Types of Unit System

Types of Unit System: All physical quantities are measured in certain units. There are two Types of Unit System, namely: Fundamental units Derived units Fundamental Units: All the physical quantities…

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Per Unit System in Power System

Per Unit System in Power System: Per Unit System in power system is usual to express voltage, current, voltamperes and impedance of an electrical circuit in per unit (or percentage)…

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Per Unit System

Per Unit System: While carrying out the analysis of electrical machines (or electrical machine systems), it is usual to express voltage, current, VA and impedance in Per Unit System (or…

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Operating System Interview Questions and Answers

Operating System Interview Questions and Answers: Following are the below Operating System Interview Questions and Answers, Operating System Important Questions and Answers 1. Define Operating Systems. Ans. An Operating system…

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DC Excitation System Working Principle

DC Excitation System Working Principle: In dc excitation system, the system has two exciters—the main exciter (a separately excited dc generator providing the field current to the alternator) and a…

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