I NEED RRB CHENNAI (JE ELECTRICAL) QUESTION PAPER FOR LAST
5 YEAR AND I NEED RRB (JE ELECTRICAL) SYLLABUS.PLEASE SEND
MY E-MAIL joo28_eee@yahoo.co.in
Answer Posted / srinivas
for rrb je electrical exam preparation please send me
| Is This Answer Correct ? | 7 Yes | 2 No |
Post New Answer View All Answers
What is the formulae of Megger value for a A.C.Motor
how does the terminal voltage of transmission lines increase when a capacitor is connected???? This happens not only in transmission lines but also in all circuits. How??? When a capacitor is connected in a transmission line, capacitor also takes energy from the same supply. But how is it able to increase the terminal voltage??? Practically What sequence of events happen during increase in voltage???
how to calculate the fault in substation
what is class of SPD and dittels of all class ?
How does the phase sequence controller works, how it identifies the phases? confirm working principle
TRANSFORMERS WITH DC SUPPLY
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?
What is pole of the system?
How can we calculate strength of copper hich is supplying electric power to heater and in it hold the heater also and what r all types of forces which is acting on it...
define superposition theorem thevnin theorem ,norton theorom?
How to maintain ac plant?
How many types of colling system it trformers?
what is the earth current,reverse power,electrical trip generator short circuit,low voltage, high voltage please discribe me
i had aplied Hindustan Petroleum corporation limited for the post of maintenance technician -Electrical,i want model questions,if anybody have please send it or please advice?
what is Insulation monitoring device. where it is used? (in switchgear room or control panel or in field equipment)