CN101325137B - 串联电弧故障电流断续器以及方法 - Google Patents

串联电弧故障电流断续器以及方法 Download PDF

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CN101325137B
CN101325137B CN200710307187XA CN200710307187A CN101325137B CN 101325137 B CN101325137 B CN 101325137B CN 200710307187X A CN200710307187X A CN 200710307187XA CN 200710307187 A CN200710307187 A CN 200710307187A CN 101325137 B CN101325137 B CN 101325137B
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low
circuit
tripping mechanism
arc
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CN101325137A (zh
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C·小里弗斯
严卫中
周颖能
胡晓
S·德怀尔
P·维亚彦
V·普拉萨德
K·尤恩西
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements
    • H02H1/0007—Details of emergency protective circuit arrangements concerning the detecting means
    • H02H1/0015—Using arc detectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/14—Electrothermal mechanisms
    • H01H71/16—Electrothermal mechanisms with bimetal element
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
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    • H01H73/18—Means for extinguishing or suppressing arc

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Abstract

提供了串联电弧故障电流断续器以及方法。一种用于中断导线(20)上的电流的电路断续器(10)，包括可分离触头(24)、跳闸机构(26)、双金属器件(30)、微处理器(12)、串联电弧检测程序(14)、低通滤波电路(38)和高通滤波电路(36)。跳闸机构在被激活时选择性地断开可分离触头。串联电弧检测程序存在于微处理器中并包括多个串联故障检测算法(72，76，80，84)。低通滤波电路向串联电弧检测程序提供低通信号(48)。高通滤波电路向串联电弧检测程序提供高通信号(46)。程序基于低通信号从多个算法中选择特定算法。程序计算高通信号的多个统计学特征并且基于多个统计学特征与特定算法的比较发送输出信号(54)以激活跳闸机构。

Description

串联电弧故障电流断续器以及方法
领域领域
本公开内容涉及交流(AC)电气系统。尤其，本公开涉及串联电弧故障电流断续器及方法。
背景技术
在住宅、商业和工业应用中的电气系统通常包括用于接收来自公共能源(utility source)的电力的配电盘(pannel board)。通过配电盘将电力输送到一个或多个电流断续器，例如但不限定于电路断路器、跳闸单元等。
每个电流断续器将电力分配到指定的支路，每条支路向一个或多个负载提供电力。将电流断续器构造成如果一支路中的某些电力情形达到预定设定点则中断到该特定支路的电力。
例如，一些电流断续器由于接地故障而中断电力，并且通常称为接地故障电流断续器(GFCI)。当不平衡电流在导线和中性导线之间流动时，接地故障情形出现，这可能是由泄漏电流或者对地电弧故障造成的。
其它电流断续器由于电弧故障而中断电力，并且通常称为电弧故障电流断续器(AFCI)。电弧故障通常分为两大类，串联电弧和并联电弧。例如，当电流穿过单个导体中的间隙时会发生串联电弧。例如，当电流穿过两个导体之间时会发生并联电弧。
