Substations Interview Questions and Answers: 1. State any four types of substations according to the service ? Ans. The substations, according to the service rendered are: Transformer substations, Switching substations, Converting substations and Frequency changing…
Dynamic Conditions of a SystemDrive: Dynamic or transient conditions occur in SystemDrive systems when the operating point changes from one steady state condition to another, following a change introduced in the system variables. These variables…
What is Thermal Runaway and Heat Sink? The maximum average power PC max which a transistor can dissipate depends upon the construction of the transistor and may lie in the range of a few milliwatts…
Advantages of High Transmission Voltage: The Advantages of High Transmission Voltage at high voltages due to the following reasons : (i) Reduces volume of conductor material: Consider the transmission of electric power by a three-phase…
Dynamical Equations of Electromechanical Systems: Dynamical Equations of Electromechanical Systems - Figure 4.19 shows an electromagnetic relay whose armature is loaded with spring K, damper B, mass M and a force generator F. Figure 4.20…
Depletion Type MOSFET - Construction, Operation and Characteristics: As we know already that when the gate is biased negative w.r.t. the source in an N-channel JFET, the depletion-region widths are increased. The increase in the…
Digital Voltmeters Features and Characteristics: Digital Voltmeters Features and Characteristics which includes measuring instruments that convert analog voltage signals into a digital or numeric readout. This digital readout can be displayed on the front panel and…
Transistor as a Switch Circuit Diagram and Working: The Transistor as a Switch Circuit Diagram and Working can be explained with the help of its output characteristics. Figure 31.2 shows the output characteristics of a…
Elements of Transfer Function Synthesis: A transfer function is generally defined to specify the properties of a two port network. Hence Elements of Transfer Function Synthesis is also known as two port synthesis. Consider a…
DC Motor Reversing Switch Diagram: DC Motor Reversing Switch Diagram is shown in Fig. 5.34(a). A fully-controlled rectifier feeds the motor through a reversing switch RS which is used to reverse the armature connection with…
