频率/Hz

20

30

40

50

60

70

80

90

100

电流有效值/A

2.01

2.00

2.01

1.99

2.00

1.99

1.98

2.00

2.01

电压有效值/V

40.225

40.214

40.203

40.145

40.036

39.934

39.855

39.803

39.774