Answer / dhedhipya

Large power fuses use High Rupture Capacity fuse of fusible elements made of silver, copper or tin to provide stable and predictable performance. High voltage expulsion fuses surround the fusible link with gas-evolving substances, such as boric acid. When the fuse blows, heat from the arc causes the boric acid to evolve large volumes of gases. The associated high pressure and cooling gases rapidly extinguish the resulting arc. The hot gases are then explosively expelled out of the end(s) of the fuse. Other special High Rupturing Capacity (HRC) fuses surround one or more parallel connected fusible links with an energy absorbing material, typically silicon dioxide sand. When the fusible link blows, the sand absorbs energy from the arc, rapidly extinguishing it, creating an artificial fulgurite in the process.

Answer / c.mahadevan

high rupturing capacity fuse(it is time delay
characteristics and arc arresting and blost)

Answer / p

h.r.c fuse(high rupturing capacity)device is used as a back
up for over load relay .

Answer / shivaraj

high rupturing capacityfuse

Answer / paul

its a high rupture capacity fuse, the main reason you would
use this is because it can distinguish between high start
up current (from say a motor starting) and short circuit
current

Answer / m.vijaya kumar,cheyyar

high rupture capacity

Answer / naseeh

it is a high rapturing capacity cartridge type of fuse.
the low and uncertain breaking capacity of semienclosed
fuse is overcome by hrc fuse

Answer / duru emmanuel

H.R.C stands for high rupture capacity.This type of fuse is
a catridge type of fuse mounted in shrouded fuse holders.

Answer / hvk

highrupuring capacity fuse,inverce current characteristic to protect systeam from overload,with good arc quenching.for both lt and ht systeam

Answer / s.karthik

HRC fuse link is a very common, simple and effective
electrical protection device against over load and short
circuit current. It is so simple device that even an
un-skilled person can handle it.

What is the constructional difference between ceiling fan and table fan

2 Answers  

7- What is the Dissipation Factor and the difference between it and Insulation Resistance Test? 8- What is the task (function) of DC and AC reactors in power plant? 9- What is the task (function) of (open delta with earthed) in some types in transformers? 10- What is the base of the selection of the vector group in transformers? 11- What is the zig-zag transformer and its function by drawing in large detail? 12- What is the polarity ? 13- Why we make short between phase(R) in high side and phase (r) in low side in vector group test? Where High Side ( R ,S and T ) and Low Side ( r ,s and t ). 14- What are the time on delay and time off delay? 15- What is the vector group? 15- What is the task (function) of different types of vector group such as Dyn11 , Dd0 , YNd1,……..,?

0 Answers  

In explosive and polluted environments which type of motors do we use?

3 Answers   NTPC,

1-What is the difference between absorption factor and polarization factor in insulation resistance test in transformers? and why we inject until ten minutes to get polarization factor?

1 Answers  

why can not run two different phase circuit in to the same conduite

1 Answers  

What is the difference between MCCB and MCB ?

4 Answers   Siemens,

how to calculate the KVAr for an motor for improving the PF

3 Answers  

Why can't we parallel Voltage transformer secondary circuits?

0 Answers  

Explain the Term in CT Name Plate – Class: 5P10

6 Answers   Jindal, SRES,

What do you mean by boost voltage in case of battery charger?

3 Answers   MahaGenco,

Differene between KVA and KW.

6 Answers   Bharti,

A 150KW 440V motor is need to replace in the field instead of faulty one. what are the main parameter should I need to check?

1 Answers