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Transformers
Which of the following protection is normally not provided on small distribution transformers?
All of these
Overfluxing protection
Buchholz relay
Overcurrent protection
All of these
Overfluxing protection
Buchholz relay
Overcurrent protection
Answer
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Related Question
Transformers
Which of the following acts as a protection against high voltage surges due to lightning and switching?
Thermal overload relays
Breather
Horn gaps
Conservator
Thermal overload relays
Breather
Horn gaps
Conservator
Answer
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Transformers
Material used for construction of transformer core is usually
Copper
Silicon steel
Aluminium
Wood
Copper
Silicon steel
Aluminium
Wood
Answer
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Transformers
An open-circuit test on a transformer is conducted primarily to measure
total loss
core loss
insulation resistance
copper loss
total loss
core loss
insulation resistance
copper loss
Answer
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Transformers
In a power or distribution transformer about 10 per cent end turns are heavily insulated
to absorb the line surge voltage and save the winding of transformer from damage
None of these
to reflect the line surge and save the winding of a transformer from damage
to withstand the high voltage drop due to line surge produced by the shunting capacitance of the end turns
to absorb the line surge voltage and save the winding of transformer from damage
None of these
to reflect the line surge and save the winding of a transformer from damage
to withstand the high voltage drop due to line surge produced by the shunting capacitance of the end turns
Answer
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Transformers
A transformer oil must be free from
Sludge
Gases
Moisture
Odour
Sludge
Gases
Moisture
Odour
Answer
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