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What is the two wattmeter method
The watt hour meter that measures three-phase electricity consumption with two-phase electricity is the two watt meter method, which is suitable for the place where three-phase current is balanced. In vernacular, knowing the two-phase electricity consumption can also calculate the whole three-phase electricity consumption, and measure the total power of two-phase
Can two watt meter be used to measure high power of three wire four system asymmetrical load? Why /?
In the three-phase four wire system, the two watt meter method can not be used to measure the three-phase power, because in general, the neutral current is not zero, that is: Ia + IB + IB ≠ 0
What did watt invent?
Portrait of James Watt James Watt (January 19, 1736 - August 25, 1819) is a famous British inventor and an important figure during the industrial revolution. He is a member of the Royal Society of England and a foreign academician of the French Academy of Sciences
Is James Watt a great man?
The one who invented the steam engine
Yes, he is good at learning. He is a good doer. He improved the steam engine, but this improvement is a great change. The steam engine is very different from the past. It opens the door to industry, and makes the wealth created by human beings in the next 100 years exceed the total of the past. Without him, 100 years would not be possible
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