There is no such thing as a Generator. All power generating
devices are Alternator since both generate alternating
current since this is the only way electrical power can be
generated. In "generators" the alternating current is
converted into DC inside the housing of the "generator" in
order to give out DC
Do you agree? If not please educate me. How else is DC
generated if not like above?
How to calculat the ratio of HT\LT in energy meter
who can measure the size of power cable?
can i use ups power as a raw power for another ups
what is earth fault relay 64T, why it is used in main Incomer
and neutral CT of Transformer.
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.
1.Z transform always lies around ?
a) origin b) pole c) zero d) z=1.
Multiples Mcqs which is bother me can’t find answers on internet. Some help required with little explanation .
Note: this is not homework or related to any test. Thanks
in 220 kv substation,what is the mean of avr voltage reading?
means at oltc temp. 36 the avr voltage was 109v.so what the
mean of 109v
how many types of motor can be used in washing machine
what is different between relay and plc?
why the field winding in dc motor is not short circuited eventhough dc supply is applied across the winding
what parameters are should nessary for control technic dc
drive(in rolling mills)?
Why arc quenching is used in Diode ?
how to find 5 kilo meter long under ground 33 kv cable
fault location if IR VALUE shows 0.05 M ohm @5000 volt.and
cable fault locator shows some time fault distance 3 kilo
meter ,3.7 kilo meter and some time 1 kilo meter? now how
to find the fault location that where is leakage.
note--it is tested with 5000 kv megger and insulation
resistance is 0.05 M ohm. and some time 0.03 M ohm comes.
I am shobana from Chennai. I am having my personal
interview on 19th Dec at Chennai.kindly mail me the
questions to mail id email@example.com
A ii kv 1200 A Breaker combination fixed in a cubicle. How
many ampere Fuse is required? If fuse is not using, Why?