakage protective device detect that testing button presses rear starting tripping movement；
Step 1.3, it checks whether earth leakage protective device trips, earth leakage protective device failure is illustrated if not tripping, and carry out
Check and replace earth leakage protective device；If tripping, illustrate that earth leakage protective device function is normal and executes step 1.4；
Step 1.4, the button axle for resetting Electromagnetic push-button is pressed, the key glides downward of Electromagnetic push-button is resetted and then is driven
The reset button of earth leakage protective device, earth leakage protective device detect that reset button is pressed rear earth leakage protective device and resetted；
Step 1.5, it is closed earth leakage protective device；
Step 1.6, manual bypass opening button is pressed, by by-pass switch disjunction, completes test.
Method 2, the control method of periodically automatic test leakage function:
It is equipped with time timer unit inside controller, started autorun after one month time cycle,
Step 2.1, the coil windings electrification of controller control bypass closing relay, bypasses the normally opened touching of closing relay
The main contacts of point closure, by-pass switch is connected；
Step 2.2, whether the main contacts of controller control detection by-pass switch is connected, if be not switched on, if controller
Light malfunction indicator lamp；If it is switched on, thening follow the steps 2.3；The method of detection is that controller detection by-pass current mutual inductor is
It is no to have electric current, if there is electric current then illustrates to have turned on, illustrate to be not switched on if without electric current；
Step 2.3, controller connects the electromagnetic coil of test Electromagnetic push-button, test the adsorpting iron plate of Electromagnetic push-button by
Slide downward and then the button axle of drive test Electromagnetic push-button, which move down and press electric leakage, under the suction of electromagnetic coil protects
Protect the testing button of device；
Step 2.4, whether controller detection test detection button switch is closed, and illustrates to test electromagnetism if not being closed
Button is not carried out the instruction of controller and controller lights malfunction indicator lamp；If closure thens follow the steps 2.5；
Step 2.5, whether the switch contact of controller detection earth leakage protective device disconnects, specifically, controller detects main road
Whether current transformer has electric current, and if there is electric current illustrates that earth leakage protective device contact is not turned off, and controller lights failure
Indicator light；Illustrate that earth leakage protective device is already off if detecting no electric current, and executes step 2.6；
Step 2.6, controller connects the electromagnetic coil for resetting Electromagnetic push-button, and the button axle for resetting Electromagnetic push-button is adsorbed iron
Piece drives and moves downward, and then presses the reset button of earth leakage protective device；
Step 2.7, whether controller detection reset detection button switch is closed, and illustrates to reset electromagnetism if not being closed
Button executes the instruction failure of controller, and controller lights malfunction indicator lamp；If closure thens follow the steps 2.8；
Step 2.8, the coil windings electrification of controller control main road closing relay, the normally opened touching of main road closing relay
Point closure, motor-operating mechanism, which detects, controls earth leakage protective device combined floodgate after the normally opened contact of main road closing relay is closed；
Step 2.9, whether controller detection earth leakage protective device closes a floodgate, specifically, controller detects main road current transformer
Whether there is electric current, if there is electric current illustrates that earth leakage protective device has closed a floodgate, and execute step 2.10, if detected without electricity
Stream then illustrates that earth leakage protective device closes a floodgate and fails, and controller lights malfunction indicator lamp；
Step 2.10, controller control bypass separating brake relay coil winding electrification, bypasses the normally closed touching of separating brake relay
Point disconnects, and then makes the coil windings power loss of by-pass switch 3, disconnects by-pass switch main contacts；
Step 2.11, whether the main contacts of controller detection by-pass switch disconnects, specifically, controller detects by-pass current
Whether mutual inductor has electric current, and if there is electric current illustrates by-pass switch failure, and controller lights malfunction indicator lamp, if do not had
Electric current then illustrates that the main contacts of by-pass switch is already off, this detects creepage protection function automatically terminates, and recovered
To normal condition.
Preferably, in the method 1, during execution step 1.1 arrives step 1.6, controller also detects electric leakage letter
Whether the normally opened contact of number relay is closed, if detecting the normally opened contact closure of electric leakage signal relay, controller if is sent out
The instruction for disconnecting by-pass switch out disconnects the main contacts of by-pass switch, if not detecting the normally opened of electric leakage signal relay
Contact closure then normally executes step 1.1 and arrives step 1.5；
In the method 1, after executing step 1.6, whether controller detection by-pass current mutual inductor has electric current, if
There is electric current then to illustrate that the main contacts of by-pass switch is not turned off, by-pass switch is there are failure, and controller lights malfunction indicator lamp, such as
Fruit does not have electric current then to illustrate that the main contacts of by-pass switch is already off, and equipment is restored to normal condition.
Preferably, in the method 2, execute step 2.2 arrive step 2.9 during, controller also detect leak electricity after
Whether the normally opened contact of electric appliance is closed, and controller is issued to disconnect bypassing and be opened if the normally opened contact of electric leakage signal relay closure
The instruction of pass disconnects the main contacts of by-pass switch, if not detecting that the normally opened contact of electric leakage signal relay is closed just
It often executes step 2.2 and arrives step 2.9.
The beneficial effects of the present invention are:
1, the beneficial effect that user side does not have a power failure when the invention Intelligent leakage protection switch has detection creepage protection function；
2, the invention Intelligent leakage protection switch has in detection of electrical leakage after earth leakage protective device separating brake, and by-pass switch has
Detection leaks electricity and disconnects the beneficial effect of by-pass switch automatically；
3, for the invention intelligent electricity leakage protector during detection of electrical leakage, by-pass switch has the function of overload protection；
4, the invention Intelligent leakage protection switch has the beneficial effect of periodically automatic detection creepage protection function.
