SU1001301A1 - Device for earthing voltage transformer neutral - Google Patents
Device for earthing voltage transformer neutral Download PDFInfo
- Publication number
- SU1001301A1 SU1001301A1 SU813328129A SU3328129A SU1001301A1 SU 1001301 A1 SU1001301 A1 SU 1001301A1 SU 813328129 A SU813328129 A SU 813328129A SU 3328129 A SU3328129 A SU 3328129A SU 1001301 A1 SU1001301 A1 SU 1001301A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- neutral
- resistor
- voltage transformer
- transformer neutral
- earthing
- Prior art date
Links
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- Protection Of Transformers (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Description
мотку 1 высокого напр жени (ВН), обмотки 2 низкого напр жени , маг- . нитопровод 3. В нейтрали 4 обмотки ВН установлены резистор 5 и диод 6. Нейтраль заземлена.hank 1 high voltage (HV), winding 2 low voltage, mag-. nitpipe 3. In the neutral 4 winding HV installed resistor 5 and diode 6. The neutral is grounded.
Устройство работает следующим образом .The device works as follows.
В нормальном режиме работы сети с включением в нейтраль ВН вентил и резистора не вноситс в работу се ,ти никаких изменений. Имеющийс в Сети перекос напр жений вызывает незначительное смещение нейтрали. В разомкнутом треугольнике наводитс 4,3,В, точно так же, как и при глухом заземлении нейтрали.In the normal mode of the network with the inclusion of the HV valve in the neutral and the resistor is not made to the operation of the cross section, no changes will be made. The voltage bias in the network causes a slight neutral displacement. In an open triangle, 4.3, B is induced, just as with a neutral earthing.
При металлическом замыкании на землю фазы А через нейтраль протекают токи замыкани на землю - индуктивный и емкостный. Диод обеспечивает протекание тока пр мой полуволны . При этом напр жение на нейтрали равно нулю. Обратна полуволна тока замыкани на землю протекает через резистор. При этом на нейтрали возникает незначительное напр жение 33 В. Через нейтраль протекает синусоидальный общий ток. Токи в фазах В и С примерно равны и они незначительны 500-100 тД. При этом обеспечиваетс длительна работа трансформатора .In the case of a metallic short circuit to earth, the A phases through the neutral flow the ground fault currents - inductive and capacitive. A diode allows current to flow in a straight half wave. In this case, the voltage on the neutral is zero. The reverse of the half-wave of the earth-close current flows through the resistor. At the same time, an insignificant voltage of 33 V appears on the neutral. A sinusoidal total current flows through the neutral. The currents in phases B and C are approximately equal and they are insignificant 500-100 TD. This ensures long-term operation of the transformer.
Режим заземлени нейтрали с включением в нейтраль вентильно-резисторного устройства становитс более устойчивым .The grounding mode of the neutral with the inclusion of a valve-resistor device in the neutral becomes more stable.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU813328129A SU1001301A1 (en) | 1981-08-07 | 1981-08-07 | Device for earthing voltage transformer neutral |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU813328129A SU1001301A1 (en) | 1981-08-07 | 1981-08-07 | Device for earthing voltage transformer neutral |
Publications (1)
Publication Number | Publication Date |
---|---|
SU1001301A1 true SU1001301A1 (en) | 1983-02-28 |
Family
ID=20973142
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU813328129A SU1001301A1 (en) | 1981-08-07 | 1981-08-07 | Device for earthing voltage transformer neutral |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU1001301A1 (en) |
-
1981
- 1981-08-07 SU SU813328129A patent/SU1001301A1/en active
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