what is thresold of perception

0 Answers  

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if we convert ampers into kwh or mwh ,which one formula use by us,pls tell me?

3 Answers  

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What are the methods used to improve powerfactor ?

6 Answers  

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what things to be considered when designing UPS

0 Answers   Aplab, Veta Kipawa ICT Center,

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1.stranded resistance values of motors? 2.how to calculate the resistance values of single phase and 3phase motors?

2 Answers   Bell, L&T,

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what is power factor when in view of a lineman

3 Answers   KSEB,

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I am designing new project sub station with 220 kV / 11 kV, 40 MVA capacity. This project have many recifier sets, which can generate 3rd harmonics. Now I have to select vector group of This transformer. To minimise 3rd harmonics, what care should I take in selection of Transformer Vecrtor group? If it is Y-Y with open Delta tertiary then what should be the rating & voltage of Tertiary Winding?

0 Answers  

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can a 150 kva 3 phase 440v/230V delta-wye step down transformer can be use as step up transfoermer with connected loads at 440v side?

0 Answers   RD Square,

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What will happen to magnitude of voltage of other two phases if one phasw will touch the ground?

3 Answers   Construction, NPCIL,

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what will happen to the core losses if we perform the open ckt test on high voltage side of a transformer ?

2 Answers  

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operating Lt & HT voltages used in India?

8 Answers   Essar,

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What are the different pre-commissioning tests that are performed on the distribution transformer, power cable and switchgear (11kv)?

1 Answers   Hitech, Reliance,

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