Approaches of the OHTL 500 kV to 500 kV Substation “Yenisey”

Approaches of the OHTL 500kV to SS 500kV  «Yenicey»

JSC "Ural Power Engineering Construction Company" executes works on the building of  the  approaches of the OHTL  500kV to SS 500kV  Yenicey (total extension of 3.9476 km):


- approach of the OHTL 500 kV  Yenisey - Krasnoyarskaya 1 (= 1058,2m);


- approach of the OHTL  500 kV  Yenisey - Krasnoyarskaya 2 (= 957,7m);


-  approach of the OHTL  500 kV  Krasnoyarskaya HPP- SS Yenisei 1 (= 981,5m);


- approach of the OHTL  500 kV  Krasnoyarskaya HPP- SS Yenisey 2 (= 950,2m).

Construction is carried out in a suburban area of the  city  Krasnoyarsk, in Yemelyanovsky area, in the central part of the Krasnoyarsk region.

OHTL 500kV Krasnoyarskaya HPP-SS Krasnoyarskaya №511 from the side of  Krasnoyarskaya  HPP  on the  SS Yenisei is carried out  on the constant plan   with the formation of the  new OHTL 500kV  Krasnoyarskaya HPP - Yenisey №1.

OHTL 500kV Krasnoyarskaya HPP-SS Krasnoyarskaya № 512 on the SS Yenisei is carried out  with the formation of  two new OHTL(s) - OHTL 500 kV  Krasnoyarskaya  HPP -Yenisey №2 and OHTL 500kV Yenisei – Krasnoyarskaya №2.

Projected   approaches  of the OHTL 500kV cross  projected  OHTL 220 ​​kV Yenisei - Abalakovskaya and projected OHTL 10 kV SS KISK - SS 500 kV Yenisei.

Constructive  execution  of the OHTL   supposes using  of  anchor-angular metal three-rack towers U2, U2T, U2K type. Metal freestanding towers SS 500-3          on series 3539tm are  taken as an intermediate towers on the projected approaches  of the OHTL 500kV.

Reinforced  foundations   are taken as unified on series 3.407-115.



Non-insulated steel-aluminum wires of  the  brand ASKS500 / 64 with  three  wires in  phase are selected as the phased wire  on the projected approaches  of the OHTL 500kV Krasnoyarskaya HPP -Yenisey№1 to  SS 500kV Yenisei

Intraphase   spacer-extinguishers 3RGD type, manufactured by JSC "Aston-Energo" are  installed  in bays   on the wires ASKS 500/64 . Spacers type RU are installed   in loops of   anchor-angular towers.


Ground wire is steel-aluminum wires of the brand ASKS70 / 72.

Ground wire of  the  brand OPGW is suspended as  lightning protection wires on the approach of the OHTL 500 kV  Krasnoyarskaya HPP -Yenisey №2 and on the approach of the OHTL 500kV Yenisey- Krasnoyarskaya №2.

Glass  insulators  of the brand PSD70E, PSV120B, PSV210A, pressed fittings are used on the approach.

Transposition.

Twisting of phases is provided for output  on  phasing SS Yenisei on the projected approach of the OHTL 500kV Yenisey - Krasnoyarskaya 2.  Two types of transposition  towers  - U2 + 12T type and U2 + 12Tm type are used for this purpose.