常用電氣計算實例

常用電氣計算實例:變壓器容量計算表??????????????? 名稱
?? 組別????????? "?"額定
功率"?"輸入
容量"?"需要
系數(shù)"?"功率
因數(shù)"?"功率因
數(shù)正切"?"有功
功率"?"無功
功率"?"視在
功率"?"低壓 額定
電流"?"10kV
額定 電流"?"有功功率
同期系數(shù) (0.8~0.9)"?"無功功率
同期系數(shù) (0.93~0.97)"?"無功
功率 補償率"
用電設(shè)備?Pe(kW)?S(kV.A)?Kx?cosφ?tgφ?Pjs(kW)?Qjs(kvar)?Sjs(kV.A)?Ijs(A)?Igs(A)?Kp?Kq?△qc
動力?300.00 ??0.80 ?0.75 ?0.88 ?240.00 ?211.66 ?320.00 ?????
照明?15.00 ??0.75 ?0.80 ?0.75 ?11.25 ?8.44 ?14.06 ?????
?0.00 ???0.70 ?1.02 ?0.00 ?0.00 ?0.00 ?????
?0.00 ???0.70 ?1.02 ?0.00 ?0.00 ?0.00 ?????
?0.00 ???0.70 ?1.02 ?0.00 ?0.00 ?0.00 ?????
?0.00 ???0.70 ?1.02 ?0.00 ?0.00 ?0.00 ?????
?0.00 ???0.70 ?1.02 ?0.00 ?0.00 ?0.00 ?????
?0.00 ???0.70 ?1.02 ?0.00 ?0.00 ?0.00 ?????
?0.00 ???0.70 ?1.02 ?0.00 ?0.00 ?0.00 ?????
?0.00 ???0.70 ?1.02 ?0.00 ?0.00 ?0.00 ?????
?0.00 ???0.70 ?1.02 ?0.00 ?0.00 ?0.00 ?????
?0.00 ???0.70 ?1.02 ?0.00 ?0.00 ?0.00 ?????
?0.00 ???0.70 ?1.02 ?0.00 ?0.00 ?0.00 ?????
?0.00 ???0.70 ?1.02 ?0.00 ?0.00 ?0.00 ?????
?0.00 ???0.70 ?1.02 ?0.00 ?0.00 ?0.00 ?????
?0.00 ???0.70 ?1.02 ?0.00 ?0.00 ?0.00 ?????
合計?315.00 ?????251.25 ?220.10 ?334.02 ?????
同時系數(shù)????0.73 ?0.92 ?226.13 ?209.09 ?307.98 ?467.93 ??0.90 ?0.95 ?
電容補償???????134.77 ??????0.60
電容補償后????0.95 ?0.33 ?226.13 ?74.32 ?238.03 ?361.64 ????
功率損耗??????2.38 ?11.90 ??????
總計???0.78 ?0.94 ??228.51 ?86.23 ?244.23 ?371.07 ????
?????????????
30~16000kV.A容量變壓器??315 ???????454.66 ?18.19 ???
"變壓器負(fù)荷率
0.75 ～0.85"??0.78 ???????????
變壓器應(yīng)選容量為:??315 ??kV.A??無功補償容量為:??135 ?kvar????