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110kv35kv變電站繼電保護(hù)整定計(jì)算書-展示頁

2024-09-04 13:52本頁面
  

【正文】 且基準(zhǔn)電流為: Ij= Sj/ 3 Up=100/ 3 *=( KA) I”k2=Ij/ XK2 min =( KA) 四、計(jì)算末端 K6302 K6412點(diǎn)的短路參數(shù)( K6302 K6412 各點(diǎn)的阻抗及三相短路電流) ∵ K6302 max= XK2max+X3=+= K6302 min= XK2min+X3=+= 且基準(zhǔn)電流為: Ij= Sj/ 3 Up=100/ 3 *=( KA) ∴ I” 6302 max =Ij/ K6302 max =( KA) I” 6302 min =Ij/ K6302 min=( KA) K6303 max= XK2max+X4=+= K6303 min= XK2min+X4=+= 且基準(zhǔn)電流為: Ij= Sj/ 3 Up=100/ 3 *=( KA) ∴ I” 6303 max =Ij/ K6303max =( KA) I” 6303min =Ij/ K6303 min=( KA) K6304 max= XK2max+X5=+= 4 K6304 min= XK2min+X5=+= 且基準(zhǔn)電流為: Ij= Sj/ 3 Up=100/ 3 *=( KA) ∴ I” 6304 max =Ij/ K6304max =( KA) I” 6304min =Ij/ K6304 min=( KA) K6305 max= XK2max+X6=+= K6305 min= XK2min+X6=+= 且基準(zhǔn)電流為: Ij= Sj/ 3 Up=100/ 3 *=( KA) ∴ I” 6305 max =Ij/ K6305max =( KA) I” 6305min =Ij/ K6305min=( KA) K6306 max= XK2max+X7=+= K6306 min= XK2min+X7=+= 且基準(zhǔn)電流為: Ij= Sj/ 3 Up=100/ 3 *=( KA) ∴ I” 6306max =Ij/ K6306max =( KA) I” 6306min =Ij/ K6306min=( KA) K6307 max= XK2max+X8=+= K6307 min= XK2min+X8=+= 且基準(zhǔn)電流為: Ij= Sj/ 3 Up=100/ 3 *=( KA) ∴ I” 6307max =Ij/ K6307max =( KA) I” 6307min =Ij/ K6307min=( KA) K6308 max= XK2max+X9=+= K6308 min= XK2min+X9=+= 且基準(zhǔn)電流為: Ij= Sj/ 3 Up=100/ 3 *=( KA) ∴ I” 6308max =Ij/ K6308max =( KA) I” 6308min =Ij/ K6308min=( KA) K6309 max= XK2max+X10=+= K6309 min= XK2min+X10=+= 且基準(zhǔn)電流為: Ij= Sj/ 3 Up=100/ 3 *=( KA) ∴ I” 6309max =Ij/ K6306max =( KA) I” 6309min =Ij/ K6306min=( KA) K6311 max= XK2max+X11=+= K6311 min= XK2min+X11=+= 5 且基準(zhǔn)電流為: Ij= Sj/ 3 Up=100/ 3 *=( KA) ∴ I” 6311max =Ij/ K6311max =( KA) I” 6311min =Ij/ K6311min=( KA) K6402 max= XK2max+X12=+= K6402 min= XK2min+X12=+= 且基準(zhǔn)電流為: Ij= Sj/ 3 Up=100/ 3 *=( KA) ∴ I” 6402max =Ij/ K6402max = ( KA) I” 6402min =Ij/ K64028min=( KA) 1 K6403 max= XK2max+X13=+= K6403min= XK2min+X13=+= 且基準(zhǔn)電流為: Ij= Sj/ 3 Up=100/ 3 *=( KA) ∴ I” 6403max =Ij/ K6403max =( KA) I” 6403min =Ij/ K6403min=( KA) 1 K6404 max= XK2max+X14=+= K6404min= XK2min+X14=+= 且基準(zhǔn)電流為: Ij= Sj/ 3 Up=100/ 3 *=( KA) ∴ I” 6404max =Ij/ K6404max =( KA) I” 6404min =Ij/ K6404min=( KA) 1 K6406 max= XK2max+X15=+= K6406min= XK2min+X15=+= 且基準(zhǔn)電流為: Ij= Sj/ 3 Up=100/ 3 *=( KA) ∴ I” 6406max =Ij/ K6406max =( KA) I” 6406min =Ij/ K6406min=( KA) 1 K6407 max= XK2max+X16=+= K6407min= XK2min+X16=+= 且基準(zhǔn)電流為: Ij= Sj/ 3 Up=100/ 3 *=( KA) ∴ I” 6407max =Ij/ K6407max =( KA) I” 6407min =Ij/ K6407min=( KA) 1 K6408max= XK2max+X17=+= K6408min= XK2min+X17=+= 且基準(zhǔn)電流為: Ij= Sj/ 3 Up=100/ 3 *=( KA) 6 ∴ I” 6408max =Ij/ K6408max =( KA) I” 6408min =Ij/ K6408min=( KA) 1 K6409 max= XK2max+X18=+= K6409min= XK2min+X18=+= 且基準(zhǔn)電流為: Ij= Sj/ 3 Up=100/ 3 *=( KA) ∴ I” 6409max =Ij/ K6409max =( KA) I” 6409min =Ij/ K6409min=( KA) 1 K6410 max= XK2max+X19=+= K6410min= XK2min+X19=+= 且基準(zhǔn)電流為: Ij= Sj/ 3 Up=100/ 3 *=( KA) ∴ I” 6410max =Ij/ K6410max =( KA) I” 6410min =Ij/ K6410min=( KA) 1 K6412 max= XK2max+X20=+= K6412min= XK2min+X20=+= 且基準(zhǔn)電流為: Ij= Sj/ 3 Up=100/ 3 *=( KA) ∴ I” 6412max =Ij/ K6412max =( KA) I” 6412min =Ij/ K6412min=( KA) 五、整定計(jì)算 速斷動(dòng)作電流整定公式: Idzj=KkKjxI” d2max/n1 式中: Idzj瞬時(shí)電流速斷保護(hù)裝置的動(dòng)作電流 整定值 ( A); I” d2max最大運(yùn)行方式下線路末端三相短路超瞬變電流( A); Kk可靠系數(shù),取 ; Kjx接線系數(shù),取 1;
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