Free Expert Guides on Power Systems, Circuit Design & Electrical Troubleshooting

Capacitor in SeriesLet us connect n number of capacitors in series. V volt is applied across this series combination of capacitors.Let us consider capacitance of capacitors are C1, C2, C3…….Cn respectively, and equivalent capacitance of series combination of the capacitors is C. The voltage drops across capacitors are considered to be V1, V2, V3…….Vn, respectively.Now, if Q coulomb be the charge transferred from the source through these capacitors, then,Since the charge accumulated in each capac

Quality Factor of InductorEvery inductor possesses a small resistance in addition to its inductance. The lower the value of this resistance R, the better the quality of the coil. The quality factor or the Q factor of an inductor at the operating frequency ω is defined as the ratio of reactance of the coil to its resistance.Thus for a inductor, quality factor is expressed as,Where, L is the effective inductance of the coil in Henrys and R is the effective resistance of the coil in Ohms. As the un

To demonstrate how does a capacitor work, let us consider a most basic structure of a capacitor. It is made of two parallel conducting plates separated by a dielectric that is parallel plate capacitor. When we connect a battery (DC Voltage Source) across the capacitor, one plate (plate-I) gets attached to the positive end, and another plate (plate-II) to the negative end of the battery. Now, the potential of that battery is applied across that capacitor. At that situation, plate-I is in positive

Whenever we connect an uncharged or partly charged capacitor with a voltage source whos voltage is more than the voltage of the capacitor (in case of partly charged capacitor) it recieves charge from the source and the voltage across the capacitor rises exponentially until it becomes equal and opposite to voltage of the source.Let us connect one capacitor of capacitance C in series with a resistor of resistance R. We also connect this series combination of capacitor and resistor with a battery o

A capacitor is a device that stores electric charge and can release it when needed. Capacitors are widely used in various electrical and electronic circuits, such as those in heating and air conditioning systems, power supplies, radios, and computers. Capacitors can have different shapes, sizes, and materials, but they all have two terminals that connect to a circuit.Sometimes, capacitors can fail or degrade over time, affecting the performance of the circuit. Therefore, it is important to know

This paper proposes a novel configuration of a dual UPQC supplied by a dual photovoltaic (PV), hereinafter referred to as 2UPQC-2PV,to improve the power quality performance of a single-phase 220 V/50 Hz distribution system. The 2UPQC-2PV configuration is proposed to anticipate the possible failure of both inverters in one of the UPQC circuits. The PV array replaces the DC-link capacitor to maintain its voltage connected to the DC-link of the UPQC constant while at the same time supplying active