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101. 发明专利

JPH08205381A LOAD CONTROL DEVICE 失效
公开(公告)号：JPH08205381A
公开(公告)日：1996-08-09
申请号：JP1359695
申请日：1995-01-31
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： IWAMI EIJI , INOUE HIROMICHI
IPC分类号： H02H3/08 , H02H3/033
摘要： PURPOSE: To provide a load control device in which the priority of an opening switch can be easily set according to a degree of importance. CONSTITUTION: A load apparatus is connected to the load side of a master breaker C having a predetermined breaking characteristic through a branch breaker B and a switch in which the priority of the opening operation is predetermined and when the current of a predetermined level flows through the aster breaker, the switch is opened. Therefore, in a load control device which has a current detecting means 1 for detecting a current flowing through the master breaker, a priority setting means 6 for setting priority, an opening and closing means 3 having the switch and a control means 14 for outputting an opening signal to the switch according to the priority on the basis of the detected current value of the current detecting means, a state detecting part for detecting the current-flowing state of the load apparatus and an automatic setting part for automatically setting the priority on the basis of the length of current-flowing time.

102. 发明专利

JPH08205379A LOAD CONTROL DEVICE 失效
公开(公告)号：JPH08205379A
公开(公告)日：1996-08-09
申请号：JP1282195
申请日：1995-01-30
申请人： MATSUSHITA ELECTRIC WORKS LTD
发明人： IWAMI EIJI , INOUE HIROMICHI
IPC分类号： H02H3/08 , H02H3/033 , H02H3/04
摘要： PURPOSE: To provide a load control device which can easily grasp the state of a master breaker and a load apparatus. CONSTITUTION: In a load control device in which a load apparatus is connected to the load side of a master breaker C having a predetermined breaking characteristic through a branch breaker B and a switch 4 with the priority of the opening operation predetermined and when the current of a predetermined level flows through the master breaker, the switch is opened according to the priority and which has a current detecting means 1 for detecting the current flowing through the master breaker, an opening and closing means 3 comprising switches and a control means 5 for outputting an opening signal to the switches according to the priority on the basis of the detected current value. Therefore, a time control part 7 for outputting a control signal to a voice control part 12 at every predetermined interval is provided and at the same time a voice outputting means 15 for outputting the state of the current flowing through the master breaker and the current-carrying state of the load apparatus by a voice on the basis of the signal of the voice control part is provided.

103. 发明专利

JPH08130826A CONNECTOR 失效
公开(公告)号：JPH08130826A
公开(公告)日：1996-05-21
申请号：JP26911594
申请日：1994-11-01
申请人： MITSUBISHI ELECTRIC BILL TECH
发明人： ITO RYOICHI
IPC分类号： H02H3/033
摘要： PURPOSE: To prevent the tripping of a circuit breaker by cutting off a second plug socket connected with a load having lower priority order by means of an electromagnetic contactor when the sum of load currents which are the outputs of first and second current transformers exceeds a prescribed value which is smaller than the preset tripping value of a circuit breaker. CONSTITUTION: When a microwave oven 4 connected to a plug socket 2 has a higher priority order than a hot carpet 5 connected to another plug socket 3 has, the tripping of the power supplyside circuit breaker l of the plug sockets 2 and 3 can be prevented by temporarily cutting off the carpet 5 having lower priority order even when the oven 4 and carpet 5 are simultaneously used in excess of the capacity of the breaker l. In other words, the priority order of a plurality of loads connected to a plurality of plug sockets is decided and, when the sum of the load capacities of the loads reaches a value preset in the RAM 8b of a controller 8, the load having lower priority order is disconnected from the power supply.

