what will happen reduce the transformer voltage from 415v to 406v, is it save the energy,? are this methodis good to reduce the energy.?
1092Actually I have a doubt on neutral and earth.we use Ac power without taking neutral by connecting to earth,but at that time does it affects on efficiency of any electrical components or no? If yes how?
946how to caculate cable size for diff types of loads? if anyone know the calculating procedure please tell me
954how to calculate current carring capacity of cable and cable selection? 1) copper flexible cable 2) copper armoured cable 3) Aluminium cable
1051Post New Electrical Engineering Questions
write circuit diagram for a motor rotate in forward direction once it started and when pressed the same button it should rotate in anticlockwise.
What are the different types of controllers?
What do you mean by ratio correction factor of instrument transformer?
How to size fuse? How to size MCB?
What is the loss of power of transformer 220kv/33kv,63/80mva of % imp12.05 at 80%load
i have seen one 8.4 MW synchronous motor in a plant located in bellary it is fixed with brushless rotary rectifier ,anybody can explain its start up principle
which is the most advanced form of SF6 BREAKER?Can we use other gases to quench the arc?
How does a television work?
How many types of probe used in cro?
What is a feedback in control system?
What is class ab operation?
What is the RMS and DFT principle of analogue maesurments. Which way they are advangages. where which princples give optimum results.
how we select ac fuse rating of an power inverter???
Can u explain : what is supply for train (whether a,c or d.c ).I know that supply is 25000v a.c .But there is rumour that supply is D.C. And also explain how lights and fans inside the trains are working ,and what type of motors are used in trains whether D.C motors or induction motors .If d.c motor, how it gets supply.If traction motors are used then what are traction motors and its functions and how it differs from other motors and also explain about locomotive . y d.c series motor in train.train wheels r driven by D.C shunt motor ,at what voltage,and at what speed. please reply..............
how to calculate the earth mat design in 132 kv substation yard ????
