Star Delta Transformation Formula: While dealing with currents and voltages in loads, it is often necessary to convert a Star Delta Transformation Formula, and vice-versa. It has already been seen that delta (Δ) connection of…
Inter Connection of Three Phase Source and Loads: Inter Connection of Three Phase Source and Loads consists of for Parts, Namely Inter Connection of Three Phase Source Wye or Star-Connection Delta or Mesh-connection Interconnection of…
Generation of Three Phase Voltage: Three Phase Voltage can be generated in a stationary armature with a rotating field structure, or in a rotating armature with a stationary field as shown in Fig. 9.2 (a…
Polyphase System: In an ac system it is possible to connect two or more number of individual circuits to a common polyphase source. Though it is possible to have any number of sources in a…
Locus Diagram of Parallel RLC Circuit: (a) Variable XL - Locus plots are drawn for parallel branches containing RLC elements in a similar way as for series circuits. Here we have more than one current…
Locus Diagram of RL Series Circuit: To discuss the basis of representing a Locus Diagram of RL Series Circuit by means of a circle diagram consider the circuit shown in Fig. 8.19(a). The analytical procedure…
Current Magnification in Parallel Resonance: Current Magnification in Parallel Resonance occurs when the voltage applied to the parallel circuit, V=IR Since For the Capacitor, Therefore, the quality factor Qr = IL/I or IC/I Reactance curves in…
Quality Factor of Parallel RLC Circuit: Consider the Quality Factor of Parallel RLC Circuit shown in Fig. 8.16. In the circuit shown, the condition for resonance occurs when the susceptance part is zero. Admittance The…
Parallel RLC Circuit Resonance: Parallel RLC Circuit Resonance - Basically, parallel resonance occurs when XCÂ = XL. The frequency at which resonance occurs is called the resonant frequency. When XC = XL, the two branch currents…
Voltage Magnification in Series Resonance: Voltage Magnification in Series Resonance - If we assume that the voltage applied to the series RLC circuit is V, and the current at resonance is I, then the voltage…