CT Sensors

• CT sensors - An Introduction
  • Basics
  • Burden resistor
  • Isolation
  • Safety
  • Installing a CT
  • References and further reading
• Current Transformer Installation
  • The Details
• CT Sensors - Interfacing with an Arduino
  • Calculating a Suitable Burden Resistor Size
  • Adding a DC Bias
  • Arduino Sketch
• How to Build an Arduino Energy Monitor - Measuring Mains Current Only
  • Step 1: Gather Components
  • Step 2: Assemble the Electronics
  • Step 3: Upload the Arduino Sketch
• Measurement Implications of ADC Resolution at Low Current Values
• Extending the Current Transformer Cable – emonPi2 & emonTx4 Onwards
  • Materials
  • Choice of cable
  • Wiring
  • Can I use a ready-made headphone extension lead?
  • Can I use network cable?
  • I have several C.T’s in one place. Can I use a multi-core cable?
  • What if I see a significant power when there should be none?
  • Theory
• YHDC SCT-013-000 Current Transformer
  • Synopsis
  • Test Rig
  • The YHDC Current Transformer
  • Tests
  • 1. Ratio & Saturation.
  • 2. Phase error.
  • Conclusions
  • Appendix
• YHDC SCT006 Current Transformer
  • Synopsis
  • Test Rig
  • The YHDC Current Transformer
  • Tests
  • Conclusions