| 根据基尔霍夫电流定律，可测得漏电电流的大小 |
| 添加时间：2019/7/11 16:04:51 浏览次数： |
| 剩余电流探测器终端探测原理。剩余电流探测器主要是利用剩余电流互感器原理进行探测。3根相线和1根中性线穿过剩余电流互感器。 The principle of residual current detector terminal detection. Residual current detector mainly uses the principle of residual current transformer to detect. Three phase lines and one neutral line pass through the residual current transformer. 正常工作时，电流相量和为零，互感器铁芯中不会产生磁通，二次侧也就不会产生有感电流；设备漏电时，电流i相量和不为零，此时铁芯中产生磁通，互感器二次侧产生有感电流。有感电流的大小和互感器一次侧电流相量和不为零的电流呈正比关系，根据基尔霍夫电流定律，可测得漏电电流的大小。 In normal operation, the current phasor and zero, transformer core will not produce magnetic flux, secondary side will not produce inductive current; when equipment leakage, current I phasor and not zero, then magnetic flux in the core, transformer secondary side will produce inductive current. The magnitude of inductance current is proportional to the primary side current phasor and non-zero current of transformer. According to Kirchhoff's current law, the magnitude of leakage current can be measured. |
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