Carrier Aided Distance Protection Scheme: The directional comparison carrier pilot relay schemes presently employed are built around standard three-zone step type distance relays. This speeds up fault clearance for internal zone 2 faults. The carrier…
Phasor Diagram of Transformer: For the approximate equivalent circuit of Phasor Diagram of Transformer is shown in Fig. 3.16(b) The phasor diagram corresponding to this equation is drawn in Fig. 3.17(a) for the lagging power…
Instruction Cycle of 8085 Microprocessor: During normal operation, the microprocessor sequentially fetches, decodes and executes one instruction after another until a halt instruction (HLT) is executed. The fetching, decoding and execution of a single instruction…
y Parameters of Two Port Network: y Parameters of Two Port Network are also called admittance parameters. These are obtained by expressing currents at two ports in terms of voltages at two ports. Thus, voltages…
Electric Generator Diagram: Electric Generator Diagram - Electricity does not occur naturally in usable form and it also cannot be stored in usefully large quantities. Therefore, it must be generated continuously to meet the demand…
Induction Motor Speed Control Methods: The only way to control the speed of a synchronous motor is to control the input frequency and voltage such as to keep V/f constant. The Induction Motor Speed Control,…
Measuring the Sine Wave: As the magnitude of the waveform is not constant, the Measuring the Sine Wave can be in different ways. These are instantaneous, peak, peak to peak, root mean square (rms) and…
Pin diagram of 80287 co-processor: The pin diagram of 80287 co-processor is shown in Fig. 7.53 and the function of pins are given below: D15-D0 The D15-D0 is used as a 16-bit data bus which…
5x7 Dot Matrix Led Display Character Patterns: Excellent alphanumeric characters can be displayed by using dot matrix LEDs with an LED at each dot location. Commonly used Dot Matrix Displays of prominent characters are 5…
Conductor Semiconductor and Insulator: Bonding Forces Between Atoms: Whether a material is a Conductor Semiconductor and Insulator depends largely upon what happens to the outer-shell electrons when the atoms bond themselves together to form a…
