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• thedmtechnologies
• July 23, 2024
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Cable Resistance Calculator

  Home Blogs Cable Resistance Calculator Calculator July 23, 2024 Input Data and Measurement Resistivity ((rho)): This is a property of the material from which the cable is made. It measures how strongly the material resists electrical current. Resistivity is typically provided by the manufacturer of the cable and is measured in ohm-meters (Ω·m). Length (L): This is the total length of the cable through which the current flows. Measure it in meters (m) using a tape measure or ruler. Diameter (d): This is the thickness of the cable. Measure the diameter of the cable with a caliper or micrometer in meters (m). If you measure the circumference, you can calculate the diameter by dividing the circumference by π (approximately 3.14159). Formula The resistance ((R)) of a cable can be calculated using the following formula: Resistance (R) = (frac{rho times L}{A}) Where: (rho) is the resistivity of the cable material (in ohm-meters, Ω·m). L is the length of the cable (in meters, m). A is the cross-sectional area of the cable (in square meters, m²). The cross-sectional area ((A)) of a cylindrical cable can be calculated as: A = π × (r2) Where: r is the radius of the cable (in meters, m), which is half of the diameter. Resistivity ((rho)): Length (L): Diameter (d): Calculate Resistance Calculated Resistance

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• thedmtechnologies
• July 23, 2024
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Comprehensive Electrical System Losses Analysis

  Home Blogs Comprehensive Electrical System Losses Analysis Calculator July 23, 2024   Electrical System Losses Report Input Data Transmission Power (MW): Measure the power transmitted through the transmission line. Transmission Distance (km): Measure the length of the transmission line from the source to the destination. Transmission Resistance (Ω/km): Obtain the resistance per kilometer of the transmission line. Transmission Voltage (kV): Measure the voltage level at which power is transmitted. Distribution Power (MW): Measure the power distributed through the distribution network. Distribution Distance (km): Measure the length of the distribution line from the substation to the load. Distribution Resistance (Ω/km): Obtain the resistance per kilometer of the distribution line. Distribution Voltage (kV): Measure the voltage level at which power is distributed. Old Transformer Efficiency (%): Check the efficiency rating of the existing transformer. New Transformer Efficiency (%): Check the efficiency rating of the new transformer. Generator Power (MW): Measure the power output of the generator. Combined Cycle Efficiency (%): Obtain the efficiency of the combined cycle power plant. Mechanical Losses Old (%): Measure or estimate the mechanical losses of the old system. Mechanical Losses New (%): Measure or estimate the mechanical losses of the new system. Old Power Factor: Measure the power factor of the old system. New Power Factor: Measure the power factor of the new system. Old Harmonic Losses (%): Measure the harmonic losses of the old system. New Harmonic Losses (%): Measure the harmonic losses of the new system. Generate Report

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• thedmtechnologies
• July 23, 2024
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Factory Utility System Design

