S&C INTELLIRUPTER PULSECLOSER INSTALLATION MANUAL Pdf Download (2024)

FAQs

How much does an IntelliRupter cost? ›

Each IntelliRupter cost about $35,000, which means the set of three is a little over $100,000.

Conventional reclosers stress the circuit with fault current every time they reclose into a fault. But after an IntelliRupter fault interrupter interrupts a fault, it uses 95% less energy through PulseClosing Technology to intelligently test for fault current before closing.

Block ground trip prevents inadvertent trip due to the unbalancing created by diverting current on one or two phases through the single-phase bypass switches.

What is a recloser? A recloser is an automatic, high-voltage electric switch. Like a circuit breaker on household electric lines, it shuts off electric power when trouble occurs, such as a short circuit.

Reclosers exploit the statistical distribution of fault types to improve reliability. 80% of faults are temporary, such as foreign objects coming into contact with powerlines or lightning strikes. The recloser detects these faults and trips, but then rapidly recloses to restore power.

A recloser may be thought of as a light-duty circuit breaker (even though it is not a circuit breaker). Conversely, equipped with the appropriate protective relays, a high-voltage circuit breaker can serve in a reclosing role as well.

Opto-isolators are used for signal isolation between circuits in the mA range. SSRs are used to switch power in the amps range (0.1 to hundreds). One disadvantage with SSRs is that, when on, a little voltage is dropped across them and they dissipate some heat. For more than a couple of amps a heatsink is required.

A sectionalizer should not be confused with a recloser; it does not interrupt fault current. It only counts the number of operations of an interrupting device that feeds the circuit, such as a recloser or relay-controlled breaker back at the substation.

A load breaker switch, also known as an LBS or simply a load switch, is a manually or remotely operated device used for the safe disconnection of electrical equipment from the power supply. Unlike reclosers, load breaker switches do not possess automatic fault detection and restoration capabilities.

REF630 has been designed to be the main protection for overhead lines and cable feeders. The REF615 provides main protection for overhead lines, cable feeders, and busbar systems of distribution substations.

What is the difference between TL431 and TL432? ›

The TL432-Q1 has exactly the same functionality and electrical specifications as the TL431-Q1 device, but has a different pinout for the DBZ package. (1) For all available packages, see the orderable addendum at the end of the data sheet.