US20020153989A1 - Circuit for indicating abnormality of three-mode surge absorber of public electric power and a multiple-end fuse - Google Patents
Circuit for indicating abnormality of three-mode surge absorber of public electric power and a multiple-end fuse Download PDFInfo
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- US20020153989A1 US20020153989A1 US10/173,598 US17359802A US2002153989A1 US 20020153989 A1 US20020153989 A1 US 20020153989A1 US 17359802 A US17359802 A US 17359802A US 2002153989 A1 US2002153989 A1 US 2002153989A1
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- fuse
- surge
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- absorbing device
- circuit
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
- H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
- H02H9/042—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage comprising means to limit the absorbed power or indicate damaged over-voltage protection device
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/04—Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned
- H02H3/048—Checking overvoltage diverters
Definitions
- the present invention relates to a power abnormality circuit, and especially to circuit for indicating abnormality of a three-mode surge absorber of a public electric power and a multiple-end fuse. Furthermore, the present invention provides a multiple-end fuse which is used to the circuit for indicating abnormality of a three-mode surge absorber of a public electric power.
- the general power receptacle for surge protection use metal oxide varistors or other transient / surge absorbers for suppressing surge wave. These elements will heat as absorbing surge wave, even a large surge wave will induce a short circuit. Therefore, temperature fuses or current fuses are used to prevent abnormality.
- the breakage of fuses is used to determine the abnormality of a surge protection indicator.
- the indicator in order to prevent the leakage current to the ground, in general, the indicator only displays the condition of the input ends of line-neutral mode while the conditions of line-ground mode and neutral-ground mode are not displayed.
- FIG. 1 a circuit for indicating abnormality of a surge absorber is illustrated, which includes two surge absorbing devices 10 and 30 and an abnormal indication circuit 20 .
- the L-N ends in the three-mode in public power supply is connected to the surge absorbing device 10 in series.
- the surge absorbing device 30 is serially connected between the L-G and N-G ends.
- the surge absorbing device 10 has a two-end temperature sensing fuse 101 capable of suffering from a temperature of 139° C. and a metal oxide vairstor 102 . When the metal oxide vairstor 102 has abnormality, it will heat gradually.
- the metal oxide vairstor 102 Since it tightly resists against the two-end temperature sensing fuse 102 , the metal oxide vairstor 102 will heat and finally bum off the two-end temperature sensing fuse 101 so that the surge protection indicator 202 will extinguish due to no current flowing therethrough.
- the surge absorbing device 30 has two metal oxide vairstors 301 and 302 and a two-end temperature sensing fuse 303 capable of suffering from a temperature of 139° C.
- the metal oxide vairstor 301 When the metal oxide vairstor 301 has abnormality, it will heat gradually. Since it tightly resists against the two-end temperature sensing fuse 303 , the metal oxide vairstor 301 will heat and finally burn off the two-end temperature sensing fuse 303 , but the two-end temperature sensing fuse 101 does not break off so that the surge protection indicator 202 will not extinguish. Namely, the fault of the surge absorbing device 30 of the L-G ends can not be detected. Furthermore, When the metal oxide varlstor 302 has abnormality, it will heat gradually.
- the metal oxide varlstor 302 Since it tightly resists against the two-end temperature sensing fuse 303 , the metal oxide varlstor 302 will heat and finally burn-cut the two-end temperature sensing fuse 303 , but the two-end temperature sensing fuse 101 does not burn-cut so that the surge protection indicator 202 will not extinguish. Namely, the fault of the surge absorbing device 30 of the N-G ends can not be detected.
- the primary object of the present invention is to provide a circuit for indicating abnormality of a three-mode surge absorber and a multiple-end fuse.
- Another object of the present invention is to provide a circuit for displaying abnormality of a three-mode surge absorber of a public electric power, in which a current sufficient to cut off a third end flows through a first and a second end of a two-end fuse and at the same time, the third end is cut off so that the third end is isolated from the first and second ends completely.
- the present invention provides a circuit for indicating abnormality of a three-mode surge absorber of a public electric power.
