Interested to Buy Any Domain ? << Click Here >> for more details...
What are applications of Shunt release?
- 2 Answers
- 3339 Views
- Techno Electric and Engineering, I also Faced
- E-Mail Answers
Answer Posted / naveen joshi
Shunt Realese Used for Tripping in Breaker (manualy operated or relay operated).
| Is This Answer Correct ? | 3 Yes | 1 No |
Post New Answer View All Answers
When we use air circuit breaker, it has O/L protection ,time delay SC protection, Instataneous SC protection & ground fault protection. They all have some setting range. But what is the suitable/allowable setting for the above protection which will be safe for the equipment? For example-O/L protection setting have a range of (0.4,0.45,0.5,0.55,0.6,0.65,0.7,0.8,0.9,1.0)xIn Time delay SC protection have a range of (1.25,1.5,2,3,4,6,8,10,12)xIn Time delay setting is 0.02,0.1,0.2,0.3,0.4 Instataneous setting is fixed to 20xIn Gound fault setting is given 100A,300A,600A,900A,1200A This setting are for 2500A ACB. So what will be the basic allowable setting for the above protection? is there any formulae to calculate this<
from which subjects most of the technical que will b asked for hpcl(electrical).pls help me
what is the use of the puls transformer in UPS & how it works???????????
H.t motor 6600 volt to same motor lt supply 440volt supply applyed to h.t motor to effect....
Why have to use copper cable for local isolator to motor ?
what happen when increase or decrease size of lamp,light.glass.
The SFC of an engine is 0.25 kg/kW hr. when the fuel used has a calorific value of 36000 kJ/kg. the thermal efficiency of the engine is
what is the ground fault relay,which purpose it will be use,clearly tell me plz
in dc suppy frequency is zero why? if dc frequency is zero how to exist dc transients and ac transients
draw the restricted earth fault protection circuit install on power transformer and identify its parameters and draw C/C curve of it
What are the different sign conventions used in electric circuits?
what is per unit calculation?looking for simple and strong explanation thk u
What should be the percentage increase in length of the dead end clamp for bus bar conductor (Hawthorn) after hydraulic pressing and what should be the applied pressure?
what is the difference between oil surge relay and buchholz relay.
In a large office how do we calculate required number of light fittings, assuming fittings are 4x18W or 2x36W fluorescent fitting ?