可惜地是，电弧故障不会造成常规电路断续器跳闸。当串联电弧发生时，尤其如此。串联电弧会潜在地造成住宅和商业大楼中的火灾。随着住宅变旧，这种情况发生的潜在性增加了。
因此，本公开内容明确了存在对用于检测AC电气系统中的串联电弧故障的电流断续器和方法的持久需要，该电流断续器和方法消除、缓解和/或减轻一个或多个上述以及其它的现有技术系统的有害影响。
发明内容
提供了一种用于中断导线上的电流的电路断续器。该电路断续器包括可分离触头(contact)、跳闸机构、双金属器件、微处理器、串联电弧检测程序(sequence)、低通滤波电路和高通滤波电路。跳闸机构当其被激活时选择性地断开可分离触头。微处理器与跳闸机构进行电通信。串联电弧检测程序存在于微处理器中并且包括多个串联故障检测算法。低通滤波电路从双金属器件提供低通信号到串联电弧检测程序。高通滤波电路从双金属器件提供高通信号到串联电弧检测程序。该程序基于低通信号从所述多个算法中选择特定算法。程序计算来自高通信号的多个统计学特征并且所述多个统计学特征与所述特定算法的比较，发送输出信号以激活跳闸机构。
还提供了一种用于检测导线上的串联电弧故障的方法。该方法包括感测与导线串联的双金属器件上的电流，使该电流经过高通滤波电路以产生高通信号，使该电流经过低通滤波电路以产生低通信号，基于高通信号计算多个统计学特征，基于低通信号从多个算法中选择特定的电弧串联算法，以及基于所述多个统计学特征和所述特定电弧串联算法确定跳闸命令。
本公开内容提供了一种电路断续器，通过使用该电路断续器的双金属器件测量负载电流而实现串联电弧检测。通过高通电路和低通电路对负载电流进行滤波。高通电路滤除了60Hz频率的内容，并且低通电路滤除了高频信号，例如电弧。通过微处理器对来自低通和高通电路的数据进行取样。取样后的低通电路用于确定负载的均方根(RMS)电流水平。用一个或多个统计学特征分析取样高通电路。一旦分析了这些统计学特征，则将这些特征的结果与取决于RMS电流水平的某些范围进行比较。如果特征落入特定RMS电流水平下的预先确定的范围之间，则计数器递增。如果计数器达到预定的值，那么处理器激励电路断续器的跳闸机构。如果特征没有落入范围之间，则计数器计数减小。一旦它达到默认值，则计数器停止减小。
通过下面的详细说明、附图和附加的权利要求，本领域技术人员将认识并理解本公开内容的上述以及其他特征和优点。
附图说明
图1是根据本公开的电弧故障电流断续器的示例性实施例的示意性描述；
图2是根据本公开用于图1的电弧故障电流断续器的双通道带通滤波电路的示例性实施例的电路图；
图3是图1的电弧故障电流断续器的功能性方框图；以及
图4至7示出了存在于图1的电弧故障电流断续器中的串联电弧检测程序的示例性实施例。
具体实施方式
参照附图特别是图1，示出了根据本公开的电弧故障电流断续器(AFCI)的示例性实施例，并且一般用参考标记10指代。AFCI 10包括微处理器12，串联电弧检测程序14存在于该微处理器12中。
有利地，程序14使用统计方法进行串联电弧检测。程序14处理一个或者多个可标识信号特性的信号特征。然后，程序14计算来自信号的多个表征性统计学特征。基于所述表征性统计学特征中的一个或多个，程序14执行特定的决策树以确定串联电弧故障的存在。
配置AFCI 10使其置于同跨过支路电路22的导线20和中性导线18进行电通信的负载16中。通过程序14将AFCI 10配置成一旦检测到串联电弧故障就选择性地断开跨接导线20的可分离触头24。以这种方式，AFCI 10适于检测支路电路22中的串联电弧并且中断到该支路电路的电力。
跳闸机构26以已知方式断开触头24。例如，可以通过现有技术中已知的弹簧式跳闸机构(未示出)断开触头24。
除了通过程序14来激活，还可以通过具有与导线20串联连接的双金属器件30的常规热磁过电流装置28来激励跳闸机构26。例如，一旦向双金属器件施加了过电流，双金属器件30就可以以已知方式弯曲，这导致了跳闸机构26的激活。而且，双金属器件30可以包括磁驱动衔铁32，一旦该双金属器件短路，它就可以激活跳闸机构26。
在一些实施例中，AFCI 10可以包括常规的并联电弧检测器32。将并联电弧检测器32配置成一检测到导线20上的并联电弧就激活跳闸机构26。因此，本公开的程序14可以与现有的AFCI并联电弧检测并行工作，或者与现有的AFCI检测分开工作。
AFCI 10以这种方式与提供了过电流和短路保护的过电流装置28、提供了并联电弧保护的并联电弧检测器32以及提供了串联电弧保护的程序14相结合。
AFCI 10包括用于检测双金属器件30上的感测电压的两级带通滤波电路34。参照图2和3来更详细地描述电路34。电路34包括高通滤波器36、低通滤波器38、放大器40、第一DC补偿42和第二DC补偿44。将电路34配置成产生高通信号46和低通信号48，将它们提供给模拟-数字(A/D)转换器50。
