CN207166129U - A kind of protection device of power line - Google Patents
A kind of protection device of power line Download PDFInfo
- Publication number
- CN207166129U CN207166129U CN201720736544.3U CN201720736544U CN207166129U CN 207166129 U CN207166129 U CN 207166129U CN 201720736544 U CN201720736544 U CN 201720736544U CN 207166129 U CN207166129 U CN 207166129U
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- China
- Prior art keywords
- capacitor
- zero line
- rccb
- self
- output end
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Abstract
The utility model discloses a kind of protection device of power line, including RCCB, capacitor and Self-recover overvoltage-undervoltage protector；The input of the RCCB is respectively connected to live wire and zero line；The capacitor input is connected with the fire wire output end of RCCB, and the capacitor output is connected with the live wire input of Self-recover overvoltage-undervoltage protector；The zero line output end of the RCCB is directly connected with the zero line input of Self-recover overvoltage-undervoltage protector；The load zero line with user, load live wire are connected respectively for the zero line output end of the Self-recover overvoltage-undervoltage protector, fire wire output end.The utility model circuit structure is simple, and design science is reasonable, can effectively solve due to caused by short circuit electrical equipment damage problem, solves the problems, such as circuit occur short circuit, leak electricity, it is over-pressed, under-voltage in the case of electricity consumption power supply can be disconnected in very short time.
Description
Technical field
It the utility model is related to electric circuit protection equipment field, and in particular to a kind of protection device of power line.
Background technology
Short circuit refers to power system in operation, and improper connection occurs between live wire and zero line.Due to line short
When circuit because electric current can be caused excessive and burnt, it is heavy then trigger fire so as to trigger damage electrical equipment and equipment.
Electric power turns into the basis of society and industrial system operation, with developing rapidly for household electrical appliance, large-scale electricity consumption at present
The increase of equipment so that the phenomenon that supply voltage overloads often, there is the problems such as over-pressed, under-voltage and voltage jump, by
The problem of this causes electrical equipment to burn, circuit burns, and due to this problem, burn-out rate is very high during the use of user, when
It can often occur.
Lack the maintenance of circuit, the aging of circuit and it is artificial it is short-circuit due to, showing for short circuit can occur for partial circuit
As.Current market sales of RCCB and air switch, the person electric shock that may trigger during just for line electrical leakage
Accident, the damage problem due to electrical equipment caused by wire short-circuiting is not can effectively solve the problem that；When circuit occurs short-circuit, still can
Cause electrical equipment to burn the problem of concurrently lighting a fire calamity because circuital current is excessive, the serious personal safety for endangering user and
Property economic loss.
Current market sales of relay, short-circuit protector, overvoltage-undervoltage protector, RCCB, air switch etc.,
They are controlled by electric current, voltage in use, particularly when short trouble occurs for circuit, due to trip operation
Slowly the problem of, needing more circuit multicomponents to be used cooperatively, failure do not have the effect of protection when occurring.
Utility model content
In order to solve the above problems, the utility model proposes a kind of protection device of power line, the utility model circuit knot
Structure is simple, and design science is reasonable, can effectively solve, because electrical equipment caused by short circuit damages problem, it is short in generation to solve circuit
Road, electric leakage, overvoltage, it is under-voltage in the case of the problem of electricity consumption power supply can be disconnected in very short time；The utility model is not by electricity
Stream, the influence of voltage swing, can be effectively protected circuit and electrical equipment.
The technical solution of the utility model：
It is proposed a kind of protection device of power line, the protection device of the power line include RCCB, capacitor and
Self-recover overvoltage-undervoltage protector；The input of the RCCB is respectively connected to live wire and zero line；The capacitor input
It is connected with the fire wire output end of RCCB, the live wire input of the capacitor output and Self-recover overvoltage-undervoltage protector
End is connected；The zero line output end of the RCCB is directly connected with the zero line input of Self-recover overvoltage-undervoltage protector
Connect；The zero line output end of the Self-recover overvoltage-undervoltage protector, fire wire output end the load zero line with user, load live wire respectively
It is connected；The capacitor is non-polar.
General plotting of the present utility model：When improper connection occurs for live wire and zero line, electric capacity is by the electricity of whole circuit
Pressure drop is zero, random to trigger Self-recover overvoltage-undervoltage protector and RCCB, and power-off protection is carried out to circuit.
Further, the zero line of the access and live wire are all the supply lines of 220V mains supply voltages.
Further, the connected mode of the capacitor and live wire includes simply connected, in parallel and serial.
Further, the connected mode of the capacitor and live wire in parallel and serial when, the quantity of capacitor for two or
Two or more.
