how can you calculate the value of external resistance inserted in a slipring industion motor? (eg. 110 kw / 990 rpm/50Hz/stator v-415/stator Amp-195/Rotor V-440/Rotor amps- 151.)

6 Answers   Bosch, NMDC,

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Why the cost of CT increases with the decreasing of its CT Ratio (Technical Reason)?

2 Answers   Vedanta,

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How does frequency affect KVA rating of a transformer? If a 500 kva, 400 v, 60 hz t/f is to be operated on 50 hz frequency then how will its KVA rating change? a-increase b-decrease c-remains same Also explain why do u think like that.

8 Answers  

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Hello everyone, somebody knows what is a "surplice power" ? The hole phrase is: "This rating is appropriate for a generator set paralleled with an infinite bus e.g. a national electrical supply network or grid where the generator set is run at 100% load, 24 hours a day, 365 days a year and any surplice power is exported into the grid" Thanks in advance.

0 Answers  

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What is the role of Dedicated earthing in UPS System?

0 Answers   HCL, MSPL,

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how we can save electrical energy in industries,please give some inputs

3 Answers  

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WHAT IS THE DIFFERENCE BETWEEN GENERAL INVERTER AND SOLOR INVERTER TELL ME PLZ

0 Answers   Epcon,

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In explosive and polluted environments which type of motors do we use?

3 Answers   NTPC,

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How much current can a 3-1/2 core 100 mm wire carry?

3 Answers   Epitome, Focus, Focus Energy,

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what is prniciple of three phase IM?

3 Answers  

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Resistor switching is used in which type Circuit Breaker ? a) oil filled CB b) Air blast CB c) Gas filled CB

11 Answers   Engineers India Limited, wbsedcl,

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what current is taken from a double wound 500kva transformer

4 Answers  

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