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1. 发明专利

JP2006141111A Earth fault detector 审中-公开
标题翻译：接地故障检测器
公开(公告)号：JP2006141111A
公开(公告)日：2006-06-01
申请号：JP2004327348
申请日：2004-11-11
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： TSUCHIMOTO YUJI
IPC分类号： H02H3/347 , H02H3/16 , H02H3/34 , H02M7/48
摘要： PROBLEM TO BE SOLVED: To provide an earth fault detector for preventing an inoperation of a load interruption due to a high-frequency effect of an inverter when an earth fault occurs, and a burnout of a coil due to an increase in an iron loss of a zero-phase-sequence current transformer by a high-frequency component. SOLUTION: The earth fault detector is provided with the zero-phase-sequence current transformer 3 for detecting an earth fault current in an AC electric path, a low pass filter 6 connected to the zero-phase-sequence current transformer, a level discriminator 7 for outputting a signal passing through the low pass filter when it exceeds a predetermined value, a signal width discriminator 8 for outputting an output from the level discriminator when it has a predetermined width or more, a high pass filter 11 connected to the zero-phase-sequence current transformer, a level discriminator 12 for outputting a signal passing through the high pass filter when it exceeds another predetermined value, a timer circuit 13 for outputting an output from the level discriminator when it continues for a predetermined period, a magnetic apparatus 4 for carrying a current in a switching element 5 and disconnecting a circuit breaker in the AC electric path in response to an output from an OR circuit 14 for inputting outputs from the signal width discriminator and the timer circuit. COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种接地故障检测器，用于在接地故障发生时防止由于逆变器的高频效应引起的负载中断的操作，以及由于线圈的增加导致的线圈的烧坏零相电流互感器由高频分量铁损。
解决方案：接地故障检测器配有用于检测交流电路中的接地故障电流的零相电流互感器3，连接到零相电流互感器的低通滤波器6，电平鉴别器7，用于在超过预定值时输出通过低通滤波器的信号;信号宽度鉴别器8，用于在具有预定宽度或更大宽度时输出电平鉴别器的输出;高通滤波器11连接到零相位电流互感器;电平识别器12，用于当超过其它预定值时，输出通过高通滤波器的信号;定时器电路13，用于当电平鉴别器持续预定时间时输出; 用于承载开关元件5中的电流并响应于OR电路14f的输出断开AC电路中的断路器的磁性装置4 或输入来自信号宽度鉴别器和定时器电路的输出。版权所有（C）2006，JPO＆NCIPI

2. 发明专利

JP2010127889A Flux-gate type magnetic sensor 有权
标题翻译：通用型门磁传感器
公开(公告)号：JP2010127889A
公开(公告)日：2010-06-10
申请号：JP2008306258
申请日：2008-12-01
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： WATANABE YOSHIMASA , NISHIURA RYUICHI , NISHIZAWA HIROSHI , NAKAJIMA HAJIME , MORI MITSUGI , TSUCHIMOTO YUJI
IPC分类号： G01R33/04 , G01R15/20
摘要： PROBLEM TO BE SOLVED: To provide a flux-gate type magnetic sensor capable of reducing power consumption by devising a shape of a magnetic core. SOLUTION: The flux-gate type magnetic sensor includes an annular core 3 made of a magnetic material having a first part 3a with a cross section S1 and a second part 3b having a cross section S2 smaller than the cross section S1, excitation winding 1 wound around the first part 3a of the core 3, detection winding 2 wound around the second part 3b of the core 3, or the like. Preferably, the core 3 includes a laminate of a ring-formed magnetic member 4 and a C-shaped magnetic member 5. COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供能够通过设计磁芯的形状来降低功耗的磁通门型磁传感器。解决方案：磁通门型磁传感器包括由具有横截面S1的第一部分3a和具有小于横截面S1的横截面S2的第二部分3b的由磁性材料制成的环形芯3，激励缠绕在芯3的第一部分3a周围的绕组1，卷绕在芯3的第二部分3b上的检测绕组2等。优选地，芯3包括环形磁性构件4和C形磁性构件5的层叠体。版权所有（C）2010，JPO＆INPIT

