The purchase of every PhaseTrakker field unit includes free access to regional base Reference Units located across the United States and Canada.
Reference Units are available for companies that wish to purchase their own base units. For more information, contact your local product representative, or EDM.
(800) 687-4196 |
A set of Phasing Sticks is really just a high-range voltmeter that will determine if two phases match or not. Phasing Sticks can determine if two like-labeled conductors are actually different phases, but PhaseTrakker JR is required to determine which one is labeled correctly.
Yes. PhaseTrakker JR will display the phase angle of every voltage reading. This determines rotation.
PhaseTrakker JR will determine the phase of any energized conductor with at least 120V and has been used up to 500kV.
Measurements have been routinely taken with a distance of 800 miles between the Reference and Field Units. At this distance it is common to get some seasonal power angle shift across the power grid, so it’s a good idea to verify occasionally on a known phase before checking unknown equipment.
This power angle shift should be insignificant at the more normal maximum distances, say in the 300 mile range.
The Reference Unit takes a reading every second of the degrees to the next voltage sine wave zero crossing. When a Field Unit calls in, the Field Unit compares the local angle measurement to the cataloged value for that matching second. Since the GPS time is precisely the same at each location and since the phase “A” voltage is in phase at each location, the angle comparison determines how many degrees the Field Unit voltage is away from the Reference Unit, which then determines the phase identification as well.