enow.com Web Search

Search results

1. Results from the WOW.Com Content Network

2. Three-phase electric power - Wikipedia

   en.wikipedia.org/wiki/Three-phase_electric_power

   Except in a high-leg delta system and a corner-grounded delta system, single-phase loads may be connected across any two phases, or a load can be connected from phase to neutral. [28] Distributing single-phase loads among the phases of a three-phase system balances the load and makes most economical use of conductors and transformers.

3. Polyphase system - Wikipedia

   en.wikipedia.org/wiki/Polyphase_system

   One voltage cycle of a three-phase system. A polyphase system (the term coined by Silvanus Thompson) is a means of distributing alternating-current (AC) electrical power that utilizes more than one AC phase, which refers to the phase offset value (in degrees) between AC in multiple conducting wires; phases may also refer to the corresponding terminals and conductors, as in color codes.

4. Transformer types - Wikipedia

   en.wikipedia.org/wiki/Transformer_types

   If the secondary is a delta winding, the ground may be connected to a center tap on one winding (high leg delta) or one phase may be grounded (corner grounded delta). A special purpose polyphase transformer is the zigzag transformer. There are many possible configurations that may involve more or fewer than six windings and various tap connections.

5. Wireless repeater - Wikipedia

   en.wikipedia.org/wiki/Wireless_repeater

   Most wireless repeaters (or range extenders) are purpose-built, but certain wireless routers can be flashed with custom firmware such as DD-WRT to give them a 'range extender' option. A better option for extending wireless coverage is to configure a secondary box as a wireless access point , with a wired connection between a LAN port on this ...

6. High-leg delta - Wikipedia

   en.wikipedia.org/wiki/High-leg_delta

   Where the three-phase load is small relative to the total load, two individual transformers may be used instead of the three for a full delta or a three-phase transformer, thus providing a variety of voltages at a reduced cost. This is called open-delta high-leg, and has a reduced capacity relative to a full delta. [3] [4] [5]

7. Power dividers and directional couplers - Wikipedia

   en.wikipedia.org/wiki/Power_dividers_and...

   For a 3 dB coupling, that is equal splitting of the signal between the transmitted port and the coupled port, = and the isolated port is terminated in twice the characteristic impedance – 100 Ω for a 50 Ω system. A 3 dB power divider based on this circuit has the two outputs in 180° phase to each other, compared to λ/4 coupled lines which ...