Detailed description of the invention
Fig. 1 is a kind of a kind of schematic diagram of embodiment of Intelligent leakage protection switch of the present invention,
Fig. 2 is a kind of a kind of main view of the protection controller of embodiment of Intelligent leakage protection switch of the present invention,
Fig. 3 is a kind of a kind of top view of the protection controller of embodiment of Intelligent leakage protection switch of the present invention,
Fig. 4 is A sectional view in Fig. 2,
Fig. 5 is B sectional view in Fig. 2,
Fig. 6 is a kind of a kind of electrical connection diagram of embodiment of Intelligent leakage protection switch of the present invention,
Fig. 7 is a kind of a kind of protection controller internal electric wiring of embodiment of Intelligent leakage protection switch of the present invention
Figure,
Fig. 8 is a kind of a kind of circuit of the bypass leakage detection function of embodiment of Intelligent leakage protection switch of the present invention
Figure.
In figure:
11, motor-operating mechanism, 12, earth leakage protective device,
2, protection controller, 3, by-pass switch,
21, input terminal, 23, outlet terminal, 24, main road lead terminal, 25, bypass lead terminal, 26, bypass combined floodgate control
Terminal processed, 27, bypass separating brake control terminal, 28, main road shutting-brake control terminal, 29, detection of electrical leakage terminal,
41, the first protrusion connecting rod, the 42, second protrusion connecting rod, 51, test Electromagnetic push-button, 52, reset Electromagnetic push-button,
61, button axle, 62, adsorpting iron plate, 63, electromagnetic coil, 64, spring, 65, limited block,
71, power module, 72, controller,
K1, bypass closing relay, K2, bypass separating brake relay, K3, main road closing relay, K4, electric leakage signal relay
Device,
S1, test detection button switch, S2, reset detection button switch, SH, manual bypass switch knob, SF, manually side
Road opening button, L1, main road current transformer, L2, by-pass current mutual inductor.
Specific embodiment
To keep technical solution of the present invention and beneficial effect clearer, embodiments of the present invention are done further below
Explain in detail.
A kind of Intelligent leakage protection switch as shown in Figure 1, including motor-operating mechanism 11, earth leakage protective device 12 further include
The shunting device being fixedly connected with earth leakage protective device 12, shunting device include that the protection controller 2 to link together and bypass are opened
Close 3.Motor-operating mechanism 11 is a kind of device for controlling circuit-breaker switching on-off.It is disconnected that application No. is 201310220676.7 one kind
The motor-operating mechanism of road device is exactly a kind of motor-operating mechanism for controlling miniature circuit breaker.Application No. is 201410821977.X
A kind of breaker motor-operating mechanism be a kind of breaker of plastic casing motor-operating mechanism.Earth leakage protective device 12 is a kind of inspection
It leaks hunting and electricity and connects a kind of protector for capableing of cut-off breaker, application No. is a kind of 201420143191.2 earth leakage protective devices just
It is a kind of a kind of earth leakage protective device of miniature circuit breaker formula.By-pass switch 3 is a kind of controllable switching device, and common device has
Relay, contactor, switching tube, miniature circuit breaker etc..In the present invention, by-pass switch 3 is a contactor.Contactor refers to
Current induced magnetic field is flowed through using coil in industrial electro, makes contact closure, to reach the electric appliance of control load.Contactor mainly by
Contact system, electromagnetism actuating system, bracket, auxiliary contact and shell (or chassis) composition, contact system include carrying out to load
The main contacts of control and the auxiliary contact of cooperation control and detection.Main contacts is high power switch node, and auxiliary contact include
The normally opened contact and normally-closed contact of low capacity.
Overload protection function when preferably, in order to realize bypass operation, the selection of by-pass switch 3 is with motor-operating mechanism
Miniature circuit breaker.Protecting controller 2 is core of the invention component, has control 12 splitting or integrating lock of earth leakage protective device, control bypass
3 main contacts of switch switches on and off, and controls testing button, reset button, detects overcurrent, the function of electric leakage.
Controller 2 is protected to be used as electrical equipment, for the ease of installing and improving safety, protection controller 2 is equipped with shell
Body is equipped with control circuit in the inside of shell.Due to being equipped with testing button and reset button on the top of earth leakage protective device 12, it is
It realizes the automatic test of equipment and resets, need the corresponding electric mechanism to control above-mentioned two button.Therefore in shell
The body side adjacent with earth leakage protective device 12 is set there are two hollow protrusion connecting rod, and the first protrusion connecting rod 41 and second protrudes connecting rod
42.It is equipped with transmission through-hole in up and down two planes of the protrusion connecting rod close to the end of 12 one end of earth leakage protective device, in protrusion connecting rod
Inside be equipped with Electromagnetic push-button.The testing button of the transmission through-hole and earth leakage protective device 12 of first protrusion connecting rod 41 coincides with the upper and lower.
Electromagnetic push-button inside first protrusion connecting rod 41 is test Electromagnetic push-button 51.The transmission through-hole of second protrusion connecting rod 42 and electric leakage are protected
The reset button of shield device 12 coincides with the upper and lower, and the Electromagnetic push-button inside the second protrusion connecting rod 42 is to reset Electromagnetic push-button 52.
