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How to calculate transformer ratio?
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How do you calculate the turns ratio of a transformer?

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A three-phase transformer having a line voltage ratio of 0.4 kV/11kV is connected Star/Delta and protective transformers on the 0.4 kV side have a current ratio of 500/5. Calculate the ratio of ... on the 11 kV side. Draw a neat circuit diagram and indicate the given values at appropriate places.

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A 220V/22kV three-phase transformer is connected in star/delta. The protective transformers on the 220V side have a current ratio of 400/5. Calculate the CT ratio on the 22kV side.

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A 3 φ I.M. has synchronous speed of 250rpm and 4% slip at full load. The rotor has a resistance of 0.02Ω/ph and stand still reactance of 0.15Ω/ph. Calculate i) The speed at which max torque is developed. ii) The ratio of maximum to F. L. torque. iii) The ratio of maximum to starting torque.

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How does a current differential protection scheme handle current transformer ratio mismatch?

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What is the turns ratio in a transformer?
Answer : The **turns ratio** in a transformer is the ratio of the number of turns of wire in the primary coil (input side) to the number of turns in the secondary coil (output side). ... to the secondary coil determines whether the transformer increases or decreases the voltage (and inversely, the current)....

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How does the turns ratio relate to voltage transformation?

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How does a boxcar averager improve signal-to-noise ratio?

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How do you calculate transformer losses?
Answer : Transformer losses are mainly classified into two types: **core losses** (or iron losses) and **copper losses**. Here's how you can calculate them: ### 1. **Core Losses (Iron Losses)**: Core ... + \text{Total Losses}} \] I hope that helps you understand how transformer losses are calculated!...

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What is the ratio of electric flux density to electric field strength called?

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A 500kVA distribution transformer having copper and iron losses of 5kW and 3kW respectively on full load. The transformer is loaded as shown below: Loading (kW) Power Factor (Lag) No. of hours 400 0.8 06 300 0.75 12 100 0.8 03 No load - 03 Calculate the all-day efficiency.

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How does a MOSFET's aspect ratio (W/L) affect its current-carrying capacity?

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How does a current differential protection scheme handle CT ratio mismatch?

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How do you calculate line losses due to temperature variations?

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