Why Power generation in India is at 50Hz while in America
its 60Hz so is there any advantage/Disadvantage of this ??
Answers were Sorted based on User's Feedback
Answer / pratap kumar
In India the electrical system is come later as compared with U.S. USA is choose 60hz frequency for 110-120v. The losses are increased in any machine by increase the frequency. but the voltage is low as compared with India. then the voltage loss occur in machine is low when compared to India.but the frequency losses are more . My conclusion is in India the machines are supported to 240v,50hz for cover the losses and in U.S is 120v,60hz respectively.
advantages for USA supply
1: it is safe from shock hazards because the voltage is low
2: suppose the supply is grounded less power is loss as compare with India
the above two points are disadvantages for India
suppose we use 60hz with 240v it is very dangerous and it cause more losses in machine.
Is This Answer Correct ? | 2 Yes | 0 No |
Answer / vivek singh
for the frequency less than 50 hz electrical lamps will
appear to dark and glow .human eye cannot see the
fluctuation for frequency more than 50 hz, but if frequency
is increased more losses will increase and the voltage
applied can be reduced.In India 50 hz is used too prevent
losses but it is more danderous for human life.In USA 60 hz
is used because they can bear losses but not the loss in
human life.
Is This Answer Correct ? | 2 Yes | 1 No |
Answer / meenakshi
i think dis is not an adv or disadv bz as Indian appliances are manufactured for 50 hz we use dat but US appliances are made for 60 hz it is not at all economical for us to change now to 60 hz and more over our gen is less compared to US
Is This Answer Correct ? | 1 Yes | 0 No |
Answer / afzal ansari
its true that the power stations include a fixed speed of
rotor(3000 rpm) and fixed no. of poles as producing 50 hz
supply but i think it is fixed due to the conventional
electrical equipments which were using the same supply and
now a days equip.are designed on the basis of that...
Is This Answer Correct ? | 1 Yes | 0 No |
Answer / chadak singh rathode
Transmission losses would be high if we use 60hz and it is of high cost when compared. A motor that is designed to run on 60 Hz and is plugged into a 50 Hz system will turn 17% slower, the internal current will go up 17%, the amount of power (watts) will go down 17%, and the mechanical cooling will be 17% less. The end result will be that the motor will be using a higher current then what the motor was designed for, and this in turn will burn up the insulation of the electrical wiring which can result in burnout which could cause a fire because of the excessive heat. The reason that 120v service was chosen, was economic. Originally electricity was delivered to homes, and most businesses, for a single purpose and that was lighting. Can openers, TVs, washers, dryers, electrical factory machinery, etc. came later. At the time the most cost effective form of light bulb was a carbon filament bulb that operated best (optimally) at 100v to 110v. This, adjusted for transmission voltage drop, set most supply lines at 120v.
Is This Answer Correct ? | 1 Yes | 0 No |
Answer / vijay
THAT IS THE INDIAN STANDARD ADOPTED , IF WE ALTER THAT THE
ALL MACHINES STANDARD IS TO BE CHANGE.
Is This Answer Correct ? | 10 Yes | 10 No |
Answer / don
in britain they used 50 hz supply so they installed plants
in india on their own standard,but americans followed to use
60 hz.there is no practical difference between these two
rated frequencies.
Is This Answer Correct ? | 8 Yes | 8 No |
Answer / mullu
m nt satisfied with the answers pls give some right answers..
Is This Answer Correct ? | 2 Yes | 2 No |
Answer / harish repalle
its an hypothetical question ...........
Is This Answer Correct ? | 2 Yes | 2 No |
Answer / sharat das, mahindra ltd.
The frequency is 60hz and 110v supply. but in india
is about 240v,50hz supply. for a particular load say 100kw
the current will be 0.416A. but in 60Hz the same load will
consume about 0.9A. here the thing is the heat produced in
the cable bcoz of the flow of current will be large in 60Hz
compare to India. since a cold country they can use
this level but not by India. And also specified for Country By WEAC Roles.
Is This Answer Correct ? | 0 Yes | 0 No |
wow to calculate the transformer rating(KVA)
1. what is the power factor of a purely inductive load? 2. Which type of transformer connection is preferred in case of power supply transformers? 3. In power transformer usually which winding is closer to the core? 4. what will happen to the generated emf if the no. of poles of an alternator is increased?
which capacity of RCCB used for five thousand watt electricity load?
what is per unit impedance?
What is difference between incomer & outgoing type Vaccum Circuit Breaker?
All the voltage drops and the source voltage added together in a series circuit is equal to
how many kw = one ton air condition?
Dear All, I am new in construction company , my boss ask a question at time of interview , If we have 60MW generation and Single Power Transformer step-up we have. if CMR 50/60MVA , ONAN, ONAF respectively , is it sufficient or not ? for that much power to transfer,
HOW DO A DISTANCE RELAY SENSES THE FAULTY ZONE.
Can we calculate the P.F if we know the only load on alternator .
What are the difference between normal application Transformer and Solar application Transformer?
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