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what is the prinsiple of dc motor and construction and working ,application of dc motor.
How to define Kirchhoff current law and voltage law along with simply examples.
what is upper impedance and lower impedance of a distance relay
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?
Whether amorphous core transformer is commercialized or not:Name of company making amorphous core transformer and what are different rating?
which types of relay used in acb and vcb?
What do you understand by external characteristics of a d.c. Generator?
Explain the function and difference of Restricted earth fault, simple earth fault and sensitive earth fault with connection diagram.
CPC cable .PVC \1C....I want to get sure that type is flexible indoor or to be install on trench. please advice .thanx :)
How will you define capacitance?
how to estimate wiring ins roughing ins. and boxes
Is there any specialised book to refer about fault level calculation both in MV and LV side??
I WANT YHE TECHNICAL AND ELECTRICAL SPECIFICATIONS OF 2x4MW 11KV 2x10MW 11KV 2x25MW 11KV 2x100MW 11KV HYDEL POWER PLANT i.e PROTECTION SYSTEM,MONITORING,CONTROL SYSTEM,GENERATION,SYNCHRONISATION,METERING PLEASE SEND THE DETAILS TO MY MAIL ID SPRAVEEN_222@YAHOO.CO.IN
I want to calculate how much capacitor we connect to maintain the unity power factor? Is there any formula? Pls give me the answer
Starting times for soft starter & power factor is thier any standard or datas available in manufactures list. Kindly suggest.
