N.B: Enter You Detail in White Background Cell Available Fault Current Calculation (Isc Calcu Does any GENERATOR Supplay Power To main Service Panel ?? Generator kW: Type of Supplay Voltage Line-Line (V L-L) Voltage Line-Neutral (V L-N) Enter Generator Subtransient (Z) Power Factor No of Generator in Parallel Total Generator kva: Secondary Current ( I L-L) Secondary Current ( I L-N) Maximum Generator Short Circuit Current( Line-Line) Maximum Generator Short Circuit Current( Line-Neutral) Do You Have any Motor Contributions Motor Contributions (Line-Line) Motor Contributions (Line-Neutral) Total Short Circuit Current:( ISC Gen)(L-L) Total Short Circuit Current:( ISC Gen)(L-N) Fault Current Calculation (TRANSFORMER To MAIN Available Utility or Primary KVA(Source).If You Don't Know than select"Unli ( Provide By Power supplay Company) Supply System Enter transformer KVA rating Secondary Voltage Line-Line ( V L-L) Secondary Voltage Line-Neutral ( V L-N) Enter transformer impedance (Zt) Transformer Calculations Secondary Voltage Line-Line ( V L-L) Transformer Secondary Full Current I (L-L) Transformer Secondary Full Current I (L-N) Source Impedance:(Zu) Total Impedance (Zu+Zt) Short Circuit Current at T.C Secondary( ISCa)(L-L) Short Circuit Current at T.C Secondary( ISCa)(L-N) Short Circuit Current (RMS symmeterical) At Secondary (Line) Main MCCB Line Terminel Maximum Secondary Protection per NEC 450.3(B) Recommended Secondary Breaker Rating Length (L) Type of Conductor (3-Single Conductor cable) or (3 conductor cable) Type of RaceWay
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(6) Short Circuit Current Calculation at Various Point of Electrical Circuits(Isc).
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N.B: Enter You Detail in White Background Cell
Available Fault Current Calculation (Isc Calculation)Does any GENERATOR Supplay Power To main Service Panel ??
Generator kW:Type of SupplayVoltage Line-Line (V L-L)Voltage Line-Neutral (V L-N)Enter Generator Subtransient (Z)Power FactorNo of Generator in ParallelTotal Generator kva:Secondary Current ( I L-L)Secondary Current ( I L-N)Maximum Generator Short Circuit Current( Line-Line)Maximum Generator Short Circuit Current( Line-Neutral)Do You Have any Motor ContributionsMotor Contributions (Line-Line)
Motor Contributions (Line-Neutral)
Total Short Circuit Current:( ISC Gen)(L-L)Total Short Circuit Current:( ISC Gen)(L-N)
Fault Current Calculation (TRANSFORMER To MAIN PANEL)
Available Utility or Primary KVA(Source).If You Don't Know than select"Unlimited"( Provide By Power supplay Company)
Supply System
Enter transformer KVA ratingSecondary Voltage Line-Line ( V L-L)Secondary Voltage Line-Neutral ( V L-N)Enter transformer impedance (Zt)Transformer CalculationsSecondary Voltage Line-Line ( V L-L)Transformer Secondary Full Current I (L-L)Transformer Secondary Full Current I (L-N)Source Impedance:(Zu)Total Impedance (Zu+Zt)Short Circuit Current at T.C Secondary( ISCa)(L-L)Short Circuit Current at T.C Secondary( ISCa)(L-N)Short Circuit Current (RMS symmeterical)
At Secondary (Line) Main MCCB Line TerminelMaximum Secondary Protection per NEC 450.3(B)Recommended Secondary Breaker RatingLength (L)Type of Conductor(3-Single Conductor cable) or (3 conductor cable)Type of RaceWay
No of Conductor per Phase (N)Size of Phase ConductorSize of Neutral ConductorPhase Conductor Constant ("C")Neutral Conductor Constant ("C")f (L-L)M (L-L)f (L-N)M (L-N)Do You Have any Motor ContributionsMotor Contributions (Line-Line)Motor Contributions (Line-neutral)Fault Current at termination of Main Disconnect (L-L)Fault Current at termination of Main Disconnect (L-N)
Fault Cuurent Calculation ( Main Panel To Branch Circuit Panel)
Feeder SystemFault Circuit Current at Main Service Panel(L-L)Fault Circuit Current at Main Service Panel(L-N)Volyage Line-Line (V L-L)Volyage Line-Neutral (V L-N)
Length (L)Type of Conductor(3-Single Conductor cable) or (3 conductor cable)Type of RaceWayNo of Conductor per Phase (N)Size of Phase ConductorSize of Neutral ConductorPhase Conductor Constant ("C")Neutral Conductor Constant ("C")f (L-L)M (L-L)f (L-N)M (L-N)Do You Have any Motor ContributionsMotor Contributions (Line-Line)Motor Contributions (Line-neutral)Fault Current at termination of Main Disconnect (L-L)Fault Current at termination of Main Disconnect (L-N)
Fault Cuurent Calculation ( Branch Circuit Panel To Outlet)
Feeder SystemFault Circuit Current at Main Service Panel(L-L)Fault Circuit Current at Main Service Panel(L-N)Volyage Line-Line (V L-L)Volyage Line-Neutral (V L-N)
Length (L)Type of Conductor(3-Single Conductor cable) or (3 conductor cable)
Type of RaceWayNo of Conductor per Phase (N)Size of Phase ConductorSize of Neutral ConductorPhase Conductor Constant ("C")Neutral Conductor Constant ("C")f (L-L)M (L-L)f (L-N)M (L-N)Do You Have any Motor ContributionsMotor Contributions (Line-Line)Motor Contributions (Line-neutral)Fault Current at termination of Main Disconnect (L-L)Fault Current at termination of Main Disconnect (L-N)
Cable/Conductor Unit:
Available Fault Current Calculation (Isc Calculation)Yes
300 KwThree Phase 1.732
480 Volts240 Volts5.75 %0.83
1125 Kva1353 Amp2706 Amp
23534 Amp1556185 Amp
No0 Amp
0 Amp
23534 Amp1556185 Amp
Fault Current Calculation (TRANSFORMER To MAIN PANEL)
Unlimited Kva
Three Phase 3 1.7323000 Kva Kva Base440 Volts230 Volts5.75 %