Transformers

tightness of clamping

gauge of laminations

size of laminations

all of the above

$$ rac{{{{ ext{R}}_2}}}{{sqrt { ext{K}} }}$$

$$ rac{{{{ ext{R}}_2}}}{{{{ ext{K}}^2}}}$$

$$ rac{{{ ext{R}}_2^2}}{{{{ ext{K}}^2}}}$$

$$ rac{{{ ext{R}}_2^2}}{{ ext{K}}}$$

primary side

secondary side

low voltage side

high voltage side

to provide oxygen inside the tank

to cool the coils during reduced load

to cool the transformer oil

to arrest flow of moisture when outside air enters the transformer

90% load

Zero load

25% load

50% load

1.7 Wb/m2

2.7 Wb/m2

3.7 Wb/m2

4.7 Wb/m2

fluctuating load

poor insulation

mechanical vibrations

saturation of core

load on it increases

load on it decreases

load remains constant

none of the above

Magnetostriction

Boo

Hum

Zoom

wood

copper

aluminium

silicon steel