CN203813142U - Faulted neutral line protection and grounding universal self-checking single-phase three-pole connected connector assembly - Google Patents
Faulted neutral line protection and grounding universal self-checking single-phase three-pole connected connector assembly Download PDFInfo
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- CN203813142U CN203813142U CN201420247642.7U CN201420247642U CN203813142U CN 203813142 U CN203813142 U CN 203813142U CN 201420247642 U CN201420247642 U CN 201420247642U CN 203813142 U CN203813142 U CN 203813142U
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Abstract
The utility model discloses a faulted neutral line protection and grounding universal self-checking single-phase three-pole connected connector assembly. The faulted neutral line protection is characterized in that a resistor is connected between a neutral line and a ground line of the single-phase three-pole connected connector assembly in a bridged manner, and the resistor is controlled by a selection switch; when the neutral line of the external power supply line is broken or is overlapped on the hot line, and the current of the resistor connected between the neutral line and the ground line rises to a certain value, the trip-out of the user leakage protector can be carried out immediately, and therefore the user equipment can be effectively prevented from being damaged. The grounding universal self-checking connector assembly is characterized in that the faulted neutral line protection selection switch, the safety self-checking indicating lamps, and the testing buttons are disposed in the self-checking connector assembly; and when an indicating lamp SD2 and an indicating lamp SD3 are turned on at the same time, the position of the hot line L1 is correct, otherwise the connection is wrong, and the connector assembly can be used only after the removal of the fault. The faulted neutral line protection and grounding universal self-checking single-phase three-pole connected connector assembly has advantages of simple circuit, low costs, convenient operation, and practical value.
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 protection off zero field, particularly protection off zero and single-phase three utmost point disjunctor connector assemblies of ground connection general-purpose self-inspection.
Background technology
There is phenomenon off zero in electric power system, particularly the zero line of residential quarter three-phase and four-line power supply breaks suddenly, when three-phase firewire load is serious uneven, will cause part family voltage to be elevated to suddenly to exceed 250V and even reach 400V left and right, or zero line is disconnected to be dropped on a certain phase firewire, will cause a large amount of household electrical appliance to be burnt, once similar accident occurs, and also there is no at present effective safeguard measure; Current each urban and rural housing or industrial and mining enterprises are all used a large amount of single-phase tripolar plug seats, 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 loss of life or personal injury great misfortune, how to find to detect the potential safety hazard of power consumption equipment, lack at present simple and effective measure.For example the simplest 220 volts of single-phase three pole sockets, because existing socket is that protection against electric shock jack gap is little and baffle plate is housed, voltage test pencil or universal meter indicator are difficult for injecting, cannot intuitively confirm the problem that ground wire exists, a kind of easy ground connection general-purpose self-checking plug seat of anxious palpus judge 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 above-mentioned defect, provides one to have protection off zero, meets safety requirements, easy and simple to handle, can detect the protection off zero and single-phase three utmost point disjunctor connector assemblies of ground connection general-purpose self-inspection that judge single-phase three pole socket security performances.
The technical solution of the utility model is single-phase three utmost point disjunctor connector assemblies of protection off zero and the self-inspection of ground connection general-purpose, comprise single-phase three utmost point disjunctor connector assemblies of protection off zero and the self-inspection of ground connection general-purpose and the protection off zero of resistance voltage-dropping type and ground connection general-purpose self-checking plug seat circuit, it is characterized in that single-phase three utmost point disjunctor connector assemblies are that single-phase tripolar plug and single-phase three pole sockets are connected as a single entity, the back of single-phase tripolar plug is single-phase three pole sockets, the protection off zero of resistance voltage-dropping type is installed in its inside and ground connection general-purpose self-checking plug seat circuit forms protection off zero and single-phase three utmost point disjunctor connector assemblies of ground connection general-purpose self-inspection, the circuit structure of protection off zero is current-limiting resistance of connecting with protection selector switch K off zero of cross-over connection between zero line N and safety line E in single-phase tripolar plug seat CH, protection selector switch K off zero opens protection off zero while connection, the circuit structure of general-purpose self-inspection is that self-inspection indicator light SD and test button SB are installed respectively between safety line E and live wire L and between safety ground E and zero line N and between live wire L and zero line N, self-inspection indicator light SD is in series with dropping resistor or decompression capacitor, test button SB is in series with current-limiting resistance or current limiting capacitance, bright and secretly judge safety line E1 and zero line N1 and live wire L1 whether position is correct separately according to indicator light SD, further confirm by test button SB again, when single-phase tripolar plug seat CH inserts after user's single-phase three pole sockets, if the indicator light SD3 correct position of bright explanation live wire L1 simultaneously between indicator light SD and live wire L and zero line N between safety line E and live wire L, depress between live wire L and zero line N test button SB reactionless, single-phase three pole sockets of depressing between safety line E and live wire L user's earth leakage protective tripping operation explanation user after test button SB are safe and reliable, otherwise having Miswire to wait to fix a breakdown uses again.
