Automated instruments use filters to resist interference wiring
Source: InternetPublisher:酷到被通缉 Keywords: Anti-interference wiring filters automated instruments Updated: 2020/12/31
Automated instruments use filter anti-interference wiring
. For frequency converters that have not been processed for high-order harmonics, they will radiate electromagnetic waves with extremely strong field strength and high amplitude during operation.
If the automated instrument is installed less than 200mm away from it, placed in In an unshielded box of the same layer, the meter may produce
additional errors. At this time, the ground terminal of the meter should be connected properly, and then the input line and power line of the meter should be filtered, as
shown in the figure.
In the figure, the capacitor C is selected as 0. lFtF, 250V; the inductor L is selected as 10mH, and the DC resistance is less than 5Q; the resistor R is selected as
100n, 1/2W.
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