CN103296541A - Universal plug with null-line cutoff protection, ground connection and self-checking functions - Google Patents
Universal plug with null-line cutoff protection, ground connection and self-checking functions Download PDFInfo
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- CN103296541A CN103296541A CN2013102026177A CN201310202617A CN103296541A CN 103296541 A CN103296541 A CN 103296541A CN 2013102026177 A CN2013102026177 A CN 2013102026177A CN 201310202617 A CN201310202617 A CN 201310202617A CN 103296541 A CN103296541 A CN 103296541A
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Abstract
The invention discloses a universal plug with null-line cutoff protection, ground connection and self-checking functions. The null-line cutoff protection function is achieved by connecting a resistor between a null line and a ground wire at an output end of a user earth-leakage protector; when the null line of external power supply lines is cut off or is lapped to a live wire, current of the resistor connected between the null line and the ground wire is increased to a certain value, and then the user earth-leakage protector trips immediately, so that power utilized equipment of users is protected effectively. A null-line cutoff protection selective switch, safety self-checking indicator lights and test buttons are mounted inside the universal plug. If both the indicator lights SD2 and SD3 are light, then position of the live wire L1 is corrected, otherwise, the live wire L1 is wrong in connection and the equipment can be used only after the fault is removed. The universal plug has the advantages of simple circuits, low cost, operational convenience and high practical value.
Description
Technical field
The safe power supply, safety utilization of electric power, the ground connection that the present invention relates to low-voltage power supply system are detected and disconnected zero protection field, particularly disconnected zero protection and ground connection general-purpose self check connector assembly.
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, the three-phase firewire load will cause part family voltage to be elevated to above 250V suddenly when 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 three-terminal polarized plus 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 loss of life or personal injury great misfortune, how to find to detect the potential safety hazard of power consumption equipment, lack simple and effective means and method at present.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 check connector assembly 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 objective of the invention is at above-mentioned defective, provide a kind of and have disconnected zero protection, satisfy safety requirements, easy and simple to handle, can detect disconnected zero the protection and ground connection general-purpose self check connector assembly of judging single-phase three pole socket security performances.
Technical scheme of the present invention is disconnected zero protection and ground connection general-purpose self check connector assembly; comprise disconnected zero protector; it is characterized in that in user's distribution box or disconnected zero protector is installed in the subscriber's drop switch enclosure or on the single-phase three-terminal polarized plus plug of power consumption equipment or in the electrical appliance equipment; disconnected zero protector is to constitute with user's power supply earth leakage protective device or power consumption equipment earth leakage protective device or cooperate earth leakage protective device to constitute; circuit structure is resistance R 0 of cross-over connection on the zero line N0 of user's earth leakage protective device RCD0 output and safety line E0; one end of resistance R 0 connects zero line N0; the other end of resistance R 0 connects ground wire E0; or resistance R 0 is installed in the single-phase three pole socket CHZ0 is connected between zero line N0 and the safety line E0; or resistance R 0 is installed in is connected between zero line N0 and the safety line E0 in the single-phase three-terminal polarized plus plug CHT0; single-phase three pole socket CHT0 insert single-phase three pole socket CHZ0; when the externally fed circuit zero line disconnection occurs or rides on the live wire; because three phase supply power source loads difference causes the three-phase voltage disequilibrium; voltage difference increases suddenly between user's zero line N0 and the safety line E0; be connected electric current on the resistance R 0 between zero line N0 and the safety line E0 when rising to a certain numerical value; user's earth leakage protective device RCD0 can trip immediately; effectively protection user's power consumption equipment exempts from damage; voltage during normal power supply between zero line N0 and the safety line E0 is very faint; when uneven as the thin threephase load of the long zero line of supply line; voltage between zero line N0 and the safety line E0 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 N0 and the safety line E0 meets or exceeds 10 volts; must surpass 30 milliamperes by the electric current on the resistance R 0, user's earth leakage protective device RCD0 can be tripped immediately.
Described disconnected zero protection and ground connection general-purpose self check connector assembly; comprise disconnected zero protector of relay control type; it is characterized in that with AC relay or A.C. contactor control power supply; the action power dump when voltage between another AC relay or overcurrent relay control zero line and the safety line or electric current surpass a certain numerical value; particular circuit configurations is that the live wire L of power supply is connected contactor KM0 normally opened contact respectively with zero line N; the other end live wire L01 of contactor KM0 normally opened contact is connected single-phase three pole sockets or electrical appliance with zero line N01; A.C. contactor KM0 coil one end connects zero line N; the other end of A.C. contactor KM0 coil connects AC relay J01 normally-closed contact; the other end of AC relay J01 normally-closed contact connects live wire L01 and button SB01 normally opened contact; the button SB01 normally opened contact other end connects live wire L; be connected an AC relay J01 between zero line N01 and the safety line E01; be exactly that AC relay J01 coil one end connects zero line N01; the AC relay J01 coil other end connects current-limiting resistance R01; the other end of current-limiting resistance R01 connects safety line E01; if control A.C. contactor KM0 cut off the electricity supply when voltage difference was increased to AC relay J01 action between zero line N01 and the safety line E0; the electrical appliance of single-phase three pole sockets or other power consumption equipment have all obtained protection; overvoltage indicator light circuit structure is that resistance R 03 1 ends connect live wire L; resistance R 03 other end connects resistance R 02; anodal and LED 1 negative pole of diode D01; LED 1 cathode connecting diode D02 negative pole; the anodal voltage stabilizing didoe DW01 positive pole that connects of diode D02; the negative pole of the other end of resistance R 02 and diode D01 and voltage stabilizing didoe DW01 negative pole are connected zero line N01 together; when the externally fed circuit zero line disconnection occurred or rides on the live wire, voltage was elevated to bright above overvoltage indicator light LED 1 behind the 250V suddenly.
