List of Equations

ACE Equation 14.4.5

(NIA − NIS) − 10B (FA − FS) – IME

NIA – Net Actual Interchange 

NIS – Net Scheduled Interchange

10 – Factor to make (FA − FS) bigger

B  – Frequency bias (each BA responds to adverse conditions a little bit, to help out)

FA – Actual Frequency

FS – Scheduled FrequencyIME – Meter Error (nobody cares, not used in operations)

AVR Excitation 9.2.1.1

NI=R′⏀ 

N = Number of turns  

I = Current 

R = Reluctance  

⏀ = Magnetic flux

Capacitance Equations 4.5.8

Current Equation, ohm’s law 4.3.3

Enthalpy 7.2.2

H = U + pV

H = Enthalpy

U = Internal Energy

p = Pressure

V = Volume

Faraday’s Induction Equations 6.4.2 ,  9.2.1

EMF = electromotive force

N = number of turns

Delta phi = change in flux (numerator)

Delta time = change in time (denominator)

Frequency Equation 6.5.6

Inductance Equations 4.5.5 

Internal Energy 7.2.3

U = cV * T

U = Internal Energy

cV = Specific Heat

T = temperature

Ohm’s Law, circle thing 4.3.1

Ohms Law, equations 4.3.3

Ohm’s Law, for AC 4.3.5

Power Equations 5.3.4

P = I * E

P = E² / R

P = I² * R

Power Transfer, real power 11.4.2

Power Transfer, reactive power  11.4.2

Reactance Equations 4.6.1

Resistor Equations 4.2.4

RTotal = R1 + R2 + R3 = 3Ω + 4Ω  + 5Ω  = 12Ω

Transformer Equations, Delta and Wye 10.4.5

Transformer Equations, current 10.3.4

I1*N1 = I2*N2

Transformer Equations, voltage 10.3.3

Voltage Equation, terminal 6.5.3

𝑉terminal = 𝑒𝑚𝑓 − 𝐼 * 𝑟

emf = electromotive force

I = armature current

r = armature internal resistance

Voltage Equation, terminal 6.5.3

𝑉terminal = 𝑉induced + 𝑉armature