which pole motor is best ?4 pole motor or 6 pole motor,why?

Answer Posted / rajeshsan

The selection of 4 pole or 6 pole depends on application and speed.

To explain in detail

speed, N = 120f/p
where,
N
f = frequency
p=poles

From above it was clear speed depands on frequency and no of poles.

Is This Answer Correct ?    5 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

1.25 kg of hydrogen are burnt with stiochiometric air, the mass of air in kg required is

1436


what is 400kv doble circuit quadpole tower?

1474


What are safety device in vcb and acb?

3265


What is CCT (Correlated Color Temperature) ?

1499


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,

1212






I Want randstand placement papers

1353


y we use neutral,all r told its used to for closed path..k its a just used to closed path,in a transmission line y we put same conductor used n both phase and neutral..if we use less than phase conductor in neutral mean we ll reduce cost its right r wrong..if we use mean any problem occur in transmission line..

1524


What happens to a motor if it is connected in Delta connection

565


WRITEDOWN FEW RELY CODES

1801


i need previous entrence exam papers of nhpc.

2355


what is the role and fuction of automatic transfer switch in rotary ups

1433


v/f drive basic princeple

1997


a governer in an Ic engine controls the

692


1)what is the function of a frequency inverter? 2)If a few frequency inverter are connected onto a device network,what are the two setting that will ensure the frequency inverter work properly on the network. 3)whats is the name of the input sensor for weigher? 4)How to confirm that the load cellis faulty? 5)Describe briefly the steps to validate that the weigher is working properly? 6)Describe the procedure to validate the flowmeter accuracy? 7)Describe briefly the steps to validate that the tempreture sensor/transformer is working properly. 8)what is the adjustment that need to be done when you are calibrating the temperature transmitter ? 9)what are the safety measures to be taken before disconnecting motor for rewinding. 10)whats is the synchronous speed in rpm of typical 4pole 50hz motor? 11)whats is the formula for kw, ohm's law 12)if a 3phase motor is rated 3kw,415vac,what is it's rated ampere?

1369


hi , i have 150 kw loud and we need 50 m cabil,i want to know wich size cabil we use. thanks

1653