Answer Posted / kumarabharathi
Soft starters nothing but thyristor control starters,this
different form VFD drives,All VFD drives are soft starters
but All soft starters are not Drives,In VFD we can adjust
the speed,Torque & master-slave operation,But in soft
starters is used only to reduse starting current of motor
And for soft starting of motors.
| Is This Answer Correct ? | 16 Yes | 7 No |
Post New Answer View All Answers
Safety of dry type transformer
in the directional overcurrent and earthfault protection,normally we are setting the angle 45 deg lead for phase fault overcurrent and -45 deg lead for earthfault fro forward direction.but both the fault are operating on the same angle region only.why?how the relay will response?
how does the rotating m.m.f is produced in the 3-phase induction motor and how the poles are created in 3-phase induction motor ?
what is the excess air in furnace
What are operating procudures & Safety precautions to be observed while operating OLTC in manual mode ?
Application Comparison between 22KV (UE)and 33KV (E) system. Are we allowed to use 33KV (E) cable in lieu of 22KV (UE) cable. What are the technical disadvantages.
will 1050kva DG set withstand for back charge of 16MVA transformer
What is difference and reason b/w -48V BTS system and 24 V BTS system. Plzzzzzzzzz tel me.
A low wet bulb temperature indicates
How to calculate energy stored in a capacitance
plz send me Bhel, Mahagenco, sbi previous exam paper for electrical engineer on my email-id kambali_smita@yahoo.co.in
hi every body i am master student in control engineering and my project is slip control in trains i assumed a Dc motore as traction motor but i don't have characteristics of this kind of motor that is used in train. i want from every body if he or she has the characteristics or information about Dc motor that is used in train give me those information or technical characteristics .
what is calculation mathod/formaulla for deciding Size of busbar (Copper/ aluminum)for L.T. panel on Various Fault level like 50kA,25kA,10kA
What is difference between safe PLC and normal PLC
what is transformor oil gread