What is the difference between AC Drives and DC Drives?
Answer Posted / rvg.msceb
DC drives performing the following functions:
1.speed control of DC motors
2.Breaking by applying resistance at rotor.
3.uses converter and chopper.
AC drives performing the following functions:
1.speed control of AC motors
2.Breaking/accelerating by changing the frequency of the
supply.
3.uses converter and inverter.
| Is This Answer Correct ? | 53 Yes | 19 No |
Post New Answer View All Answers
Dear Mr B C pal...Can you plz. put some light on principle of operation of Z-Ct in conjunction to its use with 1Cx1000Sqmm HT Cables & Directional Ground Fault / Over Voltage Relays...Regd..Parag v K 9899115632
Pl. give me checklist for installation & commissioning of machine tool.
How to select, design,size & calculate for 11 KV/33KV/66KV/132KV/220 KV/440 KV circuit breaker for HT side of transformer protection/HT distribution protection?
difine electrical ballast in HPSVL
Is it required to do earthing in 2nd shop if earthed armoured cable is laid from 1st shop ?
What conditions are required for transformer to operate at low frequencies ?
what is the difference between electrical and electronic choke?
can we do the star delta connection of capacitor for 3- phase motor starter.
the typical output of a solar cell is........
How to synchoronize the generator (with gcb,GT) to grid????? ????? from Grid iam getting power (rated 400kv/20kv) through GT and its goes to UAT.,,ST.,, now my generator(rated 20kv ) ready.,, now iam closing my GCB.,, in GT iam suddenly giving 20kv on that Gt.,, what will happend
Draw a circuit diagram in which if button is open we can use socket and bulb as a series test circit and if button is close than simple we can use socket as any load purpose.
-What shall be short circuit current of LV switchgear for a 1000 kva, 11.415kv, 3 phase tranformer with 5% reactance.
What are the types of feedback oscillators?
What is the difference between the transmission line and distribution line?
can any one tell in easy method for circulating current ??