Electro-Voice 1252 - Manual (Page 109)

Electro Industries/GaugeTech
Doc # E107706 V1.25
7-7
Full-Load Loss Watts (kW) = 1-Phase Kw Load Loss = ______________
Full-Load Loss VA (kVA) = (%Impedance) * (1-Phase kVA Self-Cooled Rating) / 100
= (______________) * (________________) / 100
= _______________ kVA
Full-Load Loss VAR (kVAR) = SQRT((Full-Load Loss kVA) 2 - (Full-Load Loss kW) 2 )
= SQRT((_________________) 2 - (________________) 2 )
= SQRT((__________________) - (_________________))
= SQRT (_________________)
= _________________
Q Normalize Losses to Meter Base
Enter Value at Transformer Base for each quantity from calculations above. Enter Meter/Trf Factor
value from Base Conversion Factor calculations above. Calculate M/T Factor with Exponent by raising
the M/T Factor to the power indicated in the “Exp” (or Exponent) column.
Calculate the “Value at Meter Base” by multiplying the (M/T Factor w/ Exp) times the (Value at Trf
Base).
Q Loss Watts Percentage Values
Meter Base kVA = 600 * (PT Multiplier) * (CT Multiplier) / 1000
= 600 * (____________) * (___________) / 1000
= ________________
Quantity
No-Load Loss kW
Value at Trf
Base
M/T
Factor
M/T Factor
Value
V
V
I
I
Exp
M/T Factor w/
Exp
Value at
Meter Base
No-Load Loss kVAR
Load Loss kW
Load Loss kVAR
∧2
∧4
∧2
∧2