Interested to Buy Any Domain ? << Click Here >> for more details...
what is the function of commutator in dc motor?
- 52 Answers
- 180161 Views
- Aviation, HP, Raj Construction, TCE, University Exams, I also Faced
- E-Mail Answers
Answer Posted / siva.e
A commutator consist of atleest three segments.
In dc motors we supply dc to the armature.The function of
the commutator is to make the direct current to reversal
current due to this reversal current motor torque is high.
| Is This Answer Correct ? | 1 Yes | 1 No |
Post New Answer View All Answers
Whether power factor should be high or low? Why?
what is the importance of earthing system on the generators big capacity and small?
what is the difference between single ratio, multiple core and multiple ratio, multiple core ? please explain.
In EDO ACBs what is a purpose of closing coil and motor, what is the operation of these devices are they inetconnected. means if we give supply to motor and by BCS we charge Closing coil,what exact is operation is and how it charge a spring of ACB. Sir if anybody has an wiring diagram please send me the link to operate and EDO breaker.
what is fault level of power system ?
How to convert a two phase power into a three phase power in induction machine?
explain safety measures in alternator?
what is mean by dual digital protection in the relay field?
What is the temperature PROFILE OF A FLUID W. R. T. Distance from a sphere to which it is IN CONTACT which is at constant temp.?
Batteries. What is the difference between Lead and Nickel batteries ?
Why mostly the HV side of transformer has Delta?
5- What is the task (function) of the excitation and isolation transformers in power plant? 6- What is the task (function) of LCI (A), LCI (B) and LCI (COS) in power plant? : LCI (A) and LCI(B) are load commutating inverter for generator turbine starting. , LCI (COS) is load commutating inverter change over switch
If I want to connect a capacitor bank on the HT side of a 11kV/415V, 3 phase delta-star distribution transformer to supply Reactive power to it..what practical specifications of a Capacitor bank that can i've??please reply..
When we use air circuit breaker, it has O/L protection ,time delay SC protection, Instataneous SC protection & ground fault protection. They all have some setting range. But what is the suitable/allowable setting for the above protection which will be safe for the equipment? For example-O/L protection setting have a range of (0.4,0.45,0.5,0.55,0.6,0.65,0.7,0.8,0.9,1.0)xIn Time delay SC protection have a range of (1.25,1.5,2,3,4,6,8,10,12)xIn Time delay setting is 0.02,0.1,0.2,0.3,0.4 Instataneous setting is fixed to 20xIn Gound fault setting is given 100A,300A,600A,900A,1200A This setting are for 2500A ACB. So what will be the basic allowable setting for the above protection? is there any formulae to calculate this<
What is a Phase shift meter? Where can I get one?
