TPR — Test Point Reset
Sales and Ordering Information
Please contact Customer Service at
SEL Lake Zurich, Illinois at +1.847.362.8304
or by email at csrlz@selinc.com
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Test Point Reset (TPR) fault indicators are designed to aid in fault location on underground distribution systems that use terminators having test points. TPRs are easily installed on 200 A or 600 A separable connectors with test points. TPRs are line-powered using the potential present on the test point of elbow terminators (no load current is required).
TPR circuitry is epoxy-encapsulated and housed within an EPDM rubber boot, and the display target is hermetically sealed within a polycarbonate housing. This rugged construction makes TPRs suitable for application in harsh underground environments. They are available in single- or three-phase versions with integral or remote displays. TPRs automatically reset upon restoration of system voltage and are a quick, economical way to apply fault indication to underground systems.
- The most economical solution for underground applications.
- Easy to install on most brands of 200 A or 600 A class elbows with capacitive test points.
- Automatic reset upon restoration of system voltage.
- Ideal for pad-mounted transformer and switchgear applications.
- Several remote display options eliminate the need to open an enclosure cabinet to determine the indicator’s status.
- Available in single- and three-phase models.
- Simply remove the fault indicator to access the test point.
- Auxiliary contact option for SCADA compatibility.
- Junction shield option prevents false tripping due to adjacent phase effects. Please consult SEL.
| Power Source |
Capacitive test point voltage |
| Nominal Trip |
Ratings 60 to 1200 A |
| Trip Tolerance |
±10% |
| 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 for 10 cycles at 60 Hz |
| Trip Response Time |
1 ms |
| Inrush Restraint Response Time |
300 ms (add “IR” option) |
| Elbow Style |
200 A or 600 A class with test point |
| Housing Material |
Conductive EPDM rubber |
| Temperature Range |
—40° to +85°C |
 Tamperproof Bolt Display
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 BEACON Bolt® Display
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 Standard “V” Display
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 Three-Phase “3” Display
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 Large “L” Display
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 RadioRANGER® Remote Fault Reader Display
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Flyers
Guideform Specification
Installation Instructions