Heavy Diesel & Generator Engineering Suite
Heavy Diesel & Generator Engineering Calculators
Precision diagnostic and conversion calculation suite engineered for heavy diesel mechanics, plant operators, commercial electrical technicians, and fleet maintenance engineers.
⚡ 3-Phase & Single-Phase Generator Load & Breaker Sizer
Calculate Full Load Amps (FLA), actual active power (kW), apparent power (kVA), and recommended MCCB main breaker sizing.
🔧 High-Precision Bolt & Engine Torque Converter
Convert cylinder head, flywheel, main bearing, and connecting rod torque specs across all workshop standards.
⛽ Diesel Fuel Consumption & Tank Autonomy Estimator
Estimate hourly fuel burn and total running hours based on diesel generator load profiles (ISO 8528 standard).
🔌 Cable Voltage Drop & Sizing Calculator
Ensure compliance with BS 7671 and NEC standards (limiting voltage drop under 3% for critical power feeds).
🏎️ Engine Horsepower, kW & Shaft Torque
Compute engine brake horsepower (BHP), metric kilowatts (kW), and rotational shaft torque at rated RPM.
🔋 Diesel Engine Starter Battery CCA Sizer
Estimate the recommended Cold Cranking Amps (CCA) required to start diesel engines based on displacement and climate.
🔍 SAE J1939 Heavy Diesel Fault Code Finder
Quick lookup for heavy commercial diesel SPN (Suspect Parameter Number) and FMI (Failure Mode Identifier) codes.
📐 Standard 3-Phase Generator Full Load Amperage Quick Reference (400V @ 0.8 PF)
| Rating (kVA) | Rating (kW) | Full Load Amps (400V 50Hz) | Full Load Amps (480V 60Hz) | Main Breaker (MCCB) |
|---|---|---|---|---|
| 30 kVA | 24 kW | 43.3 A | 36.1 A | 50A / 63A |
| 60 kVA | 48 kW | 86.6 A | 72.2 A | 100A |
| 100 kVA | 80 kW | 144.3 A | 120.3 A | 160A |
| 150 kVA | 120 kW | 216.5 A | 180.4 A | 250A |
| 250 kVA | 200 kW | 360.8 A | 300.7 A | 400A |
| 500 kVA | 400 kW | 721.7 A | 601.4 A | 800A |
| 1000 kVA | 800 kW | 1,443.4 A | 1,202.8 A | 1600A ACB |
💡 Frequently Asked Heavy Diesel & Engineering Questions
How do you convert 3-Phase kVA to kW for diesel generator sets?
Multiply the generator kVA rating by the power factor (standard industrial diesel power factor is 0.8). Formula: kW = kVA × 0.8. For instance, a 150 kVA Perkins or Cummins generator produces 120 kW of prime electrical power.
What is the allowable voltage drop for generator power cables?
According to the National Electrical Code (NEC Article 210.19) and BS 7671 wiring regulations, voltage drop must not exceed 3% for branch power circuits and 5% total from service entrance to the furthest load.
How much fuel does a 100 kW diesel generator consume per hour?
Modern turbocharged diesel engines burn approximately 0.26 liters of diesel per kWh at 75% load. Therefore, a 100 kW generator operating at 75% load consumes roughly 19.5 liters (5.15 US gallons) per hour.