The Bushing Insert threads into a universal bushing well to provide thesame function as an integral loadbreak bushing. Using bushing inserts makes field installation and replacement possible and efficient. Bushing inserts and elbow connectors comprise the essential components of all loadbreak connections.
Tests conducted in accordance with IEEE/ANSI Standard 386.
· Partial discharge minimum extinction voltage - 19kV
· AC 60Hz for 1min(kV crest)-54kV
1.LOCKING GROOVE
Locking groove assures proper installation by “locking" into elbow.
2.INDICATOR RING
Bright yellow ring provides close indication and assures a quality connection.
3.INSULATION LAYER
High quality peroxide cured EPDM Insulation is mixed and formulated in-house for complete control of rubber characteristics.
4.SEMICONDUCTING SHIELD
Precision molded peroxide cured conducting shield provides ground shield continuity.
5.ARC SNUFFER ASSEMBLY
Arc quenching material extinguishes gas during loadbreak operations.
6.FINGER CONTACT
Copper contact provides a consistent current transfer during switching and fault close operations.
7.DRAIN WIRE TAB
Drain wire tabs provide a convenient point to connect drain wire to ensure grounding of the connector shield.
8.HEX BROACH
5/16" hex broach permits installation with torque tool.
9.THREADED CONNECTION TO BUSHING WELL
3/8"-16 UNC copper threads provided connection to bushing well.
- MS
- 25-200
- LBI
| Voltage Class | 25kV |
|---|---|
| Max. Voltage Rating Phase to Phase | 26.3kV |
| Max. Voltage Rating Phase to Ground | 15.2kV |
| AC 60Hz for 1 Minute | 54kV |
| DC for 15 Minute | 78kV |
| BIL and Full Wave Crest | 125kV |
| Partial discharge minimum extinction voltage(＜10pc) | 19kV |
| Continuous | 200 amps rms |
|---|---|
| Switching | 10 operations at 200 amps rms at 26.3kV |
| Short Time | 10000 amps rms symmetrical for 0.17s 3500 amps rms symmetrical for 3.0s |