  Home Blogs Factory Utility System Design Introduction This document outlines the utility system design for a factory with an annual production volume of 200,000 units and 1,000 employees. The design includes calculations for air compressors, diesel generators, effluent treatment plants (ETP), sewage treatment plants (STP), water treatment plants (WTP), and HVAC systems. Calculator July 23, 2024   Utility System Design Annual Production Volume (units/year): Number of Employees: Number of Machines: KVA per Machine: m³ per Machine per Hour: Diesel Generator Usage Hours per Day: Power Line Voltage (kVA): Cost per kWh (INR): Fixed Charge (INR/month): Demand Charge (INR/kW): Calculate Results: Air Compressor System: Total m³/hr Required: Daily m³/hr Required: Hourly m³/hr Required: Power Required: kW Cost per Day: INR Total m³/hr Required = Annual production volume × m³/hr per unit Daily m³/hr Required = Total m³/hr Required ÷ Operational days Hourly m³/hr Required = Daily m³/hr Required ÷ Operational hours/day Power (kW) = (Hourly m³/hr × Pressure) ÷ Conversion Factor Power Usage (kWh per Shift) = Power (kW) × Operational hours × Conversion Factor Diesel Generator (DG) System: Total Load: kW Fuel Consumption: L/hr Power Usage per Day: kWh Cost per Day: INR Total Load (kW) = Number of Machines × KVA per Machine Fuel Consumption (L/hr) = (Total Load × Fuel consumption rate) ÷ Efficiency Power Usage (kWh per Day) = Total Load × Usage hours/day Cost (Daily) = Fuel Consumption (L/hr) × Fuel cost × Usage hours/day Effluent Treatment Plant (ETP): Chemical Dose per Day: kg Cost per Day: INR Chemical Dose (kg/day) = (Chemical dosing requirement × Effluent volume) ÷ Conversion factor Cost (Daily) = Chemical Dose (kg/day) × Chemical cost Sewage Treatment Plant (STP): Sewage Flow: m³/day BOD Load: kg/day Cost per Day: INR Sewage Flow (m³/day) = Number of employees × Sewage per employee BOD Load (kg/day) = (BOD concentration × Sewage volume) ÷ Conversion factor Cost (Daily) = (Sewage Flow × BOD Load) × Treatment cost Water Treatment Plant (WTP): Total Water Demand: m³/day Chemical Dose per Day: kg Cost per Day: INR Total Water Demand (m³/day) = Number of employees × Water per employee Chemical Dose (kg/day) = (Chemical dosing requirement × Water demand) ÷ Conversion factor Cost (Daily) = Chemical Dose (kg/day) × Chemical cost HVAC System: Heat Load: kW Cost per Day: INR Heat Load (kW) = Volume (m³) × Temperature difference (°C) × Air exchange rate (m³/hr) × Specific heat of air (kJ/kg°C) ÷ Time factor Cost (Daily) = Heat Load × Cost per kWh × Operational hours/day Power Line Capacity: Power Line Voltage: kVA Required Capacity: kW Power Line Capacity (kVA) = Total Load ÷ Power factor Required Capacity (kW) = Total Load TNEB Bill Calculation: Demand Charge = ₹ Fixed Charge = ₹ Energy Cost = ₹ Total Monthly Bill = ₹

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• thedmtechnologies
• July 20, 2024
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Electrical Manitenance calculation

Home Blogs Electrical Manitenance calculation Calculator July 20, 2024 Electrical Circuit Maintenance Select Maintenance Task: Resistance CalculationCurrent CalculationPower CalculationHorsepower CalculationKilowatt CalculationKilovolt-Ampere CalculationMotor Poles Calculation Resistance Calculation Formula for Resistance (Ohm’s Law): R = V / I Where: R = Resistance (ohms) V = Voltage (volts) I = Current (amperes) Example Calculation: If the voltage (V) is 12 volts and the current (I) is 2 amperes: R = 12V / 2A = 6 ohms Calculate: Voltage (V): Current (I): Calculate Resistance Result: N/A ohms Current Calculation Formula for Current (Ohm’s Law): I = V / R Where: I = Current (amperes) V = Voltage (volts) R = Resistance (ohms) Example Calculation: If the voltage (V) is 24 volts and the resistance (R) is 8 ohms: I = 24V / 8 ohms = 3 amperes Calculate: Voltage (V): Resistance (R): Calculate Current Result: N/A amperes Power Calculation Formula for Power (P): P = V * I Where: P = Power (watts) V = Voltage (volts) I = Current (amperes) Example Calculation: If the voltage (V) is 230 volts and the current (I) is 10 amperes: P = 230V * 10A = 2300 watts Calculate: Voltage (V): Current (I): Calculate Power Result: N/A watts Horsepower Calculation Formula for Horsepower (HP): HP = (V * I * η) / 746 Where: HP = Horsepower V = Voltage (volts) I = Current (amperes) η = Efficiency (decimal) Example Calculation: If the voltage (V) is 220 volts, the current (I) is 15 amperes, and the efficiency (η) is 0.9: HP = (220V * 15A * 0.9) / 746 = 3.98 HP Calculate: Voltage (V): Current (I): Efficiency (η): Calculate Horsepower Result: N/A HP Kilowatt Calculation Formula for Kilowatt (kW): kW = (V * I * η) / 1000 Where: kW = Kilowatt V = Voltage (volts) I = Current (amperes) η = Efficiency (decimal) Example Calculation: If the voltage (V) is 230 volts, the current (I) is 10 amperes, and the efficiency (η) is 0.85: kW = (230V * 10A * 0.85) / 1000 = 1.955 kW Calculate: Voltage (V): Current (I): Efficiency (η): Calculate Kilowatt Result: N/A kW Kilovolt-Ampere Calculation Formula for Kilovolt-Ampere (kVA): kVA = (V * I) / 1000 Where: kVA = Kilovolt-Ampere V = Voltage (volts) I = Current (amperes) Example Calculation: If the voltage (V) is 480 volts and the current (I) is 30 amperes: kVA = (480V * 30A) / 1000 = 14.4 kVA Calculate: Voltage (V): Current (I): Calculate Kilovolt-Ampere Result: N/A kVA Motor Poles Calculation Formula for Motor Poles: P = 120 * f / N Where: P = Number of Poles f = Frequency (Hz) N = Speed (RPM) Example Calculation: If the frequency (f) is 60 Hz and the speed (N) is 1800 RPM: P = 120 * 60 / 1800 = 4 poles Calculate: Frequency (Hz): Speed (RPM): Calculate Motor Poles Result: N/A poles

