SOURCE IMPEDANCE CALCULATION IN POWER SYSTEMS
X/R Ratio Calculation X/R ratio is the ratio of inductance to resistance of the power grid up to the point of fault. Near to large generating stations and large substations, this ratio
To calculate Base Current using the Base Current calculator, you use the formula Base Current (PU) = Base Power / Base Voltage. Base Current (PU) is the ratio of the base power to the base voltage of the system, denoted as Ibase or IpuB. The calculator helps you determine the Base Current based on the provided base power and base voltage.
Base Current is the ratio of base voltage to base power of a system, denoted as I base or IpuB. It is calculated as IpuB = SB/Vbase or Base Current (PU) = Base Power/Base Voltage. Base voltage is the nominal rated voltage of the system, and base power is the product of base current and base voltage.
In the power system, Base Current (PU), denoted as IB, is the rated current, while Base Voltage (PU), denoted as VB, is the nominal rated voltage. The base power, measured in Watt, is the product of base current and base voltage (Sb = IB * VB).
The AC input current for a DC power supply can be calculated using a few known product specifications, as follows: 3-phase AC Input Current Formula: 1-phase AC Input Current Formula: where: Several parameters influence the power supply's AC input current rating, each of which are described in this section.
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