Answer / nagesh.patwari

Yes there's a thumb rule for cable size calculation for 1sqmm Aluminum cable can carry 2Amps and 1 Sqmm Copper wire can carry 4 Amps.

However the cable size increase above 100 Sqmm this thumb rule can not be considered. You need to refer the cable size calculation chart.

how is the testing of an REF relay? what are the test REF circuit having?

0 Answers   Siemens,

---

why synchronous motor is not self starting

5 Answers   Cenored,

---

One of the advantages of HRC fuse links is that they can be used to back up equipment with an inadequate rupture rating. briefly discuss what this means

1 Answers  

---

How can we measure earthing resistance test (Earth meggar) of Transformer neutral pit while in live condition?.

0 Answers  

---

what is differential relay in power transformer??

8 Answers  

---

---

how to generator maintenance (A Check, B check,Etc)

0 Answers   Cummins, HCL,

---

why do we connect voltmeter in parallel,why not in series,and why do we connect ammeter in series why not in paprallel...

4 Answers  

---

for 750 kw LT load what will be the ht kva

0 Answers   Sterling Tools,

---

why all selected supply voltages are multiple of 11.i.e440,11 kv,33 kv,66 kv,110 kv etc

6 Answers   Suzlon, TCS,

---

In a 11Kv/433Volt Delt-star step down transformer one one line(Line-B) of HT site is open & earthed on DP structur. What will be the voltage on LT side R-Y, Y-B,B-R and R-N, Y- N & B-N?. Please help to understand the problem with examples. Arvind , Jaipur.

1 Answers  

---

what is the relation between size of the anteena and wavelenghth of radiated wave

0 Answers  

---

dear all, How do i increase UPS (1000VA)backup time ? i have connected 2 12v wold you please 120 aH battery externally. ups charge the lead acid battery only 12.7 volt. backup time only 10.00 minuts and gose off. can any one of you help me?

1 Answers   Technomax, ups,

---