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Y-△ step-down starting circuit 2 with arc flashover short circuit protection function 2
Source: InternetPublisher:张七岁 Keywords: Protection function short circuit protection starting circuit BSP Updated: 2020/08/13
(2) Y-△ step-down starting circuit 2 with anti-arc short-circuit protection function
. The circuit is shown in Figure 3-43. This circuit can prevent arcing short-circuit between contactor contacts (even if the motor has a certain
load) start up). In addition, when the time relay KT fails, the motor will not run under the star connection for a long time and cause
harm.
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