将高通滤波器36配置成滤除预定频率的导线20上的线路电流。在示出的实施例中，将滤波器36配置成滤除60 Hertz(Hz)的线路电流。来自滤波器36的线路电流被放大器40放大成高频信号，然后通过第一DC补偿42将其变换到A/D转换器50的预定频率范围。
将低通滤波器38配置成从导线20上的电流中滤除高频电弧和噪声。通过第二DC补偿44将来自滤波器38的高频信号放大变换到A/D转换器50的预定频率范围。
因此，高通滤波器36提供信号46到A/D转换器50，而低通滤波器38提供低通信号48到A/D转换器50。转换器50对高通信号46和低通信号48进行取样并将样本52提供给微处理器12。
微处理器12读取样本52并经过程序14运行这些样本。当程序14确定串联电弧出现时，微处理器12发送输出信号54到跳闸机构26以断开触头24。
参照图4至7详细描述程序14。
广泛地讲，程序14计算低通信号48的均方根(RMS)并且计算来自高通和低通信号46、48的多个统计学特征。基于低通信号48的RMS水平，程序14执行多个决策树中特定的决策树。每个决策树使用一个或多个所述统计学特征以确定是否出现串联电弧故障。
见图4，程序14开始于取样步骤60，其中该程序对信号46、48的低通和高通滤波器通道进行取样。获得样本之后，程序14在周期确定步骤62确定采集的样本是否来自完整的周期。如果程序14在步骤62确定没有采集完整周期，则程序重复取样步骤60。但是，如果程序14在步骤62确定采集到完整周期，则该程序继续到一个或多个计算步骤64、66。
在第一计算步骤64期间，程序14确定低通信号48的RMS电流水平。
在第二计算步骤66期间，程序14确定来自高通和低通信号46、48的多个统计学特征。例如，本公开期望程序14控制微处理器12来计算高通和低通信号46、48的统计学特征，例如但不限定于完整周期的平均值、完整周期的标准偏差、周期中任意窗口的最大标准偏差、周期中任意窗口的最小标准偏差、最大和最小标准偏差之比、周期中的每个样本的绝对值之和、周期中的每个相邻窗口的标准偏差(或者方差)的关系、RMS值等。
本公开期望程序14控制微处理器12来为高通和低通信号46、48计算特征的每个相邻点之间的差，例如但不限于两个相邻样本之间的最大差值、两个相邻样本之间的最小差值、最大差值与最小差值之比、差值的范围(例如，最大差值减去最小差值)、相邻点之间的差值之和等。
本公开期望程序14控制微处理器12来基于第二差值信号(上述第一差值信号中相邻点之间的差值)计算高通和低通信号46、48的统计学特征，例如但不限定于两个相邻样本之间的最大差值、两个相邻样本之间的最小差值、最大差值与最小差值的比、差值的范围(例如，最大差值减去最小差值)、相邻点之间的差值之和等。
程序14控制微处理器12基于低通信号48计算附加的统计学特征，该低通信号48已经通过10极矩形带通数字滤波器从大约700到大约3000Hz进行了数字滤波。在优选实施例中，10极矩形带通数字滤波器存在于微处理器12中。附加的统计学特征可以包括特征的计算，所述特征例如是但不限于，周期中的相邻点之间的差值的标准偏差(或方差)、允许处理器的寄存器溢出的周期中的相邻点之间的差值的标准偏差(或方差)的近似值、相邻点之间的差值的平均值。
程序14控制微处理器12基于低通信号48计算之前采集的周期中的RMS与最新周期的RMS的变化。
程序14控制微处理器12计算一个或多个峰值计数特征。例如，微处理器12可以计算当低通信号48为负时出现的高通信号46中的显著峰值的数目。像这里使用的，如果所讨论的点的幅值比一个标准偏差更远离整个周期的平均值，则识别出显著峰值。认为所有距离平均值一个标准偏差以上或者以下的彼此紧密邻近的点是一个峰。同样地，程序14控制微处理器12计算低于第一阈值的高通信号46中的峰数目以及高于第二阈值或者低于第三阈值的高通信号46中的峰数目。在示例性实施例中，第二和第三阈值与周期的平均值等距。
一旦程序14包括来自计算步骤64和66的所有必要的统计学特征，则该程序执行图5示出的算法选择步骤68。在选择步骤68期间，程序14基于低通信号48的RMS值确定执行多个算法中的哪个串联电弧故障算法。
在示出的实施例中，如果低通信号48的RMS值小于或者等于5amps，则选择步骤68在第一决策节点70执行第一算法72。如果低通信号48的RMS值大于5amps并且小于或者等于10amps，则选择步骤68在第二决策节点74执行第二算法76。如果低通信号48的RMS值大于10amps并且小于或者等于15amps，则选择步骤68在第三决策节点78执行第三算法80。如果低通信号48的RMS值大于15amps并且大于电路断续器10的额定负载的150％，则选择步骤68在第四决策节点82执行第四算法84。如果选择步骤68确定没有一个决策节点的条件得到满足，则程序14返回到取样步骤60。
