Is there any Flood lighting system which produces more light (More power consumption 1000W,400W etc.,), white light and restart immediately after power restoration ?

1 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<

0 Answers   Lupin,

---

Alternating voltage and current is which type of quantities?

1 Answers  

---

_____hamari_____tumhari____ne dil ki_____utari. _____ne ____ dekha ashe ___ doshti ko lage na hamari.Complete pajal

1 Answers   Microfine Industries,

---

how instantanious short circuit current is calculated ? its formula.

0 Answers   Crompton Greaves,

---

In MEP Services what are parts of STP and what are there function?

0 Answers   Tenon,

---

State Maximum Power Transfer theorem.

0 Answers   ABB,

---

hi i will D.E.E.E.is completed pls send rrb diploma old qustion papaer sent in my e mail. i.d.

0 Answers   IIT,

---

what do you understand by dressing a HT/LT pole

1 Answers   Federal Polytechnic Nekede,

---

WHAT HAPPEN IF GENERATOR TURBINE IF TRIP?

7 Answers   CEERI,

---

15 kva dg set single phase takes 63amp( approximate) while same rating 15kva three phase takes 35amp approximate. why ? and what will be per phase current for 15 kva

2 Answers   TVI,

---

what is the application of dynamic Breaking resistor in inverter ? & How it works ?

2 Answers  

---