Test Electromagnetic push-button 51 resets electromagnetism and presses to realize that Electronic control presses the testing button on earth leakage protective device 12
Button 52 is to realize that Electronic control presses the reset button of earth leakage protective device 12.As shown in figure 4, in order to realize the above functions, electricity
The component part of magnetic button includes button axle 61, adsorpting iron plate 62, electromagnetic coil 63, spring 64.Electromagnetic coil 63 and protrusion connect
The lower part of the inside of bar is fixedly connected, and electromagnetic coil 63 is equipped with lead and its main body uses insulating materials casting forming.Electromagnetism
The ring heart of coil 63 is coincided with the upper and lower with transmission through-hole.Button axle 61 is plugged on inside the ring heart of electromagnetic coil 63, and upper and lower two
End is concordant with the protrusion lower planes of connecting rod.In order to realize the up and down motion of button axle 61, it is provided on the top of button axle 61
Adsorpting iron plate 62, adsorpting iron plate 62 are fixedly connected with button axle 61, therefore in the case where electromagnetic coil 63 charges, adsorpting iron plate
62 are driven button axle 61 to move downward by attraction.In order to guarantee that button axle 61 is multiple in the case where 63 power loss of electromagnetic coil
Position is provided with spring 64 between adsorpting iron plate 62 and electromagnetic coil 63.The upper and lower ends of spring 64 respectively with adsorpting iron plate 62
It is fixedly connected with electromagnetic coil 63.
As shown in figure 5, preferably, in order to buffer percussion when adsorpting iron plate 62 resets to protrusion connecting rod, being driven
The lower part of through-hole is provided with limited block 65, and limited block 65 is fixedly connected with the top inside protrusion connecting rod.In Electromagnetic push-button
Internal electro-solenoid 63 generate electromagnetic attraction be greater than spring 64 elastic force, to guarantee that button axle 61 can be pressed smoothly.
The protrusion connecting rod of shell controls testing button and the reset of earth leakage protective device 12 to realize installation Electromagnetic push-button
Button, to realize that electrical control also needs connecting terminal to carry out electrical connection, therefore setting in the front and rear of shell
There is major loop terminal, is additionally provided with control terminal in the upper end of the front of shell.As shown in Figures 2 and 3, wherein the major loop of front side
Terminal is input terminal 21, to connect external power supply.The main circuit terminal attached bag at rear portion includes line terminals 23, main road lead terminal
24, lead terminal 25 is bypassed.Power load of the outlet terminal 23 to connect user side, main, bypass lead terminal 24,25 are distinguished
To connect the output end of earth leakage protective device 12, by-pass switch 3, in the inside of protection controller 2, outlet terminal 23, master, bypass
Lead terminal 24,25 simultaneously connects.The function of major loop terminal is the access for connecting the high current of user load and power supply, to
It realizes that the on-off control in the circuit of high current also needs control loop, therefore is provided with control terminal, including bypass shutting-brake control
Terminal 26, bypass separating brake control terminal 27, main road shutting-brake control terminal 28.Splitting or integrating lock control terminal 26,27 is bypassed to control
By-pass switch 3 switches on and off, combined floodgate of the main road shutting-brake control terminal 28 to control earth leakage protective device 12.Due to alternating current electricity
Source is mostly a firewire and a zero curve, and control equipment interface needs two nodes therefore in major loop terminal mentioned in this article
It is all the terminal of two point with control terminal.
It is the description to protection 2 structure of controller above, to realize that automatic leakage tests, power-off leakage electrical testing does not need also
Want core, that is, control circuit of core component.Control circuit is set to the inside of shell, and control circuit is usually to be produced on pcb board
On, some larger or bulky electronic component is mounted on the inside of shell.As shown in fig. 7, control circuit includes power module
71, controller 72, bypass closing relay K1, bypass separating brake relay K2, main road closing relay K3.
The alternating current of alternating current 220V is converted electricity to the electrical component power supply to protection controller 2 by power module 71
The low-voltage dc power supply that sub- component is supported.Therefore the input terminal of power module 71 and input terminal 21 are located at the one of enclosure interior
End electrical connection.The output end and controller 72 of power module 71 are electrically connected.In order to realize the control to relay, Electromagnetic push-button
System, the coil windings, the coil windings of main road closing relay K3 and controller 72 for bypassing splitting or integrating lock relay K1, K2 are electrical
Connection.Electromagnetic push-button 51, the electromagnetic coil for resetting Electromagnetic push-button 52 and controller 72 is tested to be electrically connected.
In order to keep the present invention more practical, other than it can automatically control test leakage function, it is also necessary to be able to carry out manually
Test, therefore manual bypass switch knob SH and manual bypass opening button SF is provided in the upper plane of shell.Due to
The contactor that the embodiment of the present invention uses needs to carry out control of the control realization of electric loop to contactor main contacts, because
This manual bypass switch knob SH is normally opened button, and manual bypass opening button SF is normally closed button.It malfunctions in order to prevent, hand
The upper surface of dynamic bypass splitting or integrating lock button SH, SF are concordant with the upper surface of shell.It is each electronics member of composition control circuit above
Part is below described the circuit connecting relation of control circuit.
One, the connection control circuit of by-pass switch 3.The both ends and bypass for bypassing the normally opened contact of closing relay K1 are closed a floodgate
Two nodes of control terminal 26 are electrically connected, to realize the externally output reclosing command of controller 72；Manual bypass combined floodgate is pressed
Button SH is in parallel with the bypass normally opened contact of closing relay K1, and reclosing command is externally exported when realizing manual test.Two, other
The control circuit that way switch 3 disconnects.After the normally-closed contact series connection of manual bypass opening button SF and bypass separating brake relay K2 simultaneously
It connects on two nodes of bypass separating brake control terminal 27, either controller 72 issues instruction at this time, is still manually pressed by manually
Opening button SF is bypassed, control instruction can be all will be switched off and be output on bypass separating brake control terminal 27.Three, earth leakage protective device 12
Contacting controling circuit.The both ends of the normally opened contact of main road closing relay K3 and the both ends of main road shutting-brake control terminal 28 electrically connect
Connect, when having manual test, operator and directly operate earth leakage protective device 12, therefore be not provided with main road close a floodgate it is manual by
Button.
It is the description to the internal circuit of protection controller 2 above, below to motor-operating mechanism 11 of the invention, electric leakage
Electric connecting relation between protector 12, protection controller 2 and by-pass switch 3 carries out buying description.
