Electro-Voice 250, 1252 Reactive Power VAR Total, Apparent Power VA Total, Power Factor PF

Reactive Power (VAR) Total:

For Wye:

VART = VARA + VARB + VARC

For Delta:

				⎡	n			⎤2
				⎢	∑vAB(t )		• iA(t ) ⎥
VART (VRMS AB	• IRMS A )	2	−	⎢ t=1		n		⎥
				⎢				⎥
				⎢				⎥
				⎣				⎦
	+
				⎡	n		• i	⎤2
				⎢	∑v	BC (t )
							C (t ) ⎥
(VRMSBC	• IRMSC )	2	−	⎢ t =1		n		⎥
				⎢				⎥
				⎢				⎥
				⎣				⎦

Apparent Power (VA) Total:

For Wye:

VAT = VAA + VAB + VAC

For Delta:

VAT = WT2 + VART2

Power Factor (PF):

For Wye: x = A, B, C, T

For Delta: x = T

PFx = Wattx

VAx

e Electro Industries/GaugeTech Doc # E107706 V1.25 2-8