- the circuit is serially connected between the input end and output end of a public electric power supply for indicating the abnormality of a three-mode surge absorbing device of a public power supply so as to achieve the object of indicating an obvious indication to the users.
- the circuit for indicating abnormality of a three-mode surge absorber of a public electric power of the present invention includes a first surge absorbing device coupled to the line input end and the neutral input end for absorbing a surge between the line input end and the neutral input end; a first three-end fuse coupled to the first surge absorbing device and the line input end for preventing abnormality of parts; an abnormal indication circuit coupled to the first three-end fuse for indicating the abnormality of three-mode in public power supply; a second surge absorbing device coupled to the abnormal indication circuit, the neutral input end and the ground input end for absorbing a surge between the neutral input end and the ground input end; and a second three-end fuse coupled to the neutral input end and the second surge absorbing device for preventing the abnormality of parts.
- the present invention further provides a multiple-end fuse, wherein at least one ends is added to a two-end fuse, when a current sufficient burnt the two-end fuse to break out flowing through a first end and a second end of the two-end fuse, a third end or other ends is cut off so that the third end or other ends are completely isolated with the first or the second ends.
- FIG. 1 shows the circuit for indicating abnormality of a surge absorber in the prior art
- FIG. 2 shows the circuit for indicating abnormality of a three-mode surge absorber of a public electric power in the present invention.
- the circuit diagram of the circuit for indicating abnormality of a three-mode surge absorber of a public electric power in the preferred embodiment of the present invention is illustrated.
- the circuit of the present invention includes a first surge absorbing device 40 , a first three-end fuse 50 , an abnormal indication circuit 60 , a second surge absorbing device 70 and a second three-end fuse 80 .
- the first surge absorbing device 40 has a two-end temperature sensing fuse 401 suffering from a temperature of 139° C. and a metal oxide varistor 402 .
- the first three-end fuse 50 and the second three-end fuse 80 has a plurality of ends, in which one or more ends are further added in the two-end fuse.
- the abnormal indication circuit 60 includes a resistor R 2 , a diode 601 and a light emitting diode 602 for indicating the abnormality of the three-mode circuit.
- the surge absorbing device 70 as a two-end temperature sensing fuse 701 capable of suffering from a temperature of 100° C., a two-end temperature sensing fuse 704 capable of suffering from a temperature of 139° C., and two metal oxide varistors 702 , 703 .
- the circuit property for the circuit for indicating abnormality of a threemode surge absorber of a public electric power may be analyzed by the following two modes (1) The transient/surge absorber is heated and then is destroyed gradually, and (2) The transient/surge absorber suffers from a high voltage and then is destroyed instantly. In the following, the properties of these two modes are analyzed.
- the metal oxide varistor 702 has abnormality and then heat gradually, since it resists tightly against the three-end fuses 701 and 704 , and the temperature of the two-end temperature sensing fuse 701 is lower, it will burnt out firstly so that no current flows through the surge protection indicator 602 and then extinguishes, but current still flows to the two-end temperature sensing fuse 704 . Finally, the two-end temperature sensing fuse 704 is burned off and no current flows through the metal oxide varistor 702 . Therefore, the metal oxide varistor 702 emits no heat.
- N-G mode The metal oxide varistor 703 has abnormality and heats gradually. Since it resists against the two-end temperature sensing fuses 701 and 704 and the two-end temperature sensing fuse 701 has a lower temperature, it will burn off at first so that the surge protection indicator 602 has no current and then extinguishes, but current still flows through the twoend temperature sensing fuse 704 . Finally, the two-end temperature sensing fuse 704 is burnt to break out and no current flows through the metal oxide varistor 703 . Therefore, the metal oxide varistor 703 emits no heat.
- a) L-N mode When abnormality occurs, and high voltage retains, the metal oxide varistor 402 will short-circuit instantly. Since a large current flows into the first three-end fuse 50 so that the first three-end fuse 50 heats and then breaks out. Other than the current path of the metal oxide varistor 402 being broken, the path of the surge protection indicator 602 will be broken so that the surge protection indicator 602 extinguishes.