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• thedmtechnologies
• July 20, 2024
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5 Why Analysis with Action Plan

Home Blogs 5 Why Analysis with Action Plan Calculator July 20, 2024 Analysis Tool Why-Why Analysis Input Problem Statement: Reasons (Separate each reason by a newline): Equipment malfunction Poor material quality Inadequate training Generate Why-Why Analysis Why-Why Analysis Output 5 Whys Analysis Input Problem Statement: Why 1: Why is the product quality inconsistent? Answer 1: Equipment malfunction Why 2: Why is there equipment malfunction? Answer 2: Maintenance was not performed regularly Why 3: Why was maintenance not performed regularly? Answer 3: Lack of a maintenance schedule Why 4: Why was there no maintenance schedule? Answer 4: No designated person responsible for maintenance Why 5: Why was there no designated person responsible for maintenance? Answer 5: Management did not prioritize maintenance Generate 5 Whys Analysis 5 Whys Analysis Output Fishbone Diagram Input Problem Statement: Category 1 (e.g., People): Lack of training Category 2 (e.g., Machines): Outdated equipment Category 3 (e.g., Methods): Inefficient processes Category 4 (e.g., Materials): Poor quality materials Generate Fishbone Diagram Fishbone Diagram Output Generate Final Report Generate Report Print Report

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• thedmtechnologies
• July 20, 2024
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EV Battery Maintenance

Home Blogs EV Battery Maintenance Calculator July 20, 2024 EV Battery Maintenance Select Maintenance Task: Select…State of Charge (SoC)Depth of Discharge (DoD)Battery CapacityEnergy ConsumptionInternal Resistance State of Charge (SoC) Formula for SoC: SoC (%) = (Current Capacity (Ah) / Total Capacity (Ah)) * 100 Example Calculation: If the current capacity is 50 Ah and the total capacity is 100 Ah: SoC (%) = (50 / 100) * 100 = 50% Calculate: Current Capacity (Ah): Total Capacity (Ah): Calculate SoC Result: N/A % Depth of Discharge (DoD) Formula for DoD: DoD (%) = 100 – SoC (%) Example Calculation: If the SoC is 30%: DoD (%) = 100 – 30 = 70% Calculate: State of Charge (SoC) (%): Calculate DoD Result: N/A % Battery Capacity Formula for Battery Capacity (Coulomb Counting): Q = ∫ I(t) dt Example Calculation: If a constant current of 10 A is drawn for 2 hours: Q = 10 A * 2 hours = 20 Ah Calculate: Current (A): Time (hours): Calculate Capacity Result: N/A Ah Energy Consumption Formula for Energy Consumption: Energy (Wh) = Voltage (V) * Current (A) * Time (h) Example Calculation: If the voltage is 400V, the current is 50A, and the usage time is 1 hour: Energy (Wh) = 400V * 50A * 1h = 20000Wh = 20kWh Calculate: Voltage (V): Current (A): Time (h): Calculate Energy Result: N/A Wh Internal Resistance Formula for Internal Resistance: Rint = (Vno-load – Vload) / Iload Example Calculation: If the no-load voltage is 400V, the load voltage is 390V, and the load current is 50A: Rint = (400V – 390V) / 50A = 0.2Ω Calculate: No-load Voltage (V): Load Voltage (V): Load Current (A): Calculate Resistance Result: N/A Ω