As shown in fig. 6, according to circuit diagram: one, the electrical connection of major loop is described.The electricity of earth leakage protective device 12
Source and input terminal 21 simultaneously connect, load end and main road lead terminal 24 electrical connection of earth leakage protective device 12.By-pass switch 3
The end of incoming cables of main contacts and input terminal 21 simultaneously connect, and the leading-out terminal and bypass lead terminal 25 of the main contacts of by-pass switch 3 are electrical
Connection.Two, the electrical connection of control loop.The control power supply and zero firewire of input terminal 21 of motor-operating mechanism 11 electrically connect
It connects.The shutting-brake control input terminal and main road shutting-brake control terminal 28 of motor-operating mechanism 11 are electrically connected.The line of by-pass switch 3
Circle winding and bypass shutting-brake control terminal 26 are attempted by between zero firewire of input terminal 21 after connecting.Bypass separating brake control terminal
27 and by-pass switch 3 normally opened contact series connection after combined floodgate terminal 26 and connect with bypass.
Preferably, in order to make the present invention have better safety and reliability, protection controller 2 is examined equipped with action signal
Device is surveyed, to detect whether executive component acts after controller 72 issues control instruction.
It is provided with button switch on 63 top of the electromagnetic coil of Electromagnetic push-button first, it is whether true for detecting button axle 61
Positive presses.The button switch for testing the electromagnetic coil top of Electromagnetic push-button 51 is test detection button switch S1；Reset electromagnetism
Button switch on the electromagnetic coil of button 52 is reset detection button switch S2.Test detection button switch S1, reset detection
Button switch S2 is electrically connected with controller 72 respectively.
Secondly main, bypass electricity is arranged on outlet terminal 23 and firewire connecting line main, between bypass lead terminal 24,25
The case where conducting and disconnection of the contact of current transformer L1, L2 to detect earth leakage protective device 12 and by-pass switch 3.Main, bypass
The secondary lead-out wire and controller 72 of current transformer L1, L2 are electrically connected.
Finally, being provided with malfunction indicator lamp in the upper surface of shell to indicate failure.In order to indicate different failures,
The number of malfunction indicator lamp may be configured as multiple.Of the invention more small and exquisite in order to make, malfunction indicator lamp uses light-emitting diodes
Pipe.Malfunction indicator lamp and controller 72 are electrically connected.
Preferably, in order to which the fault message tested automatically is prompted to maintenance management personnel, protection controller 2 is additionally provided with logical
Believe module.It is relatively common by the way of GPRS communication in the application of current electric system.Therefore it can be set one
GPRS communication module, GPRS communication module and controller 72 are electrically connected, and the fault message that controller 72 will test sends a
GPRS communication module is given, GPRS communication module sends information to maintenance personnel by data network.
Preferably, the function that the present invention realizes can be guaranteed when testing the creepage protection function of earth leakage protective device 12
User side does not have a power failure, and has added by-pass switch 3 and protection controller 2 thus, but still could when by-pass switch 3 works
The phenomenon that overloading, in order to increase security reliability of the invention, controller 72 is enough detected by by-pass current mutual inductor L2
The size of electric current detects whether overcurrent, therefore whether controller 72 can be more than that setting value is opened to control bypass according to electric current
Close 3 on-off.Preferably, it can be used with motor-operating mechanism miniature circuit breaker as by-pass switch 3.
By-pass switch 3 be connected during, in addition to can be there is a phenomenon where overloading the problem of also occur that electric leakage.Such as Fig. 8
It is shown, preferably, electric leakage signal relay K4 is equipped with inside earth leakage protective device 12.The coil windings of electric leakage signal relay K4
In parallel with the tripping coil of earth leakage protective device 12, the normally opened contact of electric leakage signal relay K4 passes through conducting wire and protection controller 2
Controller 72 be electrically connected.Therefore it is equipped with threading hole in the side of earth leakage protective device 12, to realize being pierced by for conducting wire；It is protecting
It protects and is equipped with detection of electrical leakage terminal 29 at the control terminal of controller 2.The outside of detection of electrical leakage terminal 29 and electric leakage signal relay
The conducting wire of the normally opened contact of K4 connects, and the inside of detection of electrical leakage terminal 29 and controller 72 are electrically connected.
Based on above structure, the manual test that creepage protection function may be implemented of the invention and automatic test, below it is right
Application method of the invention, which is done, to be illustrated.
Method 1, the method for manual test creepage protection function.Manual test is exactly to pass through maintenance personnel's execute-in-place, tool
The step of body are as follows:
Step 1.1, user side powers off in order to prevent, first connects the main contacts of by-pass switch 3, the mode of connection be by
The manual bypass switch knob SH on lower protection 2 top of controller.According to circuit structure it is found that pressing manual bypass switch knob SH
Later, the coil windings electrification of by-pass switch 3, the main contacts circuit of by-pass switch 3 are connected.
Step 1.2, leakage tests are carried out.It is identical with the test of earth leakage protective device 12, it is surveyed by pressing testing button
Examination.Since the protrusion connecting rod of protection controller 2 covers the testing button of earth leakage protective device 12, it is therefore desirable to press test electromagnetism
The button axle 61 of button 51, the testing button of earth leakage protective device 12 is pressed by button axle 61.
Step 1.3, check whether earth leakage protective device 12 trips.Illustrate that creepage protection function is normal if tripping, it can
Continue to execute step 1.4；Illustrate 12 failure of earth leakage protective device if not tripping, needs repairing or replace.
Step 1.4, earth leakage protective device 12 is resetted.Specifically, the button axle 61 for resetting Electromagnetic push-button 52 is pressed, it is multiple
The button axle 61 of position Electromagnetic push-button 52 moves downward and then presses the reset key of earth leakage protective device 12.