- N-G mode L-G mode: When abnormality occurs, and high voltage retains, the metal oxide varistor 703 short-circuits instantly, since a large current flows through the second three-end fuse 80 , the second three-end fuse 80 heats instantly and then breaks out. Other than the current path of the metal oxide varistor 703 is broken and the path of the surge protection indicator 602 will be broken so that the surge protection indicator 602 extinguishes.
- the circuit for indicating abnormality of a threemode surge absorber of a public electric power of the present invention assure that no leakage occurs as it is destroyed in all modes.
- the metal oxide varistor is taken as an example of the first and second surge absorbing devices of the present invention, however, the surge absorbing device, such as a gas tube, a transient voltage suppressor or sidactor, etc. serves in the present invention.
- the three-end fuses 50 and 80 are not limited to a structure of three ends, it is only for the sake of convenience.
- fuses for example, four end fuses or multiple ends fuses can be used for the purpose of the present invention.
- the type of the three-end fuse is not confined to be a flat, stand or box type.
- the multiple end fuses employed in the trace of a printed circuit board layout can be used in the present invention.
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Abstract
A circuit for indicating abnormality of a three-mode surge absorber of a public electric power is disclosed. The circuit is serially connected between the input end and output end of a public electric power supply for indicating the abnormality of a three-mode surge absorbing device of a public power supply so as to achieve the object of indicating an obvious indication to the users. The circuit includes a first surge absorbing device, a first three-end fuse, an abnormal indication circuit, a second surge absorbing device and a second two-end fuse. Other than indicating the abnormality of the L-N, L-G, N-G surge absorbing devices, the present invention can prevent current leakage as destroys occurs in the diverse modes.
Description
- The present invention relates to a power abnormality circuit, and especially to circuit for indicating abnormality of a three-mode surge absorber of a public electric power and a multiple-end fuse. Furthermore, the present invention provides a multiple-end fuse which is used to the circuit for indicating abnormality of a three-mode surge absorber of a public electric power.
- The general power receptacle for surge protection use metal oxide varistors or other transient / surge absorbers for suppressing surge wave. These elements will heat as absorbing surge wave, even a large surge wave will induce a short circuit. Therefore, temperature fuses or current fuses are used to prevent abnormality.
- In general, the breakage of fuses is used to determine the abnormality of a surge protection indicator. However, in order to prevent the leakage current to the ground, in general, the indicator only displays the condition of the input ends of line-neutral mode while the conditions of line-ground mode and neutral-ground mode are not displayed.
- Referring to FIG. 1, a circuit for indicating abnormality of a surge absorber is illustrated, which includes two
surge absorbing devices abnormal indication circuit 20. The L-N ends in the three-mode in public power supply is connected to thesurge absorbing device 10 in series. Thesurge absorbing device 30 is serially connected between the L-G and N-G ends. Thesurge absorbing device 10 has a two-endtemperature sensing fuse 101 capable of suffering from a temperature of 139° C. and a metal oxide vairstor 102. When the metal oxide vairstor 102 has abnormality, it will heat gradually. Since it tightly resists against the two-end temperature sensing fuse 102, the metal oxide vairstor 102 will heat and finally bum off the two-endtemperature sensing fuse 101 so that thesurge protection indicator 202 will extinguish due to no current flowing therethrough. - The
surge absorbing device 30 has twometal oxide vairstors 301 and 302 and a two-endtemperature sensing fuse 303 capable of suffering from a temperature of 139° C. When the metal oxide vairstor 301 has abnormality, it will heat gradually. Since it tightly resists against the two-end temperature sensingfuse 303, the metal oxide vairstor 301 will heat and finally burn off the two-endtemperature sensing fuse 303, but the two-endtemperature sensing fuse 101 does not break off so that thesurge protection indicator 202 will not extinguish. Namely, the fault of thesurge absorbing device 30 of the L-G ends can not be detected. Furthermore, When themetal oxide varlstor 302 has abnormality, it will heat gradually. Since it tightly resists against the two-endtemperature sensing fuse 303, themetal oxide varlstor 302 will heat and finally burn-cut the two-endtemperature sensing fuse 303, but the two-endtemperature sensing fuse 101 does not burn-cut so that thesurge protection indicator 202 will not extinguish. Namely, the fault of thesurge absorbing device 30 of the N-G ends can not be detected. - Accordingly, the primary object of the present invention is to provide a circuit for indicating abnormality of a three-mode surge absorber and a multiple-end fuse.
