If you'd like an article that doesn't already appear in our wiki or in this list, please use the "Comment" page or email techsupport@ccontrolsys.com.

• Confirm WattNode Meter Readings - How does CCS recommend confirming that the WattNode readings are correct?
• Troubleshoot Incorrect Readings - Instructions on troubleshooting incorrect readings. We may want different articles for pulse meters vs. those with communication interfaces.
• Accuracy When Measuring Harmonics or Distorted Waveforms - Discuss that the WattNode measures real power including harmonics. But the reactive power measurement is just the fundamental reactive power. Discuss how harmonic currents don't cause real power unless there are corresponding harmonics in the voltage, same for DC. Discuss CT frequency response.
• Crest Factor - Move crest factor content from CT Selection article. Show diagrams with a sinusoid waveform and one with a high crest factor. Explain and illustrate how clipping by A/D results in reading errors.
• LCD Calculator - Add an article about the LCD calculator, perhaps with a download.
• LCD Power Resolution - Update the existing article. Explain why 20 Hz is better than 4 Hz.
• RS-485 Biasing and Termination
• Variable Frequency Drive Line Filter Recommendations
• Electrical Terminology - already exists, but add more terms from Edison Electric book and from internal wiki.
• Try to make a CT wiring error simulator, so that the measured results can be compared to simulated results for different wiring errors like reversed or incorrectly phased CTs.
• Power Factor and Phase Angle Errors - document real power measurement accuracy as a function of the power factor and CT phase angle errors.
• Variable Frequency Drive Line Filter Recommendations
• Installing Current Transformers
• Why CT Phase Angle Matters - Explain the importance of CT phase angle error

FAQ

• Can I use different sized CTs on different phases? Yes for Modbus and Pulse models.
• What is the main difference between 0.333 VAC CTs and 5 amp output CTs?