how can you calculate the value of external resistance
inserted in a slipring industion motor? (eg. 110 kw / 990
rpm/50Hz/stator v-415/stator Amp-195/Rotor V-440/Rotor amps-
151.)

Answer Posted / gulzar ahmad naikoo

There is thumb Rule for percentage of cutting resistance.1st step full calculated resistance,2nd 50% of total,3rd,50% of 2nd,4rh 50% of 3rd, and so on.

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