- Another object of the present invention is to provide a circuit for displaying abnormality of a three-mode surge absorber of a public electric power, in which a current sufficient to cut off a third end flows through a first and a second end of a two-end fuse and at the same time, the third end is cut off so that the third end is isolated from the first and second ends completely.
- To achieve above objects, the present invention provides a circuit for indicating abnormality of a three-mode surge absorber of a public electric power. The circuit is serially connected between the input end and output end of a public electric power supply for indicating the abnormality of a three-mode surge absorbing device of a public power supply so as to achieve the object of indicating an obvious indication to the users. The circuit for indicating abnormality of a three-mode surge absorber of a public electric power of the present invention includes a first surge absorbing device coupled to the line input end and the neutral input end for absorbing a surge between the line input end and the neutral input end; a first three-end fuse coupled to the first surge absorbing device and the line input end for preventing abnormality of parts; an abnormal indication circuit coupled to the first three-end fuse for indicating the abnormality of three-mode in public power supply; a second surge absorbing device coupled to the abnormal indication circuit, the neutral input end and the ground input end for absorbing a surge between the neutral input end and the ground input end; and a second three-end fuse coupled to the neutral input end and the second surge absorbing device for preventing the abnormality of parts.
- The present invention further provides a multiple-end fuse, wherein at least one ends is added to a two-end fuse, when a current sufficient burnt the two-end fuse to break out flowing through a first end and a second end of the two-end fuse, a third end or other ends is cut off so that the third end or other ends are completely isolated with the first or the second ends.
- The various objects and advantages of the present invention will be more readily understood from the following detailed description when read in conjunction with the appended drawing, wherein:
- FIG. 1 shows the circuit for indicating abnormality of a surge absorber in the prior art; and
- FIG. 2 shows the circuit for indicating abnormality of a three-mode surge absorber of a public electric power in the present invention.
- Referring to FIG. 2, the circuit diagram of the circuit for indicating abnormality of a three-mode surge absorber of a public electric power in the preferred embodiment of the present invention is illustrated. The circuit of the present invention includes a first
surge absorbing device 40, a first three-end fuse 50, anabnormal indication circuit 60, a secondsurge absorbing device 70 and a second three-end fuse 80. The firstsurge absorbing device 40 has a two-endtemperature sensing fuse 401 suffering from a temperature of 139° C. and ametal oxide varistor 402. The first three-end fuse 50 and the second three-end fuse 80 has a plurality of ends, in which one or more ends are further added in the two-end fuse. When a current sufficient to turn off the two-end fuse flows through the first end and second end of two-end fuse, the three-end or these ends are cut so that the third end or these ends are isolated with the first and second ends completely. Theabnormal indication circuit 60 includes a resistor R2, adiode 601 and alight emitting diode 602 for indicating the abnormality of the three-mode circuit. Thesurge absorbing device 70 as a two-endtemperature sensing fuse 701 capable of suffering from a temperature of 100° C., a two-endtemperature sensing fuse 704 capable of suffering from a temperature of 139° C., and twometal oxide varistors - The circuit property for the circuit for indicating abnormality of a threemode surge absorber of a public electric power according to the present invention may be analyzed by the following two modes (1) The transient/surge absorber is heated and then is destroyed gradually, and (2) The transient/surge absorber suffers from a high voltage and then is destroyed instantly. In the following, the properties of these two modes are analyzed.
- (1) The transient/surge absorber is heated and then is destroyed gradually.
