Answer Posted / rites
diagram is simple if u can imagine
3 phases are connected to incoming side
output 3 phases are connected to motor (motor in delta)
in each phase there are antiparallel connected thyristors.
all these thyristors firing angle is slowly changed to make
full voltage available to the output.
so what softstarter is doing applying gradually increasing
voltage up to rated to motor.
there is no control over frequency or current.
Typically take 5 to 20 seconds to ramp up.
| Is This Answer Correct ? | 8 Yes | 1 No |
Post New Answer View All Answers
What are dcs and plc?
I HAVE A 50A MCCB AS PER DESIGN LINE WIRE CONNECT UPWORD SIDE AND LOAD IS CONNECTED TO DOWNWARD SIDE TO THE MCCB.IF NOW ANY ONE CHANGE SUPPLY & LOAD(WISEVERSA) WHAT HAPPENS ? DOES MCCB OPERATION OR WORKING FUNCTION NORMAL IF YES THAN WHY THERE ARE MARKED LINE & LOAD ON MCCB.
State kirchoff voltage law?
What is meant by Load Encroachment in OHL Feeder Protection?
I have made a 3 phase thyristor full bridge rectifier. But at the moment it is working only for the half bridge operation. Both the half bridges are on operation separately but when i put it into full bridge operation the oscilloscope output is zero. I rechecked that the pulses are correct for each thyristor. what could be the possible reason for this?
what is the acceptable value of TAN DELTA and dissipation factor for 11kV, 1.75HP Motor?.
Why is tan-delta test and capacitor measurement done on alternator?
what is the voltages using in movie theaters??? why ??why not other??
Can clean earth cable be considered as low current cable
What is meant by turbo alternators?
how to copy from plc ge fanuc versamax series,all input and output, adress, and printout.
1.ZEBRA conductor(large size) 2.KUNDHA conductor( small size ) 3.panther conductor(very small ) 4.lepard conductor (very very small)
what are all types of cross section in AC cables?
How the over load setting for HT Motors calculated-provided in Numerical Relay
Explain what are inter-poles and why they are required in a dc machine.