Answer / prabhu

dc machines is not prefer to use at place where flamming
gases are coming out because it requires brushes and
commutator arrangements. it causes sparking during the
operations.
so we can go for Induction motors,preferable squrrle cage
induction motor are used. there are two types of IM.there
are i]slip ring IM ii]squrrle cage IM.
in the first one slip ring IM, it also not preferable
beacuse of slip ring arrangements. it also cause sparking.
second one squrrle cage is completely safe there is no
slipring arrangements.

Answer / vsr

yah the above said is right. go for squirrel cage induction
motor. but choose FLP type.

Answer / dpm

Flameproof type 3 phase squirrel cage induction motor ,
because it is widely used in gas industries due to its
rhobustness.

Answer / nik

Squirrel cage IM is the preferred choice, but if only a dc
supply is available then BLDC can be used.

Answer / x man

Explosion proof,increased safety Machines can be used for
these knid of applicaiton.
the explosion proof prevents the spark or ignition
happening inside to spread out
the increased safety protects the machince from the
environmental problems

Answer / perlsdelsur

Firth of all you may have to do a proper harzadous clacification area to determine if the place where you are going to install your motor is DIV 1, 2 or other (done by chemical certificated enginner)then after you must to select the suitable motor for that area operation, motor for harzadous manufacturers can give the information you need but you have to carefully to choice the correct motor because this involve to great riisk to choise a rong motor

Bye

why field winding is placed on rotor winding not on stator winding in case of synchronous machine?

13 Answers   HAL, TATA,

what is form factor

2 Answers  

What the full form of KVARs

2 Answers   Siyaram,

R u say ,that is there is any flux in your room.

1 Answers  

Define filter?

0 Answers  

With a phasor diagram show the effect of increasing the field current of a generator supplying a constant real power and connected to a grid system.

0 Answers   VECL,

WHERE IS THE LIGHTING ARRESTER SHOULD BE PLACED IN DISTRIBUTION LINES?

26 Answers   APTransco, BARC,

size of condotory fron voltage level

0 Answers  

What happens to the synchronous generator when reverse power is given to it?

1 Answers  

What happen if we give resistance to the armatuure of a dc motor?a

1 Answers  

what is ac servomotor??

7 Answers  

why battery dc voltage become Half when we check with respect to ground for example 120volts + and - terminals and when we check + terminal with Earth thats 60volts why 60volts same result on 24Volts and with ground 12Volts only expert answer that thanks we can not ground the battery.

2 Answers   Etimaad,