Single-phase three utmost point disjunctor connector assemblies of described protection off zero and the self-inspection of ground connection general-purpose, comprise the protection off zero of resistance voltage-dropping type and ground connection general-purpose self-checking plug seat circuit, it is characterized in that installing protection selector switch off zero and safe self-inspection indicator light and test An Button on slotting Xiao's plate of single-phase three utmost point disjunctor connector assemblies or single-phase tripolar plug or single-phase three pole sockets or multiple single-phase three utmost point jacks, the circuit structure of protection off zero is zero line N1 contact resistance R1 in single-phase tripolar plug CHT1, resistance R 1 other end connects protection selector switch K1 off zero, the protection selector switch K1 other end off zero connects safety line E1, protection selector switch K1 off zero is equivalent to resistance R 1 while connection and is connected across between zero line N1 and safety line E1, single-phase tripolar plug CHT1 inserts single-phase three pole sockets of user, in the time that externally fed circuit occurs that zero line disconnects or rides on live wire, due to the different three-phase voltage disequilibriums of three phase supply power source loads, between user's zero line N1 and safety line E1, voltage may increase, the Current rise that is connected across resistance R 1 between zero line N1 and safety line E1 is during to a certain numerical value, user's earth leakage protective can trip immediately, effectively protection user's power consumption equipment exempts from damage, between safety line E1 and live wire L1 and between safety ground E1 and zero line N1 and between live wire L1 and zero line N1, self-inspection indicator light and test button are installed respectively, bright and secretly judge safety line E1 and zero line N1 and live wire L1 whether position is correct separately according to indicator light, further confirm by test button again, particular circuit configurations is that in single-phase tripolar plug CHT1, safety line E1 connects protection selector switch K1 off zero simultaneously, test button SB1, indicator light SD1 and indicator light SD2, indicator light SD1 contact resistance R2, protection selector switch K1 other end contact resistance R1 off zero, resistance R 1 other end is connected zero line N1 together with resistance R 2 other ends, indicator light SD2 other end contact resistance R3, test button SB1 other end contact resistance R4, resistance R 3 other ends are connected live wire L1 together with resistance R 4 other ends, 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 live wire L1 together with resistance R 6 other ends, indicator light SD1, indicator light SD2 and indicator light SD3 use light-emitting diode or neon lamp, resistance R 2 while using light-emitting diode, the resistance of resistance R 5 and resistance R 3 is selected 82K Ω left and right, can also increase a diode connects with light-emitting diode and improves reverse breakdown voltage protection light-emitting diode, resistance R 2 while using neon lamp, more than the resistance of resistance R 3 and resistance R 5 is selected 1M Ω, when single-phase tripolar plug CHT1 inserts in user's single-phase three pole sockets, if indicator light SD2 and indicator light SD3 be the correct position of bright explanation live wire L1 simultaneously, depress test button SB2 reactionless, after depressing test button SB1, the tripping operation of user's earth leakage protective illustrates that user's single-phase three pole sockets are safe and reliable, otherwise having Miswire to wait to fix a breakdown uses again, the resistance of resistance R 1 is 300-500 Ω left and right, the resistance of resistance R 4 and resistance R 6 is 6.8K Ω left and right.
