Yeh calculator aapko aapke system ka current Power Factor check karne, aur usko target level (jaise 0.99) tak improve karne ke liye kitne kVAR ka capacitor bank chahiye, yeh nikalne mein madad karta hai. Industrial plants mein motors aur transformers inductive load hote hain jo PF ko down karte hain, jisse electricity bill mein penalty lagti hai. Is tool se aap exact capacitor size calculate karke penalty se bach sakte hain aur energy losses kam kar sakte hain.

2. Input & Result Fields Explanation
   Inputs:

Select Standard (IEC/IS/NEC): Aap kis country ya standard ke hisaab se calculation kar rahe hain, woh select karein. IS (Indian Standard) India ke liye best hai.

System Phase: 1-Phase (Single phase) ya 3-Phase (Three phase) system select karein. Yeh current (Amps) calculation ke liye zaroori hai.

System Voltage (V): Aapke panel ya motor ka voltage (jaise 3-Phase mein 415V, aur 1-Phase mein 230V).

Load Unit & Value: Aapka load kW mein hai ya HP (Horsepower) mein, dropdown se chunein aur value daalein.

Existing Power Factor: Abhi panel ka power factor kitna chal raha hai (example: 0.75 ya 0.80). Electricity bill ya meter se dekh kar daalein. Range 0.1 se 0.99 ke beech honi chahiye.

Target Power Factor: Aap kitna PF maintain karna chahte hain. Ideal target 0.99 ya 1.0 hota hai penalty avoid karne ke liye.

Results:

Required Capacitor Bank (kVAR): Exact capacitor ki rating jo aapko system mein lagani hogi.

Existing Current (Amps): Bina capacitor lagaye system kitna current le raha hai.

New Current (Amps): Capacitor lagane ke baad current kitna kam ho jayega. (Cable ki life badhegi).

Current Reduction: Kitne Amps ka fayda hua.

Formulas Used (Text Format)

KW Conversion (from HP): kW = HP * 0.746
(Ek Horsepower mein lagbhag 0.746 kilo-Watts hote hain)

Power Factor Angle (Theta):
Theta = acos(PF)
(Inverse cosine function use karke power factor se electrical angle nikalte hain)

Required kVAR (Capacitor Bank):
kVAR = kW * [ tan(Theta1) – tan(Theta2) ]
(Active power ko purane aur naye phase angles ke tangent difference se multiply karte hain)

System Current (I) in 3-Phase:
I = (kW * 1000) / (1.732 * Voltage * PF)
(3-Phase system ka load current nikalne ka standard formula. 1.732 yahan square root of 3 hai)

System Current (I) in 1-Phase:
I = (kW * 1000) / (Voltage * PF)

Real-World Example

Maan lijiye aapke plant mein ek 50 kW ki 3-phase motor hai.
Uska voltage 415 V hai.
Abhi uska Power factor (Existing PF) 0.80 chal raha hai.
Aapko penalty se bachne ke liye PF ko 0.99 (Target PF) karna hai.

Step 1: Purana angle nikalein. acos(0.80) = 36.87 degrees. Iska tan nikalein: tan(36.87) = 0.75

Step 2: Naya angle nikalein. acos(0.99) = 8.11 degrees. Iska tan nikalein: tan(8.11) = 0.142

Step 3: Formula lagayein: kVAR = 50 * (0.75 – 0.142)

Step 4: kVAR = 50 * 0.608 = 30.4 kVAR.

Result: Aapko lagbhag 30 kVAR (nearest standard size) ka capacitor bank lagana padega.

Chart / Reference Table: Multiplying Factor Table

Market mein engineer shortcut tarike se kVAR nikalne ke liye ek “Multiplying Factor” table ka use karte hain. kVAR = kW * Multiplying Factor.

Existing PF	Target PF 0.95	Target PF 0.98	Target PF 0.99	Target PF 1.00
0.60	1.005	1.130	1.191	1.333
0.60	1.005	1.130	1.191	1.334
0.60	1.005	1.130	1.191	1.335
0.60	1.005	1.130	1.191	1.336
0.60	1.005	1.130	1.191	1.337

Q1: Power Factor kya hota hai?
Power Factor ek ratio hai (Active Power / Apparent Power). Asaan bhasha mein, kitni bijli actual kaam (kW) mein convert ho rahi hai aur kitni total bijli grid se aayi (kVA). Iski value 0 se 1 ke beech hoti hai.

Q2: Capacitor bank lagane se kya fayda hota hai?
Inductive loads (motors, transformers) “reactive power” (kVAR) consume karte hain jo electricity system ko overload karta hai. Capacitor lagane se woh reactive power locally produce hoti hai, grid par load kam hota hai, current draw kam hota hai, aur electricity bill mein penalty nahi lagti.

Q3: Kya mujhe hamesha PF 1.0 (Unity) rakhna chahiye?
Hamesha zaroori nahi. PF 0.99 rakhna zyada safe maana jata hai kyunki agar aap exactly 1.0 target karenge aur load kam hua, toh system “leading” power factor mein jaa sakta hai, jisse overvoltage ki problem ho sakti hai.

Q4: Main apne ghar ka power factor kaise theek karu?
Ghar (residential loads) mein mostly light, fan, aur TV hote hain jahan electricity company PF par penalty charge nahi karti. PF correction mainly factories aur heavy industries (commercial connections) ke liye zaroori hota hai jahan kVAh billing hoti hai.