The beneficial effects of the utility model：
1st, simple in construction, installation and replacing are very quick；
2nd, when circuit occurs short circuit, electric leakage, gets an electric shock, overload, be over-pressed, under-voltage, the utility model can be automatic in 0.1s
User power utilization power supply is disconnected, reaction speed is fast；
3rd, when circuit occurs short circuit, electric leakage, gets an electric shock, overload, be over-pressed, under-voltage, the utility model does not burn out circuit and electricity consumption
Equipment, and then avoid that fire occurs；
4th, the utility model circuit structure is simple, and design science is reasonable, can effectively solve due to electric caused by short circuit
Device damage problem, solve circuit occur short circuit, electric leakage, it is over-pressed, under-voltage in the case of electricity consumption can be disconnected in very short time
The problem of power supply；The utility model is not influenceed by electric current, voltage swing, can be effectively protected circuit and electrical equipment.
Brief description of the drawings
Fig. 1 is the circuit diagram of simply connected capacitor of the present utility model；
Fig. 2 is dual-capacitor of the present utility model circuit diagram in parallel；
Fig. 3 is the circuit diagram of dual-capacitor of the present utility model series connection；
Title and sequence number in figure：
RCCB 1, simply connected electric capacity 2, double electric capacity 3 in parallel, series connection double electric capacity 4, Self-recover overvoltage-undervoltage protectors 5.
Embodiment
The utility model is further illustrated below in conjunction with the accompanying drawings.
Embodiment 1：
As shown in Figure 1, there is provided a kind of protection device of power line, the protection device of the power line include leakage, breaking
Device, capacitor and Self-recover overvoltage-undervoltage protector 5；The input of the RCCB 1 is respectively connected to live wire and zero line；It is described
Capacitor input is connected with the fire wire output end of RCCB 1, and the capacitor output is protected with Self-recover overvoltage-undervoltage
The live wire input of shield device 5 is connected；The zero line output end of the RCCB 1 directly with Self-recover overvoltage-undervoltage protector 5
Zero line input be connected；The zero line output end of the Self-recover overvoltage-undervoltage protector, fire wire output end are respectively with user's
Load zero line, load live wire are connected；The capacitor is non-polar；The zero line and live wire of the access are all 220V civil powers
The supply line of alternating supply voltage.
The connected mode of the capacitor and live wire is simply connected.
Embodiment 2：
As shown in Fig. 2 the present embodiment and the difference of embodiment 1 are：The connected mode of the capacitor and live wire is double
Electric capacity is in parallel.
Embodiment 3：
As shown in figure 3, the present embodiment and the difference of embodiment 1 are：The connected mode of the capacitor and live wire is double
Electric capacity is connected.
It is pointed out that above-described embodiment is only to illustrate technical concepts and features of the present utility model, its object is to
Allow person skilled in the art to understand content of the present utility model and implement according to this, it is new that this practicality can not be limited with this
The protection domain of type.All equivalent change or modifications made according to the utility model Spirit Essence, it should all cover new in this practicality
Within the protection domain of type.
Claims (4)
- A kind of 1. protection device of power line, it is characterised in that：The protection device of the power line includes RCCB, electric capacity Device and Self-recover overvoltage-undervoltage protector；The input of the RCCB is respectively connected to live wire and zero line；The capacitor is defeated Enter end with the fire wire output end of RCCB to be connected, the live wire of the capacitor output and Self-recover overvoltage-undervoltage protector Input is connected；Zero line input phase of the zero line output end of the RCCB directly with Self-recover overvoltage-undervoltage protector Connection；The load zero line with user, load are fiery respectively for the zero line output end of the Self-recover overvoltage-undervoltage protector, fire wire output end Line is connected；The capacitor is non-polar.
- 2. the protection device of power line according to claim 1, it is characterised in that：The zero line and live wire of the access be all The supply line of 220V mains supply voltages.
- 3. the protection device of power line according to claim 1, it is characterised in that：The connection side of the capacitor and live wire Formula includes simply connected, in parallel and serial.
- 4. the protection device of power line according to claim 3, it is characterised in that：The connection side of the capacitor and live wire When formula is in parallel and serial, the quantity of capacitor is two or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720736544.3U CN207166129U (en) | 2017-06-23 | 2017-06-23 | A kind of protection device of power line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720736544.3U CN207166129U (en) | 2017-06-23 | 2017-06-23 | A kind of protection device of power line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207166129U true CN207166129U (en) | 2018-03-30 |
Family
ID=61711746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720736544.3U Expired - Fee Related CN207166129U (en) | 2017-06-23 | 2017-06-23 | A kind of protection device of power line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207166129U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111509498A (en) * | 2020-05-11 | 2020-08-07 | 任丘市物仪电子有限公司 | Safety instrument power cord |
-
2017
- 2017-06-23 CN CN201720736544.3U patent/CN207166129U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111509498A (en) * | 2020-05-11 | 2020-08-07 | 任丘市物仪电子有限公司 | Safety instrument power cord |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180330 Termination date: 20190623 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |