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  2. Polarity (mutual inductance) - Wikipedia

    en.wikipedia.org/wiki/Polarity_(mutual_inductance)

    In the "subtractive" arrangement, the H1 and X1 terminals are adjacent, and the voltage measured between H2 and X2 would be the difference of the high voltage and low voltage windings. [3] Pole mounted distribution transformers are manufactured with additive polarity, while instrument transformers are made with subtractive polarity.

  3. Current transformer - Wikipedia

    en.wikipedia.org/wiki/Current_transformer

    A current transformer has a primary winding, a core, and a secondary winding, although some transformers use an air core. While the physical principles are the same, the details of a "current" transformer compared with a "voltage" transformer will differ owing to different requirements of the application.

  4. Transformer effect - Wikipedia

    en.wikipedia.org/wiki/Transformer_effect

    The transformer effect, or mutual induction, is one of the processes by which an electromotive force (e.m.f.) is induced. In a transformer , a changing electric current in a primary coil creates a changing magnetic field that induces a current in a secondary coil.

  5. Transformer - Wikipedia

    en.wikipedia.org/wiki/Transformer

    In electrical engineering, a transformer is a passive component that transfers electrical energy from one electrical circuit to another circuit, or multiple circuits.A varying current in any coil of the transformer produces a varying magnetic flux in the transformer's core, which induces a varying electromotive force (EMF) across any other coils wound around the same core.

  6. Leakage inductance - Wikipedia

    en.wikipedia.org/wiki/Leakage_inductance

    Leakage inductance has the useful effect of limiting the current flows in a transformer (and load) without itself dissipating power (excepting the usual non-ideal transformer losses). Transformers are generally designed to have a specific value of leakage inductance such that the leakage reactance created by this inductance is a specific value ...

  7. 270 Reasons Women Choose Not To Have Children - The ...

    data.huffingtonpost.com/2015/07/choosing-childfree

    The number of childfree women is at a record high: 48 percent of women between the ages of 18 and 44 don’t have kids, according to 2014 Census numbers. The Huffington Post and YouGov asked 124 women why they choose to be childfree.

  8. Quadrature booster - Wikipedia

    en.wikipedia.org/wiki/Quadrature_booster

    400 MVA 220/155 kV phase-shifting transformer.. A phase angle regulating transformer, phase angle regulator (PAR, American usage), phase-shifting transformer, phase shifter (West coast American usage), or quadrature booster (quad booster, British usage), is a specialised form of transformer used to control the flow of real power on three-phase electric transmission networks.

  9. Perplexity AI bids to merge with TikTok US amid looming ban ...

    www.aol.com/perplexity-ai-bids-merge-tiktok...

    U.S. search engine startup Perplexity AI submitted a bid on Saturday to TikTok's Chinese parent ByteDance for Perplexity to merge with TikTok U.S., a source familiar with the company's plans told ...