“Your time is limited, so don't waste it living someone else's life. Don't be trapped by dogma - which is living with the results of other people's thinking. Don't let the noise of other's opinions drown out your own inner voice. And most important, have the courage to follow your heart and intuition. They somehow already know what you truly want to become. Everything else is secondary.” Steve Jobs quoteste it living someone else's life. Don't be trapped by dogma - which is living with the results of other people's thinking. Don't let the noise of other's opinions drown out your own inner voice. And most important, have the courage to follow your heart and intuition. They somehow already know what you truly want to become. Everything else is secondary.” STEVE JOB

A.C motor


 There a lot of things we can do if we can control and manipulate the motor. Here is the most important formula when you come to play with the a.c motor.

VALUE
1-PHASE
3-PHASE
WATTS (W)
I X E X PF
I X E X 1.73 X PF
KILOWATTS (kW)
E X L X PF
1000
E X I X 1.73  X PF
1000
AMPERES (I)
kW X 1000
E X PF
kW X 1000
E X 1.73 X PF
KILOVOLT AMPERES (kVA)
I X E
1000
X E X 1.73
1000
FREQUENCY (Hertz or f)
Rotor Poles X RPM
120
Rotor Poles X RPM
120
RPM (n)
Hertz X 120
Rotor Poles
Hertz X 120
Rotor Poles
NUMBER OF ROTOR POLES (P)
Hertz X 120
RPM
Hertz X 120
RPM
POWER FACTOR (PF)
Actual Watts
I X E
Actual Watts
I X 1.73 X E
HORSEPOWER (HP)
I v E X PF
746 X  EFF
I X E X 1.73 X PF
746 X EFF
AMPERES (when kW is known)
kW X 1000
E X PF
kW X 1000
E X 1.73 X PF
AMPERES (when kVA is known)
kVA X 1000
E
kVA X 1000
E X 1.73

 
I
=
current in amperes
E
=
voltage in volts
W
=
watts
kW
=
power in kilowatts
kVA
=
apparent power in kilo-volt-amperes
HP
=
output power in horsepower
RPM (n)
=
motor speed in revolutions per minute (RPM)
ns
=
synchronous speed in revolutions per minute (RPM)
Rotor Poles (P)
=
number of poles
Hertz (f)
=
frequency in cycles per second (CPS)
T
=
torque in pound-feet
EFF
=
efficiency as a decimal
PF
=
power factor as a decimal
HP
=
horsepower

 My next tutorial will show you how to connect inverter to 3 phase a.c motor


































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