Summation Device: Summation transformers and sequence networks as already discussed can combine a number of electrical quantities into a single quantity. The operational amplifier is commonly used as a mixer…
What is Summation Transformer? Summation devices are employed to compare the relaying quantities derived from the currents in the three phases of the primary circuit. The effectiveness of the comparison…
Basic Components of Static Relays Articles Semiconductor Diodes in Static Relays: The pn junction has rectifying characteristics as shown in Fig. (10.1). If a source of emf is connected to…
Differential Protection Relay in Power System: A Differential Protection Relay in Power System scheme compares quantities derived from the input and output currents of the protected circuit in such a…
Power System Protection and Switchgear Articles: This Power System Protection and Switchgear Articles which includes the following topics: Basic Ideas of Protection Relay Fault Meaning Zone Protection Essential Qualities of…
Electrical Power Engineering Articles: This Electrical Power Engineering Articles which includes the following topics: Â Refrigeration Cycle Diagram Explain Vapour Compression Refrigeration System Explain Vapour Absorption Refrigeration System Thermoelectric Refrigeration…
Discrete Fourier Transform Interview Questions and Answers: 1. What is zero padding? What are its uses? Ans. Let the sequence x(n) has a length L. If we want to find…
Discrete Time Signals and Linear Systems Interview Questions and Answers: 1. What do you understand by the terms: signal and signal processing? Ans. Signal: A signal is defined as any…