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Electrical Basics

Basics of Star and Delta connections

S Bharadwaj Reddy
Comparison between Star and Delta Connections Differences: The two systems have vastly different applications. Yes, there is a lot of crossover between them in some fields, but the two are...

Variable Frequency Drive (VFD) Working Principle

S Bharadwaj Reddy
History of Variable Frequency Drives (VFD) When Tesla first introduced the 3-phase alternating current (AC) induction motor in 1888, he knew that his invention was more efficient and reliable than...

Basics of Electrical Transformer

S Bharadwaj Reddy
Electrical Transformer is the most used electrical machine in power system. Both in the power transmission and distribution of ac network, transformer has its mandatory use. 1. Basics of electrical...

Electrical Voltage and current Signals

S Bharadwaj Reddy
Voltage and current levels in electrical engineering is very important. As any electrical system, equipment, devices all are characterized by their different voltage and current levels. Voltage levels in Electrical...

Current Transformer Selection, Operation & Maintenance

S Bharadwaj Reddy
Current Transformer: For Selection, Operation, and Inspection & Maintenance In general, large currents (hundreds of amperes) cannot be directly input to powermeters for measuring power. Therefore, the current is passed...

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