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Why is a transformer rated in kVA and not in kW?
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Why motor are rated as KW while transformer rated in kVA?

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Why Power Plant Capacity Rated in MW and not in MVA?

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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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Is kVA equal to kW?
Answer : No, **kVA** (kilovolt-amperes) is **not** the same as **kW** (kilowatts). They both measure power, but in different ways. - **kVA** measures **apparent power**, which is the total power supplied by a source. It ... } \times 0.8 = 8 \, \text{kW} \] So, in this case, 10 kVA is equivalent to 8 kW....

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How many kW is 10 kVA?
Answer : To convert from kVA (kilovolt-amperes) to kW (kilowatts), you need to know the power factor (pf) of the system. The formula is: \[ \text{kW} = \text{kVA} \times \text{Power Factor (pf)} \] ... on the power factor of the load. If you know the power factor, you can use it in the formula above....

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Why transformer is not used in half wave rectifier?

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Why the voltage and current are not in phase across a capacitor and inductor?

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What is the significance of the rated current in an MCB?

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Why Battery rating in Ah (Ampere hour) and not in VA.

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Why hysteresis and eddy current losses occur in a transformer?

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A single phase wattmeter rated for 500 V; 5 A is having full scale deflection of 1000 watt. What is multiplying factor of the wattmeter?

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What is rated speed?
Answer : **Rated speed** refers to the speed at which a machine, such as a motor or an engine, is designed to operate efficiently and safely under normal working conditions. It's the speed at which the ... fast or too slow compared to its rated speed, it might not work efficiently or could even get damaged....

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Define the following terms related to CB: i) Rated normal current ii) Rated breaking current iii) Short time rating iv) Symmetrical breaking current.

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Why most of analog o/p devices having o/p range 4 to 20 mA and not 0 to 20 mA?

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