Answer Posted / manoj sangrolkar

Transformer is breathing like human. When air is going
inside it contain moisture. To avoid short circuit due to
moisture, breather is used. When air passes through breather
it became dry. Result long life of transformer

Difference between Earthing Truck & Earthing trolly for HT panel

4341

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Differentiate between real and apparent power?

1102

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I am having a 42KW 3 phase electrical heating furnace, heating element is 80/20 nichrome material, my connections is made in such a way that 2 star connection compromising 2 coils per phase so totally 12 coils, shall if i use it unbalanced star condition (instead of 2 group of 3 phase or 1 group of 3 phase, connecting 4 phases of 5 phases) what will be the consequences and is it acceptable?

1632

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1826

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1876

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2147

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1006

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1563

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1824

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4420

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1844

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A ray hit a smooth regular surface at an angle of 20 from the normal. Calculate : 1. The angle btw the incident and reflection ray. 2. The angle of deviation.

1879

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