Answer / ahatesham

In urban area total load is large so there is a 3-phase
system from which all 1-phase consumers as well as 3-phase
L.T. Consumers are feeded.
But in rural area total load is low so we can feed all the
consumers by running only a 1-phase line also.
SO IN RURAL AREA 1-phase 230V line runs which feeds all the
consumers , is known as single phasing.

Answer / preitee ranjan

Generally we hv a rule that phase is directly prop. to
operating voltage(efficiency).And we also need low voltage
operation as possible for safety purpose.so for ssi(small
scale industry,house hold)440v/230v is requierd,which can be
implimented using single n multiple phases.but single phase
is efficient(conductor size,no pf conductor)etc.

Answer / k.prakashchandra

To reduce the peak load on the system, single phase supply
is made available in rural areas for single phase domestic
and commercial use only

power requirement of an l.e.d?

2 Answers  

---

If 22 KV HT line, Current transformer is 25/5 then how to calculate multiplying factor.

0 Answers  

---

star delta advantage and disadvantage?

2 Answers  

---

Our Alternator nameplate specifies a power factor of 0.8. When the Alternator is on light load, the bus bar voltage rises to 11240 volts, whereas the standard value is 10500 volts. Is it ok to increase the power factor to 0.85 or 0.9. I am afraid because the power factor on the name plate is only 0.8 ?

3 Answers   Escube,

---

What is meant by Active and reactive power?

8 Answers   Micron Electricals, SVIT,

---

---

Why cant we connect the motor output to generator and then generator output to motor ?

4 Answers  

---

can anyone explain the star-delta motor control wiring ,which wire go where and how they operate?

0 Answers  

---

In Round type three phase transformer why the LV side is inner part and HV outer part in the design of transformer? why they cant be opposite?

2 Answers  

---

The iron loss in a 100kva transformer is 1 kw and full load copper losses are 2 kw, then what is maximum efficiency occure at a load?

3 Answers   MPSC,

---

what is the electricity

3 Answers  

---

What is mean by ideal infinite bus? Why it is required to consider in fault short circuit calculations?

1 Answers  

---

Can anyone please give me the parameters , formula needed to calculate the circuit breakers for building services.Thanks

0 Answers   Bhel,

---