Answer / adel hesham

Speed is inverse to torque and proportional to power

So if I need a fixed speed then torque and power should change proprtionaly to fulfill the required speed constant

Also using and encoder for speed feed back helps the vfd to produce the correct torque which fulfill the stored / required speed

1 “earthing” for bonding of equipment and circuits to common plant earth electrode potential, 2 “protective earthing (PE)” when this bonding is required for personal safety provisions 3 “grounding” for interference suppressing bonding of screens, sys-tems with ground level 4. low-impedance earthing ? 5.primary earthing system and secondary earthing system what is that? 6.earthing electrode or mesh net earthing electrode ? very confusing , simple but very informative help required ? i will be very very thankful to you guys.

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hello everybody. please tell me the function of transformer bushing,s. i heared somewhere that it saved transformer winding from sky electricity. please tell me if that is right then how it work,s. Thank,s.

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11 kV line deraction check by an Engineer.

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