Equations Flashcards
1
Q
Capacitance
A
1/ 2 x 3.14 x f x c
2
Q
Inductance
A
2 x 3.14 x F x L
3
Q
Transformer formula
A
Np / Ns = Vp / Vs = Is / Ip
4
Q
Power factor
A
True power / apparent power
5
Q
Power - Anywhere
A
Power = volts x current
6
Q
Power series
A
Power = current ^2 x Resistance
7
Q
Power parallel
A
Power = voltage ^2 / resistance
8
Q
Star formula
A
VL = VPH x 3 squared
9
Q
Delta formula
A
IL = IPH x 3 squared
10
Q
Power triangle
A
KW = P.F x KVA
11
Q
Per unit slip
A
Ns-nr / Ns
12
Q
Percentage slip speed
A
Ns - Nr/ Ns x 100
13
Q
N (RPS)
A
F / P
14
Q
N (Rpm)
A
F x 60 / p
