1. 小功率电动机
GB 25958-2010（小功率电动机能效限定值及能效等级）规定了小功率电动机的能效要求。该标准发布于
GB 25958-2010适用于690V及以下的电压和50Hz交流电源供电的小功率三相异步电动机（10W～2200W）、电容运转异步电动机（10W～2200W）、电容起动异步电动机（120W～3700W）、双值电容异步电动机（250W～3000W）等一般用途电动机，以及房间空调风扇电动机（6W～550W）。
GB 25958-2010将小功率电动机的能效等级分为3级，其中1级为能效等级最高。各等级电动机在额定输出功率时的效率均应不低于表1至表5中的规定。小功率电动机各能效等级效率的容差应符合GB/T 5171及相应产品标准的规定。表1至表5中未列出额定功率值的电动机，其效率可用插值法确定。
表1 小功率三相异步电动机能效等级级效率
|
额定功率W |
能效等级 |
||||||||
|
1级 |
2级 |
3级 |
|||||||
|
2极 |
4极 |
6极 |
2极 |
4极 |
6极 |
2极 |
4极 |
6极 |
|
|
10 |
-- |
35.0 |
-- |
-- |
31.4 |
-- |
-- |
28.0 |
-- |
|
16 |
54.1 |
39.4 |
-- |
50.1 |
35.6 |
-- |
46.0 |
32.0 |
-- |
|
25 |
60.0 |
50.1 |
-- |
56.0 |
46.0 |
-- |
52.0 |
42.0 |
-- |
|
40 |
62.8 |
58.1 |
-- |
59.0 |
54.1 |
-- |
55.0 |
50.0 |
-- |
|
60 |
67.5 |
63.8 |
-- |
63.8 |
60.0 |
-- |
60.0 |
56.0 |
-- |
|
90 |
69.3 |
65.7 |
-- |
65.7 |
61.9 |
-- |
62.0 |
58.0 |
-- |
|
120 |
73.8 |
67.5 |
-- |
70.5 |
63.8 |
-- |
67.0 |
60.0 |
-- |
|
180 |
75.5 |
71.1 |
66.6 |
72.4 |
67.7 |
62.9 |
69.0 |
64.0 |
59.0 |
|
250 |
78.1 |
73.8 |
70.2 |
75.2 |
70.5 |
66.7 |
72.0 |
67.0 |
63.0 |
|
370 |
79.3 |
75.9 |
74.6 |
76.5 |
72.8 |
71.4 |
73.5 |
69.5 |
68.0 |
|
550 |
81.0 |
79.3 |
77.2 |
78.4 |
76.5 |
74.2 |
75.5 |
73.5 |
71.0 |
|
750 |
-- |
-- |
-- |
-- |
-- |
-- |
77.4 |
79.6 |
75.9 |
|
1100 |
-- |
-- |
-- |
-- |
-- |
-- |
79.6 |
81.4 |
78.1 |
|
1500 |
-- |
-- |
-- |
-- |
-- |
-- |
81.3 |
82.8 |
79.8 |
|
2200 |
-- |
-- |
-- |
-- |
-- |
-- |
83.2 |
84.3 |
81.8 |
表2 电容运转异步电动机能效等级级效率
|
额定功率W |
能效等级 |
||||||||
|
1级 |
2级 |
3级 |
|||||||
|
2极 |
4极 |
6极 |
2极 |
4极 |
6极 |
2极 |
4极 |
6极 |
|
|
10 |
-- |
30.4 |
-- |
-- |
27.1 |
-- |
-- |
24.0 |
-- |
|
16 |
42.7 |
40.5 |
-- |
38.8 |
36.7 |
-- |
35.0 |
33.0 |
-- |
|
25 |
48.0 |
45.9 |
-- |
44.0 |
41.9 |
-- |
40.0 |
38.0 |
-- |
|
40 |
55.1 |
53.1 |
-- |
51.1 |
49.0 |
-- |
47.0 |
45.0 |
-- |
|
60 |
60.9 |
58.1 |
-- |
57.0 |
54.1 |
-- |
53.0 |
50.0 |
-- |
|
90 |
63.8 |
60.0 |
-- |
60.0 |
56.0 |
-- |
56.0 |
52.0 |
-- |
|
120 |
67.5 |
64.7 |
60.9 |
63.8 |
60.9 |