Single-phase three utmost point disjunctor connector assemblies of protection off zero described in the utility model and the self-inspection of ground connection general-purpose have protector off zero, there is phenomenon off zero in electric power system, particularly the zero line of residential quarter three-phase and four-line power supply breaks suddenly, when three-phase firewire load is serious uneven, will cause part family voltage to be elevated to suddenly to exceed 250V and even reach 400V left and right, or zero line is disconnected to be dropped on a certain phase firewire, will cause a large amount of household electrical appliance to be burnt, once similar accident occurs, the phenomenon that protector off zero can avoid electrical appliance to be burnt; The single-phase three pole socket safety grounds with the correct connection to safety ground, the user such as safety ground and power consumption equipment to power supply, electricity consumption, the commercial house, residential quarters, independent resident family etc. detect, and 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.
Brief description of the drawings
Single-phase three utmost point disjunctor connector assembly profile schematic diagrames of Fig. 1 protection off zero and the self-inspection of ground connection general-purpose
The protection off zero of Fig. 2 resistance voltage-dropping type and general-purpose self-checking plug seat circuit one schematic diagram
The protection off zero of Fig. 3 resistance voltage-dropping type and general-purpose self-checking plug seat circuit two schematic diagrams
L live wire, N zero line, E safety line, single-phase three utmost point disjunctor connector assemblies of CH, K protection selector switch off zero, SB test button, SD indicator light in Fig. 1.
L1 live wire, N1 zero line, E1 safety line, CHT1 single-phase tripolar plug, K1 protection selector switch off zero, SB1-SB2 test button, SD1-SD3 indicator light, R1-R6 resistance in Fig. 2.
L1 live wire, N1 zero line, E1 safety line, CHT1 single-phase tripolar plug, K1 protection selector switch off zero, SB1-SB2 test button, SD1-SD3 indicator light, R1-R6 resistance in Fig. 3.
Embodiment
Fig. 1 is single-phase three utmost point disjunctor connector assembly profile schematic diagrames of protection off zero and the self-inspection of ground connection general-purpose, execution mode: single-phase three utmost point disjunctor connector assemblies in single-phase three utmost point disjunctor connector assemblies of protection off zero and the self-inspection of ground connection general-purpose are that single-phase tripolar plug and single-phase three pole sockets are connected as a single entity, the back of single-phase tripolar plug is single-phase three pole sockets, the protection off zero of resistance voltage-dropping type is installed in its inside and ground connection general-purpose self-checking plug seat circuit forms protection off zero and single-phase three utmost point disjunctor connector assemblies of ground connection general-purpose self-inspection, the circuit structure of protection off zero is one of the cross-over connection current-limiting resistance of connecting with protection selector switch K off zero between zero line N and safety line E in single-phase tripolar plug seat CH, protection selector switch K off zero opens protection off zero while connection, the circuit structure of general-purpose self-inspection is that self-inspection indicator light SD and test button SB are installed respectively between safety line E and live wire L and between safety ground E and zero line N and between live wire L and zero line N, self-inspection indicator light SD is in series with dropping resistor or decompression capacitor, test button SB is in series with current-limiting resistance or current limiting capacitance, bright and secretly judge safety line E1 and zero line N1 and live wire L1 whether position is correct separately according to indicator light SD, further confirm by test button SB again, operation principle is to insert after user's single-phase three pole sockets as single-phase tripolar plug seat CH, if the indicator light SD3 correct position of bright explanation live wire L1 simultaneously between indicator light SD and live wire L and zero line N between safety line E and live wire L, depress between live wire L and zero line N test button SB reactionless, single-phase three pole sockets of depressing between safety line E and live wire L user's earth leakage protective tripping operation explanation user after test button SB are safe and reliable, otherwise having Miswire to wait to fix a breakdown uses again.Protection off zero is in the time that externally fed circuit occurs that zero line disconnects or rides on live wire; due to the different three-phase voltage disequilibriums of three phase supply power source loads; between user's zero line N1 and safety line E1, voltage may increase; the Current rise that is connected across resistance R 1 between zero line N1 and safety line E1 is during to a certain numerical value; zero line N1 exceedes live wire L1 electric current and is also equivalent to electric leakage; user's earth leakage protective can trip immediately, effectively protects user's power consumption equipment to exempt from damage.
