Current Transformer on Incorrect Phase

  1. Locate the CT on the Meter page in the Device Setup interface in Tesla One.
  2. Determine which phase the CT should be measuring.
    • Backup Gateway 2 with Tesla 100 A CTs:
      CT1Line 1
      CT2Line 2
      CT3Defaults to Line 1 but can be configured as Line 2 during device setup in Tesla One
    • Tesla Remote Meter with Tesla 200 A CTs:
      CT1Line 1
      CT2Line 2
      CT3Line 2
      CT4N/A (CT4 functionality will be available at a later date)
  3. Verify the CT is measuring the correct phase.
Figure 1. Backup Gateway 2 with Tesla 100A CT: Correct Phase (top) and Incorrect Phase (bottom)
Informational PurposesAn informational icon, calling your attention
Note
In the examples above, the CT is monitoring a solar inverter conductor, which is why only (1) CT is required.
Figure 2. Tesla Remote Meter with Tesla 200 A CTs: Correct Meter and CT Installation
Figure 3. Tesla Remote Meter with Tesla 200 A CTs: Incorrect CT Installation - CTs are Measuring Incorrect Phases
Figure 4. Tesla Remote Meter with Tesla 200 A CTs: Incorrect Meter Installation - Main Breaker Swapped Busbar Phases, Resulting in Voltage Line Harness Being Wired Incorrectly
Figure 5. Tesla Remote Meter with Tesla 200 A CTs: Incorrect Meter Installation - Installer Skipped a Breaker Pole, Resulting in Voltage Line Harness Being Wired Incorrectly