Answer / Uday Bhan Singh

Unit sizes of hydro generating machines are not standardized due to the varied geographical conditions, river flow rates, and required power output for different projects. Additionally, site-specific factors like reservoir capacity, head, and flood potential also play a role in determining the unit size.

A 400 V, 50 Hz, Δ connected synchronous generator has a field reactance of 0.1 Ω and armature resistance of 0.015 Ω. At full load, the machine supplies 1200 A at 0.8 pf lagging. Under full-load conditions, the friction and windage losses are 40 KW and the core losses are 30 KW. What is the machine’s overall efficiency? Ignore any field circuit losses.

1 Answers   VECL,

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motor work in hat principle generator work in what principle transformer work in what principle pls explain with details or answered to ramadoss.sepc@gmail.com

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If u take a kWh reading in 11 kV HT and 440 LV side at same time in yesterday today , then why LT consumed units 3-4℅ high as compared to HT units

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I have 30 kw motor load & i have selected 10 kvar capacitor bank for power factor improvement.my existing p.f is 0.85 & proposed p.f is 0.99 so ,is it right selection? 2 nd question how to connect c.bank whether in delta or star connection & how to decide it?

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What will be done if we open the secondary of CT on load??

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what are the 6 terminals of the motor plss give me in details

5 Answers   Siemens,

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