Answer / viral shah

RMC VALUE OF an AC quantity is the same quantity which will produce same heating effect when DC current flows.

Answer / venkat

It is Root Mean Square Value of the Alternating Current

Answer / prathap

RMS means root mean square value. it is the unit of speed

Answer / suhas

Z=R+jXL-IMPEDANCE
XL=SQUER ROOT OFZ^2-R^2

in gen traf what is ONAN , ONAF , OFAF and DYN

3 Answers  

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what is maxemo work permit procedure

0 Answers  

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whats is the role of power factor in designing a tariff structure?

1 Answers   IIT,

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What is difinition of HIGH RESISTANCE FAULT and LOW RESISTANCE FAULT?

3 Answers  

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why do you give the dc supply to field of alternator

3 Answers  

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what are the standard IR values should be of R-E, Y-E, B-E, R-Y, Y-B, B-R of VCB in closed condition and in open condition for 500KVA & 1000KVA transformers. and what is the acceptable range when tested by 5000V megger.

0 Answers   ME,

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when motor taking high amp what happen.

4 Answers  

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I have installed capacitor bank at secondary transformer. cos phi is increase. but on load (far from transormer), it still poor. Can anybody explain it??

6 Answers  

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does any one know where we can purchase insulation oil for high voltage oil filled cables

0 Answers  

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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  

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i am using star-delta connections with reverse/forward direction motion of the 75hp induction motor.What should be the ratings of Main,Delta and Star contactors and why?

1 Answers  

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I am a electrical engg. diploma holder,applied for junior engineer (electrical),Kolkata RRB. Have I to attend all electrical,mechanical&civil portion in written exam.???

0 Answers   RRB,

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