3. 发明专利

JP2013061322A Direct current detection apparatus 有权
标题翻译：直流电流检测装置
公开(公告)号：JP2013061322A
公开(公告)日：2013-04-04
申请号：JP2012176093
申请日：2012-08-08
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： WATANABE YOSHIMASA , NISHIZAWA HIROSHI , NAKAJIMA HAJIME , MORI MITSUGI , TSUCHIMOTO YUJI , HAMANO KEITA
IPC分类号： G01R15/18 , G01R35/02
摘要： PROBLEM TO BE SOLVED: To provide a direct current detection apparatus capable of calibrating sensor sensitivity to detect a current to be measured with high accuracy even under circumstances where a use environmental temperature varies.SOLUTION: A flux gate type current sensor includes: a flux gate current sensor that has a magnetic material core for forming a closed magnetic circuit, an excitation winding wound around the magnetic material core, and a detection winding wound around the magnetic material core, and in which a current line to be measured penetrates the magnetic material core; an AC exciting part that generates an excitation magnetic field by energizing the excitation winding; a filter part that extracts only the second harmonic component of the excitation magnetic field from an output voltage waveform of the detection winding; an arithmetic processing part that calculates a current value flowing through the current line to be measured on the basis of the output of the filter part; and an integration processing part and others that perform integration processing of the output voltage waveform of the detection winding. The arithmetic processing part assumes a use environmental temperature of the magnetic material core from the results of the integration processing and others, and temperature dependency of magnetic characteristics of the magnetic material core.
摘要翻译：要解决的问题：即使在使用环境温度变化的情况下，提供一种能够校准传感器灵敏度以便以高精度检测待测量的电流的直流检测装置。解决方案：磁通栅型电流传感器包括：磁通栅极电流传感器，具有用于形成闭合磁路的磁性材料芯，缠绕在磁性材料芯上的激励绕组，以及缠绕在磁性材料周围的检测绕组芯，并且其中待测量的电流线穿透磁性材料芯; 交流励磁部分，通过激励励磁绕组产生励磁磁场; 滤波器部分，其仅从检测绕组的输出电压波形中提取激励磁场的二次谐波分量; 运算处理部，其基于所述滤波部的输出来计算流过所述当前测量线的电流值; 以及执行检测绕组的输出电压波形的集成处理的积分处理部分等。运算处理部从集成处理等的结果考虑磁性材料芯的使用环境温度，以及磁性材料芯的磁特性的温度依赖性。版权所有（C）2013，JPO＆INPIT

4. 发明专利

JP2004096818A Ground fault interrupter 审中-公开
公开(公告)号：JP2004096818A
公开(公告)日：2004-03-25
申请号：JP2002251274
申请日：2002-08-29
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： TSUCHIMOTO YUJI , KAI KOJI
IPC分类号： H02H3/093 , H01H83/02 , H02H3/34 , H02H3/347
摘要： PROBLEM TO BE SOLVED: To provide a ground fault interrupter, in which when an abnormal ground fault current occurs, high-speed operation is possible with few unwanted operations due to noise.
SOLUTION: The ground fault interrupter comprises first ground fault detection circuits (7-13) that detect earth fault by detecting a plurality of times positive and negative signals of a ground fault component signal with a deciding level TH1, second ground fault detection circuits (14-20) that detects ground faults, when each of positive and negative is detected once as the ground fault signal exceeds a deciding level TH2, which is larger than the deciding level TH1 of positive-side and negative-side level discriminators 14 and 16, to reach positive and negative side signal width discriminators 15 and 17, and interrupting means (3, 5, and 6) that operate, when the first or second ground fault detection circuit detects a ground fault.
COPYRIGHT: (C)2004,JPO

5. 发明专利

JP2012159445A Dc leakage detecting device 有权
标题翻译：直流漏电检测装置
公开(公告)号：JP2012159445A
公开(公告)日：2012-08-23
申请号：JP2011020339
申请日：2011-02-02
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： WATANABE YOSHIMASA , NISHIZAWA HIROSHI , NAKAJIMA HAJIME , MORI MITSUGI , TSUCHIMOTO YUJI
IPC分类号： G01R31/02 , G01R15/18 , G01R15/20 , G01R33/04
摘要： PROBLEM TO BE SOLVED: To provide a DC leakage detecting device capable of detecting a leakage current within a rated range with high sensitivity, and further of reliably determining a ground fault accident even when a ground fault accident exceeding the rated range occurs.SOLUTION: A DC leakage detecting device 101 comprises: a flux gate current sensor 52 which includes an annular magnetic body core 3 for forming a closed magnetic circuit, an exciting winding 1 wound around the magnetic body core 3, and a detecting winding 2 wound around the magnetic body core 3 and in which at least two current lines 4 to be measured pass through the magnetic body core 3; a current control circuit 6 for electrically energizing the exciting winding 1 with a desired current waveform without depending on an impedance change of the exciting winding 1; a voltage detecting circuit 7 for detecting a voltage applied to the exciting winding 1; a filter circuit 8 for extracting only specific frequency component from an output voltage of the detecting winding 2; a leakage determining circuit 9 for determining whether or not an excessive leakage occurs based on an output of the voltage detecting circuit 7 and an output of the filter circuit 8; and the like.
摘要翻译：要解决的问题：提供一种能够以高灵敏度检测额定范围内的漏电流的直流泄漏检测装置，并且即使发生超过额定范围的接地故障事故，也可靠地确定接地故障事故。解决方案：直流泄漏检测装置101包括：磁通门电流传感器52，其包括用于形成闭合磁路的环形磁芯3，缠绕在磁芯3上的励磁绕组1和检测绕组 2缠绕在磁性体芯3上，其中要测量的至少两条电流线4穿过磁性体芯3; 电流控制电路6，用于以不需要励磁绕组1的阻抗变化的方式，以期望的电流波形对励磁绕组1进行电激励; 用于检测施加到励磁绕组1的电压的电压检测电路7; 用于从检测绕组2的输出电压中仅提取特定频率分量的滤波器电路8; 泄漏确定电路9，用于基于电压检测电路7的输出和滤波器电路8的输出来确定是否发生过度的泄漏; 等等。版权所有（C）2012，JPO＆INPIT

