Answer / sanjay kolambekar

Small Generator's are usually a low voltage or
highimpedance in case of HV generator with lower rating
hence the fault current will be less and equipments can
withstand the same. Where as in case of HV Generators with
larger ratings the voltage level is high or the impedance
is low hence the fault current is much higheer. In order to
limit the Fault current to the required level suitable
rating of resistance needs to be introduced between the
Generator neutral and Earth.

Answer / subash

in HV Generators with larger ratings the voltage level is
high or the impedance is low hence the fault current is
much higheer. In order to limit the Fault current to the
required level suitable rating of resistance needs to be
introduced between the Generator neutral and Earth and to
protect the insulation of the generator and getting heated
up while fault uccurs

Answer / k.prakashchandra

Electrical energy is directly is utilised in case of small
alternators whereas it is not so in HT generators.

What can a fresh(without experience) electrical engineer contribute to NTPC( Or any PSU company) growth?

3 Answers   NTPC,

---

11kv/0.433kv, 2 mva , transformer , for protection and metering how many CT/PT are required?

24 Answers   Bhilai,

---

What are the maximum and minimum ratings of MCB,MCCB,ACB,OCB,VCB and SF6 breakers?

2 Answers   ABB, SK E&C, Sodexo,

---

why any Elelctricity board insist not to change the buren of their metering CTs or PTs for metering purpose? as a example elect. board not accepted that any customer change their metering CT or PT core burden from 5VA to 15VA.. why?

1 Answers  

---

what is the function and use of cable differential protection relay?

0 Answers  

---

---

What is GD2(kg-m2) for Sq. cage ind. motor?

2 Answers   ABC, Essar, MMM,

---

with help of neat sketch explain principle of TIG welding process

0 Answers  

---

what is tha between elcb & rccb?

3 Answers   Essar,

---

I am a electrical engg. diploma holder,applied for junior engineer (electrical),Kolkata RRB. Have I to attend all electrical,mechanical&civil portion in written exam.???

0 Answers   RRB,

---

which phase is preferred for connecting 1 phase vt used for synchronizing OHL? WHY?

0 Answers   Siemens,

---

What are hrc fuses and where it is used?

0 Answers  

---

As a electrical engineer.. what are the basic norms should follow in transformer oil testing.. 1.What is the Electrode type? 2.How long time you will give for oil testing?

0 Answers   NAL,

---