Answer / m.gopinath

SDF=Switch Disconnctor Fuse Unit

Answer / shy11am

S.D.F Stand for 'SWITCH Disconnector Fuse' Unit with
Tripple pole neutral(R,Y,B,N).

it provide more safety compare to general fuse unit.

Answer / harish shukla

S.D.F. stands for SWITCH Disconnector Fuse Unit

Answer / arif mohiuddin

SDF Stands for switch fuse disconnector.

Answer / k.p.sharma

SDF=Switch Disconnctor Fuse Unit
SFU=Switch Fuse Unit

Answer / diwana

S.D.F = SWITCH Dis-connector Fuse

what is creepage distance

2 Answers  

3Cx240 & 3Cx300 sqmm Al. cable from lv side. What is the calculation for this cable??

0 Answers  

I want to know what must the CT ratio be on a load of 300A is a 3PH nutral to earh installation?

4 Answers  

thyristor controlled APFC panel design parameter?

0 Answers  

in small capacitor we use uf( micro farad) and in big quantity we used kvar. i want to know that in 1 kva how much will b uf(micru farad).

2 Answers  

In dc ckt. 24v or 110v, which one is more efficient and why?

0 Answers  

what's float charger and boost charger? why it's used?

2 Answers   APCPDCL, PTCL, Rolls Royce, Siemens,

what is full wave bridge?

4 Answers  

define B types and C types in MCB ?

3 Answers   Bhel,

suppose a fan is running with phase and neutral. if its neural is touched to body. then fan get stopped. if this fan is connected to phase and ground supply..then why it runs?

1 Answers  

In DC while we mention the voltage we are using -48V but in case of AC we mention only 230V not -230V, why we using -48V not 48V

2 Answers  

WHaT IS THE CONCEPT OF INDUCTION LAMPS IN MODERN LIGHTINGS, and HOW IT WORKS TO EMIT LIGHT ( AS NO ELECTRODES ARE PRESENT ) ?" COULD INDUCTION LAMPS CAUSE INTERFERENCE WITH COMUNICATIONS INTO A STORE USING INDUCTION LIGHTING ? WHAT IS THE BENEFIT OF USING THE LOW FREQENCY INDUCTION LAMP , VERSUS LED , AND VERSUS FLUORESCENT, AND VERSUS ANOTHER KIND OF LIGHTING . THANK yOU MOISES GUINDI

0 Answers