CN203260841U - Safety-grounding multi-purpose self-check break zero protector - Google Patents
Safety-grounding multi-purpose self-check break zero protector Download PDFInfo
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- CN203260841U CN203260841U CN 201320304818 CN201320304818U CN203260841U CN 203260841 U CN203260841 U CN 203260841U CN 201320304818 CN201320304818 CN 201320304818 CN 201320304818 U CN201320304818 U CN 201320304818U CN 203260841 U CN203260841 U CN 203260841U
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Abstract
The utility model provides a safety-grounding multi-purpose self-check break zero protector which is composed of a single-phase tripolar plug and a plurality of single-phase tripolar sockets. A break zero protective option switch K, indicating lamps SD and test buttons SB are installed in the single-phase tripolar plug or on a first single-phase tripolar socket. The safety-grounding multi-purpose self-check break zero protector is internally provided with a resistor voltage reduction or capacitor voltage reduction energy-saving circuit. When a zero line is disconnected or the zero line is connected with a live line in an external power supply circuit, and the current of a resistor connected between the zero line and a ground line reach to a certain value, a user leakage protector trips immediately, thereby effectively protecting electric equipment of a user from damage. If an indicating lamp SD2 and an indicating lamp SD3 are lightened at the same time, the position of a live line L1 is right, and if not, line connection is wrong and faults need clearing. The safety-grounding multi-purpose self-check break zero protector is advantaged by being simple in circuit, low in cost and convenient to operate, and has very practical values.
Description
Technical field
The utility model relates to safe power supply, safety utilization of electric power, the ground connection of low-voltage power supply system and detects and disconnected zero protector of the slotting Xiao's plate in disconnected zero protection field, the particularly self check of safety ground general-purpose.
Background technology
There is disconnected zero phenomenon in electric power system, particularly the zero line of residential area three-phase and four-line power supply breaks suddenly, will cause part family voltage to be elevated to suddenly above 250V when the three-phase firewire load is serious uneven even reach about 400V, perhaps zero line is disconnected drops on a certain phase firewire, will cause a large amount of household electrical appliance to be burnt, similar accident is not in case generation also has effective safeguard measure at present; Each urban and rural housing or industrial and mining enterprises all use a large amount of single-phase tripolar plug seats at present, some family or enterprise security consciousness are not strong, house decoration and new equipment are installed unearthed line or ground wire does not meet safety requirements, be directed at and finally bring disaster to into the large Woe of loss of life or personal injury, how to find to detect the potential safety hazard of power consumption equipment, lack at present simple and effective measure.The simplest 220 volts of single-phase three pole sockets for example, because to be protection against electric shock jack slit little and baffle plate is housed for existing socket, voltage test pencil or universal meter indicator are difficult for injecting, can't intuitively confirm the problem that ground wire exists, a kind of easy ground connection general-purpose self-checking plug seat of anxious palpus be judged the fail safe of power consumption equipment and the reliability of earth system, to eliminate safe hidden trouble, stop the generation of accident.
Summary of the invention
The purpose of this utility model is for defects, provides a kind of and has disconnected zero protection, satisfies safety requirements, easy and simple to handle, can detect the safety ground general-purpose self check of judging single-phase three pole socket security performances and insert Xiao's plate zero protector that breaks.
The technical solution of the utility model is that disconnected zero protector of Xiao's plate is inserted in the self check of safety ground general-purpose; comprise that disconnected zero protector structure of Xiao's plate is inserted in the self check of safety ground general-purpose and the disconnected zero protector circuit of Xiao's plate is inserted in the self check of safety ground general-purpose; it is characterized in that disconnected zero protector structure of the slotting Xiao's plate of safety ground general-purpose self check forms the self check of safety ground general-purpose by single-phase tripolar plug and a plurality of single-phase three pole sockets and inserts the disconnected zero protector of Xiao's plate; in the single-phase tripolar plug of disconnected zero protector of the slotting Xiao's plate of safety ground general-purpose self check or at first single-phase three pole sockets, disconnected zero protection selector switch K and indicator light SD and test button SB are installed; its inside is equipped with resistance step-down or capacitor step-down energy-saving circuit; be equipped with above it and insert Xiao's plate master switch K0; insert user's single-phase three pole sockets as single-phase tripolar plug CH after; if the correct position of bright explanation live wire L1 of indicator light SD while between indicator light SD and live wire L and the zero line N between safety line E and the live wire L; it is reactionless to depress between live wire L and the zero line N test button SB; single-phase three pole sockets of depressing between safety line E and the live wire L user's earth leakage protective tripping operation explanation user behind the test button SB are safe and reliable, use otherwise there is Miswire to wait to fix a breakdown again.
