AreebaSattar/Cable-Sizing-Calculator

1import gradio as gr2 3def cable_sizing(power_kw, voltage, pf, length, v_drop, material, phase, 4                 ambient_temp, short_circuit_time, growth_factor, load_type,5                 duty_cycle, tray_type, laying_method, grouping_factor,6                 soil_resistivity, depth, ventilation, busbar_type, busbar_current):7    8    # Step 1: Base current calculation9    if phase == "Single Phase":10        current = (power_kw * 1000) / (voltage * pf)11    else:12        current = (power_kw * 1000) / (voltage * pf * (3**0.5))13 14    # Step 2: Apply growth factor (future demand)15    current *= (1 + growth_factor/100)16 17    # Step 3: Temperature derating (very simplified example)18    temp_correction = 1.019    if ambient_temp > 30:20        temp_correction = max(0.7, 1 - (ambient_temp - 30) * 0.01)21    current /= temp_correction22 23    # Step 4: Grouping correction24    grouping_correction = 1 / grouping_factor if grouping_factor > 1 else 125    current /= grouping_correction26 27    # Step 5: Voltage drop check28    resistivity = {"Copper": 0.018, "Aluminium": 0.028}29    vd = (current * resistivity[material] * length) / 100030    vd_percent = (vd / voltage) * 10031    if vd_percent > v_drop:32        vdrop_msg = f"⚠ Voltage drop {vd_percent:.2f}% exceeds limit ({v_drop}%)."33    else:34        vdrop_msg = f"Voltage drop {vd_percent:.2f}% is within limit."35 36    # Step 6: Suggest cable size (dummy table)37    if current <= 20:38        cable_size = "2.5 mm²"39    elif current <= 40:40        cable_size = "6 mm²"41    elif current <= 70:42        cable_size = "16 mm²"43    elif current <= 150:44        cable_size = "35 mm²"45    else:46        cable_size = "Check IEC/NEC table for larger sizes."47 48    # Step 7: Busbar sizing (very simplified Cu example)49    if busbar_type == "Rigid (Cu)":50        busbar_area = busbar_current / 1.2  # assuming 1.2 A/mm²51        busbar_suggestion = f"Required busbar area ≈ {busbar_area:.0f} mm²"52    else:53        busbar_suggestion = "Flexible busbar selected (ACSR/AAAC). Size depends on strands."54 55    return f"""56    --- Cable Sizing Results ---57    Load Current: {current:.2f} A58    {vdrop_msg}59    Recommended Cable Size: {cable_size}60    61    --- Busbar Sizing ---62    Busbar Type: {busbar_type}63    {busbar_suggestion}64    """65 66# Gradio Interface67iface = gr.Interface(68    fn=cable_sizing,69    inputs=[70        gr.Number(label="Load Power (kW)"),71        gr.Number(label="Voltage (V)"),72        gr.Number(label="Power Factor"),73        gr.Number(label="Cable Length (m)"),74        gr.Number(label="Allowable Voltage Drop (%)"),75        gr.Dropdown(["Copper", "Aluminium"], label="Cable Material"),76        gr.Dropdown(["Single Phase", "Three Phase"], label="Phase"),77        gr.Number(label="Ambient Temperature (°C)", value=30),78        gr.Number(label="Short Circuit Time (s)", value=1),79        gr.Number(label="Growth Factor (%)", value=10),80        gr.Dropdown(["Heating", "HVACR", "Motor", "Lighting", "Electronics", "Welding"], label="Load Type"),81        gr.Dropdown(["Continuous", "Intermittent"], label="Duty Cycle"),82        gr.Dropdown(["Perforated", "Solid Bottom", "Ladder", "Clipped Directly", "Free Air"], label="Cable Tray"),83        gr.Dropdown(["Open Air", "Conduits", "Pipes", "Trenches", "Buried Underground"], label="Laying Method"),84        gr.Number(label="Grouping Factor", value=1),85        gr.Number(label="Soil Thermal Resistivity (K.m/W)", value=1.5),86        gr.Number(label="Depth (m)", value=1),87        gr.Dropdown(["Good", "Poor"], label="Ventilation"),88        gr.Dropdown(["Flexible (ACSR/AAAC)", "Rigid (Cu)", "Rigid (Al)", "Rigid (Ag)"], label="Busbar Type"),89        gr.Number(label="Busbar Current (A)", value=1000),90    ],91    outputs="text",92    title="Advanced Cable & Busbar Sizing Calculator",93    description="Considers load, environment, installation, and IEC/NEC factors."94)95 96iface.launch()97