怎么样自己做最简单的网站,wordpress 历史版本,wordpress导入sql失败,高校校园网站建设的要求三相电机参数#xff1a;
0.75KW#xff0c;额定电流是2A#xff0c;功率因数0.71#xff0c;效率78.9%。制式S1.
1.负载不变时的线电压与线电流的关系 1.1相关数据与python代码#xff1a; 这里记录了一系列的实验#xff1a;
第一组实验#xff1a;近乎空载#xf…三相电机参数
0.75KW额定电流是2A功率因数0.71效率78.9%。制式S1.
1.负载不变时的线电压与线电流的关系 1.1相关数据与python代码 这里记录了一系列的实验
第一组实验近乎空载改变电机的输入电压查看电流的变化
第二组实验增大负载带动电机励磁电流为0.50A改变输入电压查看电流的变化
第三组实验增大负载带动电机励磁电流为0.90A改变输入电压查看电流的变化
import matplotlib.pyplot as pltcurr_noload_50Hz {360:11.63, 370:12.06, 380:12.59, 390:13.12,400:13.69, 410:14.38};
curr_500mAload_50Hz {360:11.91, 370:12.33, 380:12.76, 390:13.30,400:13.90, 410:14.45};
curr_900mAload_50Hz {360:12.93, 370:13.33, 380:13.68, 390:14.12,400:14.62, 410:15.18};# 数据
freqs [360, 370, 380, 390, 400, 410]
curr_noload [11.63, 12.06, 12.59, 13.12, 13.69, 14.38]
curr_500mA [11.91, 12.33, 12.76, 13.30, 13.90, 14.45]
curr_900mA [12.93, 13.33, 13.68, 14.12, 14.62, 15.18]curr_noload [curr * 0.1 for curr in curr_noload]
curr_500mA [curr * 0.1 for curr in curr_500mA]
curr_900mA [curr * 0.1 for curr in curr_900mA]# 绘制线图
plt.plot(freqs, curr_noload, labelcurr_noload)
plt.plot(freqs, curr_500mA, labelcurr_500mA)
plt.plot(freqs, curr_900mA, labelcurr_900mA)# 图的标题和坐标轴标签
plt.title(Current vs. Voltage of 3Phase-engine)
plt.xlabel(Voltage)
plt.ylabel(Current (A))# 图例
plt.legend()# 显示图像
plt.show()2.负载不同的输入电流源曲线 2.1 数据与代码
import matplotlib.pyplot as plt#第四组实验电压固定为380V改变负载电机的励磁电流查看电流变化
curr_withfixVoltage {0: 12.41, 0.22:12.44, 0.47:12.69, 0.68: 13.06, 0.85:13.42,0.90:13.65, 1.08:14.22,1.13:14.46}# 数据
loadInCurr [key for key in curr_withfixVoltage.keys()]
currOfEngine [item for item in curr_withfixVoltage.values()]# 绘制线图
plt.plot(loadInCurr, currOfEngine, labelcurrOfEngine)# 图的标题和坐标轴标签
plt.title(Current of Engine vs. Load)
plt.xlabel(load in current scale.)
plt.ylabel(Current(A) of Engine)# 图例
plt.legend()# 显示图像
plt.show()