Disconnected zero protector of Xiao's plate is inserted in the self check of described safety ground general-purpose; it is characterized in that it is zero line N1 contact resistance R1 among the single-phase tripolar plug CHT1 that the disconnected zero protector circuit of Xiao's plate is inserted in the self check of safety ground general-purpose; resistance R 1 other end connects disconnected zero protection selector switch K1; the disconnected zero protection selector switch K1 other end connects safety line E1; disconnected zero protection selector switch K1 is equivalent to resistance R 1 when connecting and is connected across between zero line N1 and the safety line E1; self-checking circuit is that safety line E1 connects disconnected zero protection selector switch K1 simultaneously among the single-phase tripolar plug CHT1; test button SB1; indicator light SD1 and indicator light SD2; indicator light SD1 contact resistance R2; disconnected zero protection selector switch K1 other end contact resistance R1; resistance R 1 other end is connected the other end and is connected together zero line N1 with resistance R; indicator light SD2 other end contact resistance R3; test button SB1 other end contact resistance R4; resistance R 3 other ends are connected the other end and are connected together live wire L1 with resistance R; zero line N1 connects indicator light SD3 and test button SB2; indicator light SD3 other end contact resistance R5; test button SB2 other end contact resistance R6; resistance R 5 other ends are connected the other end and are connected together live wire L1 with resistance R; indicator light SD1; indicator light SD2 and indicator light SD3 use light-emitting diode or neon lamp; resistance R 2 when using light-emitting diode; the resistance of resistance R 5 and resistance R 3 is selected about 82K Ω; can also increase a diode connects with light-emitting diode and improves reverse breakdown voltage protection light-emitting diode; resistance R 2 when using neon lamp; the resistance of resistance R 3 and resistance R 5 is selected more than the 1M Ω; the resistance of resistance R 1 is about 300-500 Ω; the resistance of resistance R 4 and resistance R 6 is about 6.8K Ω; voltage during normal power supply between zero line N1 and the safety line E1 is very faint; when uneven such as the thinner threephase load of the long zero line of supply line; voltage between zero line N1 and the safety line E1 may meet or exceed 5 volts; this is safe to power consumption equipment; in the time of should considering during calculated resistance R0 that voltage between zero line N and the safety line E meets or exceeds 10 volts; must surpass 30 milliamperes by the electric current on the resistance R 1, user's earth leakage protective device can be tripped immediately.
Safety ground general-purpose described in the utility model self check is inserted disconnected zero protector of Xiao's plate and is had disconnected zero protector, there is disconnected zero phenomenon in electric power system, particularly the zero line of residential area three-phase and four-line power supply breaks suddenly, will cause part family voltage to be elevated to suddenly above 250V when the three-phase firewire load is serious uneven even reach about 400V, perhaps zero line is disconnected drops on a certain phase firewire, will cause a large amount of household electrical appliance to be burnt, the phenomenon that disconnected zero protector can avoid electrical appliance to be burnt in case occur in similar accident; Have correct connection to safety ground, the users' such as the safety ground of power supply, electricity consumption, the commercial house, residential quarters, independent resident family etc. and power consumption equipment single-phase three pole socket safety grounds are detected, guarantee safety utilization of electric power.The advantage that the utility model circuit is simple, cost is low, easy to operate, very with practical value.
Description of drawings
The disconnected zero protector external form one planar structure schematic diagram of Xiao's plate is inserted in the self check of Fig. 1 safety ground general-purpose
The disconnected zero protector external form two planar structure schematic diagrames of Xiao's plate are inserted in the self check of Fig. 2 safety ground general-purpose
The disconnected zero protector circuit theory diagrams of Xiao's plate are inserted in the self check of Fig. 3 safety ground general-purpose
L live wire, N zero line, E safety line, CHT single-phase tripolar plug, the disconnected zero protection selector switch of K, SB test button, SD indicator light, single-phase three pole sockets of CHZ, K insert Xiao's plate master switch among Fig. 1 and Fig. 2.
L1 live wire, N1 zero line, E1 safety line, CHT1 single-phase tripolar plug, the disconnected zero protection selector switch of K1, SB1-SB2 test button, SD1-SD3 indicator light, R1-R6 resistance among Fig. 3.