Described disconnected zero protection and ground connection general-purpose self check connector assembly; comprise disconnected zero protection and the ground connection general-purpose self check connector assembly of resistance voltage-dropping type; it is characterized in that at slotting Xiao's plate of single-phase three utmost point disjunctor connector assemblies or single-phase three-terminal polarized plus plug or single-phase three pole sockets or a plurality of single-phase three utmost point jacks disconnected zero protection selector switch and safe self check indicator light and test button being installed; the circuit structure of disconnected zero protection is that zero line N1 connects resistance R 1 among the single-phase three-terminal polarized plus plug CHT1; 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; single-phase three-terminal polarized plus plug CHT1 inserts single-phase three pole sockets of user; when the externally fed circuit zero line disconnection occurs or rides on the live wire; because the different three-phase voltage disequilibriums of three phase supply power source loads; voltage may increase between user's zero line N1 and the safety line E1; when the electric current that is connected across resistance R 1 between zero line N1 and the safety line E1 rises 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 the live wire L1 and between safety ground E1 and the zero line N1 and between live wire L1 and the zero line N1 self check indicator light and test button are installed respectively; bright whether the position is correct separately with secretly judging safety line E1 and zero line N1 and live wire L1 according to indicator light; further confirm by test button again; particular circuit configurations is that safety line E1 connects disconnected zero protection selector switch K1 simultaneously among the single-phase three-terminal polarized plus plug CHT1; test button SB1; indicator light SD1 and indicator light SD2; indicator light SD1 connects resistance R 2; the disconnected zero protection selector switch K1 other end connects resistance R 1; resistance R 1 other end is connected zero line N1 together with resistance R 2 other ends; the indicator light SD2 other end connects resistance R 3; the test button SB1 other end connects resistance R 4; 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; the indicator light SD3 other end connects resistance R 5; the test button SB2 other end connects resistance R 6; 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 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; when single-phase three-terminal polarized plus 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; it is reactionless to depress test button SB2; the tripping operation of user's earth leakage protective illustrates that user's single-phase three pole sockets are safe and reliable after depressing test button SB1; otherwise having Miswire to wait to fix a breakdown uses again; the resistance of resistance R 1 is about 300-500 Ω, and the resistance of resistance R 4 and resistance R 6 is about 6.8K Ω.
Described disconnected zero protection and ground connection general-purpose self check connector assembly; comprise energy-saving disconnected zero protection and the ground connection general-purpose self check connector assembly of capacitor step-down; it is characterized in that capacitance decompression can economize on electricity; particular circuit configurations is the positive pole that safety line E2 connects diode D1 simultaneously among the single-phase three-terminal polarized plus plug CHT2; the positive pole of diode D2; LED 1 negative pole; LED 2 negative poles; disconnected zero protection selector switch K2 and test button SB3; diode D1 negative pole connects LED 1 anodal and capacitor C1; the disconnected zero protection selector switch K2 other end connects capacitor C2; the capacitor C1 other end is connected zero line N2 together with the capacitor C2 other end; diode D2 negative pole connects LED 2 anodal and capacitor C3; the test button SB3 other end connects capacitor C4; the capacitor C3 other end is connected live wire L2 together with the capacitor C4 other end; zero line N2 connects the positive pole of diode D3; LED 3 negative poles and test button SB4; diode D3 negative pole connects LED 3 anodal and capacitor C5; the test button SB4 other end connects capacitor C6; the capacitor C5 other end is connected live wire L2 together with the capacitor C6 other end; the selection of condenser capacity current related with by light-emitting diode and diode; 2 to 3 milliamperes in the electric current of the bright attitude of light-emitting diode; use capacitor step-down can economize on electricity more than 90% than resistance step-down; though the electric current by test button need be greater than 30 milliamperes; because conduction time just in a flash; consider the still optional resistance of using of cost; do not have voltage during normal power supply between safety line and the zero line or atomic voltage is arranged, the capacitor that disconnected zero protection connects also can be selected resistance.
Described disconnected zero protection and ground connection general-purpose self check connector assembly; comprise energy-saving disconnected zero protection and the ground connection general-purpose self check connector assembly of neon bulb capacitor step-down; it is characterized in that the similar voltage test pencil neon tube of neon bulb; it is the induced electricity of microampere order; particular circuit configurations is that safety line E3 connects disconnected zero protection selector switch K3 simultaneously among the single-phase three-terminal polarized plus plug CHT3; test button SB5; neon bulb FN1 and neon bulb FN2; the neon bulb FN1 other end connects capacitor C7; the disconnected zero protection selector switch K3 other end connects capacitor C8; the capacitor C7 other end is connected zero line N3 together with the capacitor C8 other end; the neon bulb FN2 other end connects capacitor C9; the test button SB5 other end connects capacitor C10; the capacitor C9 other end is connected live wire L3 together with the capacitor C10 other end; zero line N3 connects test button SB6 and neon bulb FN3; the neon bulb FN3 other end connects capacitor C11; the test button SB6 other end connects capacitor C12; the capacitor C11 other end is connected live wire L3 together with the capacitor C12 other end; the bright attitude electric current of neon bulb has only tens microamperes; be similar to induced electricity, power consumption also is similar to zero.
Described disconnected zero protection and ground connection general-purpose self check connector assembly; comprise disconnected zero protection and single-phase three utmost point disjunctor connector assemblies of ground connection general-purpose self check; it is characterized in that single-phase three utmost point disjunctor connector assemblies are that single-phase three-terminal polarized plus plug and single-phase three pole sockets are connected as a single entity; the back of single-phase three-terminal polarized plus plug is single-phase three pole sockets; its inside is equipped with energy-saving disconnected zero protection of disconnected zero protection of resistance voltage-dropping type and ground connection general-purpose self check connector assembly circuit or capacitor step-down and ground connection general-purpose self check connector assembly circuit or energy-saving disconnected zero protection and the ground connection general-purpose self check connector assembly circuit of neon bulb capacitor step-down; constitute disconnected zero protection and single-phase three utmost point disjunctor connector assemblies of ground connection general-purpose self check; the circuit structure of disconnected zero protection be among the single-phase three-terminal polarized plus plug seat CH between zero line N and the safety line E one disconnected zero of cross-over connection protect selector switch K; current-limiting resistance of disconnected zero protection selector switch K series connection; disconnected zero protection selector switch K opens disconnected zero protection when connecting; the general-purpose self checking structure is that self check indicator light SD and test button SB are installed respectively between safety line E and the live wire L and between safety ground E and the zero line N and between live wire L and the zero line N; self check 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 whether the position is correct separately with secretly judging safety line E1 and zero line N1 and live wire L1 according to indicator light SD; further confirm by test button SB again; insert user's single-phase three pole sockets as single-phase three-terminal polarized plus plug seat CH after; if the correct position of bright explanation live wire L1 of indicator light SD3 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.
