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7. Feeding system
In our example (figure 25 ), because of the power involved, each 400 kW amplifier block needs its own power supply.
A medium-voltage feeder (11 kV, 20 kV) provides the main 330 V DC voltage source for the amplifier modules.
7.1 Main power source
At 330 V DC, this source is obtained from a medium-voltage transformer with two secondary circuits. The secondary windings are combined using the extended-triangle technique to achieve a 30° phase shift between the two circuits. Each circuit then feeds a water-cooled six-diode bridge rectifier. The two rectifier...
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Feeding system
Control and supervision system
Bibliography
Standardization
International Telecommunication Union (ITU)
Consultative Committee for Radiocommunications (CCIR)
SM. 328-10 (12/99). Emission spectra and bandwidths.
Institute of Electricity and Electronic Engineers (IEEE)
IEEE - 587. Lightning protection.
International Electronics Commission (IEC)
- Règles...
Organizations
International Telecommunication Union (ITU)
International Telecommunication Union (ITU)
Telecommunications Regulatory Authority (ART)
International Electronical...
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Thomcast
Rhode & Schwartz
Telefunken
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