Why 50hz and 60hz frequencies are used by the world, why
they are not taking 55hz?
Answer Posted / saa
RPM of Prime mover is related with Electrical frequency.
Some countries use 50 HZ with 1500 Rpm for 4 pole
Some countries use 60 Hz with 1800 Rpm for 4 pole
for 55 Hz 4 pole RPM of Prime mover will be 1650
Some countries use 50 HZ with 1000 Rpm for 6 pole
Some countries use 60 Hz with 1200 Rpm for 6 pole
for 55 Hz 6 pole RPM of Prime mover will be 1100
Itz just matter of Choice.
| Is This Answer Correct ? | 22 Yes | 2 No |
Post New Answer View All Answers
how pt is using
how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING)IO (current operating
How cable from Kit-Kat to main switch, from starter to motor are designed?
please send 5yearje solved papers on my email himmatsinghnathawat@gmail.com
How can we choose the rating of submersible motors
why industry prefer ht motor instead of lt motor.
Please brief working principle & construction of permanent magnet AC Servo motor
please send me RRB electrical engineer previous year questions for Sr. Section Engineer
i need to give section engineer (electrical engineer) for RRB. Please suggest some book
operation of diesel generator
What is the feedback in the control system?
What are the material used for resistor?
What current position are you holding in your current company?
WHAT IS THE USE OF PIG TAIL IN WINDOW CT ?
can any one tell me about the Extra low voltage systems?From where we give supply to these type of systems??