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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GENERAL SPECIFICATION OF 202 N DIFFERENTIAL PRESSURE RECORDER SPECIFICATION AND ACCURACY

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 General Description 

The ITT Barton Model 202N is a 12" circular chart recorder, capable of recording flow, temperature, and static pressure readings, that has been designed to comply with the National Association of Corrosion Engineers (NACE) standard MR-01-75 (1980 revision) Material Requirements for Resistance to Sulfide Stress Cracking for Oil Field Equipment.

The Model 202N has been specifically designed with softer ,less brittle material to resist the damaging effects of Hydrogen Sulfide, even with continued exposure to high concentration in both the process and externally in the immediate environment.

Component Description

  1. DIFFERENTIAL PRESSURE UNIT (DPU) :- a modified version of the Model 199 DPU (a dual bellows assembly enclosed within pressure housings) provides the recorder with differential pressure information. This information is transferred to the recorder through a Monel torque tube.
  2. STATIC PRESSURE ELEMENT :- a single weld K-Monel element that provides static pressure information to the recorder . This assembly element is enclosed within the recorder housing.
  3. TEMPERATURE ELEMENT:- an optical stainless steel temperature element that provides the recorder with temperature information
  4. RECORDER MECHANISM:- an assembly consisting of all pen elements, linkage ,and assembly adjustments that convert all mechanical inputs from sensing elements to proper recorder pen movement.
  5. CHART DRIVE :- an assembly that provides proper movement of the recorder chart.



Barton 202N Recorder Mechanism
The accuracy or General Specification of Barton 202N & Chart Recorder Mechanism / Components



Performance Range

            
Accuracy of Permissible error of Baron 202N
The accuracy or General Specification of Barton 202N



The specification of the recorder case is it is made of Die-cast aluminum: black epoxy resin paint ; waterproof; waterproof; Weather resistant.

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