Phase Systems

Some articles on phase systems, phase, systems, system, phases:

Per-unit System - Relationship Between Units - Three-phase
... Power and voltage are specified in the same way as single-phase systems ... However, due to differences in what these terms usually represent in three-phase systems, the relationships for the derived units are different ... Specifically, power is given as total (not per-phase) power, and voltage is line-to-line voltage ...
Polyphase System - Phases
... power, some installations used two-phase four-wire systems for motors ... the winding configuration was the same as for a single-phase capacitor-start motor and, by using a four-wire system, conceptually the phases were independent and easy to analyse with mathematical tools ... Two-phase systems can also be implemented using three wires (two "hot" plus a common neutral) ...
Space Shuttle - Mission Profile - Launch
... mainly constructed of conductive aluminum, which would normally shield and protect the internal systems ... if it sensed a critical problem with any of the Shuttle's onboard systems ... At T-minus 16 seconds, the massive sound suppression system (SPS) began to drench the Mobile Launcher Platform (MLP) and SRB trenches with 350,000 US gallons (1,300 m3) of water to protect the ...
Split-phase Electric Power - Connections
... A transformer supplying a 3-wire distribution system has a single-phase input (primary) winding ... This 3-wire system is common in countries with a standard phase-neutral voltage of 120 V ... The two outputs are properly called "legs", not "phases" ...

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