如何让与低压、互感器及母线比较合理的进行配合。
10/0.4kV 变压器与低压、互感器及母线等配合表 wWV开关114 |
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变压器容量 S e wWV开关114 (kVA) wWV开关114 |
阻抗电压 wWV开关114 U k % wWV开关114 |
额定电流 (A) wWV开关114 |
低压出口短路电流 (kA) wWV开关114 |
总出线断 wWV开关114 路器额定 wWV开关114 电 流 (A) wWV开关114 |
互感器变 比 (A) wWV开关114 |
变压器低压侧出线选择 wWV开关114 |
中性点接地线 wWV开关114 |
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母线槽 (A) wWV开关114 |
铜母线 (TMY-) 规格 wWV开关114 |
YJV 电缆规格 wWV开关114 |
铜母线 wWV开关114 |
镀锌 wWV开关114 扁钢 wWV开关114 |
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高压侧 wWV开关114 |
低压侧 wWV开关114 |
I p wWV开关114 |
I k wWV开关114 |
||||||||||
160 wWV开关114 |
4 wWV开关114 |
9.2 wWV开关114 |
231 wWV开关114 |
14.7 wWV开关114 |
5.77 wWV开关114 |
250 wWV开关114 |
300/5 wWV开关114 |
— wWV开关114 |
4(40 4) wWV开关114 |
3 150+1 70 wWV开关114 |
15 3 wWV开关114 |
25 4 wWV开关114 |
|
200 wWV开关114 |
4 wWV开关114 |
11.5 wWV开关114 |
289 wWV开关114 |
18.4 wWV开关114 |
7.22 wWV开关114 |
315 wWV开关114 |
400/5 wWV开关114 |
— wWV开关114 |
4(40 4) wWV开关114 |
3 185+1 95 wWV开关114 |
15 3 wWV开关114 |
25 4 wWV开关114 |
|
250 wWV开关114 |
4 wWV开关114 |
14.5 wWV开关114 |
361 wWV开关114 |
22.95 wWV开关114 |
9.00 wWV开关114 |
400 wWV开关114 |
500/5 wWV开关114 |
630 wWV开关114 |
4(40 4) wWV开关114 |
3 300+1 150 wWV开关114 |
15 3 wWV开关114 |
40 4 wWV开关114 |
|
315 wWV开关114 |
4 wWV开关114 |
18.2 wWV开关114 |
455 wWV开关114 |
28.92 wWV开关114 |
11.34 wWV开关114 |
500 wWV开关114 |
650/5 wWV开关114 |
630 wWV开关114 |
4(50 4) wWV开关114 |
2(3 150)+1 70 wWV开关114 |
20 3 wWV开关114 |
40 4 wWV开关114 |
|
400 wWV开关114 |
4 wWV开关114 |
23.1 wWV开关114 |
578 wWV开关114 |
36.72 wWV开关114 |
14.40 wWV开关114 |
630 wWV开关114 |
800/5 wWV开关114 |
800 wWV开关114 |
4(63 6.3) wWV开关114 |
2(3 185)+1 95 wWV开关114 |
20 3 wWV开关114 |
40 4 wWV开关114 |
|
500 wWV开关114 |
4 wWV开关114 |
28.9 wWV开关114 |
723 wWV开关114 |
45.90 wWV开关114 |
18.00 wWV开关114 |
800 wWV开关114 |
800/5 wWV开关114 |
1000 wWV开关114 |
3(80 6.3)+1(63 6.3) wWV开关114 |
3 2(1 240)+1(1 240) wWV开关114 |
25 3 wWV开关114 |
40 5 wWV开关114 |
|
630 wWV开关114 |
4 wWV开关114 |
36.4 wWV开关114 |
910 wWV开关114 |
