Answer Posted / mithun patidar

ac drive is used to contrrol ac out put and dc is use to
control dc output

What is the Designing & Selection Procedure for a DG/Transormer of rated capacity?

2122

---

how to decide no of electrodes for 1600A LT Main incomer panel

1593

---

Why you are switching off arc protection mcb when you are taking shutdown for lv board.

1637

---

for a 500 KVA connected load, I calculated 30% of capactor for power correction. Even after using 225 KVR capactor PF is not improving. What could be reason for low Phase correction factor?

1914

---

Which type of a.c motor is used in the fan (ceiling fan, exhaust fan, pedestal fan, bracket fan etc) which are find in the houses ?

982

---

We have 250 KW x 2 motors, which are load from 25% to 100% varying load in every minute , so how can we compansate the power factor. pl give your opinions on the above subject.

1820

---

What are the main advantages of generalized error co-efficients?

1112

---

Define filter?

1060

---

is it possible to say motor horsepower number without seeing name plate(when name plate damaged)

2026

---

Give the expression for the frequency of oscillations in an op-amp sine wave oscillator?

1046

---

How much kv gas generator is needed to run 2 hp and 1 hp airconditioners, plus a refrigerator and 4 Tvs

5084

---

What tests should i carry over on a newly rewinded DC Generator with voltage rating of 38 volts and current rating of 350 amps, to certify that the machine is OK?

1826

---

how to find the torque of the single phase synchronous motor by doing an experiment

1892

---

ii) A shunt motor supplied at 230V, runs at 900 rpm when the current is 30A. The resistance of the armature is 0.4 ohms. Calculate the resistance required in series with the armature to reduce the speed to 600 rpm, assuming that the armature current is then 20A. [12]

2285

---

what is the method of earthing of a transformer using electrodes?

2202

---