35 kV electrical equipment

ВРП-35 outdoor switchgear

ВРП-35 outdoor switchgear for power transfer and distribution. Review the modular arrangement, equipment configuration and 35 kV technical data.

Rated voltage, kV
35
Maximum operating voltage, kV
40,5
Rated main-circuit current, A
630
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Overview

Application

ВРП-35 transmits, receives and distributes three-phase energy at 50 Hz and a rated voltage of 35 kV in networks with an isolated or reactor-earthed neutral. It is used in КТПБ-220/35/6(10), КТПБ-110/35/6(10), КТПБ-35/6(10) kV substations and standalone 35 kV switchgear serving industrial, municipal and agricultural consumers and major construction sites.

Features

Construction and application

ВРП-35 is manufactured to standard arrangements ДТ, 4Н, 5АН, 9 and others. It includes factory-made 35 kV blocks on a metal modular supporting frame with high-voltage equipment, auxiliary transformers, high-frequency communications equipment and auxiliary circuits; busbar and bay gantries; rigid and flexible busbars; cable structures, trays and single-/double-row supports; contact and tension fittings; and secondary switching cabinets.

Blocks accommodate domestic or imported equipment and are installed on prepared foundations, sleepers or УСО supports. Factory-made transportable blocks are delivered separately for assembly on prepared foundations, electrical installation and commissioning at the site.

Both rigid and flexible busbars are used. Flexible busbars connect incomer blocks and power transformers. ВРП-35 complies with ТУ У 31.2-31681625-021:2010.

Designation Б 35 Х – Х/Х-Х Х: Б — high-voltage equipment mounting block; 35 — rated voltage, kV; Х — insulation category under ГОСТ 9920; Х — version number; Х — distinguishing index: К — terminal cabinet, П — raised block (height from finished ground level to the equipment lower flange is additionally specified); Х — rated main-circuit current, A; Х — climatic version and installation category under ГОСТ 15150: У1 or УХЛ1.

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Technical specifications

ParameterValue
Rated voltage, kV35
Maximum operating voltage, kV40,5
Rated main-circuit current, A630
Rated busbar current, A1000
Rated circuit-breaker current, A1000,1600
Busbar thermal withstand current for “Зс” (source notation), kA12,5
Through short-circuit current (peak), kA25
Rated frequency, Hz50
External insulation category under ГОСТ 9920-89I or II
Climatic versionУ1; УХП1
Maximum mass, kg3000

Documents

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