Step 1.5, by 12 closing by hand of earth leakage protective device.
Step 1.6, restore reset condition.Specifically, the manual bypass opening button SF on protection 2 top of controller is pressed,
According to circuit connecting relation it is found that the coil windings power loss of by-pass switch 3, and then 3 main contacts of by-pass switch disconnects, and is restored to just
The state of beginning.Preferably, after disconnecting by-pass switch 3, controller 72 detects whether by-pass current mutual inductor L2 has electric current, such as
Fruit has electric current then to illustrate that the main contacts of by-pass switch 3 does not disconnect, it is understood that there may be contact be sintered the problem of and controller 72 light
Malfunction indicator lamp；Illustrate that by-pass switch 3 is normal if without electric current.
Preferably, in order to carry out earth leakage protective within the time that by-pass switch 3 is connected, step 1.5 is arrived executing step 1.1
During, whether the normally opened contact that controller 72 also detects electric leakage signal relay K4 is closed, if detecting electric leakage signal
The normally opened contact of relay K4 is closed, and the instruction that controller 72 then issues disconnection by-pass switch 3 keeps the main contacts of by-pass switch 3 disconnected
It opens, the normal step 1.1 that executes is to step 1.5 if not detecting that the normally opened contact of electric leakage signal relay K4 is closed.
It is manual detection creepage protection function above, needs detect every month one time due to earth leakage protective device 12, for
Busy maintenance personnel is a kind of work load, therefore the function of detecting automatically that the present invention develops.Below to automated periodic
Detection control method is described.
It is equipped with time timer unit in the inside of controller 72, is started automatically after the time cycle for detecting one month
Earth leakage detection functions, automatic earth leakage detection functions the following steps are included:
Step 2.1, by-pass switch 3 is connected, specifically, the coil windings band of the control bypass of controller 72 closing relay K1
Electricity, the normally opened contact closure of bypass closing relay K1, the main contacts of by-pass switch 3 are connected.
Step 2.2, whether the main contacts that controller 72 detects by-pass switch 3 is connected, and thens follow the steps 2.3 if connected,
Malfunction indicator lamp is lighted if being not switched on.The method whether detection by-pass switch 3 is connected is the detection bypass electricity of controller 72
Whether current transformer L2 has electric current, if there is electric current then illustrates to have turned on, illustrates to be not switched on if without electric current.
Step 2.3, creepage protection function is tested, specifically, controller 72 connects the electromagnetic coil of test Electromagnetic push-button 51,
Adsorpting iron plate 62 is driven button axle 61 to move downward by the effect of electromagnetic attraction, button axle 61 and then triggering earth leakage protective device
12 testing button.
Step 2.4, whether detection test Electromagnetic push-button 51 executes the instruction of the sending of controller 72, specifically, controller 72
Whether detection test detection button switch S1 is closed, and illustrates to protect 2 failure of controller, and then controller 72 if not being closed
Malfunction indicator lamp is lighted, if closure, illustrates that equipment is normal, can continue to execute step 2.5.
Step 2.5, controller 72 detects whether earth leakage protective device 12 disconnects, specifically, controller 72 detects main road electric current
Whether mutual inductor L1 has electric current, and if there is electric current illustrates that earth leakage protective device 12 is not turned off, and controller 72 is lighted failure and referred to
Show lamp, illustrates that earth leakage protective device 12 is already off if detecting no electric current, and execute step 2.6.
Step 2.6, earth leakage protective device 12 is resetted, specifically, controller 72 connects the electricity for resetting Electromagnetic push-button 52
Magnetic coil, the button axle 61 for resetting Electromagnetic push-button 52 move downward under the action of adsorpting iron plate 62 by attraction, in turn
Press the reset button of earth leakage protective device 12.
Step 2.7, controller 72 detects whether reset detection button switch S2 is closed, and failure is lighted if not being closed
Indicator light, if closure thens follow the steps 2.8；
Step 2.8, earth leakage protective device 12 is closed a floodgate, specifically, controller 72 controls the coil of main road closing relay K3
Winding electrification, the normally opened contact closure of main road closing relay K3, motor-operating mechanism 11 detect main road closing relay K3
Normally opened contact closure after control earth leakage protective device 12 close a floodgate.
Step 2.9, whether detection earth leakage protective device 12 closes a floodgate, specifically, controller 72 detects main road current transformer L1
Whether there is electric current, if there is electric current illustrates that earth leakage protective device 12 has closed a floodgate, and step 2.10 is executed, if detecting does not have
Electric current then illustrates that earth leakage protective device 12 closes a floodgate and fails, and controller 72 lights malfunction indicator lamp；
Step 2.10, by-pass switch 3 is disconnected, specifically, the control bypass separating brake relay K2 coil windings band of controller 72
Electricity, bypass separating brake relay K2 normally-closed contact disconnect, by the connection structure of circuit it is found that at this time the coil of by-pass switch 3 around
The main contacts of group power loss, by-pass switch 3 disconnects.
Step 2.11, whether the main contacts for detecting by-pass switch 3 disconnects, specifically, the detection by-pass current of controller 72 is mutual
Whether sensor L2 has electric current, if there is electric current illustrates 3 failure of by-pass switch, it is understood that there may be the problem of contact is sintered, and control
Device 72 lights malfunction indicator lamp；Illustrate that the main contacts of by-pass switch 3 is already off if without electric current, this automatic detection leakage
Electric protection function terminates, and has been restored to normal condition.
Preferably, in order to be that can continue to play earth leakage protective function in detection creepage protection function, step is being executed
2.2 into each step during step 2.9, and controller 72 detects whether electric leakage signal relay K4 is closed, if fruit is closed
The instruction that controller 72 then issues disconnection by-pass switch 3 disconnects the main contacts of by-pass switch 3；It is normal if not examining closure
It executes step 2.2 and arrives step 2.9.
