CN206135386U - Protection against electric shock circuit breaker soaks - Google Patents
Protection against electric shock circuit breaker soaks Download PDFInfo
- Publication number
- CN206135386U CN206135386U CN201621204701.8U CN201621204701U CN206135386U CN 206135386 U CN206135386 U CN 206135386U CN 201621204701 U CN201621204701 U CN 201621204701U CN 206135386 U CN206135386 U CN 206135386U
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- China
- Prior art keywords
- transmission line
- switch
- line
- electric shock
- electricity
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- Withdrawn - After Issue
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Abstract
The utility model discloses a protection against electric shock circuit breaker soaks, including control line and execution switch, control line one end is exposed arrange in the discharge end of transmission line phase line other and the two between break off, a signal input part who carries out the switch is connected to the other end, another signal input part who carries out the switch connects the transmission line neutral conductor, the action mechanism who carries out the switch connects transmission line. When the exposed one end of control line along with the transmission line discharge end together in the water intrusion time, water makes and switches on between the two, some flows through the control line electric current that the discharge end was emitted, the action mechanism who carries out the switch produces the action and cuts off transmission line, effectively prevents the emergence of electric shock accidents.
Description
Technical field
This utility model is related to field of circuit breakers, and in particular to one kind immersion protection against electric shock chopper.
Background technology
Earth leakage protective device, abbreviation leakage switch, is called RCCB, is primarily used to when equipment occurs leak current fault
And the personal electrical shock protection to there is fatal risk, with overload and short-circuit protection function, can be used to protection circuit or motor
Overload and short circuit, also can under normal circumstances as circuit infrequently conversion start be used.
According to the operation principle of protector, three kinds of voltage-type, current mode and impulse type can be divided into, and current mode is divided into electricity
Two kinds of magnetic-type and electronic type.Voltage-type protector is connected between transformer neutral point and the earth, the neutral point excursion when getting an electric shock
Voltage is produced over the ground, makes protection act cut off the electricity supply with this, but because it is that whole distribution low-voltage net is protected, it is impossible to
Cascade protection, therefore power failure range is big, acts frequently, so being eliminated；Pulse-type current protector is when getting an electric shock
The suddenly change for producing the phase place of three-phase imbalance leakage current, amplitude, as action signal, but also has dead band；At present should
With being widely current mode leakage protector, current mode leakage protector is with a part for zero-sequence current in circuit（Commonly referred to as
For aftercurrent）As action signal and many using electronic component as intermediary agency, sensitivity is high, multiple functional therefore this
Protection device is increasingly widely applied, four parts of composition point of current mode leakage protector：
Detecting element：Detecting element can be described as a zero sequence current mutual inductor.Protected phase line, the neutral conductor pass through ring
Shape is unshakable in one's determination, constitutes the primary winding N1 of transformer, and the winding being wrapped on annular core constitutes the secondary coil of transformer
N2, if not leaking electricity generation, at this moment flows through phase line, the current vector of the neutral conductor and equal to zero, therefore can not produce on N2
The corresponding induction electromotive force of life.In the event of electric leakage, phase line, the current vector of the neutral conductor and it is not equal to zero, just makes to be produced on N2
Raw induction electromotive force, this signal will be sent to intermediate link and be further processed.
Intermediate link：Intermediate link generally includes amplifier, comparator, electrical apparatus release, when intermediate link is electronic type, in
Between link also want accessory power supply provide electronic circuit work needed for power supply.The effect of intermediate link is exactly to mutual from zero sequence
The electric leakage signal of sensor is amplified and processes, and exports to actuator.
Actuator：The structure is used to receive the command signal of intermediate link, and enforcement action automatically cuts off the electricity at failure
Source.
Assay device：Whether because earth leakage protective device is a protection device, therefore it is intact, reliable to make regular check on it.
Can assay device be exactly the series connection by test button and current-limiting resistance, simulates leakage path, be operating normally with check device.
When transmission line of electricity phase line and neutral line discharge end be immersed in the water together when, due to circuit current vector sum still etc.
In zero, induction electromotive force will not be produced, however it is actually powered in water, it is easy to cause security incident.
The content of the invention
The technical problems to be solved in the utility model is to provide a kind of immersion protection against electric shock chopper, can solve existing electric current
Type earth leakage protective device detects whether to leak electricity using ZCT, causes in transmission line of electricity discharge end while being immersed in the water
Current synchronization cannot produce the problem of sensing when changing.
This utility model is achieved through the following technical solutions：
One kind immersion protection against electric shock chopper, including control line and perform switch, described control line one end is exposed be arranged in it is defeated
Disconnect by the discharge end of electric line phase line and therebetween, other end connection performs a signal input part of switch, the execution
Another signal input part connection transmission line of electricity neutral conductor of switch, the actuating mechanism connection transmission line of electricity of the execution switch.
Further scheme of the present utility model is that the switch that performs is for electromagnetic leakage protection switch, or electronic type leakage
Electric protective circuit breaker, or voltage operation type earth leakage circuit-breaker.
Further scheme of the present utility model is to be also associated with RCCB on the transmission line of electricity.
Further scheme of the present utility model is that exposed one end of the control line is slightly below the electric discharge of transmission line of electricity phase line
End place horizontal plane.