- a) L-N mode: the
metal oxide varistor 402 is abnormal, and is heated, since it tightly resists against the two-endtemperature sensing fuse 401. Finally, the temperature of themetal oxide varistor 402 will burn the two-endtemperature sensing fuse 401 to break out. Therefore, thesurge protection indicator 602 has no current and then extinguishes. - b) L-G mode: the
metal oxide varistor 702 has abnormality and then heat gradually, since it resists tightly against the three-end fuses temperature sensing fuse 701 is lower, it will burnt out firstly so that no current flows through thesurge protection indicator 602 and then extinguishes, but current still flows to the two-endtemperature sensing fuse 704. Finally, the two-endtemperature sensing fuse 704 is burned off and no current flows through themetal oxide varistor 702. Therefore, themetal oxide varistor 702 emits no heat. - c) N-G mode: The
metal oxide varistor 703 has abnormality and heats gradually. Since it resists against the two-endtemperature sensing fuses temperature sensing fuse 701 has a lower temperature, it will burn off at first so that thesurge protection indicator 602 has no current and then extinguishes, but current still flows through the twoendtemperature sensing fuse 704. Finally, the two-endtemperature sensing fuse 704 is burnt to break out and no current flows through themetal oxide varistor 703. Therefore, themetal oxide varistor 703 emits no heat. - (2) The transient/surge absorber suffers from a high voltage and then is destroyed instantly
- a) L-N mode: When abnormality occurs, and high voltage retains, the
metal oxide varistor 402 will short-circuit instantly. Since a large current flows into the first three-end fuse 50 so that the first three-end fuse 50 heats and then breaks out. Other than the current path of themetal oxide varistor 402 being broken, the path of thesurge protection indicator 602 will be broken so that thesurge protection indicator 602 extinguishes. - b) L-G mode: When abnormality occurs, and high voltage retains, the
metal oxide varistor 702 will short-circuit instantly, since a large current flows through the first three-end fuse 50, the first three-end fuse 50 heats instantly and then breaks off. Other than the current path of themetal oxide varistor 702 is broken, the path of thesurge protection indicator 602 will be broken so that thesurge protection indicator 602 extinguishes. - c) N-G mode: L-G mode: When abnormality occurs, and high voltage retains, the
metal oxide varistor 703 short-circuits instantly, since a large current flows through the second three-end fuse 80, the second three-end fuse 80 heats instantly and then breaks out. Other than the current path of themetal oxide varistor 703 is broken and the path of thesurge protection indicator 602 will be broken so that thesurge protection indicator 602 extinguishes. - In summary, other than indicating the abnormalities of the L-N, L-G, N-G surge absorbing devices, the circuit for indicating abnormality of a threemode surge absorber of a public electric power of the present invention assure that no leakage occurs as it is destroyed in all modes. Besides, herein, the metal oxide varistor is taken as an example of the first and second surge absorbing devices of the present invention, however, the surge absorbing device, such as a gas tube, a transient voltage suppressor or sidactor, etc. serves in the present invention. Especially, the three-
end fuses - The present invention is thus described, it will be obvious that the same may be varied in many ways. Such variations are not to be regarded as a departure from the spirit and scope of the present invention, and all such modifications as would be obvious to one skilled in the art are intended to be included within the scope of the following claims.
Claims (10)
1. A circuit for indicating abnormality of a three-mode surge absorber of a public electric power serially connected to an input end and an output end of a public power supply, said input end having a line input end, a neutral input end, and a ground input end; said output end including a line output end, a neutral output end, and a ground output end for indicating abnormalities of a three-mode surge absorber of a public electric power completely; said circuit for indicating abnormality of a three-mode surge absorber of a public electric power comprising:
a first surge absorbing device coupled to said line input end and said neutral input end for absorbing a surge between said line input end and said neutral input end;
a first three-end fuse coupled to said first surge absorbing device and said line input end for preventing abnormality of parts;
an abnormal indication circuit coupled to said first three-end fuse for indicating the abnormality of three-mode in public power supply;
a second surge absorbing device coupled to said abnormal indication circuit, said neutral input end and said ground input end for absorbing a surge between said neutral input end and said ground input end; and
a second three-end fuse coupled to said neutral input end and said second surge absorbing device for preventing the abnormality of parts.
