电气技术
電氣技術
전기기술
ELECTRICAL ENGINEERING
2012年
7期
63-65
,共3页
变压器高压侧总功率S%变压器功率损耗ST%变压器铁芯功率损耗△ST%变压器绕组%功率损耗△研%系统功率因数cosφ1%低压侧功率因数cosφ2
變壓器高壓側總功率S%變壓器功率損耗ST%變壓器鐵芯功率損耗△ST%變壓器繞組%功率損耗△研%繫統功率因數cosφ1%低壓側功率因數cosφ2
변압기고압측총공솔S%변압기공솔손모ST%변압기철심공솔손모△ST%변압기요조%공솔손모△연%계통공솔인수cosφ1%저압측공솔인수cosφ2
total power transformer high voltage side S%power loss of transformer ST power loss of transformer iron core △S0%power loss of transformer winding △ST%system power factor cosφ1: lowside power factor eosφ2
本文对变压器损耗进行了理论分析和实际计算,确定了变压器处于轻载状态时,系统功率因数较低的主要原因,由于变压器轻载时二次侧负荷电流下降,其不足以启动无功补偿自动控制器工作,变压器的空载无功损耗也得不到补偿。提出手动控制变压器负荷侧无功补偿电容器的投切,使系统功率因数得到提高。达到降低线路功率损耗、减少供电部门对企业的功率因数考核电费,提高企业经济效益的目的。
本文對變壓器損耗進行瞭理論分析和實際計算,確定瞭變壓器處于輕載狀態時,繫統功率因數較低的主要原因,由于變壓器輕載時二次側負荷電流下降,其不足以啟動無功補償自動控製器工作,變壓器的空載無功損耗也得不到補償。提齣手動控製變壓器負荷側無功補償電容器的投切,使繫統功率因數得到提高。達到降低線路功率損耗、減少供電部門對企業的功率因數攷覈電費,提高企業經濟效益的目的。
본문대변압기손모진행료이론분석화실제계산,학정료변압기처우경재상태시,계통공솔인수교저적주요원인,유우변압기경재시이차측부하전류하강,기불족이계동무공보상자동공제기공작,변압기적공재무공손모야득불도보상。제출수동공제변압기부하측무공보상전용기적투절,사계통공솔인수득도제고。체도강저선로공솔손모、감소공전부문대기업적공솔인수고핵전비,제고기업경제효익적목적。
The loss of the transformer is discussed by theoretical analysis and practical calculation, Determine the transformer is in light load condition, System power factor is the main reason of low, Because the transformer when a light load is two side load current falls, Its not enough to activate the reactive compensation automatic controller, Transformer reactive loss is not compensated. Proposed manual control transformer load side reactive compensation capacitor switching, The power factor of the system is improved, To reduce the line loss of power, Reduce the supply department of the enterprise power factor assessment of electricity, The goal that raises business economic benefits.