Described disconnected zero protection and ground connection general-purpose self check connector assembly; comprise disconnected zero protection and the slotting Xiao's plate of ground connection general-purpose self check; it is characterized in that in the single-phase three-terminal polarized plus plug of single-phase three extremely slotting Xiao's plates or at first single-phase three pole sockets, disconnected zero protection selector switch K and indicator light SD and test button SB being installed; its inside is equipped with energy-saving disconnected zero protection of disconnected zero protection of resistance voltage-dropping type and ground connection general-purpose self check connector assembly circuit or capacitor step-down and ground connection general-purpose self check connector assembly circuit or energy-saving disconnected zero protection and the ground connection general-purpose self check connector assembly circuit of neon bulb capacitor step-down; constitute disconnected zero protection and the self check of ground connection general-purpose and insert Xiao's plate; be equipped with on it and insert Xiao's plate master switch K0; insert user's single-phase three pole sockets as single-phase three-terminal polarized plus plug CHT after; if the correct position of bright explanation live wire L1 of indicator light SD3 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 protection of the present invention and ground connection general-purpose self check connector assembly have 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, the three-phase firewire load will cause part family voltage to be elevated to above 250V suddenly when 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 take place in similar accident; Have correct connection to safety ground, 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 circuit of the present invention is simple, cost is low, easy to operate, very with practical value.
Description of drawings
The disconnected zero protector circuit theory schematic diagram of Fig. 1
The disconnected zero protector circuit theory diagrams of Fig. 2 relay control type
Disconnected zero protection and general-purpose self check connector assembly circuit one schematic diagram of Fig. 3 resistance voltage-dropping type
Disconnected zero protection and general-purpose self check connector assembly circuit two schematic diagrams of Fig. 4 resistance voltage-dropping type
Energy-saving disconnected zero protection and the general-purpose self check connector assembly circuit theory diagrams of Fig. 5 capacitor step-down
Energy-saving disconnected zero protection and the general-purpose self check connector assembly circuit theory diagrams of Fig. 6 neon bulb capacitor step-down
Disconnected zero protection and single-phase three utmost point disjunctor connector assembly profile schematic diagrames of ground connection general-purpose self check of Fig. 7
Xiao's plate one profile floor map is inserted in disconnected zero protection of Fig. 8 and the self check of ground connection general-purpose
Xiao's plate two profile floor map are inserted in disconnected zero protection of Fig. 9 and the self check of ground connection general-purpose
Disconnected zero protection and the ground connection general-purpose self check plug profile floor map of Figure 10
L live wire, L0 live wire, N zero line, N0 zero line, E0 safety line, single-phase three pole sockets of CHZ0, RCD0 earth leakage protective device, BL0 zero-sequence transformer, Q0 amplifier, J0 relay among Fig. 1.
L live wire, L01 live wire, N zero line, N01 zero line, E01 safety line, single-phase three pole sockets of CHZ01, SB01 button, J01 AC relay, KM0 A.C. contactor, R01 current-limiting resistance, R02-R03 resistance, LED1 light-emitting diode, D01-D02 diode, DW01 voltage stabilizing didoe among Fig. 2.
L1 live wire, N1 zero line, E1 safety line, the single-phase three-terminal polarized plus plug of CHT1, the disconnected zero protection selector switch of K1, SB1-SB2 test button, SD1-SD3 indicator light, R1-R6 resistance among Fig. 3.
L1 live wire, N1 zero line, E1 safety line, the single-phase three-terminal polarized plus plug of CHT1, the disconnected zero protection selector switch of K1, SB1-SB2 test button, SD1-SD3 indicator light, R1-R6 resistance among Fig. 4.
L2 live wire, N2 zero line, E2 safety line, the single-phase three-terminal polarized plus plug of CHT2, the disconnected zero protection selector switch of K2, SB3-SB4 test button, LED1-LED3 light-emitting diode, D1-D2 diode, C1-C6 capacitor among Fig. 5.
L3 live wire, N3 zero line, E3 safety line, the single-phase three-terminal polarized plus plug of CHT3, the disconnected zero protection selector switch of K3, SB5-SB6 test button, TN1-FN3 neon bulb, C7-C12 capacitor among Fig. 6.
L live wire, N zero line, E safety line, the single-phase three-terminal polarized plus plug of CH, the disconnected zero protection selector switch of K, SB test button, SD indicator light among Fig. 7.
L live wire, N zero line, E safety line, the single-phase three-terminal polarized plus plug of CHT, 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. 8.
L live wire, N zero line, E safety line, single-phase three pole sockets of CHZ0, 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. 9.
L live wire, N zero line, E safety line, the single-phase three-terminal polarized plus plug of CH, the disconnected zero protection selector switch of K, SB test button, SD indicator light among Figure 10.
