Strana 41 z 41
Vámi hledaný text obsahuje tato stránku dokumentu který není autorem určen k veřejnému šíření.
Poznámky redaktora
This term applies both Drives and DC
Drives. Siemens trademark Siemens AG.40
Variable Speed Drive electronic drive device used control the speed an
electric motor.
Vector Control technique employed some variable frequency drives that
involves calculations motor current vectors and precise
control motor flux provide excellent speed and torque
control.The symbol for volt “V.
Watt The basic unit electric power.
Voltmeter meter designed measure voltage.
Voltage force that, when applied conductor, causes
current flow.
Volt The basic unit voltage.The symbol for watt “W.
”
Voltage Also called difference potential, electromotive force, EMF
.
Volts per Hertz (V/Hz) Describes the operation many variable frequency drives that
Operation control the speed motor varying the frequency of
the voltage applied the motor while maintaining constant
voltage frequency ratio. Other names
mentioned may trademarks registered trademarks their respective companies. All Rights Reserved.
Primary Secondary
L1
L2
L3
L1
L2
L3
Wye-Wye (Y-Y)Transformer Configuration
N
N
© Siemens Industry, Inc.
Wye connection arrangement used for the primary and/or
secondary three-phase transformer.
.
”
Word Usually one more bytes used represent instructions or
data digital equipment. Voltage symbolized “E” “V” and is
measured volts