What is basic difference between Soft Starters And VFD
drives?
Answer Posted / raju
i think VFDs are next version of soft starters. In VFD we
can varry the speed from zero RPM to Full load RPM. and
come back from Full load RPM to zero speed very smoothly.
But in Soft starters starting will be smoothly but after
reaching the full load speed the Soft starter shall be by
passed and soft starter cannot be controlled the speed.
Cost wise VFD is more costlier than VFD. In reliability
point of vied VFD is better
Is This Answer Correct ? | 110 Yes | 24 No |
Post New Answer View All Answers
what are the tests comes under the type test, what tests comes under routine tests.
What happen when change order of CT in GIS feeder?
how test transfomer(3 phase75kva) by megger
What is difference between mcb and mccb.
what is the vvvf in the dumbwaiter?? or lift. what is the actual process?/
What are the different types of hydro schemes?
A mass of 1200g is accelerated at 200 cm/s2by a force. The value of the force required is:(a) 2.4N(b) 2400N(c) 240 kN(d) 0.24N
How to Calculate Current Rating of SDFU (Switch Disconnector Fuse unit) for Protectionof Capacitor Bank connected to Busbar of 800Amp,in LV side of 11/0.433KV, 250KVA Transformer?
what are factors comes under relay setting (distance relay 7sa52) under OPEN DELTA VTs connection??
please give me all the Alarm .Trip ,Safety Relays & Conditions of Diesel-generators mail me on ashokbabunhce@gmail.com
From past few months I am getting lagging pf even though sufficient capacitors used in circuit. Where is the problem pls answer
working principle of oil startar
what is the Connected Load (kW) or Contract Demand (kVA)of mahindra nasik plant??
what is feeder bay?
Formulae for calculating the transmission line losses for different voltage levels