Embodiment
Fig. 1 is disconnected zero protector circuit theory schematic diagram; disconnected zero protector is that disconnected zero protector is installed in user's distribution box or in the subscriber's drop switch enclosure or on the single-phase three-terminal polarized plus plug of power consumption equipment or in the electrical appliance equipment; disconnected zero protector is to constitute with user's power supply earth leakage protective device or power consumption equipment earth leakage protective device or cooperate earth leakage protective device to constitute; circuit structure is resistance R 0 of cross-over connection on the zero line N0 of user's earth leakage protective device RCD0 output and ground wire E0; one end of resistance R 0 connects zero line N0; the other end of resistance R 0 connects ground wire E0; or resistance R 0 is installed in the single-phase three pole socket CHZ0 is connected between zero line N0 and the safety line E0; or resistance R 0 is installed in is connected between zero line N0 and the safety line E0 in the single-phase three-terminal polarized plus plug CHT0; single-phase three pole socket CHT0 insert single-phase three pole socket CHZ0; when the externally fed circuit zero line disconnection occurs or rides on the live wire; because three phase supply power source loads difference causes the three-phase voltage disequilibrium; voltage difference increases suddenly between user's zero line N0 and the safety line E0; be connected electric current on the resistance R 0 between zero line N0 and the safety line E0 when rising to a certain numerical value; user's earth leakage protective device RCD0 can trip immediately; effectively protection user's power consumption equipment exempts from damage; voltage during normal power supply between zero line N0 and the safety line E0 is very faint; when uneven as the thin threephase load of the long zero line of supply line; voltage between zero line N0 and the safety line E0 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 N0 and the safety line E0 meets or exceeds 10 volts; must surpass 30 milliamperes by the electric current on the resistance R 0, user's earth leakage protective device RCD0 can be tripped immediately.
Fig. 2 is the disconnected zero protector circuit theory diagrams of relay control type; disconnected zero protector of relay control type is with AC relay or A.C. contactor control power supply; the action power dump when voltage between another AC relay or overcurrent relay control zero line and the safety line or electric current surpass a certain numerical value; particular circuit configurations is that the live wire L of power supply is connected contactor KM0 normally opened contact respectively with zero line N; the other end live wire L01 of contactor KM0 normally opened contact is connected single-phase three pole sockets or electrical appliance with zero line N01; A.C. contactor KM0 coil one end connects zero line N; the other end of A.C. contactor KM0 coil connects AC relay J01 normally-closed contact; the other end of AC relay J01 normally-closed contact connects live wire L01 and button SB01 normally opened contact; the button SB01 normally opened contact other end connects live wire L; be connected an AC relay J01 between zero line N01 and the safety line E01; be exactly that AC relay J01 coil one end connects zero line N01; the AC relay J01 coil other end connects current-limiting resistance R01; the other end of current-limiting resistance R01 connects safety line E01; if control A.C. contactor KM0 cut off the electricity supply when voltage difference was increased to AC relay J01 action between zero line N01 and the safety line E0; the electrical appliance of single-phase three pole sockets or other power consumption equipment have all obtained protection; overvoltage indicator light circuit structure is that resistance R 03 1 ends connect live wire L; resistance R 03 other end connects resistance R 02; anodal and LED 1 negative pole of diode D01; LED 1 cathode connecting diode D02 negative pole; the anodal voltage stabilizing didoe DW01 positive pole that connects of diode D02; the negative pole of the other end of resistance R 02 and diode D01 and voltage stabilizing didoe DW01 negative pole are connected zero line N01 together; when the externally fed circuit zero line disconnection occurred or rides on the live wire, voltage was elevated to bright above overvoltage indicator light LED 1 behind the 250V suddenly.
Fig. 3; Fig. 4 is disconnected zero protection and the general-purpose self check connector assembly circuit theory diagrams of resistance voltage-dropping type; disconnected zero protection of resistance voltage-dropping type and ground connection general-purpose self check connector assembly are at slotting Xiao's plate of single-phase three utmost point disjunctor connector assemblies or single-phase three-terminal polarized plus plug or single-phase three pole sockets or a plurality of single-phase three utmost point jacks disconnected zero protection selector switch and safe self check indicator light and test button to be installed; the circuit structure of disconnected zero protection is that zero line N1 connects resistance R 1 among the single-phase three-terminal polarized plus plug CHT1; 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; single-phase three-terminal polarized plus plug CHT1 inserts single-phase three pole sockets of user; when the externally fed circuit zero line disconnection occurs or rides on the live wire; because the different three-phase voltage disequilibriums of three phase supply power source loads; voltage may increase between user's zero line N1 and the safety line E1; when the electric current that is connected across resistance R 1 between zero line N1 and the safety line E1 rises 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 the live wire L1 and between safety ground E1 and the zero line N1 and between live wire L1 and the zero line N1 self check indicator light and test button are installed respectively; bright whether the position is correct separately with secretly judging safety line E1 and zero line N1 and live wire L1 according to indicator light; further confirm by test button again; particular circuit configurations is that safety line E1 connects disconnected zero protection selector switch K1 simultaneously among the single-phase three-terminal polarized plus plug CHT1; test button SB1; indicator light SD1 and indicator light SD2; indicator light SD1 connects resistance R 2; the disconnected zero protection selector switch K1 other end connects resistance R 1; resistance R 1 other end is connected zero line N1 together with resistance R 2 other ends; the indicator light SD2 other end connects resistance R 3; the test button SB1 other end connects resistance R 4; 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; the indicator light SD3 other end connects resistance R 5; the test button SB2 other end connects resistance R 6; 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 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; when single-phase three-terminal polarized plus 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; it is reactionless to depress test button SB2; the tripping operation of user's earth leakage protective illustrates that user's single-phase three pole sockets are safe and reliable after depressing test button SB1; otherwise having Miswire to wait to fix a breakdown uses again; the resistance of resistance R 1 is about 300-500 Ω, and the resistance of resistance R 4 and resistance R 6 is about 6.8K Ω.
Fig. 5 is energy-saving disconnected zero protection and the general-purpose self check connector assembly circuit theory diagrams of capacitor step-down; energy-saving disconnected zero protection of capacitor step-down and ground connection general-purpose self check connector assembly are that capacitance decompression can economize on electricity; particular circuit configurations is the positive pole that safety line E2 connects diode D1 simultaneously among the single-phase three-terminal polarized plus plug CHT2; the positive pole of diode D2; LED 1 negative pole; LED 2 negative poles; disconnected zero protection selector switch K2 and test button SB3; diode D1 negative pole connects LED 1 anodal and capacitor C1; the disconnected zero protection selector switch K2 other end connects capacitor C2; the capacitor C1 other end is connected zero line N2 together with the capacitor C2 other end; diode D2 negative pole connects LED 2 anodal and capacitor C3; the test button SB3 other end connects capacitor C4; the capacitor C3 other end is connected live wire L2 together with the capacitor C4 other end; zero line N2 connects the positive pole of diode D3; LED 3 negative poles and test button SB4; diode D3 negative pole connects LED 3 anodal and capacitor C5; the test button SB4 other end connects capacitor C6; the capacitor C5 other end is connected live wire L2 together with the capacitor C6 other end; the selection of condenser capacity current related with by light-emitting diode and diode; 2 to 3 milliamperes in the electric current of the bright attitude of light-emitting diode; use capacitor step-down can economize on electricity more than 90% than resistance step-down; though the electric current by test button need be greater than 30 milliamperes; because conduction time just in a flash; consider the still optional resistance of using of cost; do not have voltage during normal power supply between safety line and the zero line or atomic voltage is arranged, the capacitor that disconnected zero protection connects also can be selected resistance.
