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2. Grid-tie inverter - Wikipedia

   en.wikipedia.org/wiki/Grid-tie_inverter

   A high-quality modern grid-tie inverter has a fixed unity power factor, which means its output voltage and current are perfectly lined up, and its phase angle is within 1° of the AC power grid. The inverter has an internal computer that senses the current AC grid waveform, and outputs a voltage to correspond with the grid. However, supplying ...

3. Grid-tied electrical system - Wikipedia

   en.wikipedia.org/wiki/Grid-tied_electrical_system

   A grid-tied electrical system, also called tied to grid or grid tie system, is a semi-autonomous electrical generation or grid energy storage system which links to the mains to feed excess capacity back to the local mains electrical grid. When insufficient electricity is available, electricity drawn from the mains grid can make up the shortfall ...

4. Solar inverter - Wikipedia

   en.wikipedia.org/wiki/Solar_inverter

   The key role of the grid-interactive or synchronous inverters or simply the grid-tie inverter (GTI) is to synchronize the phase, voltage, and frequency of the power line with that of the grid. [8] Solar grid-tie inverters are designed to quickly disconnect from the grid if the utility grid goes down. This is an NEC requirement that ensures that ...

5. 1176 Peak Limiter - Wikipedia

   en.wikipedia.org/wiki/1176_Peak_Limiter

   The faceplate was changed to the original silver faceplate and included a red "Off" button. The only version with a blue "UREI" logo and without "Universal Audio" branding. Re-issue 4 January 2000 101–1959 Reproduction based on C, D and E revisions; most resembling the E model, due to the use of the switchable power transformer. 1960–2946

6. Crest Audio - Wikipedia

   en.wikipedia.org/wiki/Crest_Audio

   In 1983, the 4001 amplifier was the first to provide two-ohms in a three-rack space chassis. Four years later the 8001 power amplifier became an industry standard concert sound amplifier. It was superseded by the 8002 model in 1998. [3] In 1989, Crest audio diversified into mixing consoles with its Gamble EX series. Two years later the company ...

7. BGW Systems - Wikipedia

   en.wikipedia.org/wiki/BGW_Systems

   Wachner co-wrote a paper for the Audio Engineering Society (AES) in 1975, addressing the problem of differing power claims in the amplifier industry and the hope that power rating standards set by the Federal Trade Commission would narrow the 'credibility gap'. [1] BGW introduced an audio crossover product in 1979 and new amplifier lines in '80 ...

8. High-voltage direct current - Wikipedia

   en.wikipedia.org/wiki/High-voltage_direct_current

   Long distance HVDC lines carrying hydroelectricity from Canada's Nelson River to this converter station where it is converted to AC for use in southern Manitoba's grid. A high-voltage direct current (HVDC) electric power transmission system uses direct current (DC) for electric power transmission, in contrast with the more common alternating current (AC) transmission systems. [1]

9. Valve audio amplifier technical specification - Wikipedia

   en.wikipedia.org/wiki/Valve_audio_amplifier...

   The characteristics of valves as gain devices have direct implications for their use as audio amplifiers, notably that power amplifiers need output transformers (OPTs) to translate a high-output-impedance high-voltage low-current signal into a lower-voltage high-current signal needed to drive modern low-impedance loudspeakers (cf. transistors ...