Is there any rule of thumb or table that lists the size of a control voltage transformer for 120 volt motor starter coils from size 0 thru size 6, assuming that the starter coil is the only load on the transformer?
I need to learn how to test small shunt wound DC motors in the field. The nature of the test is to determine if a motor has failed without disassembling it. These motors are generally 3 HP or smaller and are either 180vdc or 90vdc. Is this possible to do with a typical ohm meter?
We would like to find information on aligning direct coupled motors and loads. It would be nice to find some good information in the public domain, if possible. Documents in pdf format would be ideal. Any help in steering us in the right direction would be appreciated. Thanks.