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• thedmtechnologies
• July 20, 2024
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Hydraulic Pump and Pneumatic Circuit Maintenance

Home Blogs Hydraulic Pump and Pneumatic Circuit Maintenance Calculator July 20, 2024 Pneumatic Circuit Maintenance Select Maintenance Task: Leak Detection and RepairPressure Drop CalculationFlow Rate CalculationCycle Time CalculationForce Calculation Leak Detection and Repair Formula for Air Leak Rate: Q = (C / P) * sqrt(2 * P * ρ) Where: Q = Leak rate (cfm) C = Flow coefficient P = Pressure (psi) ρ = Density of air (lb/ft³) Calculate: C: P (psi): ρ (lb/ft³): Calculate Leak Rate Result: N/A cfm Pressure Drop Calculation Formula for Pressure Drop: ΔP = (Q^2 * L * k) / d^5 Where: ΔP = Pressure drop (psi) Q = Flow rate (cfm) L = Length of pipe (feet) k = Friction factor (dimensionless) d = Diameter of pipe (inches) Calculate: Q (cfm): L (feet): k: d (inches): Calculate Pressure Drop Result: N/A psi Flow Rate Calculation Formula for Flow Rate: Q = C * A * sqrt(2 * g * h) Where: Q = Flow rate (cfm) C = Discharge coefficient (dimensionless) A = Area of orifice (square feet) g = Acceleration due to gravity (32.174 ft/s²) h = Pressure head (feet) Calculate: C: A (ft²): h (feet): Calculate Flow Rate Result: N/A cfm Cycle Time Calculation Formula for Cycle Time: t = L / v Where: t = Cycle time (seconds) L = Stroke length of the cylinder (inches or feet) v = Velocity of the piston (inches/second or feet/second) Calculate: L (inches): v (inches/second): Calculate Cycle Time Result: N/A seconds Force Calculation Formula for Force Output: F = P * A Where: F = Force (lbs) P = Pressure (psi) A = Area of the piston (square inches) Calculate: P (psi): A (square inches): Calculate Force Result: N/A lbs

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• thedmtechnologies
• July 18, 2024
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Gear Parameter Calculations Gear Parameters (special-1)

  Home Blogs Gear Parameter Calculations Gear Parameters (special-1) Maintenance Downloadable Formats July 18, 2024 Gear Parameter Calculations Output Measurement System: Metric (M)Inch (I) Number of Teeth: Normal Pressure Angle: Base Diameter: Lead:

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• thedmtechnologies
• July 18, 2024
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Gear Parameter Calculations Tooth Thickness to Span

  Home Blogs Gear Parameter Calculations Tooth Thickness to Span Maintenance Downloadable Formats July 18, 2024 Normal Tooth Thickness to Span Measurement (External Gears) Measurement System: Metric (M)Inch (I) Number of Teeth: Normal Module or Diametral Pitch: Normal Pressure Angle: Helix Angle: Specified Normal Tooth Thickness (at Pitch Diameter): Number of Teeth Spanned:

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• thedmtechnologies
• July 18, 2024
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Gear Parameter Calculations Span to Tooth Thickness

  Home Blogs Gear Parameter Calculations Span to Tooth Thickness Maintenance Downloadable Formats July 18, 2024 Span Measurement to Normal Tooth Thickness (External Gears) Measurement System: Metric (M)Inch (I) Number of Teeth: Normal Module or Diametral Pitch: Normal Pressure Angle: Helix Angle: Specified Span Dimension (mm): Number of Teeth Spanned:

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