變壓器用電負(fù)荷計(jì)算表:電 力 負(fù) 荷 計(jì) 算 表????????????
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附表一????????????
序號(hào)?用電設(shè)備名稱(chēng)?數(shù)??? 量??設(shè)備功率(kW)??計(jì)算系數(shù)???計(jì)算負(fù)荷???備??????????? 注
??合??? 計(jì)?其中????????? 工作的?合??? 計(jì)?其中????????? 工作的?Kx?cosψ?tgψ?Pj?Qj?Sj?
?????????(kW)?(kVAr)?(kVA)?
?1＃變壓器???????????
1?電梯?6 ???93?0.7?0.8?0.75 ?65.1?48.83 ??
2?事故照明????54?0.8?0.8?0.75 ?43.2?32.40 ??
3?人防照明及設(shè)備動(dòng)力????36?0.8?0.8?0.75 ?28.8?21.60 ??
4?地下室送風(fēng)風(fēng)機(jī)等????27?0.8?0.8?0.75 ?21.6?16.20 ??
5?設(shè)備用房照明????10?0.8?0.8?0.75 ?8?6.00 ??
6?配電間電力????25?0.8?0.8?0.75 ?20?15.00 ??
7?屋頂節(jié)日燈照明????90?0.9?0.8?0.75 ?81?60.75 ??
7?消防中心????12?1?0.8?0.75 ?12?9.00 ??
8?生活水泵????67.5?0.8?0.8?0.75 ?54?40.50 ??
9?c棟12~21層公寓電源????288?0.55?0.8?0.75 ?158.4?118.80 ??
?小? 計(jì)????702.5????492.1?369.08 ??
?乘以同時(shí)系數(shù)???????????
?Ky=0.92? Kw=0.95????????452.732?350.62 ??
?無(wú)功補(bǔ)償?????????-180.00 ??
?補(bǔ)償后??????0.94 ??452.732?170.62 ?483.82 ?選用一臺(tái)SG10-630KVA
?變壓器容量??????????630.00 ?變壓器，其效率為76.8%