Answer / sajin

It consist of an isolator and a fuse. When a fault comes the fuse will break. The switch can be used for replacing it. For any maintanance in the electrical installations we can use the switch for isolating the supply

Answer / ptha

Switch disconnectoe Fuse unit

Answer / lal kesh yadfav

SFU switch fuse unit . in sfu there are many protective
devices known as switch,fuse,contactor,relay<bmr> local
remot switch ,in sfu we set current rating for protection
of load

Answer / suresh

sfu-switch fuse unit.two part in sfu,one is base unit and
anthere one is thee fuses. this switchgear most useful for
lighting,welding purpose.you have not used in motor
application any one of the fuse bollown motor has runing in
two phase.

Answer / suresh

how much amp rating?

Answer / hemal

what is the price of sfu ?

15hp,380v,31amp,3-ph submersible motor run at 250v what is The temperature rise of submersible motor

1 Answers  

i have a 4 Mva transformer 34.5 kv / 480-277 v and i used 2 parallel 3200 amp bus duct for the secondary feeder using 3 ply of bus bar ( 3/8" x 5" ) as a common where the flexible link terminated and 6300 amps breaker for the main, the lower bus duct reaches 70 degrees and the upper bus duct reaches 55 degrees when i used thermal scanner. why the temperature is not balance when the load reaches 3600 amps.

0 Answers   SCM,

how a resistor resists to flow the current?how an inductor oppses the sudden change in current?how a capacitor opposes a DC voltage.

0 Answers   Hindustan Unilever Limited,

What is the difference between CT for protection and Ct for metering?

16 Answers   BirlaSoft,

what is difference between co-generation and captive power plant?

3 Answers   TATA,

why DC is not generated instead of AC?

4 Answers  

why surge suppressor in vaccum circuit breaker and it is only in motor feeder why not in tranformer feeder?no surge suppresor in ocb in motor feeder?

1 Answers   IOCL,

what is the earthing condition between earth & neutral.

6 Answers   ABB,

what is LDR used in street light

2 Answers   Cipla, Ram Infotech, Wipro,

what should be the acceptrd value of winding resistance for 2.5MVA transformer

0 Answers  

battery dis charge condition long time condtion?

1 Answers  

at work i have a genertor/alternater what is the easyest way to work out if it is dc or ac?

0 Answers