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  1. 480V, 3 phase delta to 240V with high leg question

    Jun 12, 2024 · The secondary power from the transformer will go to feed a meter bank on each floor. I want to bring 3-phase power to the meter bank but 120/240V single phase to each dwelling. Then I …

  2. 480V/3-phase line-to-line value | Information by Electrical ...

    Dec 5, 2013 · The line to neutral voltage is 277 and the line-to-line voltage is 480. You can connect either wye or delta loads with the appropriate voltage rating or either 277 or 480V single phase loads. …

  3. Will 480V three phase generally have a neutral? | Information by ...

    Jul 9, 2025 · I work for an OEM. We have a new product that requires 460V with a neutral (277V) to run. If our customers have 480V service will they generally have a neutral tap as well? Or is that a risky …

  4. 480V vs 460V | Information by Electrical Professionals for Electrical ...

    Nov 9, 2023 · 100 Amp Square D 480V 3 phase breaker The readings are as follows. 496 Leg to leg 497 leg to leg 495 outside leg to outside leg 237.5 leg to neurtral 236 leg to neutral 237.3 leg to neutral …

  5. 3 phase, 380V, 50Hz motors need to operate at 3 phase, 480V, 50Hz

    Jan 3, 2024 · The issue is that the power supply at the site is 3 phase 480V, 50Hz. Would a 3 phase transformer 480V/50Hz primary and 380V/50Hz secondary be our best solution? Another potential …

  6. 480v 3W delta and neutral - Mike Holt's Forum

    Nov 23, 2020 · I am looking at a pole mounted utility provided 3-can xfmr bank with a secondary delta configuration. T1 feeds T2, T2 feeds T3, T3 feeds T1. In the middle of each feed, the phase …

  7. 480V 3 phase to 120/240V single phase Xfmr - Mike Holt's Forum

    Jul 20, 2022 · Is 480V 3 phase to 120/240V single xfmr configuration available. Does utility provide 1 ph, 2 wire, 480V, 400 amp service normally or needs special circumstances.

  8. Finding minor ground fault on a 480v system | Information by Electrical ...

    Feb 28, 2021 · At my facility we have a 3 phase 480v delta wye transformer( no neutral) feeding our plant with a high resistance ground package with an analog meter on it reading about 25 volts to …

  9. Ungrounded Delta 480V/3-Phase/3-Wire System - Mike Holt's Forum

    Mar 16, 2017 · The utility company says it is an un-grounded delta secondary at 480V/3-phase/3-wire system. I asked them to take voltage readings between phase-phase and phase-ground just to make …

  10. 480Volt GFCI | Information by Electrical Professionals for Electrical ...

    Jul 13, 2021 · 210.8B 3 phase GFCI 150volts or less to ground, So with 480 its business as usual? Do they even make 3 pole 480volt GFCI protection?