ABB BRIT-90-35-1000 Manual de instrucciones - Página 4

Navegue en línea o descargue pdf Manual de instrucciones para Equipamiento industrial ABB BRIT-90-35-1000. ABB BRIT-90-35-1000 14 páginas. Transformer bushings with rip- insulation, voltage class 35 kv

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ABB Power Grids Ltd.

1 General

The requirements of this instruction apply to 110 kV transformer bushings type BRIT-90-35-200/1000 with

solid RIP-insulation. This manual is designed for operational and maintenance personnel of power stations

and power network and installation companies' staff. The manual provides basic instructions for installation

and maintenance of this type of bushings. The manual does not cover any repair aspects. If a bushing was

damaged during transportation, installation or usage, you should contact to ABB Power Grids Ltd for repair

and retesting.

2 Purpose

Bushings with solid RIP-insulation (resin impregnated paper) are insulators used for getting out high

voltage from a transformer tank and are structurally independent devices. These bushings are intended for

use in UKHL1 and T1 climate (according to GOST15150-69).

3 Technical data

Table 1 outlines the main technical data of these bushings.

Table 1

Type of bushing

Catalogue number of outline drawing

Rated voltage, kV

Rated highest voltage U

Maximum line-to-ground voltage, kV

Dry withstand test voltage (1 min, 50 Hz), kV

Wet withstand test voltage (1 min, 50 Hz), kV

Voltage of test lightning impulse 1.2/50 s, kV

Rated current, A

Partial discharge level at 2,0*U

Maximum angle to vertical

Rated thermal short-time current (Ith) (2 s), кА

Maximum through short circuit current (peak value), kA

Creepage distance (mm) and the relevant degree of

contamination

Arcing distance, mm

Test cantilever load, 1 min, N

Seismic stability, MSK-64

Installation above see level, m

, kV

max

/3, pC

max

GKSL 680205.021 RE

Rev. 2, 26.09.2019

BRIT-90-35-200/1000

КН 1.9.009T

40,5

110

200

1000

< 2

62,5

1400 (IV)

418

1250

≤ 1000