How do u analyse protection fault when vcb tripping on load

0 Answers  

---

how to find under ground cable fault ??? if our cable size is 95*4 then what will load capacity with far mull

2 Answers   Imdad,

---

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,

---

power formula

1 Answers  

---

how do find power factor in practically and what it means?

3 Answers  

---

How we can defined theecopper cable size if we know the aluminium cable size?

0 Answers   Cummins,

---

how will we calculate the copper wire load..

0 Answers  

---

how to extend relay operating timing in 24V dc relay card (without using Timer )

0 Answers  

---

What is the Surge for 1.1 Phase Induction Motor(For Eg.1Hp) 2.3 Phase Induction Motor(For Eg.1Hp) 3.AirConditioner(For Eg 1Ton) 4.Refrigerator(For Eg 180Ltr or 160kW) 5.Induction Cooker 4. Ceiling Fan

0 Answers  

---

What is the different between conventional MCC and intelligent MCC? Common controller or controller for each bucket

0 Answers  

---

What is excitation in case of dc motor?

0 Answers  

---

how generator generates electricity?

1 Answers   Suzlon,

---