电工计算公式(Electrical calculation formula) A power transformer rated apparent power Sn=200KVA, no-load loss Po=0.4KW, short-circuit loss PK=2.2KW rated current of the transformer, the measured output power of P2 = 140KW, two times the power factor 2=0.8. The load rate and work efficienc...
P = IE, P = IU, P = ETA {I: total /P total current circuit (A), E: electromotiveforce (V), U: terminal voltage (V), ETA}: power efficiency 9. circuit series / parallel series circuit (P, U and R is proportional to) parallel circuit (P, I and R is inversely ...
The impedance Z of a series RLC circuit is defined as opposition to the flow of current, due to circuit resistance R,inductive reactance, XLandcapacitive reactance, XC. If the inductive reactance is greater than the capacitive reactance, i.e XL> XC, then the RLC circuit has lagging phase an...
The formula for inductive reactance is XL = 2πfL. So, if frequency increases, inductive reactance XL also increases and if inductive reactance increases, total impedance of circuit also increases and this leads to variation in phase angle θ with frequency. So, in series RL circuit if ...
Series and Parallel Circuits Current Formula Current in Circuit Electric Circuit: Examples Lesson Summary Frequently Asked Questions How is an electrical circuit diagram drawn? An electrical circuit is drawn by using a solid line for the wires. Symbols are drawn on the path of the wire to represen...
The Ohm’s Law formula isI = V/R, whereIis the current through a circuit element measured in amperes (or amps),Vis the potential difference across the circuit element measured in volts, andRis the resistance of a circuit element measured in ohms.[2] ...
This paper presents generalised analytical formulae for computing the electrical properties of any multiparameter arbitrary section homogenous ladder network that can be reduced to series and shunt impedances. Circuit principles, chain matrix decomposition and linear transformation are used to derive the ...
Voltage is the difference in electrical potential between two points in space, and in the case of a connected electrical system, two points in the circuit. It is a measure of the amount of energy gained or lost by moving a unit of positive charge from one point to another. Voltage is me...
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Let’s find the admittance (Yin) of the above circuit. Consider that, the Resistor (R) andInductor(L) are in series. And this combination is in parallel with theCapacitor(C). Hence, the Impedance is, Now, we separate the imaginary part and real part of the above equation with the hel...