In conclusion only presently preferred embodiments of the present invention, is not supposed to be a limitation to the present invention, by above-mentioned
Description, relevant staff completely can without departing from the scope of the technological thought of the present invention', carry out multiplicity change
More and modify.Technical scope of the invention is not limited to the contents of the specification, all claimed range institutes under this invention
The shape stated, construction, feature and the so-called equivalent changes and modifications of spirit should all include and scope of the presently claimed invention
It is interior.
Claims (10)
1. a kind of Intelligent leakage protection switch, the earth leakage protective device (12) including having motor-operating mechanism (11), feature exists
In:
It further include the shunting device being fixedly connected with earth leakage protective device (12), the shunting device includes the protection to link together
Controller (2) and by-pass switch (3),
The protection controller (2) includes integrally formed shell, and the enclosure interior is equipped with control circuit,
The shell and earth leakage protective device (12) adjacent side there are two protruding connecting rod, the protrusion connecting rod for hollow structure simultaneously
And communicated with enclosure interior, two protrusion connecting rods are respectively the first and second protrusion connecting rod (41,42), and the protrusion connecting rod is located at leakage
The top of non-electricity protector (12), and protrude up and down two planes of the connecting rod close to one end of earth leakage protective device (12) and be equipped with transmission
Through-hole, the protrusion connecting rod inside are equipped with Electromagnetic push-button, and the internal Electromagnetic push-button of the first protrusion connecting rod (41) is to test electromagnetism to press
Button (51), the internal Electromagnetic push-button of the second protrusion connecting rod (42) is to reset Electromagnetic push-button (52), first protrusion connecting rod (41)
Transmission through-hole and the position of the testing button of earth leakage protective device (12) coincide with the upper and lower, it is described second protrusion connecting rod (42) transmission
Through-hole and the position of the reset button of earth leakage protective device (12) coincide with the upper and lower,
The front and rear of the shell is equipped with major loop terminal, and the upside of shell front is equipped with control terminal, the front
Major loop terminal is input terminal (21), and the main circuit terminal attached bag at the rear portion includes line terminals (23), main road lead terminal
(24), lead terminal (25) are bypassed, the control terminal includes bypass shutting-brake control terminal (26), bypass separating brake control terminal
(27), main road shutting-brake control terminal (28), the major loop terminal and control terminal are the terminal of two point,
The Electromagnetic push-button includes button axle (61), adsorpting iron plate (62), electromagnetic coil, spring (64), the button axle (61)
It is plugged in transmission through-hole and the upper and lower ends of button axle (61) is concordant with the protrusion lower planes of connecting rod respectively, the electromagnetism
Coil is set in the lower part of button axle (61), and is fixedly connected with the inside of protrusion connecting rod, and the adsorpting iron plate (62) is located at
It the top of electromagnetic coil and is fixedly connected with button axle (61), the spring (64) is set to adsorpting iron plate (62) and electromagnetic coil
Between, and the both ends of spring (64) are fixedly connected with adsorpting iron plate (62), electromagnetic coil respectively,
The by-pass switch (3) is contactor,
The control circuit includes power module (71), controller (72), bypass closing relay (K1), bypass separating brake relay
(K2), main road closing relay (K3), the coil windings of bypass splitting or integrating lock relay (K1, K2), main road closing relay
(K3) coil windings and controller (72) electrical connection, electromagnetic coil, the reset electromagnetism of test Electromagnetic push-button (51) are pressed
The electromagnetic coil and controller (72) of button (52) are electrically connected,
The top of the shell is equipped with manual bypass switch knob (SH) and manual bypass opening button (SF), the manual bypass
Switch knob (SH) is normally opened button, and the manual bypass opening button (SF) is normally closed button, the manual bypass splitting or integrating lock
The flush of the shell of the upper surface and protection controller (2) of button (SH, SF),
The upper surface of the shell be equipped with multiple malfunction indicator lamp, the malfunction indicator lamp be light emitting diode, and with control
Device (72) electrical connection,
The input terminal of the power module (71) and input terminal (21) zero, firewire electrical connection, power module (71) it is defeated
Outlet and controller (72) are electrically connected,
The both ends of the normally opened contact of bypass closing relay (K1) and the two-end-point of bypass shutting-brake control terminal (26) are electrical
Connection, the manual bypass switch knob (SH) with bypass closing relay (K1) normally opened contact and connect, the manual bypass
Opening button (SF) and the normally-closed contact for bypassing separating brake relay (K2) are attempted by bypass separating brake control terminal (27) after connecting
Both ends, the both ends of the normally opened contact of the main road closing relay (K3) and the two-end-point of main road shutting-brake control terminal (28) are electrical
Connection,
The power end and input terminal (21) of the earth leakage protective device (12) simultaneously connect, the load end and main road of earth leakage protective device (12)
Lead terminal (24) simultaneously connects, inside housings main road lead terminal (24), bypass lead terminal (25) and outlet terminal (23) simultaneously
It connects,
The control power supply of the motor-operating mechanism (11) is connect with zero firewire of input terminal (21), motor-operating mechanism (11)
Shutting-brake control terminal and main road shutting-brake control terminal (28) electrical connection,
Input terminal (21) is attempted by after the coil windings and bypass shutting-brake control terminal (26) series connection of the by-pass switch (3)
Between zero firewire, control of closing a floodgate after the normally opened contact series connection of bypass separating brake control terminal (27) and by-pass switch (3) with bypass
Terminal (26) processed simultaneously connects, the end of incoming cables of the main contacts of the by-pass switch (3) and input terminal (21) electrical connection, by-pass switch
(3) leading-out terminal of main contacts and bypass lead terminal (25) electrical connection,
The outlet terminal (23) of protection controller (2) and user load electrical connection, protect the input terminal of controller (2)
(21) it is electrically connected with power supply grid.
