what is PPI DB?
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Answer / sangram kumar sahu
power protection instrument distribution board
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how to cal calculate capacitance in DC Circuit
how will be power factor while using the resistive load and Capacitive load?
what are eddy currents
What is proximeter? where it is used and why?
what is the significance of tan delta testing?explain the theory?
why dimmerstate always connected in star connection? what will happen if it connected in delta?
What is knee point voltage?
What is DG B-check and C-Check
give me list of material for wiring of 20hp motor?
How can eliminate noise problem inside temperature controller temp. variation due to contactor chattering problem.
what is the main difference between power devices and signal devices
I have a 600VA numeriv digital UPS for computer only. It holds for 15 minutes only. but i am try to using home CFL Light I cant using UPS 2 or 3 secound automatic off .but computer ok how to change this is in to ups ?