Transformers provide stepped down
voltages to machine tool control devices
enabling control circuits to be isolated from
all power and lighting circuits. This allows
the use of grounded or ungrounded circuits
that are independent of the power or lighting
grounds; greater safety is afforded the
operator. The control transformer line is
particularly adaptable on applications where
compact construction is demanded.
Single-Phase Transformers How to Select Single-Phase Units
Determine the primary (source) voltage
(the voltage presently available).
Determine the secondary (load) voltage
(the voltage needed at the load).
Determine the load VA:
Multiply load Volts x load Amps to get the VA rating.
Select a transformer rating equal to or
greater than the load VA.
