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What is a single phase autotransformer?
why are distributed windings generally used in alternators?
what is the safty of poly phase tranformer?
hello friends..... any one have papers or any study materials?sail ,hpcl...?
In ups static switch if i gives the supply at output end it will open the circuit in stactic switch or not if it will open then how it operates.
1)what is the function of a frequency inverter? 2)If a few frequency inverter are connected onto a device network,what are the two setting that will ensure the frequency inverter work properly on the network. 3)whats is the name of the input sensor for weigher? 4)How to confirm that the load cellis faulty? 5)Describe briefly the steps to validate that the weigher is working properly? 6)Describe the procedure to validate the flowmeter accuracy? 7)Describe briefly the steps to validate that the tempreture sensor/transformer is working properly. 8)what is the adjustment that need to be done when you are calibrating the temperature transmitter ? 9)what are the safety measures to be taken before disconnecting motor for rewinding. 10)whats is the synchronous speed in rpm of typical 4pole 50hz motor? 11)whats is the formula for kw, ohm's law 12)if a 3phase motor is rated 3kw,415vac,what is it's rated ampere?
what size steel armoured cable is required to support 1500kva capacity. would 70mm squared be enough or would I need 90 or 120mm squared 3c plus earth
Define closed loop control system.
What is meant by stator?
what are the difference between AC lamp and DC lamp
how is control wiring coding is done in a CRP panel ?
difference between semiconductor & conductor & insulator?
power transmission pole used one support , that only for support or earthing
An active element is one which a. Supplies energy b. Absorbs energy c. Supplies energy and convert energy from one form to another
There are different classes of protections in power plants.class a,b,c are clear..is there any class d and e r there..and elaborate class b protection.