Embodiment
Fig. 1 and Fig. 2 are that the disconnected zero protector external form planar structure schematic diagram of Xiao's plate is inserted in the self check of safety ground general-purpose; the self check of safety ground general-purpose is inserted disconnected zero protector structure of Xiao's plate and is formed disconnected zero protector of the slotting Xiao's plate of safety ground general-purpose self check by single-phase tripolar plug and a plurality of single-phase three pole sockets; in the single-phase tripolar plug of disconnected zero protector of the slotting Xiao's plate of safety ground general-purpose self check or at first single-phase three pole sockets, disconnected zero protection selector switch K and indicator light SD and test button SB are installed; its inside is equipped with resistance step-down or capacitor step-down energy-saving circuit; be equipped with above it and insert Xiao's plate master switch K0; insert user's single-phase three pole sockets as single-phase tripolar plug CH after; if the correct position of bright explanation live wire L1 of indicator light SD while between indicator light SD and live wire L and the zero line N between safety line E and the live wire L; it is reactionless to depress between live wire L and the zero line N test button SB; single-phase three pole sockets of depressing between safety line E and the live wire L user's earth leakage protective tripping operation explanation user behind the test button SB are safe and reliable, use otherwise there is Miswire to wait to fix a breakdown again.
Fig. 3 is that the disconnected zero protector circuit theory diagrams of Xiao's plate are inserted in the self check of safety ground general-purpose; it is zero line N1 contact resistance R1 among the single-phase tripolar plug CHT1 that the disconnected zero protector circuit of Xiao's plate is inserted in the self check of safety ground general-purpose; resistance R 1 other end connects disconnected zero protection selector switch K1; the disconnected zero protection selector switch K1 other end connects safety line E1; disconnected zero protection selector switch K1 is equivalent to resistance R 1 when connecting and is connected across between zero line N1 and the safety line E1; self-checking circuit is that safety line E1 connects disconnected zero protection selector switch K1 simultaneously among the single-phase tripolar plug CHT1; test button SB1; indicator light SD1 and indicator light SD2; indicator light SD1 contact resistance R2; disconnected zero protection selector switch K1 other end contact resistance R1; resistance R 1 other end is connected the other end and is connected together zero line N1 with resistance R; indicator light SD2 other end contact resistance R3; test button SB1 other end contact resistance R4; resistance R 3 other ends are connected the other end and are connected together live wire L1 with resistance R; zero line N1 connects indicator light SD3 and test button SB2; indicator light SD3 other end contact resistance R5; test button SB2 other end contact resistance R6; resistance R 5 other ends are connected the other end and are connected together live wire L1 with resistance R; indicator light SD1; indicator light SD2 and indicator light SD3 use light-emitting diode or neon lamp; resistance R 2 when using light-emitting diode; the resistance of resistance R 5 and resistance R 3 is selected about 82K Ω; can also increase a diode connects with light-emitting diode and improves reverse breakdown voltage protection light-emitting diode; resistance R 2 when using neon lamp; the resistance of resistance R 3 and resistance R 5 is selected more than the 1M Ω; the resistance of resistance R 1 is about 300-500 Ω; the resistance of resistance R 4 and resistance R 6 is about 6.8K Ω; voltage during normal power supply between zero line N1 and the safety line E1 is very faint; when uneven such as the thinner threephase load of the long zero line of supply line; voltage between zero line N1 and the safety line E1 may meet or exceed 5 volts; this is safe to power consumption equipment; in the time of should considering during calculated resistance R0 that voltage between zero line N and the safety line E meets or exceeds 10 volts; must surpass 30 milliamperes by the electric current on the resistance R 1, user's earth leakage protective device can be tripped immediately.
