Increase external overload protection is to prevent motor burned effective means, such as thermal relay protection.
增加外部过载保护是防止电机烧毁的有效手段，如热继电器保护。
The thermal overload relay is a kind of low-voltage protection apparatuses which is widely used in the field of motor protection.
热过载继电器是一种重要的低压保护类电器，广泛应用于电动机的保护领域。
IC type overload protection circuit has gradually replaced thermal relay overload protection mode.
煤电钻采用热继电器进行过载保护方式已逐渐被IC型过载保护电路取代。
IC type overload protection circuit has gradually replaced thermal relay overload protection mode.
煤电钻采用热继电器进行过载保护方式已逐渐被IC型过载保护电路取代。
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