Certificate In Control Transformer Manufacturing Business

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Certificate In Control Transformer Manufacturing Business

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What is the working principle of a Transformer?

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Which type of flux does transformer action need?

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Transformer cores are laminated in order to

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What is the thickness of laminations used in a transformer?

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The primary and secondary windings of an ordinary 2-winding transformer always have

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What is Transformer?

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In relation to a transformer, the ratio 20 : 1 indicates that

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A step-up transformer increases

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Current transformers are __________________

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What is the function of a transformer?

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A transformer having 1000 primary turns is connected to a 250-V a.c. supply. For a secondary voltage of 400 V, the number of secondary turns should be

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The main purpose of using core in a transformer is to

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Transformers are generally designed for ___________

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In a two-winding transformer, the e.m.f. per turn in secondary winding is always .......the induced e.m.f. power turn in primary.

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The equivalent resistance of the primary of a transformer having K= 5 and R1= 0.1 ohm when referred to secondary becomes.......ohm.

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The primary and secondary induced e.m.fs. E1 and E2 in a two-winding transformer are always

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What is the function of a breather in a transformer?

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A transformer transforms

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A transformer has negative voltage regulation when its load power factor is

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Which of the following is not a basic element of a transformer ?

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Transformer ratings are given in _____________

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What is the current transformer?

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In an ideal transformer,

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In a transformer, the leakage flux of each winding is proportional to the current in that winding because

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Primary winding of a transformer ______________

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In performing the short circuit test of a transformer

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Transformer core is generally made of ___________

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Which of the following is not a part of transformer installation?

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The purpose of the transformer core is to provide ____________

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Which of the following transformer, Buchholz’s relay can be fixed on?