This utility model advantage compared with prior art is：
First, when the exposed one end of control line is together immersed in the water with transmission line of electricity discharge end, water makes to turn on therebetween, puts
Some flows through control line to the electric current that electric end releases, and performs the actuating mechanism generation action cut-out transmission line of electricity of switch, effectively
Prevent the generation of electric shock accidentss；
Two and other RCCBs use cooperatively, further improve the safety of transmission line of electricity；
3rd, exposed one end of control line is relatively low, it is ensured that can accurately, in time find the immersion of power transmission line discharge end.
Description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is each interelectrode equivalent resistance view during immersion.
Specific embodiment
Embodiment 1
A kind of immersion protection against electric shock chopper as shown in Figure 1, including control line 5 and to perform switch 6,220V single phase acs defeated
Be connected with current mode RCCB 4 in electric line, the current mode RCCB 4 by ZCT, intermediate link, hold
Row mechanism 3 and assay device are constituted, and the switch 6 that performs is electromagnetic leakage protection switch, and the execution switch 6 is disconnected with electric leakage
Road device 4 shares actuator 3, and the discharge end of the transmission line of electricity is connected with socket, earth lead E is also associated with the socket,
Exposed phase line L 1 ~ 2 centimeters of one side being arranged in socket in the one end of the control line 5 and slightly below phase line L, and therebetween not
Contact is off, and the other end of the control line 5 writhing number circle on transformer iron core constitutes the primary winding of transformer
After N1, connect the neutral conductor N of transmission line of electricity.
When in socket immersion water 5, as shown in Fig. 2 earth lead E produces over the ground equivalent resistance R1, neutral conductor N producing over the ground
Equivalent resistance R2, control line 1 produce over the ground equivalent resistance R4, phase line L produce over the ground equivalent resistance R3, phase line L and earth lead E it
Between produce equivalent resistance R5, produce between phase line L and the neutral conductor N equivalent resistance R6, produce between phase line L and control line 1 it is equivalent
Equivalent resistance R8 is produced between resistance R7, neutral conductor N and control line 1, having electric current to flow through control line 1 makes the mutual inductance of execution switch 6
The secondary coil N2 of device produces induction electromotive force, Jing intermediate links control actuator 3 action cut-out transmission line of electricity.
It is distinct that electronic leakage protection switch and electromagnetic leakage protection switch are mainly intermediate link, in this enforcement
It is for a person skilled in the art to be easy to reality to replace electromagnetic leakage protection switch with electronic leakage protection switch in example
Existing；Current mode RCCB, electromagnetic leakage protection switch and electronic leakage protection switch are existing commercially available prod,
Detailed construction is repeated.
Embodiment 2
One kind immersion protection against electric shock chopper, including control line 5 and execution switch 6, the discharge end of DC power transmission line is naked
The end of a thread of dew, execution switch 6 is voltage-type earth leakage protective device, mainly by sample detecting circuit, middle amplifying circuit and is held
Row mechanism three parts composition, wherein sample detecting circuit is made up of reference voltage, sample detecting terminal and comparison circuit etc., control
The exposed end of line processed 5 is arranged in discharge end positive pole 20 centimeters of one side of transmission line of electricity and slightly below discharge end positive pole, the other end
Connection sample detecting terminal positive pole, the negative pole connection transmission line of electricity negative pole of sample detecting terminal, reference voltage is on the basis of the earth.
When the discharge end both threads head of transmission line of electricity is simultaneously overboard, induced voltage, Jing comparison circuits are produced on control line 5
Output control signal, amplified circuit drives actuator cut-out transmission line of electricity after amplifying, realize protection.
Voltage-type earth leakage protective device is existing commercially available prod, and detailed construction is repeated.
Claims (4)
1. a kind of immersion protection against electric shock chopper, it is characterised in that：Including control line（5）With perform switch（6）, the control line
（5）One end is exposed to be arranged in transmission line of electricity phase line（1）Discharge end side and disconnect therebetween, the other end connection perform switch
（6）A signal input part, it is described to perform switch（6）Another signal input part connection the transmission line of electricity neutral conductor（2）, it is described to hold
Row switch（6）Actuating mechanism connection transmission line of electricity.
2. immersion protection against electric shock chopper as claimed in claim 1 a kind of, it is characterised in that：It is described to perform switch（6）For electromagnetism
Formula earth leakage circuit-breaker, or electronic leakage protection switch, or voltage operation type earth leakage circuit-breaker.
3. immersion protection against electric shock chopper as claimed in claim 1 a kind of, it is characterised in that：It is also associated with the transmission line of electricity
RCCB（4）.
4. immersion protection against electric shock chopper as claimed in claim 1 a kind of, it is characterised in that：The control line（5）Exposed one
End is slightly below transmission line of electricity phase line（1）Discharge end place horizontal plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621204701.8U CN206135386U (en) | 2016-11-09 | 2016-11-09 | Protection against electric shock circuit breaker soaks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621204701.8U CN206135386U (en) | 2016-11-09 | 2016-11-09 | Protection against electric shock circuit breaker soaks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206135386U true CN206135386U (en) | 2017-04-26 |
Family
ID=58578332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621204701.8U Withdrawn - After Issue CN206135386U (en) | 2016-11-09 | 2016-11-09 | Protection against electric shock circuit breaker soaks |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206135386U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106340852A (en) * | 2016-11-09 | 2017-01-18 | 陈相如 | Circuit breaker preventing electric shock during immersion |
-
2016
- 2016-11-09 CN CN201621204701.8U patent/CN206135386U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106340852A (en) * | 2016-11-09 | 2017-01-18 | 陈相如 | Circuit breaker preventing electric shock during immersion |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170426 Effective date of abandoning: 20180601 |
|
| AV01 | Patent right actively abandoned |