Delta functions

The delta functions use the line voltages and line currents in a delta grid to calculate the different power values.

Arguments

'u12', 'u13', 'u23'	Connection voltage (same as the phase voltages)
'i1', 'i2', 'i3'	Connection currents
'Frequency'	Fundamental frequency

These functions are typically applied to a delta grid, but they can be applied to any grid in which the line voltages and currents are measurable.

DeltaCollectiveUeff('u12','u13','u23','Frequency'=50)

Calculates the collective effective voltage in a delta grid:

U_xy,eff : the effective value of the line voltage U_xy

DeltaCollectiveIeff('i1','i2','i3','Frequency'=50)

Calculates the collective effective current in a delta grid:

I_x,eff : the effective value of the line current i_x

DeltaActiveP('u13','u23','i1','i2','Frequency'=50)

Calculates the active power in a delta grid:

N : the number of samples in a period

u_xy : the voltage between the connection x and y (u₁₃ = -u₃₁)

i_x : the current in line x

DeltaApparentP('u12','u13','u23','i1','i2','i3','Frequency'=50)

Calculates the apparent power in a delta grid:

U_eff : the collective effective voltage

I_eff : the collective effective current

DeltaReactiveP('u12','u13','u23','i1','i2','i3','Frequency'=50)

Calculates the reactive power in a delta grid:

S : apparent power

P : active power

DeltaReactivePS('u13','u23','i1','i2','Frequency'=50)

Calculates the signed reactive power Q_S in the delta grid.

DeltaActivePFactor('u12','u13','u23','i1','i2','i3','Frequency'=50)

Calculates the active power factor in a delta grid:

S : apparent power

P : active power

DeltaReactivePFactor('u12','u13','u23','i1','i2','i3','Frequency'=50)

Calculates the reactive power factor in a delta grid:

Q : reactive power

P : active power

DeltaReactivePFactorS('u13','u23','i1','i2','Frequency'=50)

Calculates the signed reactive power factor in a delta grid:

Q_S: signed reactive power

P : active power