working

Answer Posted / samir300681

How will i connect 75 nos computer online ups?

Is This Answer Correct ?    0 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

How will you justify IR value and Charging voltage of any motor,transformer and Cables.......???? . . . . . . . . Plz tell me any body Baljeet Singh, engineer_89@refiff.com

1628


How to test the vector group of a Yd11 transformer? what are the relations to be checked between various vectors to confirm this vector group?

4007


please explain to me how to calculate current,voltage,resistance with formula??

982


how to calculate fuse rating for a motor

4895


Define settling time.

724






What is the types of HT motor testing

3026


What do you mean by a voltage transformer?

693


How does HT work & Voltage required?

1748


How to choose the vector group for the step up and step down transformers??? Tell me the which vector group is suitable for step up and step down transformers and whats the reason to choose and whats the benefits???

1839


At the starting of dc motor and syn.motor and induction motor high current flowing through the winding. Due to this the windings burnt out. To avoid this different types of starters are used. But incase of transformer what Will be used (At starting no emf is induced in the primary winding)?

1550


If the Brush of DC motor is shifted by 90 deg, then what happens to voltage and torque? Both voltage and torque are zero. how to justify the answer?

943


what about the power of wattmeter at starting and loding?

1660


How to use computer cpu ups use for home inverter circuit board

1295


What is the basic principle of operation of alternators/dc generators?

626


A 400KVA transformer has 400 Hz frequency. If the frequency is changed to 50 Hz, then what will be the new KVA rating?

1367