KVAR RATING CALCULATOR,CAPACITOR BANK SIZE CALCULATION

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  Determination of Required Capacitor Rating by measurement 3 Methods are used. 1. Measurement with current and power factor 2.Measurement with recording of Active and Reactive power. 3.Measurement by Reading Meters . 1 . Measurement with Current and power factor The active power P is calculate from the measured voltage V ,apparent current Is and Power Factor P=√3*Voltage*apparent Current*cosψ *10^-3 If the desired power factor cosψ has been specified, the capacitor power rating can be calculate from the following formula: Qc = P. (tan ψactual - tanψ desired) Let's See the Example Measured Apparent Current Is : 248 Amps Power Factor cos ψ1 = 0.86 Desired Cos ψ2 = 0.92 Voltage V :397 V p=√3 * 397 * 248 * 0.86 * 103 P = 146.6 KW Qc= P. (tanψ actual - tanψ desired) = 146.6(0.59 - 0.42) = 24.9 KVAR
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LS-1008 LEAD SETTING STANDARD NOMINAL VALUE AND ACCURACY OR TOLERANCE AS PER API

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All the values are inch 

GROOVE DISTANCE #1 - #2

Nominal Value 

      0.503900

REMAINING GROOVES

Nominal Value 

+1.007800

+2.015600

+3.023300

+4.031100


ACCURACY OR TOLERANCE

The Accuracy or tolerance of the groove distance between 1 and 2 are given below.

Groove distance #1 - #2     +0.000100"/-0.000100


The Accuracy or tolerance of the remaining groove are given below

+0.000200/-0.000200


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