6. 发明专利

JP2008039609A Energizing information measurement device and circuit breaker provided with the energizing information measurement device 审中-公开
标题翻译：能源信息测量设备提供信息测量设备和断路器
公开(公告)号：JP2008039609A
公开(公告)日：2008-02-21
申请号：JP2006214830
申请日：2006-08-07
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： MAKIMOTO MITSUHIRO , TSUCHIMOTO YUJI
IPC分类号： G01R19/00 , H01H83/02
摘要： PROBLEM TO BE SOLVED: To eliminate the restriction in the conventional energizing information measurement device if an electric circuit is single-phase two wires, it must be connected between two phase and three phase of the circuit breaker.
SOLUTION: The device comprises: the multiplexer 36 for out putting a signal corresponding to the phase voltage of at least one circuit among a plurality of channels, based on the switching signal S3 imparted by the arithmetic means 26, by switching the channel outputs signal corresponding to the phase voltage; the pulse wave converting circuit 34 for converting the signal corresponding to the phase voltage outputted from the multiplexer 36 into the pulse wave form; and the timer circuit 35 for obtaining the period of phase voltage by measuring the time between the prescribed variation time points. The arithmetic means 26 uses the period of phase voltage obtained from the timer circuit 35 for operating the energizing information.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了消除常规激励信息测量装置中的电路是单相两线的限制，它必须连接在断路器的两相和三相之间。解决方案：该装置包括：多路复用器36，用于根据由算术装置26赋予的切换信号S3，在多个信道中输出与至少一个电路的相电压相对应的信号，通过切换信道输出对应于相电压的信号; 用于将与从多路复用器36输出的相电压对应的信号转换为脉波形式的脉波变换电路34; 以及定时器电路35，用于通过测量规定的变化时间点之间的时间来获得相位电压的周期。算术装置26使用从定时器电路35获得的相位电压的周期来操作激励信息。版权所有（C）2008，JPO＆INPIT

7. 发明专利

JP2010003513A Circuit breaker 审中-公开
标题翻译：电路断路器
公开(公告)号：JP2010003513A
公开(公告)日：2010-01-07
申请号：JP2008160599
申请日：2008-06-19
申请人： Mitsubishi Electric Corp , 三菱電機株式会社
发明人： TSUCHIMOTO YUJI
IPC分类号： H01H83/02
摘要： PROBLEM TO BE SOLVED: To provide a circuit breaker aiming at averaging of the number of opening and closing times of each phase contact and capable of improving contact life and durability for opening and closing.
SOLUTION: The circuit breaker is provided with a current detection means 3 installed in a plurality of electric paths 1 for detecting current flowing in each electric path, a calculating means 6 calculating a current actual value for each electric path on the basis of a detected signal of the current detection means, a variability period detection means 7 detecting a variability period of current in each electric path on the basis of an actual current value calculated by the calculating means, a switch 2 opening each electric path, and an opening and closing history information storage means 8 memorizing the opening and closing history information obtained for each electric path on the basis of the current actual value of the calculating means when the switch opens, a tripping means 9 opening the switch at the time when the current actual value of the calculating means is more than a predetermined value, by finding it from the variability period of the variability period detection means, at which the current actual value of the electric path having maximum opening and closing history information of the opening and closing history information storage means turns to a lower value.
COPYRIGHT: (C)2010,JPO&INPIT
摘要翻译：要解决的问题：提供一种旨在平均每相触点的打开和关闭时间的断路器，并且能够提高打开和关闭的接触寿命和耐久性。解决方案：断路器设置有电流检测装置3，其安装在多个电路1中，用于检测在每个电路中流动的电流;计算装置6，其基于以下步骤计算每个电路的当前实际值：电流检测装置的检测信号，可变性周期检测装置7，根据由计算装置计算出的实际电流值检测各电路中的电流的变化周期;开关2，每个电路断开，开口以及关闭历史信息存储装置8，当开关打开时，基于计算装置的当前实际值存储针对每个电气路径获得的打开和关闭历史信息;跳闸装置9，在当前实际时间通过从可变性周期检测m的可变性周期中求出，计算装置的值大于预定值其中具有开闭历史信息存储装置的最大打开和关闭历史信息的电路的当前实际值变为较低值。版权所有（C）2010，JPO＆INPIT

