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What is Control & Relay Panel? And Remote Control Center?
Power Factor Correction Panel (Manual & Automatic)
What are :- AC Distribution Board (Single & Double Front) DC Distribution Boards Distribution Board LT Breaker Panel.
Explain using drawings what is reverse PID action w.r.t PID controllers.
why we use copper earthing for neutral while for body GI.
why power factor is important?
can u describe the method used for protection of transmission line.
why impedance relay is used for medium transmission line protection
why they were using TRIAC instead relay in some controllers and what is the advantages.
we have earthmat at 110KV substation.we would like to take earth resistance.b some says that by connecting earth megger terminals (C1,P1) at middile point of earthmat (at riser) will cause voltage gradient at other earthmat nods and dont get exat earth resistance.when connecting at end nods will get exat value . is it correct .please explain
I have a small system with two motors that are running on 380 vac, 60 hz. These motors are expensive and I usally get them from Brazil. I am adding another motor to the system, but I want to purchase a 480 vac, 60 hz motor to use. It will be on a VFD that is rated fro 380 thru 480. Is this posible and will I have to use a larger motor and derate it?
Generation of voltage for each phase are same of a turbogenerator.Although the short circuit current flow when two phase of turbogenerator are shorted(where current can't flow without potential difference),why?
WHAT IS DOL STARTER? HOW IT WORK? GIVE ITS CONTROL AND POWER DIAGRAM .
what is star delta starter? how it works? give its control and power diagram.
what is induction furnance? how many phase supply given io its coil for 15 or 20 ton furnance?
