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Why use two transformers?
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List two limitations of the Differential Protection scheme for transformers.

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Write any two differences between single-phase and three-phase transformers.

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A plant consists of two 10 MVA generators of reactance 18% each and two 5 MVA generators of 12% each. All are connected to bus bar to supply a load through three step up transformers of 8 MVA each having reactance of 8%. Determine fault MVA on HV side of any one transformer.

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Why Delta Star Transformers are used for Lighting Loads?

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Why are eddy currents undesirable in transformers?
Answer : Eddy currents are undesirable in transformers because they cause **energy loss** and **heat generation**, which can reduce the efficiency of the transformer. Here's how: 1. **Energy ... currents. By minimizing eddy currents, transformers can operate more efficiently and with less heat generation....

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Two bulbs of 100w and 40w respectively connected in series across a 230v supply which bulb will glow bright and why?

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There are a Transformer and an induction machine. Those two have the same supply. For which device the load current will be maximum? And why?

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In three pin plug 6 Amp. 220v AC rating. why earth pin diameter is higher than other two pin? what its purpose ?

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Why there are only 6 parameters in a two-port network?

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Why do we use N-type MOSFET?
Answer : N-type MOSFETs (Metal-Oxide-Semiconductor Field-Effect Transistors) are widely used in electronic circuits for several key reasons: ### 1. **Electron Mobility**: N-type MOSFETs use * ... , and efficiency**, especially when combined with P-type MOSFETs in complementary configurations like CMOS....

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Why use the VCB at High Transmission System ? Why can’t use ACB?

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