104. 发明专利

JPH0833187A POWER DISTRIBUTOR 失效
公开(公告)号：JPH0833187A
公开(公告)日：1996-02-02
申请号：JP15833594
申请日：1994-07-11
申请人： FUJITSU GENERAL LTD
发明人： FUKADA AKIYOSHI
IPC分类号： H02H3/033 , H02H3/06
摘要： PURPOSE:To recover a conduction state when the recovery cancellation current value of a load is reached when a total load current value is broken by breaking the conduction to the load in a preset order when the total load current value exceeds a limitation current value. CONSTITUTION:A current I from a power supply 1 to a total load is detected by a total load current detection part 2 and a switcher 3n is broken via a switcher drive part 6n in a set order by a breaking order setting part 9 to stop power supply to a load 5n when the detected current exceeds a set value Im by a limitation current value setting part 8 stored at a memory part 12. The current value of the load 5n is detected by a current detection part 4n, each maximum value of each load is recorded at a memory part 12, and a value Inmin obtained by subtracting the maximum value from a limitation value Im is stored as the recovery cancellation current value of each load. Then, Icmin of the load is compared with the total current I in an order according to the recovery order setting part 10 and the conduction to the load recovers in the case of I

105. 发明专利

JPH07212959A OVERCURRENT RELAY WITH PROTECTION COORDINATION ELEMENT 失效
公开(公告)号：JPH07212959A
公开(公告)日：1995-08-11
申请号：JP552494
申请日：1994-01-24
申请人： MEIDENSHA ELECTRIC MFG CO LTD
发明人： OKAMOTO ISAO
IPC分类号： H02H3/033 , H02H3/28 , H02H3/36
摘要： PURPOSE:To provide a overcurrent relay provided with protective coordination element which functions even when upper and lower overcurrent relays arranged in series are set at a point strictly without a margin with regard to a feeding power system for feeding power to a plurality of feeding sections through the upper and lower overcurrent relays connected in paralles. CONSTITUTION:Output currents from overcurrent relays 51-2 and 51-3 are provided to each oil 11a or 11b in a total current transformer 11. A current carried at a coil 11c is fed to a control coil 13b of an overcurrent relay 13. For example, if there is a failure in a feeding section at a point (A), current carried at a drive coil 13a of the relay 13 is canceled with a current carried through the control coil 13b from the coil 11c.

106. 发明专利

JPH07193978A POWER INTERRUPTION SYSTEM 失效
公开(公告)号：JPH07193978A
公开(公告)日：1995-07-28
申请号：JP33774293
申请日：1993-12-28
申请人： TOKYO GAS CO LTD
发明人： TANAKA TAKASHI , FURUKAWA HIDEKI , KANEKO ISAO , FUJISAWA KAZUYA , MASUKO TOKUSHIGE , KOMAKI MICHINORI , NAKAYAMA KANAKO
IPC分类号： H02H3/08 , H02H3/00 , H02H3/033 , H02H3/06
摘要： PURPOSE:To suppress interruption of a breaker due to overccurent, to allow a small current contract, and to lighten the load on an appliance due to turn ON/OFF of power while enhancing the operability. CONSTITUTION:An adapter 2 is connected between an appliance 6c which can be interrupted with an overcurrent and a receptacle. When the detected current exceeds a contract current limit, the breaker 1 interrupts the adapter and if the contract current exceeds the limit even after interruption of all adapters, the breaker interrupts. The breaker makes a decision whether somebody is present based on the operating state of alliance and relaxes the conditions of automatic interruption control set for safety if some person is recognized. The alliances are interrupted only partially when the current exceeds the limit and if the contract current exceeds it continuously, the breaker functions to interrupt power in safety. Furthermore, since the conditions of automatic interruption control for safety are relaxed, long time operation is allowed to enhance the operability.

