Answer / benchmark pakistan

mostly 1mm cable can handle 2amps current, by calculating
load current from given Kw we can easly find suitable cable
for load

Answer / nishant

Its depends on the voltage drop by current calculated from
KW rating. In india generally 3% voltage drop is considered
pumps/motors. It is basically different for different
equipment. It also depends on the cable length. If cable
length is more then voltage will be high so size will be high.

Answer / amol tajane

it simple if load is given in kw just calculate the
current.by refering any cable manafacturer cable catlouge
ampere matching cable can be selected

Answer / md. al-amin sarker

as far i know,
for copper cable,
rm or sqmm = KW * 0.7
kw = 3 phase or single phase load.
the cable size can vary with temperature. because resistance
vary with temperature.

Answer / karteek.k

it entirely depends upon voltage drop across cable

what is the difference between effective earthing and resistive earthing?

3 Answers   REL,

Do you know how to joint the H.T and L.T Cables?

23 Answers   KESC, MGVCL, Nokia, Oil Country Tubular, Power Control, SAGT, Siemens, Simco, Vivek Engineers,

what is tesla ?

1 Answers  

Stepwise process of Northern grid failure in 2012!? (dont copy paste from wikipedia)

1 Answers   Rashtriya Ispat Nigam Limited RINL,

difine electrical ballast in HPSVL

0 Answers  

1. What is differential relay? How it operates? 2.How to calculate the Short Circuit Impedance in Transformer? 3.What is the alternate solution for testing of polarity by using polarity tester while its milli ammeter does not works? 4. While testing the 33KV Busbar by using Hipot kit, what should be the test voltage we have to apply? 5. What is the procedure/activities to be taken to inject the current more than 2000A by using 2000A Loading Transformer? 6. Explain how you can give the overload setting to any Motor Protection Relay for a HT motors with formula and example? 7. Why restricted earth fault protection is needed? Why can’t differential Protection is sufficient? 8. What should be the minimum and maximum ohmic value for earthing? 9. Why DC Currents are not used in transformer? 10. What is the Frequency while we step up the voltage from 220V to 11KV? Is it possible? Explain it?

0 Answers  

What is the relay function?

2 Answers  

what should be the value of helathy insulation b/w two cores of LT cable.

2 Answers  

What are the questions asked in PRDC pool campus test?(bangalore)

1 Answers   PRDC,

Iam Preparing For Ap Transco Assistant Engineer (ELECTRICAL) Exam how To Prepare What Is The Refernce Books.can You Give The Advises To Me.tahnk You. This Is Radhika Iam Preparing For Ap Transco Assistant Engineer (ELECTRICAL

2 Answers  

I have 2 transformers in two different plants, both are without OLTC but i am facing problem of voltage fluctuation at LV side from only one transformer. i have to change its taps manually twice in a day. Another transformer delivering voltage is ok. Please guide me about the problem

1 Answers  

what is cogging and crawling

0 Answers   Suzlon,