1 Use of power lines for transmission of messages (PLC, BPL)

1.1 Use of power lines for transmission of messages (PLC, BPL)

1. The abbreviation PLC encompasses:

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2. Ripple control systems in power distribution network use the band:

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3. Ripple control transmitters can not be connected to the power distribution network at the secondary side of transformers:

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4. The structure of ripple control code sequence with serial double-commands is as follows:

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5. The operating frequencies commonly used in ripple control systems do correspond to:

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6. Duration of the command code most commonly used in the Czech Republic is:

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7. Parameters of high-frequency PLC systems in the Czech Republic are the following:

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8. Narrowband PLC systems use (according to the EN 50065-1 standard) the band:

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9. Broadband PLC systems (BPL) operate most usually with the following parameters:

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10. BPL systems in public power distribution network (outdoor part) most commonly use the frequecies:

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11. BPL systems in private section of the power distribution network (indoor part – i.e. in buildings) commonly use the frequencies:

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12. BPL systems most commonly use the following modulation methods:

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13. Which modulation allows selective disabling of a disturbed frequency band at the expense of lower transmission speed?

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14. Which PLC systems suffer from the most serious EMC problems?

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15. Contemporary overhead very-high voltage power lines use for communication purposes optical cable

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16. Ripple control systems in power distribution network are used to transmit signals

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17. Static frequency converters in ripple control transmitters on the secondary side of a 110 kV / 22 kV transformer commonly operate with the output power

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18. The ripple control receivers using the principle of serialized double-commands can recognize

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19. Which applications cannot be implemented with the help of ripple control?

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20. Narrowband telematic PLC systems can commonly reach the distance of

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Evaluate your answer