Answer / anonymous

no frequency for dc. ie f=0

Answer / fazul

voltage is constant for dc supply.
hence current is also constant for dc supply.
hence the frequency of dc supply is zero.

Answer / mdmohsinayaz

Freruency is zero in dc F=0

Answer / dc

For DC the frequency is = 0
cause in the sinusoidal curve there is only one sequence.

What is function of condenser in fan?

3 Answers  

---

what is the meaning of improving the power factor (give technical ans not therotical)

2 Answers  

---

What will happen if the armature resistance is in minimum position and the field resistance is in maximum position while starting the motor

0 Answers   Viva,

---

What is Residual Voltage & Residual Current?

4 Answers  

---

What are the components connected in between the power supply coming from an electric pole to HT & LT Panels in a large commercial building or how the power supply connected from Electric pole to Transformer & then to the HT & LT panels of a building? Please send me answers via mail, my id is yogiagarwal@gmail.com. If possible, please give a line diagram.

0 Answers   Ranbaxy,

---

Why we use neutral cable just half from phase cable.Tell me briefly,please.

4 Answers  

---

What is Phase to Phase clearance for 800V System Operating Voltage as per IEC61439

0 Answers  

---

We have .ht motor which is 60Hz.we run on 50Hz.so that it's speed reduce but we had one prob.that motor winding temp increase up to 135 deg.we want reduce this temp.what to do?we arrange ext.cooling fan but not much effect.we want reduce this temp. Inhouse without affecting much.cost. also don't want reWINDING OF MOTOR?

3 Answers  

---

What are the earth resistance Standards of 66kv sub stations according to indian norms.

2 Answers  

---

What is the basic working principle of Tri vector meter?

5 Answers   TCS,

---

What is steady state response?

0 Answers  

---

what is the function of Choke?

9 Answers   Airport Electrical, Cummins, Tamco,

---