Answer Posted / mubeen
Voltage frequency can be changed by using of VFD ( variable
frequency drive ) which consist of SCR,Diode,etc.it can
make from zero to > 250 HZ.means can control the motor
speed or frequency of suppllied voltage.
Is This Answer Correct ? | 1 Yes | 0 No |
Post New Answer View All Answers
how can we understand that where we have to use ac or dc coil for solenoid valve and why?what is the different between coil of ac and dc explain please.
In what cases (circumstances)we should apply P controller, PD controller, PI controller & PID controller ?
please give me solution to rectify the emi(electromagnetic interference)
what is difference between isolation and ultra isolation transformer?, what is the method of testing ?
What are the applications of different multistage amplifiers?Plz also write advantages of these amplifiers? Thaaaaaaaaanx
Which type of questions well asked. ?
WHAT IS DOL STARTER? HOW IT WORK? GIVE ITS CONTROL AND POWER DIAGRAM .
WHY THE COLOR OF OUTDOOR TRANSFORMER IS BLUE ONLY???
Can we indroduce the principle of single phase induction mator to Transformer? i.e. by Producing rotating flux in the transformer.
2 v/500amp/hr to 1.80vpc at 20 degree celsious 2v/5ooamp/hr to 1.75 vpc at 77degree farren .this is the capacity of a battery .what is the meaning of this . can i get a detailed explenation
What are the transformer losses?
Is a direct shorth ciruit on a branch MCCB in a Low Voltage Switchboard a correct means of tesing the performance for discrimination?
which is the most advanced form of SF6 BREAKER?Can we use other gases to quench the arc?
How the over load setting for HT Motors calculated-provided in Numerical Relay
what is interfacing in computer studies?