107. 发明专利

JPH07193974A POWER INTERRUPTION SYSTEM 失效
公开(公告)号：JPH07193974A
公开(公告)日：1995-07-28
申请号：JP33758193
申请日：1993-12-28
申请人： TOKYO GAS CO LTD
发明人： TANAKA TAKASHI , FURUKAWA HIDEKI , KANEKO ISAO , FUJISAWA KAZUYA , MASUKO TOKUSHIGE , KOMAKI MICHINORI , NAKAYAMA KANAKO
IPC分类号： H02H3/00 , H02H3/033
摘要： PURPOSE:To suppress interruption of a breaker due to overcurrent, to allow a small current contract, and to lighten the load on an appliance due to turn ON/OFF of power. CONSTITUTION:An adapter 2 is connected between an appliance 6c which can be interrupted with an overcurrent and a receptacle, and a communication means is provided for a breaker 1. The breaker 1 stores the priority of interruption for the adaptor and when a detected current exceeds a contract current limit, the adapter is interrupted according to the priority. If the overcurrent is eliminated in the way of interruption, the adaptor is reset at that moment. If the current exceeds the limit even after interruption of all adapters, the breaker interrupts. Consequently, the appliances are interrupted only partially even if the current exceeds the limit and when the contract current exceeds continuously, the breaker functions to interrupt power in safety. Furthermore, various signals may be transmitted from the adapter to the breaker.

108. 发明专利

JPH07193969A POWER INTERRUPTION SYSTEM 失效
公开(公告)号：JPH07193969A
公开(公告)日：1995-07-28
申请号：JP33068693
申请日：1993-12-27
申请人： TOKYO GAS CO LTD
发明人： TANAKA TAKASHI , FURUKAWA HIDEKI , KANEKO ISAO , FUJISAWA KAZUYA , MASUKO TOKUSHIGE , KOMAKI MICHINORI , NAKAYAMA KANAKO
IPC分类号： H02H3/033
摘要： PURPOSE:To protect an electric appliance over-loading due to abrupt interruption of power thereto by interrupting power to preselected electric appliances when the total current exceeds a contact current limit. CONSTITUTION:Adapters 2 are provided for an air-conditioner 6c, a hair dryer 6d and a microwave oven 6e which do not cause serious trouble upon abrupt power interruption. When the total current exceeds a contact current limit, an interrupting mechanism built in the adapter 2 functions to interrupt power to the electric appliance connected with the adapter 2. If the total current does not drop below the contract current limit, a breaker 1 functions to interrupt power to all the systems. This system realizes efficient use of power without increasing the contract current limit while taking account of temporary increase of power.

109. 发明专利

JPH07193968A POWER INTERRUPTION SYSTEM 失效
公开(公告)号：JPH07193968A
公开(公告)日：1995-07-28
申请号：JP33751793
申请日：1993-12-28
申请人： TOKYO GAS CO LTD
发明人： TANAKA TAKASHI , FURUKAWA HIDEKI , KANEKO ISAO , FUJISAWA KAZUYA , MASUKO TOKUSHIGE , KOMAKI MICHINORI , NAKAYAMA KANAKO
IPC分类号： H02H3/093 , H02H3/00 , H02H3/033 , H02J3/00
摘要： PURPOSE:To avoid interruption by a breaker due to overcurrent, to allow a small current contract, and to prevent an accident of an appliance not turned OFF inadvertently. CONSTITUTION:An adapter 2 is connected between an appliance 6c which can be interrupted with an overcurrent and a receptacle. When a detected current exceeds a contract current limit, a breaker 1 interrupts the adapter current and if the contract current limit is exceeded even after interruption of all adapters, the breaker is interrupted. An allowable conduction time is set for the breaker or the adapter and it is interrupted when the working time of adapter exceeds the allowable time. Consequently, the appliances are interrupted only partially even if the contract current limit is exceeded and when the current exceeds the contract limit continuously, the breaker functions to interrupt power in safety. When the current flows longer than the allowable time, a decision is made that an appliance is not turned OFF inadvertently and power is interrupted automatically.

110. 实用新型

JPH0633338U 失效
公开(公告)号：JPH0633338U
公开(公告)日：1994-04-28
申请号：JP6951592
申请日：1992-10-06
IPC分类号： H01H33/59 , H01H71/74 , H02H3/033

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