2. The circuit for indicating abnormality of a three-mode surge absorber of a public electric power as claimed in claim 1 , wherein said first surge absorbing device comprises:
a two-end temperature sensing fuse having one end coupled to said line input end and another end coupled to a first end of said first three-end fuse; and
a surge absorbing device having one end coupled to said line input end and another end coupled to a second end of said first three-end fuse;
wherein when the surge absorbing device has abnormality and then is heated gradually, said two-end temperature sensing fuse will be burnt to break out finally.
3. The circuit for indicating abnormality of a three-mode surge absorber of a public electric power as claimed in claim 1 , wherein said abnormal indication circuit comprises:
a resistor having one end coupled to a third end of said first three-end fuse;
a diode having one end coupled to the resistor; and
a light emitting diode having one end coupled to a diode, and another end coupled to said second surge absorbing device.
4. The circuit for indicating abnormality of a three-mode surge absorber of a public electric power as claimed in claim 1 , wherein said second surge absorbing device comprises:
a first two-end temperature sensing fuse having one end coupled to said abnormal indication circuit and another end coupled to a second end of said second three-end fuse;
a first surge absorbing device having one end coupled to said line output end;
a second surge absorbing device having one end coupled to a second end of said second three-end fuse and another end coupled to another end of said first surge absorbing device; and
a second two-end temperature sensing fuse having one end coupled to said second surge absorbing device and another end coupled to said ground output end;
wherein when said first surge absorbing device has abnormality, it will heat gradually and finally said first two-end temperature sensing fuse will burn and then break out; when the second surge absorbing device has abnormality, and heats gradually, said first two-end temperature sensing fuse will burn and then break out, and finally, the second two-end temperature sensing fuse burn and break out.
5. The circuit for indicating abnormality of a three-mode surge absorber of a public electric power as claimed in claims 2 , wherein the first and second surge absorber are selected from one of a group containing metal oxide varistors, gas tubes, transient voltage suppresser and sidactor.
6. The circuit for indicating abnormality of a three-mode surge absorber of a public electric power as claimed in claims 4, wherein the first and second surge absorber are selected from one of a group containing metal oxide varistors, gas tubes, transient voltage suppresser and sidactor.
7. A multiple-end fuse, at least one ends being added to a two-end fuse, when a current sufficient burnt said two-end fuse to break off flowing through a first end and a second end of said two-end fuse, a third end or other ends being cut off so that said third end or other ends are completely isolated from said first or said second ends.
8. The multiple-end fuse as claimed in claim 7 , wherein the multiple-end fuse is a three-end fuse.
9. The multiple-end fuse as claimed in claim 7 , wherein the multiple-end fuse is one selecting from a group containing a copper traces on a print circuit board, and jumping wires on a printing circuit board.
