Its interference way covers mainly electric magnetic radiation, conduction and induction coupling.

变频器的干扰途径主要有电磁辐射、导、应耦合。

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General temperature measurement only considers the effect of convection and conduction on the thermocouple measurement and not consider the effect of thermal radiation.

一般温度的测量，只考虑对流换热对热电偶测温的影响，未考虑热辐射对热电偶测温的影响。

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But because of the temperature environment (radiation, heat conduction and convection) and the internal heat of the motor is not consistent, so we can not effectively protect the motor.

但是由于其周围温度环境(辐射、热传导及对流状况等)与电机内部的发热规律不一致，所以不能对电动机进行有效的保护。

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