有利地，程序14通过选择步骤68，基于低通信号48的RMS电流水平，应用不同的串联电弧故障算法72、76、80或者84。应该认识到，通过仅具有四个算法72、76、80和84的例子描述了本公开。当然，本公开期望程序14包括多于或者少于四个算法的任意多个算法。
图6示出了算法72、76、80和84的示例性实施例。在示出的实施例中，每个算法都包括相同的步骤，即周期计数重设步骤90、特征与范围比较的步骤92和设定“pass(通过)”步骤94。虽然每个算法72、76、80和84中的步骤实质上相同，但是周期计数重设步骤90和特征与范围比较的步骤92中的值对于每个算法都是不同的。
下面提供了当低通信号48的RMS值小于或者等于5 amps时使用的串联电弧故障算法72的示例性实施例。
例子——5 Amp串联电弧检测算法72
IF((RatioMaxMinSTDx＞＝88)AND(MaxSTDx＞＝400)AND
(STDSequence＞0)AND(Delta_RMS＜20))，THEN
CountThreshold＝2；
PASS＝TRUE；
IF((MinSTDx＞＝2)AND(MinSTDx＜40)AND(stdfullx＞＝45)AND
(F_RMS＞＝459)AND(SecondDiffMaxx＜148)AND(Delta_RMS＜8)AND
(FirstDiffSumx＜8))，THEN
CountThreshold＝2；
PASS＝TRUE；
IF((MinSTDx＜34)AND(stdfullx＞＝56)AND(FirstDiffSumx＜15)AND
(F_RMS＞＝163)AND(MinSTDx＜227)AND(SecondDiffMaxx＞＝151)AND
(MinSTDx＞0)AND(STDSequence＞0)AND(Delta_RMS＜10)AND
(SecondDiffMaxx＜195))，THEN
CountThreshold＝2；
PASS＝TRUE；
IF((stdfullx＞＝2000)AND(MaxSTDx＞＝3000)AND(MinSTD＞300))，THEN
CountThreshold＝2；
PASS＝TRUE；
IF((RMS_ORG＞25)AND(stdfullx＞＝195)AND(meanfullx＞＝502)AND
(Delta_RMS＜5)AND(MinSTDx＞＝126)AND(MinSTDx＜281)AND
(MaxSTDx＞＝350))，THEN
CountThreshold＝2；
PASS＝TRUE；
IF((RMS_ORG＞25)AND(stdfullx＞＝195)AND(Delta_RMS＜5))，THEN
CountThreshold＝2；
PASS＝TRUE；
IF((RatioMaxMinSTDx＞20)AND(RatioMaxMinSTDx＜500)AND
(MinSTDx＞＝4)AND(SecondDiffMaxx＜283))，THEN
CountThreshold＝2；
PASS＝TRUE；
IF((DimmerPeakCourt＞50)AND(RMS_ORG＞25)AND
(Delta_RMS＜16))，THEN
CountThreshold＝2；
PASS＝TRUE；
If((DimmerPeakCount＞50)AND(RMS_ORG＞14)AND(MinSTDx＜215))，
THEN
CountThreshold＝2；
PASS＝TRUE；
从上面的例子中可以看出，算法72提供了一系列的“IF(如果)”条件“THEN(则)”语句。如果条件是通过微处理器12计算的来自高通和低通信号46、48的特定特征。当特定条件为真时，那么算法72发送TRIP(即输出信号54)到跳闸机构26以断开触头24。
下面提供了当低通信号48的RMS值大于5amps且小于或者等于10amps时使用的串联电弧故障算法76的示例性实施例。
例子——10Amp串联电弧检测算法76
IF((RMS_ORG＞55)AND(RatioMaxMinSTDx＞＝88)AND
(MaxSTDx＞＝700)AND(STDSequence＞0)AND(Delta_RMS＜25))，THEN
CountThreshold＝2；
PASS＝TRUE；
IF((DimmerPeakCount＞60)AND(RMS_ORG＞90)AND
(AbsSumx＞＝378609)AND(MinSTDx＜53)AND(stdfullx＞20))，THEN
CountThreshold＝2；
PASS＝TRUE；
