Answer / rohit bharadia

it will depends on construction of motor;
if field winding is in series with the armature winding
then it is like a universal motor and it will run as a
simple motor.;
but field winding is in parallel with the armature winding
then it will not run, but current will flow in winding due
to this heatting will produced and the motor/winding car
burn.

Answer / munissamy.p

ac supply power is p=vicos
dc supply power is p=vi
poer is unbalanced otherwise dc supply frequency is 0.

What is the max value of neutral current that can be allowed in system?

0 Answers  

---

how to check 3phase motor winding with help of multimeter?

2 Answers  

---

why DOL starter is use in induction motor as it is not reduce the starting torque

2 Answers   Maruti Suzuki,

---

Any one can explain if there is any harm from humming noise heard from air circuit breaker : we have 415 switch board having two incomers from transformers 3.3KV/415V , when bus coupler closed, and open one ACB incomer to work in one of the transformers, the current started hunting around 50 Amps, and heard humming noise from the air circuit breaker, although the load current was only 1200 amps while the ACB capacity is 2500 Amps, and the transformer 1600 KVA. The same didn't happen when taken the other transformer offline. Why this humming noise and current fluctuation? is there any implication or danger, bearing in mind that we just returned everything back to normal and stopped the maintenance of the transformer. Shall we go ahead and ignore this noise?

6 Answers  

---

what is the difference b/w circuit breakers and relays?

3 Answers  

---

Show formula which gives full load current 4.8 amps of a 3 HP motor and 27 amps of a 20 HP motor having 3 phase 460 volts, 0.8 Pf.

2 Answers  

---

What is the purpose of reactor in over head transmission line.Can you any explain it.

2 Answers   Dr Reddys, L&T, Reddy Labs,

---

if a 3phase motor runnig in star delta starter with full load of its,and its rated 15 amps.now we conneted over load thermal relay at its main contactor,here what will be our amps sittings?

3 Answers  

---

Where the ON LOAD TAP CHANGER is provided in the setp up transformer?

2 Answers  

---

What is the meaning of BUS?

20 Answers   CII, KLG Systel,

---

To test Transformer we give HT side 440V to see wheather that it is producing 17.6V on LT to verify Voltage ratio is correct or not but when we give the 440V voltage to LT side then what will happen to HT voltage ?

3 Answers   Aditya Birla,

---

how to size H.T & L.T Panel ?

0 Answers   Schneider,

---