Fig. 6 is energy-saving disconnected zero protection and the general-purpose self check connector assembly circuit theory diagrams of neon bulb capacitor step-down; the similar voltage test pencil neon tube of neon bulb in energy-saving disconnected zero protection of neon bulb capacitor step-down and the ground connection general-purpose self check connector assembly; it is the induced electricity of microampere order; particular circuit configurations is that safety line E3 connects disconnected zero protection selector switch K3 simultaneously among the single-phase three-terminal polarized plus plug CHT3; test button SB5; neon bulb FN1 and neon bulb FN2; the neon bulb FN1 other end connects capacitor C7; the disconnected zero protection selector switch K3 other end connects capacitor C8; the capacitor C7 other end is connected zero line N3 together with the capacitor C8 other end; the neon bulb FN2 other end connects capacitor C9; the test button SB5 other end connects capacitor C10; the capacitor C9 other end is connected live wire L3 together with the capacitor C10 other end; zero line N3 connects test button SB6 and neon bulb FN3; the neon bulb FN3 other end connects capacitor C11; the test button SB6 other end connects capacitor C12; the capacitor C11 other end is connected live wire L3 together with the capacitor C12 other end; the bright attitude electric current of neon bulb has only tens microamperes; be similar to induced electricity, power consumption also is similar to zero.
Fig. 7 is disconnected zero protection and single-phase three utmost point disjunctor connector assembly profile schematic diagrames of ground connection general-purpose self check; single-phase three utmost point disjunctor connector assemblies in disconnected zero protection and single-phase three utmost point disjunctor connector assemblies of ground connection general-purpose self check are that single-phase three-terminal polarized plus plug and single-phase three pole sockets are connected as a single entity; the back of single-phase three-terminal polarized plus plug is single-phase three pole sockets; its inside is equipped with energy-saving disconnected zero protection of disconnected zero protection of resistance voltage-dropping type and ground connection general-purpose self check connector assembly circuit or capacitor step-down and ground connection general-purpose self check connector assembly circuit or energy-saving disconnected zero protection and the ground connection general-purpose self check connector assembly circuit of neon bulb capacitor step-down; constitute disconnected zero protection and single-phase three utmost point disjunctor connector assemblies of ground connection general-purpose self check; the circuit structure of disconnected zero protection be among the single-phase three-terminal polarized plus plug seat CH between zero line N and the safety line E one disconnected zero of cross-over connection protect selector switch K; current-limiting resistance of disconnected zero protection selector switch K series connection; disconnected zero protection selector switch K opens disconnected zero protection when connecting; the general-purpose self checking structure is that self check indicator light SD and test button SB are installed respectively between safety line E and the live wire L and between safety ground E and the zero line N and between live wire L and the zero line N; self check 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 whether the position is correct separately with secretly judging safety line E1 and zero line N1 and live wire L1 according to indicator light SD; further confirm by test button SB again; insert user's single-phase three pole sockets as single-phase three-terminal polarized plus plug seat CH after; if the correct position of bright explanation live wire L1 of indicator light SD3 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. 8; Fig. 9 is that Xiao's plate profile floor map is inserted in disconnected zero protection and the self check of ground connection general-purpose; it is in the single-phase three-terminal polarized plus plug of single-phase three extremely slotting Xiao's plates or at first single-phase three pole sockets disconnected zero protection selector switch K and indicator light SD and test button SB to be installed that Xiao's plate is inserted in disconnected zero protection and the self check of ground connection general-purpose; its inside is equipped with energy-saving disconnected zero protection of disconnected zero protection of resistance voltage-dropping type and ground connection general-purpose self check connector assembly circuit or capacitor step-down and ground connection general-purpose self check connector assembly circuit or energy-saving disconnected zero protection and the ground connection general-purpose self check connector assembly circuit of neon bulb capacitor step-down; constitute disconnected zero protection and the self check of ground connection general-purpose and insert Xiao's plate; be equipped with on it and insert Xiao's plate master switch K0; insert user's single-phase three pole sockets as single-phase three-terminal polarized plus plug CH after; if the correct position of bright explanation live wire L1 of indicator light SD3 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.
Figure 10 is disconnected zero protection and ground connection general-purpose self check plug profile floor map, and its inside is equipped with energy-saving disconnected zero protection of disconnected zero protection of resistance voltage-dropping type and ground connection general-purpose self check connector assembly circuit or capacitor step-down and ground connection general-purpose self check connector assembly circuit or energy-saving disconnected zero protection and the ground connection general-purpose self check connector assembly circuit of neon bulb capacitor step-down.
