The SEL TPR Test Point Reset is an underground faulted circuit indicator (FCI) that attaches to capacitive test points in single- or three-phase systems. It replaces the protective cap on capacitive test points, acting as the new cap with the added benefit of providing fault indication. The TPR eliminates the need to account for the position of the concentric neutral, as is common with cable-mounted FCIs, and automatically resets upon system voltage restoration.
The TPR is easy to install with any industry-standard hotstick and the molded rubber hook eye. Powered by voltage, the TPR does not have a minimum load current requirement, making it great for lightly loaded circuit applications.
Easy, Cost-Effective Solutions—Choose the most cost-effective fault indicator in the industry for elbow test point applications. The Test Point Reset (TPR) is easy to install on most brands of 200 A- or 600 A-class elbows with capacitive test points and is ideal for pad-mounted transformer and switchgear applications.
SEL Fault Indicator for Wind Farms—Install the TPR in wind farms that use terminations equipped with capacitive test points located on the T-body of 600 A terminations. By selecting a high nominal trip rating and a longer trip response time, you can use this cost-effective, nondirectional fault indicator to find faults on circuits with distributed generation.
Solar Photovoltaic Plants—Apply the TPR in solar photovoltaic plants that use terminations equipped with capacitive test points located on the T-body of 600 A terminations.
Single- and Three-Phase Feed-Through Pad-Mounted Transformers—Monitor the cable in feed-through transformers to quickly identify faults, including those caused by dig-ins, aging cables, and wildlife.
Junction Cabinets—Speed up FCI deployment in junction cabinets on elbows and T-bodies with test points. The TPR’s simple installation is ideal for the space constraints and large number of cables in the cabinets.
|Phase||1 or 3 Ø|
|Nominal Trip Rating||60 to 1,200 A|
|Power Source||Capacitive test point voltage|
|Nominal Trip Ratings||60 to 1,200 A|
|Reset Voltage (L-N)||≥5 kV|
|Reset||Automatic at minimum voltage|
|Reset Time||3 minutes typical, dependent on system voltage|
|Maximum Fault Current||25 kA|
|Trip Response Time||1 ms (optional 24 ms with delayed trip)|
|Inrush Restraint Response Time||300 ms|
|Elbow Style||200 A- or 600 A-class with test point|
|Housing Material||Conductive EPDM rubber|