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Revision as of 00:47, 23 January 2015 editOrduin (talk | contribs)Pending changes reviewers, Rollbackers5,286 edits Reverted good faith edits by Cyntiamaspian (talk): The powerline does not run DC current, and 1100 is the maximum. Also metres is the british english spelling. (TW)← Previous edit Revision as of 01:02, 23 January 2015 edit undoOrduin (talk | contribs)Pending changes reviewers, Rollbackers5,286 editsm Reverted 1 edit by Orduin (talk) to last revision by Cyntiamaspian. (TW)Next edit →
Line 32: Line 32:
| capacity = | capacity =
| AC_voltage = 500 kV | AC_voltage = 500 kV
| DC_voltage = | DC_voltage = 1100 kV
| poles_no = | poles_no =
| circuits_no = 2 | circuits_no = 2
}} }}
The '''Kita-Iwaki Powerline''' is the largest ] powerline for ] in the world, which was built in 1999. It runs from Minami-Iwaki switch (]) to Higashi-Yamanashi substation (]) and has 2 circuits, which are operated at present with 500 ], but can be switched over to 1100 kV if necessary equipment will be installed. The conductors of the lines consist of 8*31.5 mm ] ropes providing for a total current capacity of 4000 ]s. The '''Kita-Iwaki Power line''' is the largest ] power line for ] in the world, which was built in 1999. It runs from Minami-Iwaki switch (]) to Higashi-Yamanashi substation (]) and has 2 circuits, which are operated at present with 500 ], but can be switched over to 1100 kV if necessary equipment will be installed. The conductors of the lines consist of 8*31.5 mm ] ropes providing for a total current capacity of 4000 ]s.
The line is supported by ] ] with a typical height of 108 metres. These have three crossbars of spanning 31, 32 and 33 metres. The line is supported by ] ] with a typical height of 108 meters. These have three crossbars of spanning 31, 32 and 33 meters.


There are two such lines: the first one is 190 kilometres long and starts at ] and runs over Nishi-Gunma switch to Higashi-Yamanashi substation. It was built in 1993. There are two such lines: the first one is 190 kilometers long and starts at ] and runs over Nishi-Gunma switch to Higashi-Yamanashi substation. It was built in 1993.
The second 240 kilometres long line, which was built in 1999 starts at Nishi-Gunma substation and runs over Higashi-Gunma substation to Minami-Iwaki switch, whereby it passes close to Shin-Imaichi switch, which is not connected to the line. The second 240 kilometers long line, which was built in 1999 starts at Nishi-Gunma substation and runs over Higashi-Gunma substation to Minami-Iwaki switch, whereby it passes close to Shin-Imaichi switch, which is not connected to the line.


==Sites== ==Sites==

Revision as of 01:02, 23 January 2015

Kita-Iwaki Powerline
Location
CountryJapan
Coordinates35°35′26″N 138°47′59″E / 35.59056°N 138.79972°E / 35.59056; 138.79972
36°34′33″N 139°13′25″E / 36.57583°N 139.22361°E / 36.57583; 139.22361
37°25′33″N 138°35′51″E / 37.42583°N 138.59750°E / 37.42583; 138.59750
37°22′53″N 140°48′16″E / 37.38139°N 140.80444°E / 37.38139; 140.80444
36°37′22″N 138°48′6″E / 36.62278°N 138.80167°E / 36.62278; 138.80167
36°42′46″N 139°49′57″E / 36.71278°N 139.83250°E / 36.71278; 139.83250
FromMinami-Iwaki switch
ToHigashi-Yamanashi substation
Construction information
Commissioned1999
Technical information
Total length240 km (150 mi)
AC voltage500 kV
DC voltage1100 kV
No. of circuits2

The Kita-Iwaki Power line is the largest double-circuit power line for three-phase electric power in the world, which was built in 1999. It runs from Minami-Iwaki switch (Tamura, Fukushima) to Higashi-Yamanashi substation (Ōtsuki, Yamanashi) and has 2 circuits, which are operated at present with 500 kV, but can be switched over to 1100 kV if necessary equipment will be installed. The conductors of the lines consist of 8*31.5 mm ACSR ropes providing for a total current capacity of 4000 Amperes. The line is supported by lattice towers with a typical height of 108 meters. These have three crossbars of spanning 31, 32 and 33 meters.

There are two such lines: the first one is 190 kilometers long and starts at Kashiwazaki-Kariwa Nuclear Power Plant and runs over Nishi-Gunma switch to Higashi-Yamanashi substation. It was built in 1993. The second 240 kilometers long line, which was built in 1999 starts at Nishi-Gunma substation and runs over Higashi-Gunma substation to Minami-Iwaki switch, whereby it passes close to Shin-Imaichi switch, which is not connected to the line.

Sites

Substation/switch Coordinates
Higashi-Yamanashi 35°35′26″N 138°47′59″E / 35.59056°N 138.79972°E / 35.59056; 138.79972 (Higashi-Yamanashi substation)
Higashi-Gunma 36°34′33″N 139°13′25″E / 36.57583°N 139.22361°E / 36.57583; 139.22361 (Higashi-Gunma substation)
Kashiwazaki-Kariwa 37°25′33″N 138°35′51″E / 37.42583°N 138.59750°E / 37.42583; 138.59750 (Kashiwazaki-Kariwa)
Minami-Iwaki 37°22′53″N 140°48′16″E / 37.38139°N 140.80444°E / 37.38139; 140.80444 (Minami-Iwaki switch)
Nishi-Gunma 36°37′22″N 138°48′6″E / 36.62278°N 138.80167°E / 36.62278; 138.80167 (Nishi-Gunma switch)
Shin-Imaichi 36°42′46″N 139°49′57″E / 36.71278°N 139.83250°E / 36.71278; 139.83250 (Shin-Imaichi switch)
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