Answer / k.prakashchandra

Over frequency relay is for gen and over speed relay is for
turbine.They are normally set at +/- 3 % and 15 % respectively.

what is unit of inductance

12 Answers   Bhel, Bosch, OSML, Vijai Electricals, Voltage,

---

why are the likely reasons for bochholz & pressure relays oprate due to a internal fault but not differential relay ?

2 Answers  

---

What is the differance between transformer neutral solidly earthed and transformer neutral earthed through resistor?

1 Answers   L&T,

---

In a transformer ,when voltage decreases current increases. but this is a violation of oms law.why?

15 Answers  

---

How to choose size of the cable w.r.to current carrying capacity ...

0 Answers   L&T, Saams,

---

1.25 kg of hydrogen are burnt with stiochiometric air, the mass of air in kg required is

0 Answers   Caterpillar,

---

In a Dyn11 transformer, how are the 3 windings of the delta connected? Assume that R1-R2, Y1-Y2, B1-B2 are the 3 windings on the HV side.

3 Answers  

---

if the load is 80 amp for main fuse and 100 amp for breaker so how can we calculate the cable size (cooper ) .

0 Answers   Bhel,

---

how to calculate the breaking capacity of different breakers.

0 Answers   UltraTech,

---

why transformers are put with supply for 24 hours before giving supplying to a locality?

2 Answers  

---

Load transfer in 11kv double busbar switchgear - operation.

0 Answers   KSEB, L&T, Siemens,

---

I had applied for JE in PSEB, Can you pls send me the Question bank for related to my field

0 Answers  

---