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10 relations: Electrical engineering, Electrical polarity, Instrument transformer, Lenz's law, Phasor, Power factor, Prentice Hall, Protective relay, Short circuit, Transformer.
Electrical engineering
Electrical engineering is a professional engineering discipline that generally deals with the study and application of electricity, electronics, and electromagnetism.
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Electrical polarity
Electrical polarity is a term used throughout industries and fields that involve electricity.
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Instrument transformer
Instrument transformers are high accuracy class electrical devices used to isolate or transform voltage or current levels.
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Lenz's law
Lenz's law (pronounced), named after the physicist Heinrich Friedrich Emil Lenz who formulated it in 1834, states that the direction of current induced in a conductor by a changing magnetic field due to induction is such that it creates a magnetic field that opposes the change that produced it.
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Phasor
In physics and engineering, a phasor (a portmanteau of phase vector), is a complex number representing a sinusoidal function whose amplitude (A), angular frequency (ω), and initial phase (θ) are time-invariant.
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Power factor
In electrical engineering, the power factor of an AC electrical power system is defined as the ratio of the real power flowing to the load to the apparent power in the circuit, and is a dimensionless number in the closed interval of −1 to 1.
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Prentice Hall
Prentice Hall is a major educational publisher owned by Pearson plc.
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Protective relay
In electrical engineering, a protective relay is a relay device designed to trip a circuit breaker when a fault is detected.
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Short circuit
A short circuit (sometimes abbreviated to short or s/c) is an electrical circuit that allows a current to travel along an unintended path with no or a very low electrical impedance.
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Transformer
A transformer is a static electrical device that transfers electrical energy between two or more circuits through electromagnetic induction.
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References
[1] https://en.wikipedia.org/wiki/Polarity_(mutual_inductance)
