OPERATOR’S!MANUAL!!
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GLOSSARY
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This is the voltage of a power source when it has no load applied to it. It can also be called
“nominal voltage” as the voltage expressed is usually a guideline voltage.
This is the voltage of a power source when a load has been applied to it. As a load is applied to the
power source, the resistance of the line is easier to examine. When a voltage-measuring device
such as a multimeter is used during operation of the machine, you can clearly see that the voltage
drops as soon as a load is applied and rises back when the load is taken off.
Pigtails are plug ends with unfinished bare wire on one end used for hooking up to panels. Pigtails
are used when the source power is unknown, when connecting to the power grid of an unfinished
building that has no power receptacles, and when running certain generators. Many pigtails are
available or can be made up by an electrician.
Rear pivoting assembly.
Vinyl composition tile.
A variable frequency drive (VFD) is a system for controlling the rotational speed of an alternating
current electric motor by controlling the frequency of the electrical power supplied to the motor. A
variable frequency drive is a specific type of adjustable-speed drive. Variable frequency drives are
also known as adjustable-frequency drives (AFD), variable-speed drives (VSD), AC drives,
microdrives, or inverter drives. Because the voltage is varied along with frequency, these are
sometimes also called variable voltage variable frequency (VVVF) drives.
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