What is a pole mounted recloser?

Reclosers are small circuit breakers located at the top of distribution poles and are typically used on very long distribution feeders. Their function is to isolate a section of the feeder in fault or overload conditions and thereby minimize the number of customers without service.

What is the purpose of 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.

How does a TripSaver work?

TripSaver II reclosers replace fuses on lateral lines. Most fuses expel debris and sparks when they operate for both temporary and permanent faults. However, in place of the fuse, TripSaver II reclosers use vacuum interrupters that do not expel debris and sparks, which helps mitigate the risk of wildfires.

What is a line Sectionalizer?

A sectionalizer is a protective device that automatically isolates a faulted section of line from the rest of the distribution system. A sectionalizer should not be confused with a recloser; it does not interrupt fault current.

How does an automatic recloser work?

The operating principle of an auto-recloser is equally simple: when a fault is detected, the breaker trips. The controller then waits for a predetermined time before reclosing the breaker.

What is an IntelliRupter?

IntelliRupter is a unique alternative to an automatic circuit recloser. It was designed from the ground up to accommodate advanced distribution automation functions including S&C’s proven IntelliTEAM II®, along with SCADA functionality. IntelliRupter provides significant benefits for radial line protection too.

Will a Sectionalizer open under load?

After a pre-selected number of current interrupting operations have been “seen”, the sectionalizer opens and the feeder or line on the load side of the sectionalizer is not re-energized.

What is a Scada switch?

Scada-Mate Switches are integer style three-pole, group-operated load interrupter switches available in voltage ratings of 14.4 kV through 34.5 kV. They’re factory-assembled on a one-piece base and include an integral stored-energy operating mechanism.

How does a Vista switchgear work?

Vista Underground Distribution Switchgear features load-interrupter switches for switching 600-ampere main feeders. The switchgear also features microprocessor- controlled, resettable vacuum fault interrupters for switching and protection of 600-ampere main feeders and 200-ampere taps, laterals, and subloops.

What is the purpose of Sectionalizer?

A sectionalizer is a protective device that automatically isolates a faulted section of line from the rest of the distribution system.

What are different types of auto reclosing techniques?

What are the types of auto-recloser?

• High-speed single-pole reclosing.
• High speed three poles reclosing (HTAR)
• Delayed three-phase reclosing (DAR)
• DAR with a deadline(DL) and synchronism check(SC)
• HTAR with DL and SC.
• HTAR with Parallel line check (PC)

How does an auto-recloser work?

What are the components of a power recloser?

Each recloser consists of an interrupting module, with an embedded current transformer, and mechanism mounted to an aluminum head casting. Each mechanism and interrupter assembly is mounted to a thermoset polymer enclosure suitable for pole or substation mounting.

How do the reclosers work?

Each recloser utilizes a magnetic actuator for fast, efficient latching. A rare-earth neodymium magnet provides latching forces in excess of 240 pounds, eliminating the need for mechanical latches.

What type of cable do I need to power my recloser?

The reclosers utilize the standard 18-pin junction-box cables and 37-pin control cable to carry the source and integrated load side voltage sensing signals from the recloser to the control. Additional voltage sensing cables are not required when using the voltage sensing feature for source and load.

Are reclosers tested and adjusted at the factory?

G108 .1 All reclosers are carefully tested and adjusted at the factory to operate according to published data. Well-equipped test facilities, detailed testing procedures, and thoroughly trained personnel assure accurately calibrated equipment.