Claims (7)
1. disconnected zero protect and ground connection general-purpose self check connector assembly; comprise disconnected zero protector; it is characterized in that in user's distribution box or disconnected zero protector is installed in the subscriber's drop switch enclosure or on the single-phase three-terminal polarized plus plug of power consumption equipment or in the electrical appliance equipment; disconnected zero protector is to constitute with user's power supply earth leakage protective device or power consumption equipment earth leakage protective device or cooperate earth leakage protective device to constitute; circuit structure is resistance R 0 of cross-over connection on the zero line N0 of user's earth leakage protective device RCD0 output and safety line E0; one end of resistance R 0 connects zero line N0; the other end of resistance R 0 connects ground wire E0; or resistance R 0 is installed in the single-phase three pole socket CHZ0 is connected between zero line N0 and the safety line E0; or resistance R 0 is installed in is connected between zero line N0 and the safety line E0 in the single-phase three-terminal polarized plus plug CHT0; single-phase three pole socket CHT0 insert single-phase three pole socket CHZ0; when the externally fed circuit zero line disconnection occurs or rides on the live wire; because three phase supply power source loads difference causes the three-phase voltage disequilibrium; voltage difference increases suddenly between user's zero line N0 and the safety line E0; be connected electric current on the resistance R 0 between zero line N0 and the safety line E0 when rising to a certain numerical value; user's earth leakage protective device RCD0 can trip immediately; effectively protection user's power consumption equipment exempts from damage; voltage during normal power supply between zero line N0 and the safety line E0 is very faint; when uneven as the thin threephase load of the long zero line of supply line; voltage between zero line N0 and the safety line E0 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 N0 and the safety line E0 meets or exceeds 10 volts; must surpass 30 milliamperes by the electric current on the resistance R 0, user's earth leakage protective device RCD0 can be tripped immediately.
2. described disconnected zero protect and ground connection general-purpose self check connector assembly; comprise disconnected zero protector of relay control type; it is characterized in that with AC relay or A.C. contactor control power supply; the action power dump when voltage between another AC relay or overcurrent relay control zero line and the safety line or electric current surpass a certain numerical value; particular circuit configurations is that the live wire L of power supply is connected contactor KM0 normally opened contact respectively with zero line N; the other end live wire L01 of contactor KM0 normally opened contact is connected single-phase three pole sockets or electrical appliance with zero line N01; A.C. contactor KM0 coil one end connects zero line N; the other end of A.C. contactor KM0 coil connects AC relay J01 normally-closed contact; the other end of AC relay J01 normally-closed contact connects live wire L01 and button SB01 normally opened contact; the button SB01 normally opened contact other end connects live wire L; be connected an AC relay J01 between zero line N01 and the safety line E01; be exactly that AC relay J01 coil one end connects zero line N01; the AC relay J01 coil other end connects current-limiting resistance R01; the other end of current-limiting resistance R01 connects safety line E01; if control A.C. contactor KM0 cut off the electricity supply when voltage difference was increased to AC relay J01 action between zero line N01 and the safety line E0; the electrical appliance of single-phase three pole sockets or other power consumption equipment have all obtained protection; overvoltage indicator light circuit structure is that resistance R 03 1 ends connect live wire L; resistance R 03 other end connects resistance R 02; anodal and LED 1 negative pole of diode D01; LED 1 cathode connecting diode D02 negative pole; the anodal voltage stabilizing didoe DW01 positive pole that connects of diode D02; the negative pole of the other end of resistance R 02 and diode D01 and voltage stabilizing didoe DW01 negative pole are connected zero line N01 together; when the externally fed circuit zero line disconnection occurred or rides on the live wire, voltage was elevated to bright above overvoltage indicator light LED 1 behind the 250V suddenly.
3. described disconnected zero protect and ground connection general-purpose self check connector assembly; comprise disconnected zero protection and the ground connection general-purpose self check connector assembly of resistance voltage-dropping type; it is characterized in that at slotting Xiao's plate of single-phase three utmost point disjunctor connector assemblies or single-phase three-terminal polarized plus plug or single-phase three pole sockets or a plurality of single-phase three utmost point jacks disconnected zero protection selector switch and safe self check indicator light and test button being installed; the circuit structure of disconnected zero protection is that zero line N1 connects resistance R 1 among the single-phase three-terminal polarized plus plug CHT1; 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; single-phase three-terminal polarized plus plug CHT1 inserts single-phase three pole sockets of user; when the externally fed circuit zero line disconnection occurs or rides on the live wire; because the different three-phase voltage disequilibriums of three phase supply power source loads; voltage may increase between user's zero line N1 and the safety line E1; when the electric current that is connected across resistance R 1 between zero line N1 and the safety line E1 rises 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 the live wire L1 and between safety ground E1 and the zero line N1 and between live wire L1 and the zero line N1 self check indicator light and test button are installed respectively; bright whether the position is correct separately with secretly judging safety line E1 and zero line N1 and live wire L1 according to indicator light; further confirm by test button again; particular circuit configurations is that safety line E1 connects disconnected zero protection selector switch K1 simultaneously among the single-phase three-terminal polarized plus plug CHT1; test button SB1; indicator light SD1 and indicator light SD2; indicator light SD1 connects resistance R 2; the disconnected zero protection selector switch K1 other end connects resistance R 1; resistance R 1 other end is connected zero line N1 together with resistance R 2 other ends; the indicator light SD2 other end connects resistance R 3; the test button SB1 other end connects resistance R 4; 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; the indicator light SD3 other end connects resistance R 5; the test button SB2 other end connects resistance R 6; 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 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; when single-phase three-terminal polarized plus 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; it is reactionless to depress test button SB2; the tripping operation of user's earth leakage protective illustrates that user's single-phase three pole sockets are safe and reliable after depressing test button SB1; otherwise having Miswire to wait to fix a breakdown uses again; the resistance of resistance R 1 is about 300-500 Ω, and the resistance of resistance R 4 and resistance R 6 is about 6.8K Ω.
4. described disconnected zero protect and ground connection general-purpose self check connector assembly; comprise energy-saving disconnected zero protection and the ground connection general-purpose self check connector assembly of capacitor step-down; it is characterized in that capacitance decompression can economize on electricity; particular circuit configurations is the positive pole that safety line E2 connects diode D1 simultaneously among the single-phase three-terminal polarized plus plug CHT2; the positive pole of diode D2; LED 1 negative pole; LED 2 negative poles; disconnected zero protection selector switch K2 and test button SB3; diode D1 negative pole connects LED 1 anodal and capacitor C1; the disconnected zero protection selector switch K2 other end connects capacitor C2; the capacitor C1 other end is connected zero line N2 together with the capacitor C2 other end; diode D2 negative pole connects LED 2 anodal and capacitor C3; the test button SB3 other end connects capacitor C4; the capacitor C3 other end is connected live wire L2 together with the capacitor C4 other end; zero line N2 connects the positive pole of diode D3; LED 3 negative poles and test button SB4; diode D3 negative pole connects LED 3 anodal and capacitor C5; the test button SB4 other end connects capacitor C6; the capacitor C5 other end is connected live wire L2 together with the capacitor C6 other end; the selection of condenser capacity current related with by light-emitting diode and diode; 2 to 3 milliamperes in the electric current of the bright attitude of light-emitting diode; use capacitor step-down can economize on electricity more than 90% than resistance step-down; though the electric current by test button need be greater than 30 milliamperes; because conduction time just in a flash; consider the still optional resistance of using of cost; do not have voltage during normal power supply between safety line and the zero line or atomic voltage is arranged, the capacitor that disconnected zero protection connects also can be selected resistance.
