Answer / Rahul Arora

Control systems can be categorized into two main types: open-loop systems and closed-loop systems. Open-loop systems do not have feedback, whereas closed-loop systems utilize feedback to adjust their output based on errors or deviations from the desired setpoint.

i need to connect fact device(any one from following upsc,sssc,svc,statcom and tcsc)in 14 bus system....by using MATLAB psat software....if i connect these fact devices,i will get some error as "virtual error"...i cnt rectify this error.if anybody know that how to work in psat,pls help me to rectify this error.... or send mail me to, viki0607@yahoo.co.in

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Define the overload capacity of the motor.

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there are a transformer and a motor. both are connected to 3phase, 415 Volt, 50Hz power supply. Both are working with induction principles. Then, why, motor is rotating and transformer is not rotating.

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How will you utilise electrical power? You can start from the generating station.

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Define maximum demand?

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Why overhead transmission line in triangular shape?

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tube light how its working.,?

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