Fig. 2, Fig. 3 is the protection off zero of resistance voltage-dropping type and general-purpose self-checking plug seat circuit theory diagrams, execution mode is that the protection off zero of resistance voltage-dropping type and ground connection general-purpose self-checking plug seat are protection selector switch off zero and safe self-inspection indicator light and test to be installed on slotting Xiao's plate of single-phase three utmost point disjunctor connector assemblies or single-phase tripolar plug or single-phase three pole sockets or multiple single-phase three utmost point jacks An Button, the circuit structure of protection off zero is zero line N1 contact resistance R1 in single-phase tripolar plug CHT1, resistance R 1 other end connects protection selector switch K1 off zero, the protection selector switch K1 other end off zero connects safety line E1, protection selector switch K1 off zero is equivalent to resistance R 1 while connection and is connected across between zero line N1 and safety line E1, operation principle is that single-phase tripolar plug CHT1 inserts single-phase three pole sockets of user, in the time that externally fed circuit occurs that zero line disconnects or rides on live wire, due to the different three-phase voltage disequilibriums of three phase supply power source loads, between user's zero line N1 and safety line E1, voltage may increase, the Current rise that is connected across resistance R 1 between zero line N1 and safety line E1 is during to a certain numerical value, user's earth leakage protective can trip immediately, effectively protection user's power consumption equipment exempts from damage, between safety line E1 and live wire L1 and between safety ground E1 and zero line N1 and between live wire L1 and zero line N1, self-inspection indicator light and test button are installed respectively, bright and secretly judge safety line E1 and zero line N1 and live wire L1 whether position is correct separately according to indicator light, further confirm by test button again, execution mode is that in single-phase tripolar plug CHT1, safety line E1 connects protection selector switch K1 off zero simultaneously, test button SB1, indicator light SD1 and indicator light SD2, indicator light SD1 contact resistance R2, protection selector switch K1 other end contact resistance R1 off zero, resistance R 1 other end is connected zero line N1 together with resistance R 2 other ends, indicator light SD2 other end contact resistance R3, test button SB1 other end contact resistance R4, resistance R 3 other ends are connected live wire L1 together with resistance R 4 other ends, 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 live wire L1 together with resistance R 6 other ends, indicator light SD1, indicator light SD2 and indicator light SD3 use light-emitting diode or neon lamp, resistance R 2 while using light-emitting diode, the resistance of resistance R 5 and resistance R 3 is selected 82K Ω left and right, can also increase a diode connects with light-emitting diode and improves reverse breakdown voltage protection light-emitting diode, resistance R 2 while using neon lamp, more than the resistance of resistance R 3 and resistance R 5 is selected 1M Ω.Principle explanation: when single-phase tripolar plug CHT1 inserts in user's single-phase three pole sockets; if indicator light SD2 and indicator light SD3 be the correct position of bright explanation live wire L1 simultaneously; depress test button SB2 reactionless; button SB1 is leak(age) test button; after depressing test button SB1, the tripping operation of user's earth leakage protective illustrates that user's single-phase three pole sockets are safe and reliable; otherwise having Miswire to wait to fix a breakdown uses again; the resistance of resistance R 1 is 300-500 Ω left and right, and the resistance of resistance R 4 and resistance R 6 is 6.8K Ω left and right.