5. described disconnected zero protect and ground connection general-purpose self check connector assembly; comprise energy-saving disconnected zero protection and the ground connection general-purpose self check connector assembly of neon bulb capacitor step-down; it is characterized in that the similar voltage test pencil neon tube of neon bulb; it is the induced electricity of microampere order; particular circuit configurations is that safety line E3 connects disconnected zero protection selector switch K3 simultaneously among the single-phase three-terminal polarized plus plug CHT3; test button SB5; neon bulb FN1 and neon bulb FN2; the neon bulb FN1 other end connects capacitor C7; the disconnected zero protection selector switch K3 other end connects capacitor C8; the capacitor C7 other end is connected zero line N3 together with the capacitor C8 other end; the neon bulb FN2 other end connects capacitor C9; the test button SB5 other end connects capacitor C10; the capacitor C9 other end is connected live wire L3 together with the capacitor C10 other end; zero line N3 connects test button SB6 and neon bulb FN3; the neon bulb FN3 other end connects capacitor C11; the test button SB6 other end connects capacitor C12; the capacitor C11 other end is connected live wire L3 together with the capacitor C12 other end; the bright attitude electric current of neon bulb has only tens microamperes; be similar to induced electricity, power consumption also is similar to zero.
6. described disconnected zero protect and ground connection general-purpose self check connector assembly; comprise disconnected zero protection and single-phase three utmost point disjunctor connector assemblies of ground connection general-purpose self check; it is characterized in that single-phase three utmost point disjunctor connector assemblies are that single-phase three-terminal polarized plus plug and single-phase three pole sockets are connected as a single entity; the back of single-phase three-terminal polarized plus plug is single-phase three pole sockets; its inside is equipped with energy-saving disconnected zero protection of disconnected zero protection of resistance voltage-dropping type and ground connection general-purpose self check connector assembly circuit or capacitor step-down and ground connection general-purpose self check connector assembly circuit or energy-saving disconnected zero protection and the ground connection general-purpose self check connector assembly circuit of neon bulb capacitor step-down; constitute disconnected zero protection and single-phase three utmost point disjunctor connector assemblies of ground connection general-purpose self check; the circuit structure of disconnected zero protection be among the single-phase three-terminal polarized plus plug seat CH between zero line N and the safety line E one disconnected zero of cross-over connection protect selector switch K; current-limiting resistance of disconnected zero protection selector switch K series connection; disconnected zero protection selector switch K opens disconnected zero protection when connecting; the general-purpose self checking structure is that self check indicator light SD and test button SB are installed respectively between safety line E and the live wire L and between safety ground E and the zero line N and between live wire L and the zero line N; self check 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 whether the position is correct separately with secretly judging safety line E1 and zero line N1 and live wire L1 according to indicator light SD; further confirm by test button SB again; insert user's single-phase three pole sockets as single-phase three-terminal polarized plus plug seat CH after; if the correct position of bright explanation live wire L1 of indicator light SD3 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.
7. described disconnected zero protect and ground connection general-purpose self check connector assembly; comprise disconnected zero protection and the slotting Xiao's plate of ground connection general-purpose self check; it is characterized in that in the single-phase three-terminal polarized plus plug of single-phase three extremely slotting Xiao's plates or at first single-phase three pole sockets, disconnected zero protection selector switch K and indicator light SD and test button SB being installed; its inside is equipped with energy-saving disconnected zero protection of disconnected zero protection of resistance voltage-dropping type and ground connection general-purpose self check connector assembly circuit or capacitor step-down and ground connection general-purpose self check connector assembly circuit or energy-saving disconnected zero protection and the ground connection general-purpose self check connector assembly circuit of neon bulb capacitor step-down; constitute disconnected zero protection and the self check of ground connection general-purpose and insert Xiao's plate; be equipped with on it and insert Xiao's plate master switch K0; insert user's single-phase three pole sockets as single-phase three-terminal polarized plus plug CHT after; if the correct position of bright explanation live wire L1 of indicator light SD3 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.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410350980.8A CN104103973B (en) | 2013-05-16 | 2013-05-16 | Zero protection and grounding general self-inspection single-phase three-pole integrated socket |
| CN201310202617.7A CN103296541B (en) | 2013-05-16 | 2013-05-16 | Protection off zero and ground connection general-purpose self-checking plug seat |
| CN201410350950.7A CN104104054B (en) | 2013-05-16 | 2013-05-16 | Relay control type protector off zero |
| CN201410350947.5A CN104124580B (en) | 2013-05-16 | 2013-05-16 | Single-phase three utmost point power distributors of protection off zero and the self-inspection of ground connection general-purpose |
| CN201410350979.5A CN104158030B (en) | 2013-05-16 | 2013-05-16 | The energy-saving protection off zero of capacitor step-down and ground connection general-purpose self-checking plug seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310202617.7A CN103296541B (en) | 2013-05-16 | 2013-05-16 | Protection off zero and ground connection general-purpose self-checking plug seat |
Related Child Applications (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410350950.7A Division CN104104054B (en) | 2013-05-16 | 2013-05-16 | Relay control type protector off zero |