IF((DimmerPeakCount＞60)AND(RMS_ORG＜55)AND(stdfullx＞20))，
THEN
CountThreshold＝2；
PASS＝TRUE；
IF((DimmerPeakCount＞60)AND(55<RMS_ORG＜75)AND
(MinSTDx＞＝20)AND(FirstDiffMinx＞＝-551))，THEN
CountThreshold＝2：
PASS＝TRUE：
IF((DimmerPeakCount＞60)AND(RM_ORG＞＝65)AND
(RMS_ORG<100)AND(sldfullx＞20))．THEN
CountThreshold＝3：
PASS＝TRUE：
IF((PeakCount＜15)AND(RMS_ORG>＝86)AND(stdfullx＞20))．THEN
CountThreshold＝3：
PASS＝TRUE：
IF((MaxSTDx＜2727)AND(RatioMaxMinSTDx＜16)AND
(SecondDiffMaxx＞＝929)).THEN
CountThreshold＝1：
PASS＝TRUE：
IF((RMS_ORG＞55)AND(RMS_ORG＜80)AND
(RaIioMaxMinSTDx＞＝100)AND(slctfull＞800)AND(Della_RMS＜25))，
THEN
CountThreshold＝2：
PASS＝TRUE：
IF((RMS_ORG＞40)AND(RMS_ORG＜60)AND(stdfullx＞＝318)AND
(MinSTDx＜158)AND(Delta_RMS＜1O))，THEN
CountThreshold＝1：
PASS＝TRUE；
IF((RMS_ORG＜79)AND(MinSTDx＜131)AND(MinSTDx＞＝3)AND
(stdfullx＞＝46)AND((FirstDiffRatiox＜-.7048611)OR((FirstDiffRatiox＞＝-
.7048611)AND(MinSTDx＜52))))，THEN
CountThreshold＝3；
PASS＝TRUE；
IF((RMS_ORG＜79)AND(3＜＝MinSTDx＜131)AND(stdfullx＞＝46)AND
((FirstDiffRatiox＜-.7048611)OR((FirstDiffRatiox＞＝-.7048611)AND
(MinSTDx＜52))))，THEN
CountThreshold＝3；
PASS＝TRUE；
IF((DimmerPeakCount＞50)AND(stdfullx＞50)AND(RMS_ORG＜70)
AND(RMS_ORG＞45)AND(Delta_RMS＜30))，THEN
CountThreshold＝2；
PASS＝TRUE；
IF((DimmerPeakCount＞50)AND(RMS_ORG＜＝45)AND
(Delta_RMS＜16))，THEN
CountThreshold＝2；
PASS＝TRUE；
IF((RMS_ORG＜70)AND(stdfullx＞＝781)AND(meanfullx＞＝500)AND
(MaxSTDx＞＝1996))，THEN
CountThreshold＝2；
PASS＝TRUE.
例子——15A串联电弧检测算法80
IF((FullPeakCount＜200)AND(stdfullx＞＝1300)AND(MaxSTDx＞＝2363)
AND(Delta_RMS＜50))，THEN
CountThreshold＝1；
PASS＝TRUE；
IF((PeakCount＜12)AND(SecondDiffSumx＜117)AND(MaxSTDx＞1000))，
THEN
CountThreshold＝1；
PASS＝TRUE；
IF((MinSTDx＜61)AND(FirstDiffMinx＜-259)AND(FirstDiffSumx＞＝9)AND
(MaxSTDx＞＝286))，THEN
CountThreshold＝1；
PASS＝TRUE；
IF((RMS_ORG＞170)AND(MaxSTDx＞＝1000)AND(MinSTDx＜155)AND
(Delta_RMS＜20))，THEN
CountThreshold＝1；
PASS＝TRUE；
If((RMS_ORG＞170)AND(SecondDiffMaxx＞＝347)AND(stdfullx＜148))，
THEN
CountThreshold＝1；
PASS＝TRUE.
例子——150％额定电流串联电弧检测算法84
IF((MaxSTDx＞400)AND(Delta_RMS＜40))，THEN
CountThreshold＝1；
PASS＝TRUE.
