The ratings state the limits on voltage and current for operating the transformer at full load. The rated voltage times the rated current gives the rated VA of the transformer. Transormers are not usually rated directly for power because this depends on the power factor of the load applied.
Rated voltage is the voltage at primary side. Rated current can be found from the equation, Rated Current= Output KVA / Output rated voltage
Simply, the voltage which is withstand by the test object as an impulse is called as rated impulse voltage.
It depends where you bought it. In North America, its rated voltage will be 120 V whereas, in Europe, its rated voltage will be 230 V.
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Regulation =(Obtained voltage per phase - rated voltage per phase)/rated voltage per phase *100
It is the rated test voltage that will not cause insulation breakdown.
poles are partially magnetized this causes some voltage called residual voltage
Sure, as long as it's rated for that voltage.
To operate at its rated power, a lamp must be subject to its rated voltage (the supply voltage). As each branch of a parallel circuit is subject to the same voltage (the supply voltage), each lamp will operate at its rated power.
The rated voltage of a generator decreases due to many causes such as armature reaction, overloading of the generator and AVR failure/ weak excitation voltage.
Cut-in voltage is the value of voltage at which appreciable current begins to flow when a pn junction is forward biased.