Answer / vitthalupare

length and cross sectional area of rated cable

Answer / ars326

also moisture and temperature

What is the major difference between cnc and plc. why cant we use plc instead of cnc

5 Answers  

---

what is meant by dielectric breakdown ? where we using HV test kit & what purpose?

3 Answers   ITC Infotech,

---

what to do with nuetral when Generators are running in parrellel

11 Answers   APTransco,

---

1. what is the power factor and whatis his losses 2. what is the working procedure of 51RNB AND 87 relay

3 Answers   ABB,

---

Why mostly conductor made by 7 nos wire?

2 Answers  

---

what is the diference beteween dedicated earthing & body earthing?

1 Answers  

---

Why the generating station rating is in KW though the rating of generators in KVA?

8 Answers   HAL,

---

What is the formula to calculate the rating of a three phase trnasformer

1 Answers  

---

1.what is surge 2.what is lightning 3.what is switching 4.difference between surge,lightning,switching used in power system 4.definition of surgearrestor,lightningarrestor 5.adv and disadv of surgearrestor,lightningarrestor 6.uses and purpose of surgearrestorand lightning arrestor 7.block dia of surge arrestor 8.blockdiagram of lightning arrestor 9.operation and working of surge arrestor and lightning arrestor 10.basic formula of surgearrestor and lightning arrestor 11.basic diagram of surge arrestor and lightning arrestor

1 Answers   Crompton Greaves, Framo, L&T,

---

what is the difference between analog and digital signal?

3 Answers  

---

what is earthed and inearthed cable or system?

1 Answers   CCCL, L&T,

---

Please clarify, 1. Is it required to lay two runs of GI wire along with Armoured LT cable if it is laid between one big mains (63Amps TPN SDF) to small main (32A TPN SDF) with proper glanding termination? 2. If the armoured cable with proper glanding is laid from DB to CNC machine, is it required to run two runs of body earthing to the Machine from DB? 3.If the armoured cable with proper glanding is laid from Substation to Hangar, distance is approx. 100 mtrs, is it required to do earthing at shop area though the primary termination at substation is earthed through gland.

0 Answers   HAL,

---