Pacific Power Source UPC-3 - K Factors Display and Calculation

SECTION 8 CALIBRATION
110
8.2.1 K FACTORS DISPLAY
The correction factors (kFactors) created during EXTERNALLY REFERENCED CALIBRATION may
be displayed or modified directly, from the kFactors display screen. Activate the CALIBRATION
Menu (fn, 4), press 3 and the kFactor display appears as shown below.
(FORM 3 display shown).
Kin A:1.0000 B:1.0000 C:1.0000
Kex A:1.0000 B:1.0000 C:1.0000
Ki A:1.0000 B:1.0000 C:1.0000
Ko A:1.0000 B:1.0000 C:1.0000
Kin - are the kFactors for internal voltage sensing of phase A, B and C.
Kex - are the kFactors for external voltage sensing of phase A, B and C.
Ki - are the kFactors for current sensing of phase A, B and C.
Ko - are the oscillator gain kFactors.
To manually calculate and enter a particular kFactor,
1. observe the UPC meter display value
2. use the following equation to calculate the new kFactor:
test equipment value
new kFactor =
old kFactor *
(
UPC meter display value
)
You can simplify this calculation by first setting the kFactor to 1.000. The new kFactor is then the ratio of
the external metered value to the UPC meter display value.