Three phase voltage 230
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In each of the three coils of a three phase generator, an alternating voltage having an r.m.s. value of 220 V is induced. Which of the following values is indicated by the voltmeters ? (a) 220 V (b) 220V3V (c) 220/V3 V (d) none of the above Ans: a
[DOC File]Home | US Forest Service
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Jun 17, 2002 · 277/480, 3 phase, 4W- This voltage is usually used on large systems to reduce incoming service size, wire size and distribution equipment size. Fluorescent and other discharge lighting can be used at 277 volts. 480 volt single phase, 480V three phase, and 277 volt single phase loads can be used on this system.
[DOC File]GENERIC SPEC FOR MULTIFUNCTION ELECTRICAL POWER …
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B. The Monitor shall accept input from standard instrument transformers (120 volt secondary potential transformers). The monitor shall accept a voltage monitoring range of up to 600 volts, phase to phase. The Monitor shall be capable of connection to a three phase, four wire wye system or a three phase, three wire, open delta system.
[DOC File]SECTION 16221
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Feb 12, 2009 · 2. 120/208 V, Three Phase, 4W, Premises Wiring Systems: a. Motors Less Than 1 hp: NEMA standard motor voltage 115 V, single phase, 60 Hz. b. Motors 1 hp and Larger: NEMA standard motor voltage 200 V, three phase, 60 Hz. 208 V, 208-230 V, 220 V, or 230 V motors are not acceptable. 3. 277/480 V, Three Phase, 4W, Premises Wiring Systems: a.
[DOC File]Split-phase electric power - Astronomy
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In this case, the transformer voltage is 120 V on either side of the center tap, giving 240 V between the two live conductors. In Europe, 230/460 V, 3-wire, single-phase systems are used to run farms and small groups of houses when only two of the three-phase high voltage conductors are available (it is cheaper to run two wires than three).
[DOC File]SECTION 13921 - Government of New York
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A. Motor (Nameplate) Voltage: 1. 120/208 V and 277/480 V, Three Phase, 4W Premises Wiring Systems: a. Motors Less Than 1/2 HP: NEMA standard motor voltage 115 V, single phase, 60 Hz. b. Motors 1/2 HP and Larger: 1) 208 Volt Circuit: NEMA standard motor voltage 200 V, three phase, 60 Hz. 208 V, 208-230 V, 220 V, or 230 V motors are not acceptable.
[DOC File]1 - Cooper Industries
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C57.12.10 – Safety Requirements 230 kV and Below 833/958 Through 8333/10417 kVA, Single-Phase, and 750/862 Through 60000/80000/100000 kVA, Three-Phase Without Load Tap Changing; and 3750/4687 Through 60000/80000/100000 kVA with Load Tap Changing. C57.12.28 – Sections 5.3, 5.4, 5.5 – Coating System Requirements.
[DOCX File]Section 23 05 12 - GENERAL MOTOR REQUIREMENTS FOR …
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Voltage ratings shall be as follows: Single phase: Motors connected to 120-volt systems: 115 volts. Motors connected to 208-volt systems: 200 volts. Motors connected to 240-volt or 480-volt systems: 230/460 volts, dual connection. Three phase: Motors connected to 208-volt systems: 200 volts.
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