About the Step-Up Transformer
The step-up transformer increases Factory Supply Power to 460VAC input power to the Kval
Machine (s).
Note: Refer to the machine electrical print for wiring information.
Note: Refer to OEM documentation for full maintenance or repair instructions.
Prior to performing any maintenance, repairs, cleaning you must discon-
nect, tag out, or lock out . This procedure should be done in accordance
with applicable state and/or federal code requirements. All maintenance
and repairs to electrical circuitry should only be performed by a qualified
electrician.
Transformer Assembly
The Transformer Assembly is a stand-alone construction that interfaces factory power to the
machine line. The assembly includes an electrical panel and a high voltage transformer that is
wired to increase the voltage to the machine line.
Step-Up Transformer
Electrical Panel
Power Cables to
Machine Line
Inside the Electrical Panel
The figure below shows the components and wiring of the electrical panel.
Main Panel, High Frequency
Breakers: To the Machine Line
Note: The quantity of breakers will
vary corresponding to the number
of Electrical Panels supplied with
the machine line.
Main Breaker:
Factory input
power
Power to machine line
From Step-Up Transformer
Factory Power
to Transformer
Inside Transformer Enclosure
The figure below shows the wiring of the transformer.
Step-Up Transformer
Note: Size of the transformer
varies with the value of factory
input voltage
Note: Always refer to the
electrical print when wiring
or troubleshooting the trans-
former.
IN IN IN
OUT OUT OUT
Rear View of Panel
This rear view of the transformer assembly shows the power inputs and outputs.
Factory Power Input to
the Transformer
Power to Machine
from the Breakers.
Step-Up Power Out to
the Breakers.
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Kval 990-F4 Owner's manual
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