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a single-phase 50 hz transformer has a voltage ratio of 2302300 v a capacitor rated 30 kvar is connected on the 2300 v
a single-phase transformer is rated 600200 v 25 kva 50 hz the transformer is supplying full load on secondary side at
1 state ohms law for magnetic circuits2 define magnetic reluctance3 explain why a ferromagnetic material exhibits its
1 advance a qualitative explanation for reduction of eddy current loss by using a core composed of silicon steel
the emf per turn for a single-phase 2200220- v 50-hz transformer is approximately 12 v calculatea the number of primary
a ring of magnetic material has a rectangular cross-section the inner diameter of the ring is 20 cm and the outer
1 a 20 kv a 2000200 v transformer has name plate leakage impedance of 8 what voltage must be applied on the hv side to
a single-phase load is fed through a 66-kv feeder whose impedance is 120 j 400 omega and a 6666 kv transformer whose
a 20 kva 2000200 v 50 hz transformer is operated at no-load on rated voltage the input being 150 w at 012 power factor
a 22127 kv 125 mva transformer has primary and secondary impedances of 0015 j 006 pu each its magnetizing reactance is
a 50 kva 2200110 v transformer when tested gave the following resultsoc test measurements on the lv side400 w 10 a 110
a 100 kva 1100230 v 50-hz transformer has an hv winding resistance of 01 omega and a leakage reactance of 04 omega the
a 3-phase 50 kva 6604 kv 50 hz transformer is y connected it yielded the following test resultscalculate the pu circuit
a 6604 kv 100 kva distribution transformer is connected dy the transformer has 12 resistance and 5 reactance find the
a small industrial unit draws an average load of 100 a at 08 lagging pf from the secondaries of its 2000200 v 60 kva y
a 500-kva 11043-kv 3-phase deltastar connected transformer has on rated load hv copper-loss of 25 kw and lv loss of 2
two single-phase transformers rated 600 kva and 500 kva respectively are connected in parallel to supply a load of 1000
two single-phase transformers rated 1000 kva and 500 kva respectively are connected in parallel on both hv and lv sides
a 20 kva 4400220 v transformer with an equivalent impedance of 001 omega is to operate in parallel with a 15 kva
a 200400 v 20 kva and 50 hz transformer is connected as an autotransformer to transform 600 v to 200 va determine the
a 20 kva 2000200 v two-winding transformer is to be used as an autotransformer with a constant source voltage of 2000 v
a 400100 v 10 kva 2-winding transformer is to be employed as an autotransformer to supply a 400 v circuit from a 500 v
a 20 kva 200500 v 50 hz single-phase transformer is connected as an auto-transformer as shown in fig p328 determine its
1 why is the sc test performed at reduced voltage on the hv side2 where is an autotransformer employed in a power
1 why are transformers needed in a power system2 why are transformers placed in oil-filled tanks3 describe how the