Electrical
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Why rating of Synchronous Generators and Alternators in MVA or KVA?
The synchronous generators or alternators are rated in KVA or MVA instead of kW rating. Electrical appliances or machines generally…
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Power Factor Correction equipment (PFC)
Power factor correction (PFC) can be done by passive or active circuits. Advances in semiconductor technology and low prices of…
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Features of Motor VFD
Modern DC and AC motors provide useful features when using electric motors as final control elements. Here are some common…
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Zener diode regulator
What is zener diode regulator? Zener diode regulator is an electronic device designed to protect electrical and electronic devices sensitive…
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Causes of electric motor failure
Electric motor is an essential electrical device in the home and industries. In general, in large organizations, an engine maintenance…
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Motor controllers
Motor controllers range from a simple switch to a complex system that uses solenoids, relays and timers. The basic functions…
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What are piezoelectric actuators?
Piezoelectric actuators represent an important new group of actuators for active control of mechanical systems. Piezoelectric actuators is used to…
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What is Multi-conductor cable?
What is Multi-conductor cable? Multi-conductor cables are a single variation of twisted cable, and each cable houses at least two…
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What are fixed resistors? Types of Fixed value Resistors
What are fixed resistors? The electrical behavior of a resistor obeys Ohm’s law for a constant resistance; however, some resistances…
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Relays for Star-Delta motor, Timer relay and Overload relay
Timer Relay: Attached to the main contractor serves as a switch from the Star relationship to the Delta relationship. The…
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