Why in USA supply voltage parameters(230V,60Hz)are
different,is there any advantage please brief.
Answer / ankush miglani 09718151073
dear in actual wat happn in 19 and 20 century the t/fs and
m/c becoming very popular. these two gives the best o/p at
low frequencies like synchronous generators at 2hz fr.
bt now the transmission lines require high fr to transfer
the voltages without or at minimum loses.
so standards are defined
for high fr low voltage and for low fr high voltage
for a fr of 60 hz only 100-120 v is sufficient
and for 50 hz 200-240 v
some contries adopt the formal one while other adopt the
later one.
now see the case of japan in some area 60 hz is used while
in some area 50 hz is used
jisko jaisa convinient lga us contry ne wohi adopt kr liya
Is This Answer Correct ? | 10 Yes | 2 No |
How equivalent impedance is calculated in thevenin theorem?
what is pressure relief valve in D.G ?state its function?
How can we convert 11 kv to 440 volt without using transformer ?
how does a current carrying conductor posess a magnetic field. what is the reason for the production of electro magnetic field around the conductor
what is mean by transition resistance of transformer?
neutral,ground & earth different b/w
I want to ask a question which i faced during testing of Capacitive Voltage Transformer in AIS. We have measured the C1 , C2 individually , but when we start to measure the total C1+C2 , the testing equipment shuts down and says low loading. Kindly is it possible to find the total capacitance by using measuring device. kindly briefly explain the procedure.
why CT out put is 5 what ever the primary current.
Give 3 phase transformer connections for 24 pulse rectifier using thyristors.
what is the function of LBB relay
can induction motor becomes as a generator. if yes how it is possible. if there is a squirrel cage rotor.
What is the difference between type1 and type2 relay protection co-ordination for motor feeders