in Contactor opearation Why there is a difference in the values of the operate and release voltage in case AC supply
1559hi frienda We have 750kva cater pillet dg set we are fasing one diffrent proublam in dg we are start dg set after one mint applying load around 450a load but dg was run 3 Or 4 mints after 3 mints dg was shuding down automatic how to face this proublam pls tel any budy
1 2732what is the function of anti pumping relays? what is KVAR? How it is generated in alternator? What is 3rd Harmonics? What is IDMT relay?
1843What will be the change in its efficiency and other parameters of a ONAN transformer if it changed to ONAF transformer ?
3 4126What is a Single Phase and Three phase Power? How it will be converted or transformed into another form?
3 7468Post New Electrical Engineering Questions
How to design a Unit auxiliary transformer for a power house having a unit of 65 MW and Generating voltage of 11 KV and Secondary voltage of 433V
explain why core loss of a transformer is almost constant under different load conditions when connected across a constant voltage and constant frequency.
Write down the brushes of a de machine.
what is laser diodes?
do we use neutral grounding for resistive balanced load? if we use what happen?
Why front mounted CT polarities are always towards breaker?
What is touch potential and step potential?
what is distribution board?
What is inrush current?
How to decide cable tray size?
what is the safty of poly phase tranformer?
How to convert 2 phase to 3 phase electricpower in induction moter?
what is the use of static frequency converter and static excitation equipment? and where it is employed? for what?
For a three phase induction motor, what will be the effect on motor if the neutral of the system is shifted to say 20 deg.?
How to control motor gearbox speed and friquency? If length of cable and dia given, how to measure the voltage drop?