因此，算法76、80、84也提供了一系列的“如果”条件“则”语句。如果条件是通过微处理器12计算的来自高通和低通信号46、48的特定特征。当特定条件为真时，那么算法14设定PASS＝TRUE，并且周期计数器递增。该算法将周期计数器与计数阈值进行比较，其在PASS＝TRUE时设定。如果周期计数器大于或者等于计数阈值，则算法14发送TRIP(即输出信号54)到跳闸机构26以断开触头24。
还应该注意的是，可以在这里使用术语“第一”、“第二”、“第三”、“上”、“下”等修改各种元素。除非特别说明，否则这些修饰语并不暗示对所修改元素的空间、顺序或者等级排序。
虽然参照一个或多个示例性实施例描述了本公开内容，但是本领域技术人员会理解可以进行各种变化并且可以用等效物代替其中的要素，而没有脱离本公开内容的范围。而且，可以进行许多变形以使特定的情形或材料适合本公开内容的教导，而没有脱离其范围。因此，这意味着没有将本公开内容限制到期望作为最佳模式而公开的特定实施例，但是，本公开内容将包括落入所附的权利要求的范围内的所有实施例。
部件列表
电弧故障电流断续器(AFCI)10        完整周期确定步骤62
微处理器12                        第一计算步骤64
串联电弧检测程序14                第二计算步骤66
负载16                            算法选择步骤68
中性导线18                        第一决策节点70
导线20                            第一算法72
支路电路22                        第二决策节点74
可分离触头24                      第二算法76
跳闸机构26                        第三决策节点78
过电流装置28                      第三算法80
双金属器件30                      第四决策节点82
磁驱动衔铁32                      第四算法84
并联电弧检测器32                  周期计数重设步骤90
滤波电路34         特征与范围比较的步骤92
高通滤波器36       设定“pass”步骤94
低通滤波器38
放大器40
第一DC补偿42
第二DC补偿44
高通信号46
低通信号48
模拟-数字转换器50
样本52
输出信号54
取样步骤60

Claims (9)

1.一种用于中断导线(20)上的电流的电路断续器(10)，包括：
与所述导线进行电通信的可分离触头(24)；
当被激活时选择性地断开所述可分离触头的跳闸机构(26)；
与所述导线串联连接的双金属器件(30)；
与所述跳闸机构进行电通信的微处理器(12)；
存在于所述微处理器中的串联电弧检测程序(14)，所述串联电弧检测程序包括多个串联故障检测算法(72，76，80，84)；
配置成从所述双金属器件向所述串联电弧检测程序提供低通信号(48)的低通滤波电路(38)，所述程序配置成基于所述低通信号从所述多个算法中选择特定算法；以及
配置成从所述双金属器件向所述串联电弧检测程序提供高通信号(46)的高通滤波电路(36)，所述程序配置成计算来自所述高通信号的多个统计学特征，并且配置成基于所述多个统计学特征与所述特定算法的比较发送输出信号(54)以激活所述跳闸机构。
2.如权利要求1的电路断续器，其中所述跳闸机构配置成一旦在所述双金属器件上施加了过电流就激活。
3.如权利要求2的电路断续器，其中所述跳闸机构配置成一旦在所述双金属器件上施加了短路就激活。
4.如权利要求3的电路断续器，还包括配置成一检测到所述导线上的并联电弧就激活所述跳闸机构的并联电弧检测器(32)。
5.如权利要求1的电路断续器，还包括配置成一检测到导线上的并联电弧就激活所述跳闸机构的并联电弧检测器(32)。
6.如权利要求1的电路断续器，还包括用于从所述高通滤波器和低通滤波器采样所述低通信号和高通信号的模拟-数字转换器(50)。
7.如权利要求1的电路断续器，其中所述程序配置成从所述低通信号计算所述多个统计学特征，并且配置成基于所述多个统计学特征与所述特定算法的比较发送所述输出信号以激活所述跳闸机构。
8.如权利要求1的电路断续器，其中所述低通滤波电路还包括DC补偿(44)。
9.如权利要求1的电路断续器，其中所述高通滤波电路还包括放大器(40)和DC补偿(42)。
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JP5073472B2 (ja) 2012-11-14
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KR20080063146A (ko) 2008-07-03
TW200841370A (en) 2008-10-16
AU2007240240A1 (en) 2008-07-17
AU2007240240B8 (en) 2011-08-04
US7826184B2 (en) 2010-11-02
US7463465B2 (en) 2008-12-09
MX2007015459A (es) 2009-02-20
US20080158744A1 (en) 2008-07-03
US20090059449A1 (en) 2009-03-05
CA2614398A1 (en) 2008-06-28
CN101325137A (zh) 2008-12-17
FR2912547A1 (fr) 2008-08-15
FR2912547B1 (fr) 2011-08-26
JP2008166277A (ja) 2008-07-17
AU2007240240B2 (en) 2011-07-21

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