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Answer Posted / koti
DC
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On what basis the the size of Lightning arrester for buildings are selected ?
I have been using an 600VA with 0.6 p.f UPS with my desktop which has 450W power supply unit. Can anyone explain how can this happen . Because the output of the UPS is 360W (600*0.6) (<450W)
HOW CAN WE DECIDE THE SUPPLY VOLTAGE FOR MOTOR ACCORDING TO ITS RATING(IF ANYONE KNOWS GIVE IT WITH EXAMPLE AND ITS CALCULATIONS)
Why we make earth connection with Transformer Body and What will be the minimum size of copper wire as per code with respect to KVA rating of Transformer?
how can we calculate the ampacity of the electrical wire/cable. and what are the factors must be considered. pls. elaborate.
How can we measure the residual voltage in dc machines?
what are factors to be consider to design a HT & LT motor?
1.main parts of generator? what is used A-check,B-check,C- check? 2.what is FM200 system in data centers? 3.difference between pac,ahu?
Can you please explain creepage distance in detail, for a 6.6kV cable head what must the distance be and how do you determine it?
What is CVT and what is relation with wave trap?
Has someone here done a sizing for a generator (3 phase), its for a pumping station. If you have an example for standby/duty and both running (I) star delta (ii) Soft Starter.
How LT megger works ?
why does a dc machine has high efficiency while working as a generator than as a motor ..
What should be setting for alarm,tripping and cooling fan on for power transformer's oil temp. and winding temp. indicator?
How to calculate no of EARTH PIT? Describe the formula as per IS standard?
