据绿润百科网站「青栀如初」消息,近日,请问开路和断路什么区别?开路 短路 断路「分享」引发热议,开路 短路 断路同样引起许多争议,对此众网友各抒己见。但到底是怎么回事呢?绿润百科为您解答。

开路和断路什么 区别

开路是指 电路中两点间无电流通过或阻抗值(或电阻值)非常大的导体连接时的电路状态。

断路是指当电路没有闭合开关,或者导线没有连接好,或用电器烧坏或没安装好(如把电压表串联在电路中)时,即整个电路在某处断开。

当电路呈断路状态时,电路总共有三种情况:通路、断路(开路)、短路。当电路断路时,I=0所以断路部分两端电压即U=E,故其分担全部电压。当电路中有电压表时,由于电压表电阻很大,在物理中,视其为断路。当电路中两点间的支路开路时,该两点间的电位差称“开路电压”,可用电压表测量。通常又叫断路,是指因为电路中某一处因断开而使电阻无穷大,电流无法正常通过,导致电路中的电流为零。

开路 短路 断路

开路、短路和断路是电路中常见的故障,对电路的正常工作产生影响,因此我们需要了解它们的定义和特点,以便在遇到故障时快速修复。

开路是指电路中某一部分的导线或元件断开,电路中断,导致电流无法流通,一般表现为电路失灵或电器不工作。开路的原因多种多样,例如线路脱落或损伤、继电器的接触不好等。当电路在使用过程中出现开路,应及时排查出故障点并修复电路。

短路是指电路中的两个或多个导线之间短路,电流突然增加,超过正常容量,造成电线或元器件发热,引发火灾等危险。短路的原因有导线绝缘老化、线路接头不良、元器件损坏等。如果短路发生在强电设备上,应及时切断电源并排查解决故障。

断路是指电路中未断线、未短路情况下,部分或者全部出现电流无法流通的情况,例如电机失速或者从原地没有动的况。断路的原因是电阻过大、连接不良或关闭不彻底等。在排除其他故障,仍然无法解决电路问题时,需要考虑到是否有断路的情况。

电路中的故障可能对日常生活、生产带来困扰,所以对于开路、短路和断路的预防、排查、修复非常重要。在使用电器时应注意安全使用,如遇到电路问题应及时排查信息,确保电路安全稳定地工作。

【英文介绍/For English】:

Open circuit refers to the state of the circuit when no current flows between two points in the circuit or when a conductor with a very large impedance value (or resistance value) is connected.

Open circuit refers to when the circuit does not close the switch, or the wire is not connected well, or the electrical appliance is burnt out or not installed properly (such as connecting a voltmeter in series in the circuit), that is, the entire circuit is disconnected somewhere.

When the circuit is in an open circuit state, there are three situations in the circuit: open circuit, open circuit (open circuit), and short circuit. When the circuit is open, I=0, so the voltage at both ends of the open circuit is U=E, so it shares all the voltage. When there is a voltmeter in the circuit, due to the large resistance of the voltmeter, it is regarded as an open circuit in physics. When the branch between two points in the circuit is open, the potential difference between the two points is called "open circuit voltage", which can be measured with a voltmeter. It is usually called an open circuit, which means that because a certain part of the circuit is disconnected, the resistance is infinite, and the current cannot pass normally, resulting in zero current in the circuit.