Answer Posted / selvaraj
1. the filter capacitors that are used in rectifier portion
of the VFD helps in boosting the power factor of the
substation.
2. in a motor electrical energy is converted into
mechanical energy. ie.
electrical power = rt3VICOSINE ANGLE
mechanical power = 2*3.14*N*T
By using VFD variable TORQUE and variable SPEED can be
achieved.so by reducing the mechanical power electrical
power will also be reduced in the same ratio.
| Is This Answer Correct ? | 0 Yes | 3 No |
Post New Answer View All Answers
what shall be no load voltage of 132/33 kV transformer ? is it 33 kv of 34.5 kV
In AC if the direction of current keeps reversing every half cycle, how does it propogate through the transmission lines?
Electrical Engineering
what is the clear formula to calculate cable size for a load
1) What are your personal strength? 2) What are your personal areas of improvement? 3) What are your expectations from from a particular job? 4) what are your carrier objectives?
Explain about Leakage Test.
A ray hit a smooth regular surface at an angle of 20 from the normal. Calculate : 1. The angle btw the incident and reflection ray. 2. The angle of deviation.
What is the Basic Difference bitween Long Shunt Connection and Short Shunt Connection in DC Generator?
what is the range of maximum DOL and SDS can be use for pump and fan application
What is the formula for calculating the Instantaneous Short Circuit & overcurrent for any breaker
WHAT IS FAULT CAPACITY OF HT MOTOR TERMINAL BLOCK? ANY BODY HAVE ANSWER PLZ....POST IT.
Why we find the sensitivity for the CT's to check?
what is the defination of Cable database? What are the points are considered while preparing cable database? Is there any sample available for cable database?
before synchronizing an alternator,power factor is leading ,why?
what happen if the parallel generator phase angle shift by 1 degree in manual mode