Claims (2)
1. disconnected zero protector of Xiao's plate is inserted in the self check of safety ground general-purpose; comprise that disconnected zero protector structure of Xiao's plate is inserted in the self check of safety ground general-purpose and the disconnected zero protector circuit of Xiao's plate is inserted in the self check of safety ground general-purpose; it is characterized in that disconnected zero protector structure of the slotting Xiao's plate of safety ground general-purpose self check forms the self check of safety ground general-purpose by single-phase tripolar plug and a plurality of single-phase three pole sockets and inserts the disconnected zero protector of Xiao's plate; in the single-phase tripolar plug of disconnected zero protector of the slotting Xiao's plate of safety ground general-purpose self check or at first single-phase three pole sockets, disconnected zero protection selector switch K and indicator light SD and test button SB are installed; its inside is equipped with resistance step-down or capacitor step-down energy-saving circuit; be equipped with above it and insert Xiao's plate master switch K0; insert user's single-phase three pole sockets as single-phase tripolar plug CH after; if the correct position of bright explanation live wire L1 of indicator light SD while between indicator light SD and live wire L and the zero line N between safety line E and the live wire L; it is reactionless to depress between live wire L and the zero line N test button SB; single-phase three pole sockets of depressing between safety line E and the live wire L user's earth leakage protective tripping operation explanation user behind the test button SB are safe and reliable, use otherwise there is Miswire to wait to fix a breakdown again.
2. disconnected zero protector of Xiao's plate is inserted in safety ground general-purpose according to claim 1 self check; it is characterized in that it is zero line N1 contact resistance R1 among the single-phase tripolar plug CHT1 that the disconnected zero protector circuit of Xiao's plate is inserted in the self check of safety ground general-purpose; resistance R 1 other end connects disconnected zero protection selector switch K1; the disconnected zero protection selector switch K1 other end connects safety line E1; disconnected zero protection selector switch K1 is equivalent to resistance R 1 when connecting and is connected across between zero line N1 and the safety line E1; self-checking circuit is that safety line E1 connects disconnected zero protection selector switch K1 simultaneously among the single-phase tripolar plug CHT1; test button SB1; indicator light SD1 and indicator light SD2; indicator light SD1 contact resistance R2; disconnected zero protection selector switch K1 other end contact resistance R1; resistance R 1 other end is connected the other end and is connected together zero line N1 with resistance R; indicator light SD2 other end contact resistance R3; test button SB1 other end contact resistance R4; resistance R 3 other ends are connected the other end and are connected together live wire L1 with resistance R; zero line N1 connects indicator light SD3 and test button SB2; indicator light SD3 other end contact resistance R5; test button SB2 other end contact resistance R6; resistance R 5 other ends are connected the other end and are connected together live wire L1 with resistance R; indicator light SD1; indicator light SD2 and indicator light SD3 use light-emitting diode or neon lamp; resistance R 2 when using light-emitting diode; the resistance of resistance R 5 and resistance R 3 is selected about 82K Ω; can also increase a diode connects with light-emitting diode and improves reverse breakdown voltage protection light-emitting diode; resistance R 2 when using neon lamp; the resistance of resistance R 3 and resistance R 5 is selected more than the 1M Ω; the resistance of resistance R 1 is about 300-500 Ω; the resistance of resistance R 4 and resistance R 6 is about 6.8K Ω; voltage during normal power supply between zero line N1 and the safety line E1 is very faint; when uneven such as the thinner threephase load of the long zero line of supply line; voltage between zero line N1 and the safety line E1 may meet or exceed 5 volts; this is safe to power consumption equipment; in the time of should considering during calculated resistance R0 that voltage between zero line N and the safety line E meets or exceeds 10 volts; must surpass 30 milliamperes by the electric current on the resistance R 1, user's earth leakage protective device can be tripped immediately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320304818 CN203260841U (en) | 2013-05-23 | 2013-05-23 | Safety-grounding multi-purpose self-check break zero protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320304818 CN203260841U (en) | 2013-05-23 | 2013-05-23 | Safety-grounding multi-purpose self-check break zero protector |
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| Publication Number | Publication Date |
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| CN203260841U true CN203260841U (en) | 2013-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320304818 Expired - Fee Related CN203260841U (en) | 2013-05-23 | 2013-05-23 | Safety-grounding multi-purpose self-check break zero protector |
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| CN (1) | CN203260841U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103969541A (en) * | 2013-12-17 | 2014-08-06 | 成都国蓉科技有限公司 | Socket detector convenient to store |
| CN103969542A (en) * | 2013-12-17 | 2014-08-06 | 成都国蓉科技有限公司 | Socket detector |
-
2013
- 2013-05-23 CN CN 201320304818 patent/CN203260841U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103969541A (en) * | 2013-12-17 | 2014-08-06 | 成都国蓉科技有限公司 | Socket detector convenient to store |
| CN103969542A (en) * | 2013-12-17 | 2014-08-06 | 成都国蓉科技有限公司 | Socket detector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131030 Termination date: 20140523 |