57.0 |
60.0 |
57.0 |
53.0 |
|
180 |
72.0 |
66.6 |
62.8 |
68.6 |
62.9 |
59.0 |
65.0 |
59.0 |
55.0 |
|
250 |
72.9 |
68.4 |
64.7 |
69.5 |
6.48 |
60.9 |
66.0 |
61.0 |
57.0 |
|
370 |
73.8 |
69.3 |
65.7 |
70.5 |
65.7 |
61.9 |
67.0 |
62.0 |
58.0 |
|
550 |
76.4 |
71.1 |
69.3 |
73.3 |
67.7 |
65.7 |
70.0 |
64.0 |
62.0 |
|
750 |
78.1 |
74.6 |
72.0 |
75.2 |
71.4 |
68.6 |
72.0 |
68.0 |
65.0 |
|
1100 |
80.6 |
77.2 |
-- |
77.9 |
74.2 |
-- |
75.0 |
71.0 |
-- |
|
1500 |
81.4 |
78.9 |
-- |
78.8 |
76.1 |
-- |
76.0 |
73.0 |
-- |
|
2200 |
82.2 |
-- |
-- |
79.8 |
-- |
-- |
77.0 |
-- |
-- |
表3 电容起动异步电动机能效等级级效率
|
额定功率W |
能效等级 |
||||||||
|
1级 |
2级 |
3级 |
|||||||
|
2极 |
4极 |
6极 |
2极 |
4极 |
6极 |
2极 |
4极 |
6极 |
|
|
120 |
-- |
58.1 |
-- |
-- |
54.1 |
-- |
-- |
50.0 |
-- |
|
180 |
67.5 |
60.9 |
-- |
63.8 |
57.0 |
-- |
60.0 |
53.0 |
-- |
|
250 |
71.1 |
65.7 |
61.9 |
67.7 |
61.9 |
58.0 |
64.0 |
58.0 |
54.0 |
|
370 |
72.0 |
69.3 |
65.7 |
68.6 |
65.7 |
61.9 |
65.0 |
62.0 |
58.0 |
|
550 |
74.6 |
72.9 |
67.5 |
71.4 |
69.5 |
63.8 |
68.0 |
66.0 |
60.0 |
|
750 |
76.4 |
74.6 |
68.4 |
73.3 |
71.4 |
64.8 |
70.0 |
68.0 |
61.0 |
|
1100 |
78.1 |
77.2 |
70.2 |
75.2 |
74.2 |
66.7 |
72.0 |
71.0 |
63.0 |
|
1500 |
79.8 |
78.9 |
74.6 |
77.0 |
76.1 |
71.4 |
74.0 |
73.0 |
68.0 |
|
2200 |
80.6 |
79.8 |
76.4 |
77.9 |
77.0 |
73.3 |
75.0 |
74.0 |
70.0 |
|
3000 |
81.4 |
80.6 |
-- |
78.8 |
77.9 |
-- |
76.0 |
75.0 |
-- |
|
3700 |
82.2 |
81.4 |
-- |
79.8 |
78.8 |
-- |
77.0 |
76.0 |
-- |
表4 双值电容异步电动机能效等级级效率
|
额定功率W |
能效等级 |
|||||
|
1级 |
2级 |
3级 |
||||
|
2极 |
4极 |
2极 |
4极 |
2极 |
4极 |
|
|
250 |
-- |
69.3 |
-- |
65.7 |
-- |
52.0 |
|
370 |
73.8 |
72.0 |
70.5 |
68.6 |
67.0 |
65.0 |
|
550 |
76.4 |
74.6 |
73.3 |
71.4 |
70.0 |
68.0 |
|
750 |
78.1 |
77.2 |
75.2 |
74.2 |
72.0 |
71.0 |
|
1100 |
80.6 |
78.9 |
77.9 |
76.1 |
75.0 |
73.0 |
|
1500 |
81.4 |
80.6 |
78.8 |
77.9 |
76.0 |
75.0 |
|
2200 |
82.2 |
81.4 |
79.8 |
78.8 |
77.0 |
76.0 |
|
3000 |
83.9 |
82.2 |
81.6 |
79.8 |
79.0 |
77.0 |
表5 房间空调风扇电动机能效等级级效率
|
额定功率W |
能效等级 |
||||||||
