What is the accuracy of the RM17TU00 adjustment under voltage setting?
Goals and Symptoms
If I set the voltage to 208V nominal, then I set the under voltage trip point at -5%, that's = 198V. What it the accuracy of the 198V under voltage setting? Does the relay trip anywhere in between 178V-218V?? (+-10% of 198V ???)
Facts and Changes
accuracy of dropout when set for a particular percentage.
RM17TU00
Causes and Fixes
The accuracy of a voltage setting is given in catalogue by the "setting accuracy" characteristic. It is the accuracy of the potentiometer position according to the marking on the front face.
Example:
Set the potentiometer at -10% (with Un= 208V => 187V), then the real voltage setting will be between 9% and 11% of Un(185V and 189V), +/-10% of 10.
Publié pour: Schneider Electric Belgium
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