• About CONTRELEC
• Hill Graham Spare Parts
• Module Health Check
• SCR Systems
• SCRLogic Training Simulator
• Troubleshooting
• Engineering Design
• PLC Programming
• Versapanel
• Switchboards
• Device Co-ordination
• Fault Calculations
• Harmonic Analysis
• Maintenance & Support
• Manuals & Procedures
• Calculators
• Contact Us

• AF Module CPU Replacement
• AF Module LCD Meters
• Jack-Up Upgrade
• SCR Replacement
• Land Rig PCR
• SCR Training House
• Surge Suppression
• Air Starter Panels
• Automatic Door Testing Unit

• FutureNet DASH

• SCRLogic Training Simulator
• Versapanel
• How to Commission a Generator Section
• Power Factor Correction for Drilling Rigs
• SCR Systems
• Calculations
• Troubleshooting Mud Pump Field Supplies
• Troubleshooting Power Limit Problems

Engineering Calculators

Here are a few handy engineering calculators:

• SCR Bridge Current Calculator
• Power Factor from Watts and VARs
• Power Factor from Watts, Current and Voltage
• Watts from Horsepower
• Horsepower from Watts
• Motor Full Load Current Estimator (KW)
• Motor Full Load Current Estimator (HP)