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Update app.py
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import gradio as gr
import pandas as pd
# Updated Calculation Function (No Safety Factor)
def load_calculator(load_rating, num_of_loads, voltage, power_factor, phase_type):
try:
# Check if any input is invalid
if not all([load_rating, num_of_loads, voltage, power_factor]):
raise ValueError("All input fields must be filled with valid numbers.")
# Step 1: Calculate total load in kW
total_load = load_rating * num_of_loads # Total Load in kW
print(f"Total Load (kW): {total_load}")
# Step 2: Calculate current based on the type of phase (Single or Three Phase)
total_load_watts = total_load * 1000 # Convert kW to Watts
print(f"Total Load (W): {total_load_watts}")
# Current formula for Single Phase: I = P / (V * PF)
if phase_type == "Single-Phase":
total_current = total_load_watts / (voltage * power_factor)
print(f"Total Current (A - Single-Phase): {total_current}")
else: # Three-Phase: I = P / (sqrt(3) * V * PF)
total_current = total_load_watts / (3 ** 0.5 * voltage * power_factor)
print(f"Total Current (A - Three-Phase): {total_current}")
# Step 3: Calculate breaker size (no safety factor)
breaker_size = total_current # Breaker size in Amperes
print(f"Breaker Size (A): {breaker_size}")
# Step 4: Calculate cable size (assuming 0.75mm² per Ampere of current as an example)
cable_size = total_current * 0.75 # Cable size in mm²
print(f"Cable Size (mm²): {cable_size}")
# Step 5: Calculate apparent power in kVA
apparent_power = total_load / power_factor # Apparent Power in kVA
print(f"Apparent Power (kVA): {apparent_power}")
# Prepare results for returning to Gradio
return (
str(round(total_load, 2)),
str(round(total_current, 2)),
str(round(breaker_size, 2)),
str(round(cable_size, 2)),
str(round(apparent_power, 2))
)
except Exception as e:
# Return the error message if any exception occurs
return f"An error occurred: {str(e)}"
# Gradio Interface
def interface():
load_rating = gr.Number(label="Load Rating per Device (kW)")
num_of_loads = gr.Number(label="Number of Loads")
voltage = gr.Number(label="Voltage (230V for single-phase, 400V for three-phase)")
power_factor = gr.Number(label="Power Factor (0.8 for inductive loads, 1 for resistive)")
phase_type = gr.Radio(["Single-Phase", "Three-Phase"], label="Phase Type")
# Outputs
outputs = [
gr.Textbox(label="Total Load (kW)"),
gr.Textbox(label="Total Current (A)"),
gr.Textbox(label="Recommended Breaker Size (A)"),
gr.Textbox(label="Recommended Cable Size (mm²)"),
gr.Textbox(label="Total Apparent Power (kVA)")
]
# Launch Interface
gr.Interface(
fn=load_calculator,
inputs=[load_rating, num_of_loads, voltage, power_factor, phase_type],
outputs=outputs,
title="Load Calculation Assistant",
description="Calculate electrical loads and get the results."
).launch()
interface()