Answer / sachin

As per our system, Vtg between two phases is 415V.so bulb
glows brightly for sometimes after that it may be blow-out
due to high vtg.
The reason, bulbs are specially designed for 230V AC.

Answer / raja

if the frequency between the two phases are differ then
the bulb is blinking according to frequency difference(f1-
f2)

Answer / mahavir jagdev

Actuallt it has multiple answers as the bulb and the voltage supply specifications are not given

I am assuming it to be a normal domestic bulb of 220 volts connected to a 415 v delta supply. The phase to phase voltage is 415v and the bulb will blast.

Answer / kuldeep

as given above answer the bulb is blast

Answer / tstar

If it is like delta connected for line to line and no neutral then, one side of delta connected bulb will glow brighter,the other two sides will go dimmer, probably one side of it won't glow.

Answer / robin

Nothing would happen if there

Why Diffrential and Ref relays are used together although Diffrential relay can protect Pri and Sec of Transformer

1 Answers   Qatar Gas,

hi , i have 150 kw loud and we need 50 m cabil,i want to know wich size cabil we use. thanks

0 Answers  

Why voltmeter is not connected in seris & ammeter connected in parallel ?

5 Answers  

using n1*n2 which type transformer is made; where n1 is primary turn and n2 is secondery turn

1 Answers   JSW,

what is the difference between earth and neutral.

9 Answers   DLF,

can we ran equipment up to 10kw between phase to grounding/ earthing. beside above can we use grounding instead of neutral. .

1 Answers   TNEB Tamil Nadu Electricity Board,

Explain the propagation of harmonics in the network and influence of phase angle of harmonics.

0 Answers  

ple send to the how to improve the efficiency & economical to the thermal power plant

1 Answers  

How to find Cable size? Caterpillar generator produce (Two generators) 127*2=254 amp at 11 kv . What would be the cable size (XLPE) to supply 256 amp at 11 kv? Air or surrounding Temperature is 32 degree C. Cable will go under ground at 2.5 feet depth. Group Rating Factors is 3 cables. Clearance between cables is 7 cm. Soil Temperature (Ambient) 28o C Soil Thermal Resistivity is 1.2 K.m/W I would like to use 3 separate single core instead of using 3 core cable. Some says I should use three separate single core 120RM cables. Some says 70RM .some says 95. I m totally confused. Is there ant specific rule to determine cable size? What would be the LT cable size to flow 500 Amp current? Ifte My e mail address is ifte13@yahoo.com Anyone please send me the answer to my e mail address, i will be very glad.

1 Answers  

Comparing to AC transmission, corona & R in DC transmission is……. a) lower b) higher c) same

3 Answers  

What is reactive power and where it is used.

0 Answers  

which is the best, A/C DRIVES or D/C DRIVES for cranes,...... ...and why......?

2 Answers   Alstom,