Answer / badhehm

01)Over-current protection
02)Short Circuit Protection
03)Ground fault protection

when we catch any one of the phases with our both hands in air(without touching ground),our body acts as a conductor.is it correct.please clarrify it.

4 Answers  

---

( Re: WHAT SHOULD BE THE RATING OF MCCB FOR 415V,3Ph,50KVAR CAPACITOR BANK Answer # 1 The capacitor current would be kvar x 1000 / (415 x sqrt3). This would be 70a approx. The MCCB selected should have *atleast 1.4 times this current i.e. 1.4 x 70= 98. So you should choose at least 100 A mccb.) regarding to this answer,i would like to know why the current have to times 1.4 to get the right amphere for the mccb.hows the formula to get the 1.4??tq

2 Answers  

---

What is the lifetime of a Thyristor? Is there a recommended lifetime for thyristors after which they should be replaced?

0 Answers  

---

what is difference betwen genrator and alternator?

3 Answers   Tanfac,

---

I have 2 Nos of 2500kVA 33/0.415V cast resin transformers. How to decide on ampere rating of HT Panel? Also advise me how many panel RMG i have to consider whether 4 panel ok?

1 Answers  

---

what is the diffrence between dol and star delta strater? why star delta starter used instead of dol?

3 Answers  

---

What do you understand by avr?

0 Answers  

---

which element is neglected during fault calculation? a)resistance b)inductance c)capacitance d)reactance

4 Answers  

---

Which test will be more severe for VCB?

0 Answers   CPRI, Reliance,

---

how to commissioning the genset with amf panel?

0 Answers   Cummins,

---

why do we use 25kv supply for traction purpose?

0 Answers   Bhel,

---

why resistive load has unity power factor,inductive load lagging and capacitive load leading power factor?

3 Answers   OEG,

---