|
1级 |
2级 |
3级 |
|||||||
|
4极 |
6极 |
8极 |
4极 |
6极 |
8极 |
4极 |
6极 |
8极 |
|
|
6 |
20.9 |
18.4 |
17.1 |
18.3 |
16.1 |
15.0 |
16.0 |
14.0 |
13.0 |
|
10 |
29.2 |
25.7 |
24.5 |
26.0 |
22.7 |
21.6 |
23.0 |
20.0 |
19.0 |
|
16 |
36.1 |
32.7 |
30.4 |
32.5 |
29.2 |
27.1 |
29.0 |
26.0 |
24.0 |
|
20 |
39.4 |
36.1 |
32.7 |
35.6 |
32.5 |
29.2 |
32.0 |
29.0 |
26.0 |
|
25 |
43.8 |
39.4 |
36.1 |
39.8 |
35.6 |
32.5 |
36.0 |
32.0 |
29.0 |
|
35 |
48.0 |
43.8 |
40.5 |
44.0 |
39.8 |
36.7 |
40.0 |
36.0 |
33.0 |
|
40 |
50.1 |
45.9 |
42.7 |
46.0 |
41.9 |
38.8 |
42.0 |
38.0 |
35.0 |
|
50 |
53.1 |
49.0 |
44.8 |
49.0 |
45.0 |
40.9 |
45.0 |
41.0 |
37.0 |
|
60 |
55.1 |
51.1 |
46.9 |
51.1 |
47.0 |
42.9 |
47.0 |
43.0 |
39.0 |
|
75 |
56.1 |
53.1 |
48.0 |
52.1 |
49.0 |
44.0 |
48.0 |
45.0 |
40.0 |
|
90 |
57.1 |
54.1 |
49.0 |
53.1 |
50.1 |
45.0 |
49.0 |
46.0 |
41.0 |
|
100 |
58.1 |
55.1 |
50.1 |
54.1 |
51.1 |
46.0 |
50.0 |
47.0 |
42.0 |
|
120 |
60.0 |
56.1 |
51.1 |
56.0 |
52.1 |
47.0 |
52.0 |
48.0 |
43.0 |
|
150 |
61.9 |
57.1 |
53.1 |
58.0 |
53.1 |
49.0 |
54.0 |
49.0 |
45.0 |
|
180 |
63.8 |
58.1 |
54.1 |
60.0 |
54.1 |
50.1 |
56.0 |
50.0 |
46.0 |
|
250 |
66.6 |
60.9 |
56.1 |
62.9 |
57.0 |
52.1 |
59.0 |
53.0 |
48.0 |
|
370 |
72.0 |
62.8 |
57.1 |
68.6 |
59.0 |
53.1 |
65.0 |
55.0 |
49.0 |
|
400 |
72.9 |
65.7 |
60.0 |
69.5 |
61.9 |
56.0 |
66.0 |
58.0 |
52.0 |
|
450 |
73.8 |
67.5 |
61.9 |
70.5 |
63.8 |
58.0 |
67.0 |
60.0 |
54.0 |
|
480 |
74.6 |
68.4 |
62.8 |
71.4 |
64.8 |
59.0 |
68.0 |
61.0 |
55.0 |
|
500 |
75.5 |
69.3 |
63.8 |
72.4 |
65.7 |
60.0 |
69.0 |
62.0 |
56.0 |
|
550 |
76.4 |
70.2 |
64.7 |
73.3 |
66.7 |
60.9 |
70.0 |
63.0 |
57.0 |
根据GB 25958-2010的规定，单相小功率异步电动机按照GB/T9651——2008中的直接法测量效率。对于三相小功率异步电动机，额定功率为550W及以下的按照GB/T1032的A法——输入输出法测量效率；额定功率为750W及以上的按照GB/T1032中的B法——测量输入和输出功率的损耗分析法测量效率。
2. 中小型三相异步电动机
GB 18613-2006《中小型三相异步电动机能效限定值及能效等级》规定了中小型三相异步电动机的能效要求，该标准发布于
GB 18613-2006适用于690V以下的电压，50Hz三相交流电源供电，能效2级和3级的额定功率0.55kW～315kW范围内，能效1级的额定功率在3kW～315kW范围内，极数为2极、4极和6极，单速封闭自扇冷式、N设计的一般用途电动机或一般用途防爆电动机。
