there is a # KVA Transformer of 11 KV/440V, in simple(not use formuia) how can you calculate it's HT & LT side current.
Answer Posted / sunit
this is simple .. assume a 100kva tr, ok
then p= vi ( power = voltage x current)
1.lets see for HT side
p( kva)= root 3 ( for 3 phase)x voltagex current
=> kva = root3xvxI
=> 100kva=1.732x11kvxI
=> I= 5.25amp/phase
2. similarly in secondary side means LT side
=> 100kva=1.732x440xI
=> I= 144amp/phase
| Is This Answer Correct ? | 8 Yes | 6 No |
Post New Answer View All 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?
EXPLAIN THE TERMS "INTEREST AND DEPRECIATION" AS APPLIED TO ECONOMICS OF POWER GENERATION.
Where can I get Iidian straderd specifications for electrical items or works in web? please help me.
What is the working principle of servo motor? And explain it.
what are symmetrical and non symmetrical components in electrical installation.
is it true there's a big difference in using Cummins or Denyo...especially power output or leakage
What is the function of attenuator in cro?
why ahould you show client/engineer activities clearly on the project plan
How to measure the earth resistance value in a concrete pavement(flood light area)?
If anyone would like to know or practice for FEWA papers contact me on mohamedrashad2@hotmail.com Just completed the supervisor exam in April 2021
Difference between control junction box (cjb) and power junction box(pjb)?
why do we have spikes enough to burn electronic boards, when generators are not grounded
The advantages of Magnetic flux leakage technique over Ultrasonic technique for non distructive testing of material.
The SFC of an engine is 0.25 kg/kW hr. when the fuel used has a calorific value of 36000 kJ/kg. the thermal efficiency of the engine is
I want to make street light with solar system ... What may I do for procedure and how much of estimation for each material ... If any one knows guide me and inform this id : aravindd7@gmail.com