Answer / atish kr(mti)

Efficiency=Output_
Input
..,

what is the working principle of electrical motors?

4 Answers  

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which type of A.C motor is used in the fan (ceiling fan, exhaust fan, padestal fan, bracket fan etc) which are find in the houses ?

25 Answers   Airtel, MPPTCL, USSA,

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What is resolver and glass scale in CNC how they work?

0 Answers  

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What are the questions asked in PRDC pool campus test?(bangalore)

1 Answers   PRDC,

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trasformer ratting

2 Answers   Bhel,

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what is onan, onaf, ofan, ofaf in transformer?

8 Answers  

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What happend if we connect star point to ground of a star connected motor? And what will be effect on system and effeciency of motor?

1 Answers  

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what is automatic voltage regulator and it is used?

28 Answers   ACME, TCS,

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Why does increasing the magnetic flux in the main field of a d.c motor cause the armature current to reduce??

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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what is spadar bar .why I use in DC generator.

0 Answers   BSL,

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what is servo motor and how it works?

0 Answers   Godrej,

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