A transformer core is laminated to
A common method of cooling a power transformer is
Power transformers are designed to have maximum efficiency at
The purpose of providing an iron core in a transformer is to
The dielectric strength of transformer oil is expected to be
What will happen if the transformers working in parallel are not connected with regard to polarity
In a given transformer for given applied voltage, losses which remain constant irrespective of load changes are
Noload on a transformer is carried out to determine
In the transformer following winding has got more crosssectional area
The purpose of providing iron core in a stepup transformer is
While conducting shortcircuit test on a transformer the following side is short circuited
The no load current in a transformer lags behind the applied voltage by an angle of about
Which of the following is not a part of transformer installation ?
The maximum efficiency of a distribution transformer is
A transformer cannot raise or lower the voltage of a D.C. supply because
Two transformers operating in parallel will share the load depending upon their
Which winding in a transformer has more number of turns ?
The path of a magnetic flux in a transformer should have
Which of the following does not change in a transformer ?
The no-load current drawn by transformer is usually what per cent of the fullload current ?