RU96121027A - ELECTRIC TRANSMISSION LINE WITH DEVICES FOR PROTECTION AGAINST THUNDER OVERVOLTAGES (OPTIONS) - Google Patents
ELECTRIC TRANSMISSION LINE WITH DEVICES FOR PROTECTION AGAINST THUNDER OVERVOLTAGES (OPTIONS)Info
- Publication number
- RU96121027A RU96121027A RU96121027/09A RU96121027A RU96121027A RU 96121027 A RU96121027 A RU 96121027A RU 96121027/09 A RU96121027/09 A RU 96121027/09A RU 96121027 A RU96121027 A RU 96121027A RU 96121027 A RU96121027 A RU 96121027A
- Authority
- RU
- Russia
- Prior art keywords
- dielectric
- power line
- specified
- wire
- protected
- Prior art date
Links
- 230000005540 biological transmission Effects 0.000 title 1
- 238000009413 insulation Methods 0.000 claims 10
- 239000012212 insulator Substances 0.000 claims 4
- 239000000789 fastener Substances 0.000 claims 3
- 238000002955 isolation Methods 0.000 claims 3
- 230000015556 catabolic process Effects 0.000 claims 1
- 239000004020 conductor Substances 0.000 claims 1
- 239000003989 dielectric material Substances 0.000 claims 1
- 230000003334 potential Effects 0.000 claims 1
Claims (10)
где D - длина оболочки из диэлектрика, м;
h - длина пути перекрытия защищаемого элемента изоляции линии, м;
n - число проводов, покрытых оболочкой из диэлектрика, к которым подключен защищаемый элемент изоляции, (n = 1 или 2);
U - номинальное напряжение, кВ.1. Power line, comprising at least one wire, at least one grounded support, at least one insulation element of said wire from other line elements under electric potential different from the potential of said wire, and also means for protecting said insulation element from lightning overvoltage, characterized in that the said means of protection are made in the form of a sheath of dielectric material placed on at least one specified wire in the zone of protection the sought insulation element, and the breakdown voltage of the specified dielectric is higher than the discharge voltage on its surface, and the length of the specified shell of the dielectric is determined by the following ratio:
where D is the length of the shell of the dielectric, m;
h is the length of the overlapping path of the protected line insulation element, m;
n is the number of wires covered by a sheath of dielectric to which the protected insulation element is connected (n = 1 or 2);
U is the rated voltage, kV.
0,06U0,75 - h < l < 0,5U0,75 - h,
где l - расстояние от конца оболочки из диэлектрика до крепежного элемента, м;
h - длина пути перекрытия защищаемого изолятора, м;
U - номинальное напряжение линии, кВ.5. The power line according to claim 1, characterized in that the specified insulation element is made in the form of an insulator mounted on the specified support, and the specified sheath of a dielectric is placed on the specified wire in the area of its attachment to the protected insulator, while on the outer surface of the specified dielectric a fastener is installed to connect the specified wire to the insulator to be protected, and the distance from the fastener to the end of the specified dielectric sheath is determined by the following ratio:
0.06U 0.75 - h <l <0.5U 0.75 - h,
where l is the distance from the end of the dielectric sheath to the fastener, m;
h is the length of the overlapping path of the insulator to be protected, m;
U is the nominal line voltage, kV.
0,06U0,75 < l < 0,5U0,75,
где l - длина разделки, м;
U - номинальное напряжение линии, кВ.8. A power line comprising at least one support, at least one wire fixed to this support, at least one insulation element of said wire from said support, at least one cable entry with a groove, and also means for protecting said element isolation from lightning overvoltages, characterized in that the said protection means are made in the form of a groove, and the isolation of the groove is made so that the discharge voltage along the surface of the groove is lower than the discharge voltage of the protected element and isolation, and the length of the cut is determined by the following ratio:
0.06U 0.75 <l <0.5U 0.75 ,
where l is the length of the cut, m;
U is the nominal line voltage, kV.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU96121027A RU2133538C1 (en) | 1996-09-30 | 1996-09-30 | Electric power line with gears for protection against lightning surges |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU95119890/07 | 1996-07-02 | ||
RU96121027A RU2133538C1 (en) | 1996-09-30 | 1996-09-30 | Electric power line with gears for protection against lightning surges |
Publications (2)
Publication Number | Publication Date |
---|---|
RU96121027A true RU96121027A (en) | 1998-11-27 |
RU2133538C1 RU2133538C1 (en) | 1999-07-20 |
Family
ID=20186853
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU96121027A RU2133538C1 (en) | 1996-09-30 | 1996-09-30 | Electric power line with gears for protection against lightning surges |
Country Status (1)
Country | Link |
---|---|
RU (1) | RU2133538C1 (en) |
-
1996
- 1996-09-30 RU RU96121027A patent/RU2133538C1/en active
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