| CN201410350988.4A Division CN104143810A (en) | 2013-05-16 | 2013-05-16 | Null wire disconnection protector |
| CN201410350980.8A Division CN104103973B (en) | 2013-05-16 | 2013-05-16 | Zero protection and grounding general self-inspection single-phase three-pole integrated socket |
| CN201410350979.5A Division CN104158030B (en) | 2013-05-16 | 2013-05-16 | The energy-saving protection off zero of capacitor step-down and ground connection general-purpose self-checking plug seat |
| CN201410350947.5A Division CN104124580B (en) | 2013-05-16 | 2013-05-16 | Single-phase three utmost point power distributors of protection off zero and the self-inspection of ground connection general-purpose |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103296541A true CN103296541A (en) | 2013-09-11 |
| CN103296541B CN103296541B (en) | 2015-10-07 |
Family
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310202617.7A Expired - Fee Related CN103296541B (en) | 2013-05-16 | 2013-05-16 | Protection off zero and ground connection general-purpose self-checking plug seat |
| CN201410350947.5A Expired - Fee Related CN104124580B (en) | 2013-05-16 | 2013-05-16 | Single-phase three utmost point power distributors of protection off zero and the self-inspection of ground connection general-purpose |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410350947.5A Expired - Fee Related CN104124580B (en) | 2013-05-16 | 2013-05-16 | Single-phase three utmost point power distributors of protection off zero and the self-inspection of ground connection general-purpose |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN103296541B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105931877A (en) * | 2016-05-03 | 2016-09-07 | 盐城师范学院 | Bimetallic strip cutoff and carrier wave remote sensing type socket panel |
| CN105977725A (en) * | 2016-05-24 | 2016-09-28 | 郭森明 | Safety socket |
| CN106482354A (en) * | 2016-11-28 | 2017-03-08 | 广东万家乐燃气具有限公司 | A kind of electric heater water outlet power-off and earth leakage protective device |
| CN107959148A (en) * | 2016-10-14 | 2018-04-24 | 中国电力科学研究院 | A kind of remote-controlled direct current jack with current-limiting function |
| CN108919039A (en) * | 2018-05-16 | 2018-11-30 | 广东工业大学 | A kind of three-pin plug, Three-hole socket detection device, method, system and equipment |
| CN114156702A (en) * | 2021-11-26 | 2022-03-08 | 国网辽宁省电力有限公司大连供电公司 | Zero line disconnection protection type power strip |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106486964A (en) * | 2016-12-19 | 2017-03-08 | 贺州学院 | A kind of Intelligent socket |
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| JP2000171505A (en) * | 1998-12-03 | 2000-06-23 | Chugoku Electric Power Co Inc:The | Method and device for testing relay for protecting distribution line from ground fault |
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| CN2727946Y (en) * | 2004-08-20 | 2005-09-21 | 李文星 | An electric leakage switch |
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| CN203760767U (en) * | 2013-05-16 | 2014-08-06 | 介国安 | Grounding all-purpose self-checking plug head seat having null-line disconnection protection function |
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| CN2031971U (en) * | 1988-01-22 | 1989-02-01 | 吴长勤 | Safety automatic controller for electricity-consuming appliances |
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| CN201985508U (en) * | 2011-04-22 | 2011-09-21 | 黄灿育 | Zero line break protector and connecting structure thereof |
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- 2013-05-16 CN CN201310202617.7A patent/CN103296541B/en not_active Expired - Fee Related
- 2013-05-16 CN CN201410350947.5A patent/CN104124580B/en not_active Expired - Fee Related
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| JP2000171505A (en) * | 1998-12-03 | 2000-06-23 | Chugoku Electric Power Co Inc:The | Method and device for testing relay for protecting distribution line from ground fault |
| CN2409659Y (en) * | 1999-10-28 | 2000-12-06 | 汤健 | Electrical safety experiment case for single-phase three-hole planar electrode socket and electric leakage protector |
| CN2727946Y (en) * | 2004-08-20 | 2005-09-21 | 李文星 | An electric leakage switch |
| CN202563045U (en) * | 2012-05-28 | 2012-11-28 | 李宗跃 | Right-or-wrong judgment display for wiring of indoor single-phase three-hole socket |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105931877A (en) * | 2016-05-03 | 2016-09-07 | 盐城师范学院 | Bimetallic strip cutoff and carrier wave remote sensing type socket panel |
| CN105977725A (en) * | 2016-05-24 | 2016-09-28 | 郭森明 | Safety socket |
| CN107959148A (en) * | 2016-10-14 | 2018-04-24 | 中国电力科学研究院 | A kind of remote-controlled direct current jack with current-limiting function |
| CN106482354A (en) * | 2016-11-28 | 2017-03-08 | 广东万家乐燃气具有限公司 | A kind of electric heater water outlet power-off and earth leakage protective device |
| CN108919039A (en) * | 2018-05-16 | 2018-11-30 | 广东工业大学 | A kind of three-pin plug, Three-hole socket detection device, method, system and equipment |
| CN114156702A (en) * | 2021-11-26 | 2022-03-08 | 国网辽宁省电力有限公司大连供电公司 | Zero line disconnection protection type power strip |
| CN114156702B (en) * | 2021-11-26 | 2023-08-25 | 国网辽宁省电力有限公司大连供电公司 | Zero line broken wire protection type power strip |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104124580B (en) | 2016-05-18 |
| CN103296541B (en) | 2015-10-07 |
| CN104124580A (en) | 2014-10-29 |
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Address after: 325200 Ruian City, south of the Yangtze River in the city of riverside Street standard factory building light industrial zone, the first floor of the ninth floor of the first floor of the Thai Electrical Appliance Co., Ltd., four Applicant after: Jie Guoan Address before: 325207 Zhejiang province Ruian City Feiyun Town Yun Zhou Industrial Zone Thai Electric Appliance Co. Ltd Applicant before: Jie Guoan |
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Effective date of registration: 20171031 Address after: Hedong District of Tianjin City Road 300161 Linke Yi Xuan 5-4-501 Patentee after: Li Yong Address before: 325200 Ruian City, south of the Yangtze River in the city of riverside Street standard factory building light industrial zone, the first floor of the ninth floor of the first floor of the Thai Electrical Appliance Co., Ltd., four Patentee before: Jie Guoan |
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