RETROFITTING THE CONTROL SYSTEM FOR SPEEDSWITCHING OF DOUBLESPEED MOTORS USED FOR DRIVING INDUCED DRAFT FANS OF 350 MW UNITS

doi:10.19666/j.rlfd.2004.01.009

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RETROFITTING THE CONTROL SYSTEM FOR SPEEDSWITCHING OF DOUBLESPEED MOTORS USED FOR DRIVING INDUCED DRAFT FANS OF 350 MW UNITS

Thermal Power Generation Issue 1, Pages: 32-33(2004)

更新时间：2025-09-28

- RETROFITTING THE CONTROL SYSTEM FOR SPEEDSWITCHING OF DOUBLESPEED MOTORS USED FOR DRIVING INDUCED DRAFT FANS OF 350 MW UNITS
- 作者机构：
  
  1. 华能南通电厂,江苏,南通,226003
  2. ,江苏,南通,226003
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.2004.01.009
  CLC： TK223.26
- Published：2004
- 稿件说明：
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RETROFITTING THE CONTROL SYSTEM FOR SPEEDSWITCHING OF DOUBLESPEED MOTORS USED FOR DRIVING INDUCED DRAFT FANS OF 350 MW UNITS[J]. Thermal Power Generation, 2004, (1): 32-33.
DOI：

RETROFITTING THE CONTROL SYSTEM FOR SPEEDSWITCHING OF DOUBLESPEED MOTORS USED FOR DRIVING INDUCED DRAFT FANS OF 350 MW UNITS[J]. Thermal Power Generation, 2004, (1): 32-33. DOI： 10.19666/j.rlfd.2004.01.009.

摘要

介绍华能南通电厂对 35 0MW机组引风机高低速切换装置进行改造的经验。通过采用电气开关柜启停的切速控制方法

将原切换刀闸控制改为 2只 6kV高低速开关柜间的启停切换

实现了对 2台锅炉引风机电动机切换控制系统的改造。与此同时

为减少引风机切速对炉膛压力的扰动量

对炉膛压力调节系统也进行了相应的修改。

Abstract

The experience of retrofitting the highlow speed switching facilities for induced draft fans of 350 MW units in Huaneng Nantong Power Plant has been presented. Through startstop speedswitching control method by using electric switch carbinet

the original isolating switch control is replaced by startstop switching through two 6 kV highlow speed switching carbinets

realizing the retrofit of switching control system of motors used for driving induced draft fans of two boilers. At the same time

in order to reduce the perturbation influence of speedswitching for incluced draft fans upon the pressure in furnace

the regulating system of pressure in the furnace has also been modified correspondingly.

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