2. a kind of Intelligent leakage protection switch according to claim 1, it is characterised in that:
The by-pass switch (3) is the miniature circuit breaker equipped with motor-operating mechanism.
3. a kind of Intelligent leakage protection switch according to claim 1, it is characterised in that:
The top of the electromagnetic coil of the Electromagnetic push-button is equipped with button switch, to detect whether adsorpting iron plate (62) acts, surveys
Trying the button switch in Electromagnetic push-button (51) is that test detection button switchs (S1), resets Electromagnetic push-button (52) internal button and opens
Closing is reset detection button switch (S2), the test detection button switch (S1), reset detection button switch (S2) and control
Device (72) electrical connection.
4. a kind of Intelligent leakage protection switch according to claim 3, it is characterised in that:
Main road current transformer is arranged on firewire connecting line between the outlet terminal (23) and main road lead terminal (24)
(L1), leading-out terminal and controller (72) electrical connection of the main road current transformer (L1), the outlet terminal (23) and side
It is arranged on firewire connecting line between pass line terminals (15) by-pass current mutual inductor (L2), the by-pass current mutual inductor
(L2) leading-out terminal and controller (72) electrical connection,
The master, by-pass current mutual inductor (L1, L2) to by detect whether there are electric current come determine earth leakage protective device (12),
Whether the contact of by-pass switch (3) disconnects.
5. a kind of Intelligent leakage protection switch according to claim 4, it is characterised in that:
It is equipped with electric leakage signal relay (K4) inside the earth leakage protective device (12), the coil of the electric leakage signal relay (K4)
Winding is in parallel with the electric leakage tripping coil of earth leakage protective device (12), and the control terminal of protection controller (2) further includes electric leakage
Detection terminal (29), detection of electrical leakage terminal (29) and controller (72) electrical connection, the electric leakage signal relay (K4) it is normal
Contact is opened by conducting wire and the detection of electrical leakage terminal (29) of controller (2) is protected to be electrically connected.
6. a kind of Intelligent leakage protection switch according to claim 1, it is characterised in that:
The lower part of the transmission through-hole is equipped with limited block (65), and the limited block (65) is fixedly connected with the inner wall of shell.
7. a kind of Intelligent leakage protection switch according to claim 1, it is characterised in that:
The control circuit is equipped with communication module, the communication module and controller (72) electrical connection.
8. a kind of application method of Intelligent leakage protection switch according to claim 5, it is characterised in that:
Including following methods:
Method 1 carries out the method for manual test creepage protection function in the case where earth leakage protective device (12) work normally:
Step 1.1, it presses manual bypass switch knob (SH), connects by-pass switch (3)；
Step 1.2, the button axle (61) of test Electromagnetic push-button (51) is pressed, the button axle (61) for testing Electromagnetic push-button (51) is downward
The testing button of earth leakage protective device (12) is slided and then drives, earth leakage protective device (12), which detects, starts jump after testing button is pressed
Lock movement；
Step 1.3, it checks whether earth leakage protective device (12) trips, earth leakage protective device (12) failure is illustrated if not tripping, and
Checked and replaced earth leakage protective device (12)；If tripping, illustrate that earth leakage protective device (12) function is normal and executes step
1.4；
Step 1.4, the button axle (61) for resetting Electromagnetic push-button (52) is pressed, the button axle (61) for resetting Electromagnetic push-button (52) is downward
The reset button of earth leakage protective device (12) is slided and then drives, earth leakage protective device (12) is detected to leak electricity after reset button is pressed and be protected
Device (12) are protected to reset；
Step 1.5, earth leakage protective device (12) are closed；
Step 1.6, manual bypass opening button (SF) is pressed, by by-pass switch (3) disjunction, completes test；
Method 2, the control method of periodically automatic test leakage function:
It is equipped with time timer unit inside controller (72), started autorun after one month time cycle,
Step 2.1, the coil windings electrification of controller (72) control bypass closing relay (K1), bypasses closing relay (K1)
Normally opened contact closure, the main contacts of by-pass switch (3) connects；
Step 2.2, whether the main contacts of controller (72) control detection by-pass switch (3) is connected, if be not switched on, controller
(72) malfunction indicator lamp is then lighted；If it is switched on, thening follow the steps 2.3；The method of detection is controller (72) detection bypass electricity
Whether current transformer (L2) has electric current, if there is electric current then illustrates to have turned on, illustrates to be not switched on if without electric current；
Step 2.3, controller (72) connects the electromagnetic coil of test Electromagnetic push-button (51), tests the absorption iron of Electromagnetic push-button (51)
Piece (62) slide downward and then button axle (61) of drive test Electromagnetic push-button (51) under the suction by electromagnetic coil
Move down and press the testing button of earth leakage protective device (12)；
Step 2.4, whether controller (72) detection test detection button switch (S1) is closed, and illustrates to test if not being closed
Electromagnetic push-button (51) is not carried out the instruction of controller (72) and controller (72) lights malfunction indicator lamp；It is executed if closure
Step 2.5；
Step 2.5, whether the switch contact of controller (72) detection earth leakage protective device (12) disconnects, specifically, controller (72)
Whether detection main road current transformer (L1) has electric current, if there is electric current illustrates that earth leakage protective device (12) contact is not turned off, and
And controller (72) lights malfunction indicator lamp；Illustrate that earth leakage protective device (12) is already off if detecting no electric current, and
And execute step 2.6；
Step 2.6, controller (72) connects the electromagnetic coil for resetting Electromagnetic push-button (52), resets the button axle of Electromagnetic push-button (52)
(61) iron plate (62) are adsorbed to drive and move downward, and then press the reset button of earth leakage protective device (12)；
Step 2.7, whether controller (72) detection reset detection button switch (S2) is closed, and illustrates to reset if not being closed
Electromagnetic push-button (52) executes the instruction failure of controller (72), and controller (72) lights malfunction indicator lamp；If closure
Execute step 2.8；
Step 2.8, the coil windings electrification of controller (72) control main road closing relay (K3), main road closing relay (K3)
Normally opened contact closure, motor-operating mechanism (11) detect main road closing relay (K3) normally opened contact closure after control leakage
Non-electricity protector (12) closes a floodgate；
Step 2.9, whether controller (72) detection earth leakage protective device (12) closes a floodgate, specifically, controller (72) detection main road electricity
Whether current transformer (L1) has electric current, if there is electric current illustrates that earth leakage protective device (12) has closed a floodgate, and executes step 2.10,
Illustrate that earth leakage protective device (12) close a floodgate if detecting no electric current to fail, and controller (72) lights malfunction indicator lamp；
Step 2.10, controller (72) control bypass separating brake relay (K2) coil windings electrification, bypasses separating brake relay (K2)
Normally-closed contact disconnect, and then make the coil windings power loss of by-pass switch (3), disconnect by-pass switch (3) main contacts；
Step 2.11, whether the main contacts of controller (72) detection by-pass switch (3) disconnects, specifically, controller (72) detects
Whether by-pass current mutual inductor (L2) has electric current, and if there is electric current illustrates by-pass switch (3) failure, and controller (72) is lighted
Malfunction indicator lamp illustrates that the main contacts of by-pass switch (3) is already off if without electric current, this detects earth leakage protective automatically
Function terminates, and has been restored to normal condition.
