就地补偿是在异步电动机附近设置电容器，对异步电动机进行无功功率补偿，这是最有效的补偿方法。其作用：
将电容器装在箱内，至于电动机附近，对其进行单独就地补偿。将电容器直接接到电动机的端子上或保护设备的末端，称为直接单独就地补偿。将电容器接到保护设备的前端，采用控制设备，电容器采用熔断器保护，称为控制式单独就地补偿。
就地补偿电容器容量表
Y系列380伏三相异步电动机就地补偿电容器容量kvar
|
电动机容量KW |
2极 |
4极 |
6极 |
8极 |
10极 |
|
0.75 |
0.4 |
0.5 |
0.6 |
||
|
1.1 |
0.5 |
0.6 |
0.8 |
||
|
1.5 |
0.6 |
0.8 |
1.0 |
||
|
2.2 |
0.8 |
1.0 |
1.5 |
2.0 |
|
|
3.0 |
1.0 |
2.0 |
2.0 |
2.5 |
|
|
4.0 |
1.5 |
.2.5 |
2.5 |
3.0 |
|
|
5.5 |
2.0 |
2.5 |
3.0 |
4.0 |
|
|
7.5 |
3.0 |
3.5 |
4.0 |
5.0 |
|
|
11 |
4.0 |
5.0 |
6.0 |
7.0 |
|
|
15 |
4.0 |
6.0 |
8.0 |
9.0 |
|
|
18.5 |
5.0 |
8.0 |
9.0 |
12.0 |
|
|
22 |
7.0 |
9.0 |
10.0 |
14.0 |
|
|
30 |
10.0 |
10.0 |
10.0 |
16.0 |
|
|
37 |
12.0 |
12.0 |
12.0 |
18.0 |
|
|
45 |
12.0 |
14.0 |
14.0 |
24.0 |
35.0 |
|
55 |
14.0 |
16.0 |
20.0 |
30.0 |
45.0 |
|
75 |
20.0 |
20.0 |
24.0 |
35.0 |
60.0 |
|
90 |
24.0 |
24.0 |
30.0 |
40.0 |
|
|
110 |
30.0 |
35.0 |
40.0 |
45.0 |
|
|
130 |
35.0 |
40.0 |
45.0 |
||
|
160 |
45.0 |
50.0 |
YX系列380伏三相异步电动机就地补偿电容器容量kvar
|
电机容量KW |
2极 |
4极 |
6极 |
电机容量KW |
2极 |
4极 |
6极 |
|
1.5 |
1 |
18.5 |
4.5 |
6.5 |
7.5 | ||
|
2.2 |
1 |
1.5 |
22 |
5 |
7 |
8 | |
|
3 |
0.8 |
1.25 |
2 |
30 |
6.5 |
8.5 |
10 |
|
4 |
1 |
1.5 |
2 |
37 |
8 |
10 |
12.5 |
|
5.5 |
1.25 |
2 |
3 |
45 |
9.5 |
12.5 |
14 |
|
7.5 |
1.8 |
2.5 |
4 |
55 |
13 |
14 |
16 |
|
11 |
3 |
4 |
6 |
75 |
18 |
20 |
|
|
15 |
3.5 |
5 |
7 |
90 |
20 |
22 |
