Required Capacitor Banks Sizing Calculation

CAPACIT ITOR BANKSSIZING NG CALCULATIO ION FOR SKPPLSITE CONSTRUCTIO ION POWER 1

For For Transformer Transformer - 0 1 ( Near Adit-1) Adit-1) 125 0 KVA

Calculation for required Capacitor Bank  Connected Load Running load PF without Capacitors Desired PF will be

 

P cosθ1

 

cosθ2

Formula for for KVAR calculati alculation: on: Required capacitive KVAR

θ1 θ2

   

1150 kW 90 906.5 6.54 kW 0.4 0.99 P(tanθ₁ - tanθ₂) 1947.969131

66.45551 8.11372

KVAR

tanθ₁  tanθ₂

 

2.291288 0.142492

Required KVARobtained obtained from multi ultiplying plyingfactor

Required KVAR

KW

906.54

 Tota  Totall Multiplying  Tota  Totall No. No. of ca capac pacito itor Required Factor banks req. KVAR 2.1487956

2000

500KVAR - 2 Nos. 300KVAR - 2 Nos. 200KVAR - 2 Nos.

For For Transformer Transformer no-02 (Adit-2) 600 KVA KVA

Calculation for required Capacitor Bank  Connected Load Running Connecting load P cosθ1 PF without Capacitors Desired PF will be

cosθ2

   

Formula for for KVAR calculati alculation: on: Requir Required ed capacit capacitive ive KVAR

θ1 θ2

   

580 kW 520 kW 52 0.4 0.99

P(tanθ₁ - tanθ₂) 1117.373694 66.45551 8.11372

tanθ₁  tanθ₂

Required KVARobtained obtained from multi ultiplying plyingfactor Required KVAR

KW

 Tota  Totall Multiplying  Tota  Totall No. No. of ca capac pacito itor Required Factor banks req. KVAR

520

2.1487956

1100

KVAR

300KVAR - 2 Nos. 250 KVAR- 2 Nos.

 

2.291288 0.142492