9. a kind of application method of Intelligent leakage protection switch according to claim 8, it is characterised in that:
In the method 1, during execution step 1.1 arrives step 1.6, controller (72) also detects electric leakage signal relay
(K4) whether normally opened contact is closed, if detecting the normally opened contact closure of electric leakage signal relay (K4), controller (72)
Then issue disconnect by-pass switch (3) instruction disconnect the main contacts of by-pass switch (3), if do not detect electric leakage signal after
The normally opened contact closure of electric appliance (K4) then normally executes step 1.1 and arrives step 1.5；
In the method 1, after executing step 1.6, whether controller (72) detection by-pass current mutual inductor (L2) has electric current,
If there is electric current then illustrates that the main contacts of by-pass switch (3) is not turned off, there are failure, controller (72) points for by-pass switch (3)
Bright malfunction indicator lamp illustrates that the main contacts of by-pass switch (3) is already off if without electric current, and equipment is restored to normal shape
State.
10. a kind of application method of Intelligent leakage protection switch according to claim 8, it is characterised in that:
In the method 2, during execution step 2.2 arrives step 2.9, controller (72) also detects leakage relay (K4)
Normally opened contact whether be closed, if the normally opened contact of electric leakage signal relay (K4) closure controller (72) issue disconnect it is other
The instruction of way switch (3) disconnects the main contacts of by-pass switch (3), if not detecting the normal of electric leakage signal relay (K4)
It opens contact closure and then normally executes step 2.2 to step 2.9.
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| CN201711361901.3A CN107910232B (en) | 2017-12-18 | 2017-12-18 | A kind of Intelligent leakage protection switch |
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| CN201711361901.3A CN107910232B (en) | 2017-12-18 | 2017-12-18 | A kind of Intelligent leakage protection switch |
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| CN107910232B true CN107910232B (en) | 2019-11-19 |
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| CN108736438B (en) * | 2018-05-30 | 2019-09-20 | 浙江朗威微系统有限公司 | Built-in Self Test function leakage protection circuit and its detection method |
| CN109222673A (en) * | 2018-08-07 | 2019-01-18 | 合肥人和节能环保设备制造有限公司 | A kind of installation and its application method of large size electric baking pan |
| CN109245064A (en) * | 2018-09-27 | 2019-01-18 | 杭州四方博瑞科技股份有限公司 | dual-mode intelligent breaker |
| CN110112043B (en) * | 2019-05-30 | 2024-03-15 | 南方电网调峰调频发电有限公司鲁布革水力发电厂 | Safety leakage protection switch |
| CN113871266B (en) * | 2021-10-29 | 2022-06-21 | 佛山奇正电气有限公司 | Automatic closing circuit breaker |
| CN115085030B (en) * | 2022-06-07 | 2023-01-31 | 国网山东省电力公司东明县供电公司 | Power supply cabinet internal environment monitoring equipment |
| CN116353646A (en) * | 2023-02-15 | 2023-06-30 | 株洲桓基电气股份有限公司 | Locomotive air conditioner leakage protection device and air conditioner control system using same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH09182278A (en) * | 1995-12-25 | 1997-07-11 | R B Controls Kk | Earth leakage protector |
| CN200979863Y (en) * | 2006-10-14 | 2007-11-21 | 晋江振泰科技有限公司 | A leakage protection switch |
| CN102097780B (en) * | 2011-01-31 | 2014-08-06 | 赵长城 | Electric shock and electric leakage protection device for low voltage power grid |
| CN102255278B (en) * | 2011-07-01 | 2014-04-16 | 河北工业大学 | Comprehensive leakage protector |
| CN202721433U (en) * | 2012-08-31 | 2013-02-06 | 大庆市嘉华科技有限公司 | Leakage protection and power supply recovery apparatus |
| CN206712447U (en) * | 2017-04-12 | 2017-12-05 | 中山市开普电器有限公司 | A kind of leakage protection circuit with overvoltage protection |
| CN207651433U (en) * | 2017-12-18 | 2018-07-24 | 淄博职业学院 | A kind of Intelligent leakage protection switch |
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