SU773938A1 - Device for transmitting and receiving information over low-voltage electric mains lines - Google Patents
Device for transmitting and receiving information over low-voltage electric mains lines Download PDFInfo
- Publication number
- SU773938A1 SU773938A1 SU772486847A SU2486847A SU773938A1 SU 773938 A1 SU773938 A1 SU 773938A1 SU 772486847 A SU772486847 A SU 772486847A SU 2486847 A SU2486847 A SU 2486847A SU 773938 A1 SU773938 A1 SU 773938A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- transmitting
- receiving information
- information over
- voltage electric
- over low
- Prior art date
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- Supply And Distribution Of Alternating Current (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Description
На чертеже представлена принципиальна электрическа схема устройства .The drawing shows a circuit diagram of the device.
Устройство содержит приемо-передающие блоки 1, включенные по схеме фаза-нулевой провод к управл емой части 2 электрической четырехпровод .ной сети , не заземленный нулевой проврд 3 которой подключен к заземленной шине 4 неуправл емой части 5 электрической сети через реактор 6. Провод 7 объедин ет нулевые провода 3 управл емых частей 2 электрической сети различных сетевых трансформаторов 8.The device contains transmit-receive units 1, connected according to the phase-zero wire scheme to the controlled part 2 of the electrical four-wire network, which is not grounded to the neutral wire 3 of which is connected to the grounded bus 4 of the uncontrolled part 5 of the electrical network through the reactor 6. Wire 7 is unified The zero wires of 3 controlled parts 2 of the electrical network of various network transformers 8.
Устройство работает следующим образом .The device works as follows.
Сигнал несущей частоты, возбуждаемый в, приемо-передагадем блоке 1 вводитс в электрическую сеть низкого напр жени сетевого трансформатора 8 между одной из фаз и нулевым проводом 3 и распростран етс в управл емую часть 2. и неуправл емую часть 5. электрической сети. В неуправл емой части 5 электрической сети напр жени несущей частоты распредел етс между последовательно включенными импедансами фазы сетевого трансформатора 8 и реактора б. На входы пpиe ю-пepeдш щих блоков 1, включаемых между нулевым проводом 3 и другими фазами, подаетс напр жение, равное падению напр жени несущей -частоты на импеданс реактора б.The carrier frequency signal driven by the transceiver unit 1 is introduced into the low voltage power network of the mains transformer 8 between one of the phases and the neutral wire 3 and propagates into the controlled part 2. and the unmanaged part of the electrical network. In the uncontrolled part 5 of the electrical network, the carrier voltage is distributed between the series-connected impedances of the phase of the network transformer 8 and the reactor b. The inputs of the first-leading blocks 1, connected between the neutral wire 3 and other phases, are supplied with a voltage equal to the voltage drop of the carrier frequency to the impedance of the reactor. B.
За.счет того, что незаземленные нулевые провода 3 управл емых частей 2 электрической сети подключаютс к заземленным шинам 4 сетевых трансформаторов 8 через реакторы б, импедансы которых (пор дка единиц Ома) значительно больше разных импедансов -сетевых трансформаторов 8, . достигаетс исключение необходимости фазировки при подключении приемопередающих блоков. Поскольку шины 4 сетевых трансформаторов 8 со стороны низкого напр жени заземлены, объединив нулевые провода управл емых частей 2 электрической сети различных сетевых трансформаторов 8, напр жение сигнала несущей частоты можно контролировать между любой из фаз и нулевым проводом управл емых частей электрической сети всех используемых сетевых трансформаторов.It is worth noting that the ungrounded neutral wires of the 3 controlled parts 2 of the electrical network are connected to the grounded busbars 4 of the network transformers 8 via reactors b, the impedances of which (on the order of Ohm units) are much greater than the different impedances of the network transformers 8,. it eliminates the need for phasing when connecting transceiver units. Since the buses 4 of the network transformers 8 on the low voltage side are grounded by combining the neutral wires of the controlled parts 2 of the electrical network of different network transformers 8, the voltage of the carrier frequency signal can be monitored between any of the phases and the neutral wire of the controlled parts of the electrical network of all used transformers .
Устройство позвол ет использовать максимальное количество пользователеThe device allows you to use the maximum number of users
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772486847A SU773938A1 (en) | 1977-05-16 | 1977-05-16 | Device for transmitting and receiving information over low-voltage electric mains lines |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU772486847A SU773938A1 (en) | 1977-05-16 | 1977-05-16 | Device for transmitting and receiving information over low-voltage electric mains lines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU773938A1 true SU773938A1 (en) | 1980-10-23 |
Family
ID=20709346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU772486847A SU773938A1 (en) | 1977-05-16 | 1977-05-16 | Device for transmitting and receiving information over low-voltage electric mains lines |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU773938A1 (en) |
-
1977
- 1977-05-16 SU SU772486847A patent/SU773938A1/en active
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