8. 发明专利

JPH05153725A GROUND FAULT DETECTOR 失效
公开(公告)号：JPH05153725A
公开(公告)日：1993-06-18
申请号：JP31242791
申请日：1991-11-27
申请人： MITSUBISHI ELECTRIC CORP
发明人： TSUCHIMOTO YUJI
IPC分类号： G01R31/02 , H02H3/34
摘要： PURPOSE:To prevent erroneous operation due to noise in ground fault detection by charging the storage section in a signal width decision unit with the output signal from a level decision unit and discharging the storage section based on an output signal from a zero-cross detecting circuit. CONSTITUTION:Level decision units 7, 8 compare positive and negative levels of ground fault current, respectively, with thresholds. Signal width decision units 9A, 10A charge capacitors 11, 12, respectively, with output signals from the level decision units 7, 8 and discharge the capacitors 11, 12 based on a reset signal fed from a zero-cross detecting circuit 18. Pulse signals are generated when the terminal voltages of the capacitors 11, 12 exceed thresholds respectively. When the count of the pulse signal exceeds a predetermined value, a switching element 16 and an electromagnetic unit 17 are energized to open a circuit breaker 4 thus interrupting an AC path 1. According to the constitution, ground fault can be detected positively even upon occurrence of noise on the AC path 1.

9. 发明专利

JPH118930A INSTRUMENT FOR MEASURING INFORMATION ON CURRENT APPLICATION TO CIRCUIT BREAKER 失效
公开(公告)号：JPH118930A
公开(公告)日：1999-01-12
申请号：JP5174698
申请日：1998-03-04
申请人： MITSUBISHI ELECTRIC CORP
发明人： MAKIMOTO MITSUHIRO , YAMAZAKI HARUHIKO , KAWAMURA MASANORI , KANETAKA SHIYUUKO , SAKATA MINORU , TSUCHIMOTO YUJI
IPC分类号： G01R19/00 , H01H73/00 , H02H3/34 , H02H3/38
摘要： PROBLEM TO BE SOLVED: To obtain the value of circuit voltage, power, quantity of power, etc., which is supplied to load as current application information by calculating the current and the voltage detected by the current transformer and the transformer within a circuit breaker, and converting the current value, the voltage value, the power value, and the quantity of power into signal output capable of indicating the information. SOLUTION: A current transformer 18 and a transformer 19 for measurement are accommodated in the main body 1 of a circuit breaker, and the current flowing to each conductor 2 separately from the current transformer 4 for overcurrent detection and the voltage (interphase voltage) between the conductors 2 are detected. A maximum current value storage circuit 24 stores and retains the maximum current value Imax. A multiplying circuit 25 which multiplies the outputs of a current A/D conversion circuit 21 and a voltage A/D conversion circuit 22 obtains the output corresponding to the output V of the voltage between the phases and the next, and a multiplying circuit 26 obtains that corresponding to a power W of the load. The outputs from the multiplying circuit 27 are added up into a quantity Wh of power. These outputs are inputted into a display 29 via an indication content selecting means 28. Thus, information on the current, the interphase voltage, and power, the quantity of power, etc., can be obtained from the information on the current supply and current application.

10. 发明专利

JPH10108455A DC POWER SUPPLY DEVICE 失效
公开(公告)号：JPH10108455A
公开(公告)日：1998-04-24
申请号：JP25641296
申请日：1996-09-27
申请人： MITSUBISHI ELECTRIC CORP
发明人： NOMURA TOSHIMITSU , TSUCHIMOTO YUJI
IPC分类号： H02M3/155
摘要： PROBLEM TO BE SOLVED: To lessen rush current when a power switch is turned on and thereby lessen the current capacity of a battery and prevent the decline in battery life by comparing the output voltage with a reference voltage and causing current to flow in a switching element by the output when it is judged that the output voltage exceeds the reference voltage. SOLUTION: The charging voltage Vc is settled to the battery voltage E when enough time has passed after a power switch 11 is turned on. When the charging voltage VC becomes 50% or above of the supply voltage E, the charging current IC1 begins to decrease and therefore a reference voltage Vref is so set that it may be equal to the voltage obtained by dividing, by a division ratio (n), the capacitor voltage VC at the time when the charging current IC1 decreases to a desired level, that is, the voltage Vref is set to a little lower level than the battery voltage E. Chopper current Is is not allowed to flow in a switching element 22 until the charging voltage VC reaches the reference voltage Vref, and so the charging current IC1 and the chopper current Is are not caused to flow at the same time.

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