Monitoring 480V and 600V delta systems
- Never attempt to connect the eGauge directly to a 480V delta or 600V delta service using the "Lx" and "N" terminals.
- Connecting an eGauge meter directly to a 480V delta or 600V delta service will destroy the meter. This is not covered under warranty.
- The eGauge requires a connection to the "N" terminal, failing to connect a proper "N" can result in device damage.
The eGauge is capable of directly measuring voltages up to 277V L-N (480V L-L). In the case of a delta system with no neutral, the maximum phase-to-phase voltage is 277V as the "N" terminal of the meter has one of the line voltages connected.
A 480V or 600V delta without a neutral may be monitored by the eGauge using EV1000 High Voltage Sensors.
The below diagram shows a 480V delta system. 600V delta systems may be measured in an identical manner.
EV1000 high voltage sensors are CTid-compatible. See this article for instructions on configuring CTid-compatible sensors.
The register configuration for the example shown above is simply S1xS4 + S2xS5. Note that your configuration may differ depending on which ports are used.
Proper CT/phase pairing is required for accurate readings.