57.83 wWV开关114 |
22.68 wWV开关114 |
1000 wWV开关114 |
1000/5 wWV开关114 |
1250 wWV开关114 |
3(80 8)+1(63 6.3) wWV开关114 |
3 2(1 300)+1(1 300) wWV开关114 |
25 3 wWV开关114 |
50 5 wWV开关114 |
|
800 wWV开关114 |
6 wWV开关114 |
46.2 wWV开关114 |
1156 wWV开关114 |
48.96 wWV开关114 |
19.20 wWV开关114 |
1250 wWV开关114 |
1500/5 wWV开关114 |
1600 wWV开关114 |
3(100 8)+1(80 6.3) wWV开关114 |
3 4(1 150)+2(1 150) wWV开关114 |
30 4 wWV开关114 |
50 5 wWV开关114 |
|
1000 wWV开关114 |
6 wWV开关114 |
57.8 wWV开关114 |
1445 wWV开关114 |
61.20 wWV开关114 |
24.00 wWV开关114 |
1600 wWV开关114 |
2000/5 wWV开关114 |
2000 wWV开关114 |
3(125 10)+1(80 8) wWV开关114 |
3 4(1 240)+2(1 240) wWV开关114 |
30 4 wWV开关114 |
50 5 wWV开关114 |
|
1250 wWV开关114 |
6 wWV开关114 |
72.3 wWV开关114 |
1806 wWV开关114 |
76.50 wWV开关114 |
30.00 wWV开关114 |
2000 wWV开关114 |
2500/5 wWV开关114 |
2500 wWV开关114 |
3[2(100 10)]+1(100 10) wWV开关114 |
3 4(1 300)+2(1 300) wWV开关114 |
30 4 wWV开关114 |
63 5 wWV开关114 |
|
1600 wWV开关114 |
6 wWV开关114 |
92.5 wWV开关114 |
2312 wWV开关114 |
97.92 wWV开关114 |
38.40 wWV开关114 |
2500 wWV开关114 |
3000/5 wWV开关114 |
3150 wWV开关114 |
3[2(125 10)]+1(125 10) wWV开关114 |
— wWV开关114 |
40 4 wWV开关114 |
80 5 wWV开关114 |
|
2000 wWV开关114 |
6 wWV开关114 |
115.6 wWV开关114 |
2890 wWV开关114 |
122.4 wWV开关114 |
48.00 wWV开关114 |
3200 wWV开关114 |
4000/5 wWV开关114 |
4000 wWV开关114 |
3[2(125 10)]+1(125 10) wWV开关114 |
— wWV开关114 |
40 4 wWV开关114 |
100 5 wWV开关114 |
|
2500 wWV开关114 |
6 wWV开关114 |
144.5 wWV开关114 |
3613 wWV开关114 |
153.0 wWV开关114 |
60.00 wWV开关114 |
4000 wWV开关114 |
4000/5 wWV开关114 |
5000 wWV开关114 |
3[3(125 10)]+1(125 16) wWV开关114 |
— wWV开关114 |
40 5 wWV开关114 |
80 8 wWV开关114 |
附注: 1. Ip —短路电流峰值; Ik —对称稳态三相短路电流有效值;短路电流计算以上级系统容量无穷大为计算条件。 wWV开关114
计算公式 ① KA ② Ip =2.55Ik wWV开关114
③ 变压器高压侧额定电流 = =Se / ( 1.732 10 ) A , 低压侧额定电流 = =Se / ( 1.732 0.4 ) = 1.443Se A 。 wWV开关114
2. 变压器低压侧接地线按变压器 D,yn11 接法;变压器负序及零序阻抗等于正序阻抗;变压器低压侧 5m ,短路切除时间 0.6s 计算。
3. 变压器低压侧出线按环境温度选择铜芯电缆、铜母线、母线槽,过载系数取 1.25 。单芯电缆并列系数取 0.8 ;多芯电缆并列系数取 0.9 ; YJV 电缆温度系数取 0.96 ;母线温度校正系数取 0.887 。
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