Claims (2)
1. single-phase three utmost point disjunctor connector assemblies of protection off zero and the self-inspection of ground connection general-purpose, comprise single-phase three utmost point disjunctor connector assemblies of protection off zero and the self-inspection of ground connection general-purpose and the protection off zero of resistance voltage-dropping type and ground connection general-purpose self-checking plug seat circuit, it is characterized in that single-phase three utmost point disjunctor connector assemblies of protection off zero and the self-inspection of ground connection general-purpose are that single-phase tripolar plug and single-phase three pole sockets are connected as a single entity, the back of single-phase tripolar plug is single-phase three pole sockets, the protection off zero of resistance voltage-dropping type is installed in its inside and ground connection general-purpose self-checking plug seat circuit forms protection off zero and single-phase three utmost point disjunctor connector assemblies of ground connection general-purpose self-inspection, the circuit structure of protection off zero is current-limiting resistance of connecting with protection selector switch K off zero of cross-over connection between zero line N and safety line E in single-phase tripolar plug seat CH, protection selector switch K off zero opens protection off zero while connection, the circuit structure of general-purpose self-inspection is that self-inspection indicator light SD and test button SB are installed respectively between safety line E and live wire L and between safety ground E and zero line N and between live wire L and zero line N, self-inspection indicator light SD is in series with dropping resistor or decompression capacitor, test button SB is in series with current-limiting resistance or current limiting capacitance.
2. single-phase three utmost point disjunctor connector assemblies of protection off zero and the self-inspection of ground connection general-purpose according to claim 1, comprise the protection off zero of resistance voltage-dropping type and ground connection general-purpose self-checking plug seat circuit, it is characterized in that installing protection selector switch off zero and safe self-inspection indicator light and test An Button on protection off zero and single-phase three utmost point disjunctor connector assemblies of ground connection general-purpose self-inspection or single-phase tripolar plug or single-phase three pole sockets, the circuit structure of protection off zero is zero line N1 contact resistance R1 in single-phase tripolar plug CHT1, resistance R 1 other end connects protection selector switch K1 off zero, the protection selector switch K1 other end off zero connects safety line E1, protection selector switch K1 off zero is equivalent to resistance R 1 while connection and is connected across between zero line N1 and safety line E1, between safety line E1 and live wire L1 and between safety ground E1 and zero line N1 and between live wire L1 and zero line N1, self-inspection indicator light and test button are installed respectively, particular circuit configurations is that in single-phase tripolar plug CHT1, safety line E1 connects protection selector switch K1 off zero simultaneously, test button SB1, indicator light SD1 and indicator light SD2, indicator light SD1 contact resistance R2, protection selector switch K1 other end contact resistance R1 off zero, resistance R 1 other end is connected zero line N1 together with resistance R 2 other ends, indicator light SD2 other end contact resistance R3, test button SB1 other end contact resistance R4, resistance R 3 other ends are connected live wire L1 together with resistance R 4 other ends, zero line N1 connects indicator light SD3 and test button SB2, indicator light S93 other end contact resistance R5, test button SB2 other end contact resistance R6, resistance R 5 other ends are connected live wire L1 together with resistance R 6 other ends, indicator light SD1, indicator light SD2 and indicator light SD3 use light-emitting diode or neon lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420247642.7U CN203813142U (en) | 2013-05-16 | 2013-05-16 | Faulted neutral line protection and grounding universal self-checking single-phase three-pole connected connector assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420247642.7U CN203813142U (en) | 2013-05-16 | 2013-05-16 | Faulted neutral line protection and grounding universal self-checking single-phase three-pole connected connector assembly |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320288849.4U Division CN203760767U (en) | 2013-05-16 | 2013-05-16 | Grounding all-purpose self-checking plug head seat having null-line disconnection protection function |
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| Publication Number | Publication Date |
|---|---|
| CN203813142U true CN203813142U (en) | 2014-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420247642.7U Expired - Fee Related CN203813142U (en) | 2013-05-16 | 2013-05-16 | Faulted neutral line protection and grounding universal self-checking single-phase three-pole connected connector assembly |
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| CN (1) | CN203813142U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104103973A (en) * | 2013-05-16 | 2014-10-15 | 介国安 | Zero protection and grounding general self-inspection single-phase three-pole integrated socket |
-
2013
- 2013-05-16 CN CN201420247642.7U patent/CN203813142U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104103973A (en) * | 2013-05-16 | 2014-10-15 | 介国安 | Zero protection and grounding general self-inspection single-phase three-pole integrated socket |
| CN104103973B (en) * | 2013-05-16 | 2017-04-12 | 介国安 | Zero protection and grounding general self-inspection single-phase three-pole integrated socket |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140903 Termination date: 20180516 |