draw a dol with the following rtds,stop/start,ct,vt and o/l
supply is 6.6kv and the coil is 110v
To determine the Healthiness of Insulation we will be performing Dielectric tests i.e Insulation Resistance test, Partial Discharge test,Switching Impulse, Lightning impulse, Tan Delta test ...etc why we required to perform this many test, why cant we do only one test. for Transformer, CT's
How many types of electric motors are there?
As we know that during saturation test of CT from secondary side, the current in secondary shoots up after core saturation. How core saturation effects the secondary current?
Why the frequency of a system is changed if the load changes?
clarify types of motor operated valves and advantages
sir,i am swati. i am goin to gv jspl exam on 21st nov'10. iwant previous year question paper. plz help me out. my emailid is swatisinha.dav@gmail.com
why voltages are multiple of 11 or 1.1???describe with derivation plzzz.thanks
What is meant by system?
What is the working mechanism of OLTC in Power Transformers????
what is H.T?specify the range?
what is bus post insulator and its applications in substations
HOW TO CALCULATE THE CABLE SIZE FOR POWER CABLE, CONTROL CABLE AND INSTRUMENT CABLE