10. The multiple-end fuse as claimed in claim 7 , wherein the multiple-end fuse is disposed flatly, uprightly or formed as a box.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US10/173,598 US20020153989A1 (en) | 2000-10-26 | 2002-06-19 | Circuit for indicating abnormality of three-mode surge absorber of public electric power and a multiple-end fuse |
Applications Claiming Priority (4)
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TW089218628U TW467389U (en) | 2000-10-26 | 2000-10-26 | Circuit to display the abnormality of three-phase surge absorber of utility power and multi-terminal fuse |
TW89218628 | 2000-10-26 | ||
US09/717,345 US6483686B1 (en) | 2000-10-26 | 2000-11-22 | Circuit for indicating abnormality of three-mode surge absorber of public electric power and a multiple-end fuse |
US10/173,598 US20020153989A1 (en) | 2000-10-26 | 2002-06-19 | Circuit for indicating abnormality of three-mode surge absorber of public electric power and a multiple-end fuse |
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US09/717,345 Division US6483686B1 (en) | 2000-10-26 | 2000-11-22 | Circuit for indicating abnormality of three-mode surge absorber of public electric power and a multiple-end fuse |
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US20020153989A1 true US20020153989A1 (en) | 2002-10-24 |
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US09/717,345 Expired - Fee Related US6483686B1 (en) | 2000-10-26 | 2000-11-22 | Circuit for indicating abnormality of three-mode surge absorber of public electric power and a multiple-end fuse |
US10/173,598 Abandoned US20020153989A1 (en) | 2000-10-26 | 2002-06-19 | Circuit for indicating abnormality of three-mode surge absorber of public electric power and a multiple-end fuse |
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US09/717,345 Expired - Fee Related US6483686B1 (en) | 2000-10-26 | 2000-11-22 | Circuit for indicating abnormality of three-mode surge absorber of public electric power and a multiple-end fuse |
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JP (2) | JP3079392U (en) |
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JPH10199396A (en) * | 1997-01-13 | 1998-07-31 | Taiheiyo Seiko Kk | Mutipole type fuse element and multipole type fuse using such element |
FR2761204B1 (en) * | 1997-03-24 | 1999-05-14 | Siemens Automotive Sa | DEVICE FOR DISTRIBUTING ELECTRICAL ENERGY IN MULTIPLE PARALLEL-POWERED CIRCUITS, AND METHOD FOR MANUFACTURING THE DEVICE |
CN1244304A (en) * | 1998-02-23 | 2000-02-09 | 三菱麻铁里亚尔株式会社 | Surge absorber |
TW366619B (en) * | 1998-03-13 | 1999-08-11 | Transpacific Optics Llc | A breaker and the surge protector device for the breaker |
JP3978631B2 (en) * | 1998-09-09 | 2007-09-19 | 太平洋精工株式会社 | Multi-polar fuse element with rare short judgment function, fuse and method of manufacturing the same |
US6282073B1 (en) * | 1998-12-22 | 2001-08-28 | Act Communications, Inc. | Environmentally insensitive surge suppressor apparatus and method |
US6157528A (en) * | 1999-01-28 | 2000-12-05 | X2Y Attenuators, L.L.C. | Polymer fuse and filter apparatus |
-
2000
- 2000-10-26 TW TW089218628U patent/TW467389U/en not_active IP Right Cessation
- 2000-11-22 US US09/717,345 patent/US6483686B1/en not_active Expired - Fee Related
- 2000-12-04 JP JP2000008567U patent/JP3079392U/en not_active Expired - Lifetime
-
2001
- 2001-04-03 JP JP2001001845U patent/JP3080798U/en not_active Expired - Lifetime
-
2002
- 2002-06-19 US US10/173,598 patent/US20020153989A1/en not_active Abandoned
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120229995A1 (en) * | 2009-08-11 | 2012-09-13 | Alan Chapman | Solenoid |
US20130093595A1 (en) * | 2010-12-28 | 2013-04-18 | Sungjin Techwin Co Ltd | Device and method for displaying the lifecycle of a surge protection device |
US8842017B2 (en) * | 2010-12-28 | 2014-09-23 | Sungjin Techwin Co., Ltd. | Device and method for displaying the lifecycle of a surge protection device |
EP2658066A1 (en) * | 2012-04-26 | 2013-10-30 | Technischer Vor Ort Service OHG | Device for the detection of overvoltage |
EP2658067A1 (en) * | 2012-04-26 | 2013-10-30 | Technischer Vor Ort Service OHG | Device for overvoltage detection |
EP2658068A1 (en) | 2012-04-26 | 2013-10-30 | Technischer Vor Ort Service OHG | Device for overvoltage detection |
GB2507843A (en) * | 2012-11-07 | 2014-05-14 | Wistron Neweb Corp | Surge protection device for a three wire power source |
GB2507843B (en) * | 2012-11-07 | 2014-11-26 | Wistron Neweb Corp | Surge protection device for power source having live, neutral and earth wire |
Also Published As
Publication number | Publication date |
---|---|
TW467389U (en) | 2001-12-01 |
JP3080798U (en) | 2001-10-05 |
JP3079392U (en) | 2001-08-17 |
US6483686B1 (en) | 2002-11-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |