⚙ CircuitSecrets
Power System Calculator Dashboard
Complete engineering suite for power triangles, fault analysis, load flow, per-unit systems, and energy cost calculations.
Calculator 01
Real, Reactive & Apparent Power
S = √(P²+Q²) | P = S×cosφ | Q = S×sinφ | PF = P/S
Calculation Results
P (kW)
—
Q (kVAR)
—
S (kVA)
—
PF
—
Current (A)
—
Calculator 02
Power Factor Correction
Qc = P × (tanφ1 − tanφ2) [kVAR] | C = Qc / (2πf × V²) [μF]
Calculation Results
Qc (kVAR)
—
Cap. (μF)
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Current Reduction
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kVA Reduction
—
Calculator 03
Ohm's Law & DC Power
V = IR | P = VI = I²R = V²/R | Any two known → solve rest
Calculation Results
Voltage (V)
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Current (A)
—
Resistance (Ω)
—
Power (W)
—
Calculator 04
3-Phase Power Calculator
P = √3×VL×IL×cosφ | VL = √3×Vph
Calculation Results
Active P (kW)
—
Reactive Q (kVAR)
—
Apparent S (kVA)
—
Phase Voltage
—
Phase Current
—
Phase Angle φ
—
Power/Phase (kW)
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Connection
—
Calculator 05
Fault / Short Circuit Current
Isc = V / (√3 × Z) [3Φ] | Isc = V / Z [1Φ] | MVAsc = kV² / Z(pu)
Calculation Results
Fault Current
—
Fault kA
—
Fault MVA
—
System Z (Ω)
—
Calculator 06
Per Unit (PU) System
Z_pu = Z_actual / Z_base | Z_base = V_base² / MVA_base
Calculation Results
Z_base (Ω)
—
I_base (A)
—
Z_pu (from Zact)
—
Z_new_pu
—
Calculator 07
Load Flow (Simple Radial)
Vr = Vs − I×(R·cosφ + X·sinφ) | P_loss = I²R | Q_loss = I²X
Calculation Results
Receiving Voltage
—
Voltage Drop
—
P Loss (kW)
—
Q Loss (kVAR)
—
Calculator 08
Voltage Unbalance
NEMA VUF% = (Max deviation from avg) / Avg × 100
Calculation Results
Avg Voltage
—
NEMA VUF%
—
Max Deviation
—
Current Unbal%
—
Calculator 09
Energy Consumption & Cost
Energy = P × t [kWh] | Bill = Energy × Tariff + Demand × Demand_rate
Calculation Results
Daily kWh
—
Monthly kWh
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Energy Bill
—
Demand Charge
—
Total Monthly Bill
—
Max Demand (kVA)
—
Cost/kWh Effective
—
Annual Bill
—
Calculator 10
Power System All-in-One Summary
Full system snapshot: P, Q, S → PF → Correction → Fault current → Energy bill
Calculation Results
Load Current (A)
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Apparent S (kVA)
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Reactive Q (kVAR)
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PF Correction (kVAR)
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After PFC S (kVA)
—
Current After PFC
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Fault Current (kA)
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Fault MVA
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Daily kWh
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Monthly Bill
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Trafo Loading %
—
Recommendation
—
Calculator 11
Transformer Sizing & FLC
I_full_load = kVA × 1000 / (√3 × V) [3Φ]
Calculation Results
Primary FLC (A)
—
Secondary FLC (A)
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Primary Breaker (A)
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Secondary Breaker (A)
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Data Management
Saved Setups (Update / Edit)
Click "Save Setup" inside any calculator to store its values. Click "Update" below to automatically scroll to that calculator and load the values back.
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