29 lines
1.1 KiB
Python
29 lines
1.1 KiB
Python
from math import sqrt
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current = 10.4 # Amps
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temperature = 250.0 # degress F
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k20 = 10.37 # 1.26 / 1000.0 # ohms of 1 circular mil foot of conductor
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circular_mils = 10384.0 # cross-sectional area in circular mils of conductor
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alpha_copper = 0.00393
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alpha_aluminum = 0.00330
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def voltage_drop(length, current, temperature, k75, circular_mils, alpha):
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return sqrt(3) * k20 * (1.0 + alpha * ((5.0 / 9.0) * (temperature - 32.0) - 20.0)) * length * current / circular_mils
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def calc_voltage_needed(input_voltage, voltage_drop):
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return input_voltage + voltage_drop
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motor_input_voltage = 380.0
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print("---")
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for x in [1000.0, 2000.0, 3000.0, 4000.0, 5000.0, 6000.0, 7000.0, 8000.0, 9000.0, 10000.0]:
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v_dropped = voltage_drop(x, current, temperature, k20, circular_mils, alpha_copper)
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v_output = calc_voltage_needed(motor_input_voltage, v_dropped)
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print("Length: {}".format(x))
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print("Voltage Drop: {} V".format(round(v_dropped, 3)))
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print("Output Voltage: {} V".format(round(v_output, 3)))
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print("Motor Input Voltage {} V".format(round(motor_input_voltage, 3)))
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print("---")
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