GB 18613-2006将电动机的能效等级分为3级，其中1级能效最高。各等级电动机在额定输出功率和75%额定输出功率的效率应不低于表6中3级的规定。标准实施4年后（
表6 中小型三相异步电动机能效等级
|
额定功率W |
能效% |
||||||||
|
1级 |
2级 |
3级 |
|||||||
|
2极 |
4极 |
6极 |
2极 |
4极 |
6极 |
2极 |
4极 |
6极 |
|
|
0.55 |
-- |
-- |
-- |
-- |
80.7 |
75.4 |
-- |
71.0 |
65.0 |
|
0.75 |
-- |
-- |
-- |
77.5 |
82.3 |
77.7 |
75.0 |
73.0 |
69.0 |
|
1.1 |
-- |
-- |
-- |
82.8 |
83.8 |
79.9 |
76.2 |
76.2 |
72.0 |
|
1.5 |
-- |
-- |
-- |
84.1 |
85.0 |
81.5 |
78.5 |
78.5 |
76.0 |
|
2.2 |
-- |
-- |
-- |
85.6 |
86.4 |
83.4 |
81.0 |
81.0 |
79.0 |
|
3 |
-- |
-- |
86.9 |
85.7 |
87.4 |
84.9 |
82.6 |
82.6 |
81.0 |
|
4 |
89.3 |
89.9 |
87.9 |
87.6 |
88.3 |
86.1 |
84.2 |
84.2 |
82.0 |
|
5.5 |
90.1 |
90.7 |
89.1 |
88.6 |
89.2 |
87.4 |
85.7 |
85.7 |
84.0 |
|
7.5 |
90.9 |
91.5 |
90.6 |
89.5 |
90.1 |
89.0 |
87.0 |
87.0 |
86.0 |
|
11 |
91.9 |
92.2 |
91.4 |
90.5 |
91.0 |
90.0 |
88.4 |
88.4 |
87.5 |
|
15 |
92.5 |
92.9 |
92.3 |
91.3 |
91.8 |
91.0 |
89.4 |
89.4 |
89.0 |
|
18.5 |
92.9 |
93.3 |
92.7 |
91.8 |
92.2 |
91.5 |
90.0 |
90.0 |
90.0 |
|
22 |
93.3 |
93.6 |
93.1 |
92.2 |
92.6 |
92.0 |
90.5 |
90.5 |
90.0 |
|
30 |
93.9 |
94.2 |
93.6 |
92.9 |
93.2 |
92.5 |
91.4 |
91.4 |
91.5 |
|
37 |
94.2 |
94.5 |
94.0 |
93.3 |
93.6 |
93.0 |
92.0 |
92.0 |
92.0 |
|
45 |
94.6 |
94.8 |
94.4 |
93.7 |
93.9 |
93.5 |
92.5 |
92.5 |
92.5 |
|
55 |
94.9 |
95.0 |
95.0 |
94.0 |
94.2 |
93.8 |
93.0 |
93.0 |
92.8 |
|
75 |
95.4 |
95.5 |
95.2 |
94.6 |
94.7 |
94.2 |
93.6 |
93.6 |
93.5 |
|
90 |
95.5 |
95.7 |
95.7 |
95.0 |
95.0 |
94.5 |
93.9 |
93.9 |
93.8 |
|
110 |
95.8 |
96.1 |
95.7 |
95.0 |
95.4 |
95.0 |
94.0 |
94.5 |
94.0 |
|
132 |
96.1 |
96.1 |
95.7 |
95.4 |
95.4 |
95.0 |
94.5 |
94.8 |
94.2 |
|
160 |
96.1 |
96.1 |
95.7 |
95.4 |
95.4 |
95.0 |
94.6 |
94.9 |
94.5 |
|
200 |
96.1 |
96.1 |
95.7 |
95.4 |
95.4 |
95.0 |
94.8 |
94.9 |
94.5 |
|
250 |
96.1 |
96.1 |
95.7 |
95.8 |
95.8 |
95.0 |
95.2 |
95.2 |
94.5 |
|
315 |
96.1 |
96.1 |
-- |
95.8 |
95.8 |
-- |
95.4 |
95.2 |
-- |
根据GB 18613-2006的规定，电动机效率应按GB/T 1032中的损耗分析法确定，其中杂散损耗按额定输入功率的0.5%计算。
