Answer / excellenceokoli

There are many causes
of low voltages. Some of
them are:
1). Overloading of a
particular phase.
2). Cable size.
3). Phase failure
4). Rust and worn out
cables.
5). Loose connections.
6). Neutral failure.

Answer / murali

* We using many indutive loads(FANS,ANY MOTORS)
so powerfactor is below 0.4 (leading current in voltage)
so produce voltage drops
* Using capacitors in parallel to the loads
improve the powerfactor
* loads are properly divided reduce the voltage drops

Answer / anand

Thhe probable reasons of low volage in houses are:
a)One of the phase on HT syde of transformer disconnected
because of breaking of jumper/HT fuse
b) excessive load on that particulr phase to which house is
conected
c)lower size of LT cable/ OH conductor selection resulting
in high voltage drop

Answer / renyrjn

i think inductive load might be the right answer

Answer / sakira

electricity is nothing but the energy generated at station.
when it is transfer to home it goes from stage to stage.
the potential difference is decreasing at every stage to
maintain the current going in back to ground.
1) Possible reason is poor grounding OR NEUTRAL.
2) In the area use of high power devices(floor mile, lath
machine)
3)low current capacity cable wiring in the house.

now a days electricity is stable at various places in the
villages it is still high or low voltage.
use the stabilizer (servo stabilizer) use some branded one
as even local one is cheaper they not use the protection or
the radition protection.

Ultimatly good design and manufacturing the with good
components are different.

Answer / ravi kumar

Excessive load of a conductor beyond its rated capacity
causes voltage drop at other end

Answer / sanjeet swarnakar

due to inductive load
power factor decrease

so voltage regulation is required to make up the loss of
voltage

please tell me ur email ID
my email ID is sanjeet.swarnakar@gmail.com

Answer / rk sharma

Inadeqately distribution of load in LT side.

Answer / arif pathan

There are many reason for using Low voltage(415V,3ph)in
Houses:
1) Due to use of 415v at LV side of tranformer the Fualt
level & short cicuit current will be less compare to HV
side , hence you will require small size of cables upto
your main distribution panel.
2) If your short circuit(kA)& fault Level(kVA/MVA)is less
you reqire small rating of CB or SFU for protection.
3) Due to 415V (L-L) your operating devices, equipment can
run on 230V (P-L) For which they are designed.

Answer / dk

1--h.t. side fuse of transfarmar
is disconnected
2--high inductive reactance equipment

What is the tests required for a 132 kV, 400 kV , 765 kV for a Circuit Breaker and Power Transformer before commissioning ?

0 Answers   Eprosys Engineering Consultants,

how can i get the formula to find out the cable size if i know the load of main fuse protection.

0 Answers  

How will change the frequency in distribution side?

0 Answers  

What are the voltages at which electrical energy is transmitted

7 Answers   KSEB,

why is a power transformer used only occasionally?it is used to step up at generating stations?and that needs to be done all day long !!!!!!!

0 Answers  

Why air gap in rotating machines should be small?

3 Answers  

what are adantages of OC and SC test over the load test?

5 Answers  

How npn and pnp transistor works

0 Answers  

Why have to use copper cable for local isolator to motor ?

0 Answers  

Can we use 1.1x 2 split air-conditioning at a same time in 2kw power loadar

1 Answers  

i asked a funny question in Electrical ohms law V=IR in const temp voltage is directly proportional to current Power p=VI cos@ in that formula Voltage is indirectly proportional to current Try to give me the fact what is happening in Electrical.. contact Thanigai_1984@yahoo.co.in

3 Answers  

HT motors are generally connected in star, what will be the effect if we connect HT motor in Delta?

6 Answers   Equate, Ion Exchange,