ZHCUCF1A October 2024 – February 2025
对于以下测试结果,对电表应用了增益、相位和偏移校准。在更高的电流下,所示的百分比误差主要由分流电阻漂移决定,这种漂移是由于高电流产生的热量增加引起的。
| 电流 (A) | 平均误差百分比 PF = 1,cos Phi = 0° | 限值 (%) [0.5 级] IEC 62053-22 (PF = 1) |
平均误差百分比 PF = 0.5i,cos cos PHI = 60° | 限值 (%) [0.5 级] IEC 62053-22 (PF 0.5i/0.8c) |
平均误差百分比 PF = 1,cos Phi = -36.87° |
|---|---|---|---|---|---|
| 0.10 | 0.322 | 1.0 | 0.571 | 1.0 | 0.563 |
| 0.50 | 0.105 | 1.0 | -0.017 | 1.0 | 0.227 |
| 0.75 | 0.089 | 1.0 | -0.073 | 1.0 | 0.212 |
| 1.5 | 0.058 | 0.5 | -0.101 | 0.6 | 0.165 |
| 3 | 0.063 | 0.5 | -0.123 | 0.6 | 0.150 |
| 7.5 | 0.053 | 0.5 | -0.156 | 0.6 | 0.144 |
| 15 | 0.041 | 0.5 | -0.161 | 0.6 | 0.124 |
| 30 | 0.005 | 0.5 | -0.187 | 0.6 | 0.110 |
| 60 | -0.002 | 0.5 | -0.265 | 0.6 | 0.077 |
| 75 | -0.061 | 0.5 | -0.304 | 0.6 | 0.008 |
| 100 | -0.181 | 0.5 | -0.502 | 0.6 | -0.129 |
| 电流 (A) | 平均误差百分比 sin PHI = 1i (90°) | 限值 (%) [0.5 级] IEC 62053-22(sin PHI = 1,90°) |
平均误差百分比 sin PHI = 0.5i (30°) | 限值 (%) [0.5 级] IEC 62053-22(sin PHI = 0.5i/0.8c,30°/-53.13°) |
平均误差百分比 sin PHI = 0.8c (-53.13°) |
|---|---|---|---|---|---|
| 0.10 | 0.186 | 0.623 | -0.374 | ||
| 0.50 | 0.088 | 2.0 | 0.322 | -0.177 | |
| 0.75 | 0.074 | 2.0 | 0.314 | -0.148 | |
| 1.5 | 0.051 | 1.0 | 0.258 | 2.0 | -0.116 |
| 3 | 0.046 | 1.0 | 0.252 | 1.0 | -0.102 |
| 7.5 | 0.043 | 1.0 | 0.255 | 1.0 | -0.092 |
| 15 | 0.037 | 1.0 | 0.2 | 1.0 | -0.095 |
| 30 | 0.037 | 1.0 | 0.230 | 1.0 | -0.095 |
| 60 | 0.019 | 1.0 | 0.222 | 1.0 | -0.126 |
| 75 | -0.033 | 1.0 | 0.154 | 1.0 | -0.190 |
| 100 | -0.131 | 1.0 | -0.006 | 1.0 | -0.332 |
| 电流 (A) | 百分比误差 |
|---|---|
| 0.025 | -23.562 |
| 0.05 | -8.155 |
| 0.1 | -2.049 |
| 0.25 | -0.492 |
| 0.5 | -0.203 |
| 1 | -0.100 |
| 2 | -0.050 |
| 5 | -0.049 |
| 10 | -0.021 |
| 20 | -0.037 |
| 30 | -0.023 |
| 40 | -0.027 |
| 50 | -0.015 |
| 60 | 0.002 |
| 70 | 0.011 |
| 80 | 0.021 |
| 90 | 0.034 |
| 100 | 0.064 |
| 电压 (V) | 百分比误差 |
|---|---|
| 9 | 0.021 |
| 10 | 0.037 |
| 30 | 0.027 |
| 50 | 0.009 |
| 70 | 0.004 |
| 90 | -0.006 |
| 100 | 0.008 |
| 120 | -0.004 |
| 140 | -0.006 |
| 160 | 0.001 |
| 180 | 0.018 |
| 200 | -0.002 |
| 220 | 0.011 |
| 230 | 0.023 |
| 240 | 0.009 |
| 260 | 0.027 |
| 270 | 0.025 |