شرح حساب تيارات القصر Short Circuit والمعاوقه الكليه بسهوله وبأكثر من طريقه (الجزء الاول).

short circuit current calculations.
حسابات تيار القصر لاي نقطه في الدائره.
قانون اوم.
The short circuit current (Isc) is the maximum current that can flow in a power system when a fault occurs. It depends on the voltage (V), the total impedance (Z), and the type of fault. Here is a creative poem to help you remember the formula for Isc:
Short Circuit Current Poem
When a fault occurs in a power system The current can rise to a very high level To calculate the short circuit current You need to know the voltage and the impedance
The formula is simple and easy to recall Just divide the voltage by the impedance, that’s all But remember, the impedance is not a constant value It changes with the fault type and the circuit components too.
The basic formula for calculating short circuit current in a power system is Isc = V / Z, where Isc is the short circuit current in amperes (A), V is the pre-fault voltage in volts (V), and Z is the total impedance in ohms (Ω) between the fault point and the power sources. To calculate Z, all components in series between the fault point and the power sources must be taken into account, such as transmission lines, transformers, and generators. The impedance of each component can be expressed as a complex number with a real part (resistance) and an imaginary part (reactance). Additionally, it can be expressed as a magnitude (impedance) and an angle (power factor angle).
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