The Loadbreak Bushing Insert threads onto a standard 200A bushing well. The combination of the bushing well and bushing insert perform the same function as a one piece integral loadbreak bushing, while providing the flexibility to change the bushing insert in the field, without taking the transformer or other apparatus out of service. The bushing insert and loadbreak elbows are the primary components in all IEEE loadbreak connections. The Loadbreak Bushing Insert meets all the requirements of IEEE Standard 386, and is fully interchangeable with competitor's products and mating products that also meet IEEE Standard 386. When installed with mating components, the bushing insert provides a fully shielded and fully submersible connection for loadbreak applications.
Tests conducted in accordance with IEEE/ANSI Standard 386.
-Partial discharge minimum extinction voltage - 15kV
-AC 60Hz for 1min(kV crest)-34kV
1.LOCKING GROOVE
Locking groove assures proper installation by "locking" into elbow.
2.INSULATION LAYER
High quality peroxide cured EPDM Insulation is mixed and formulated in-house for complete control of rubber characteristics.
3.SEMICONDUCTING SHIELD
Precision molded peroxide cured semiconducting shield provides ground shield continuity.
4.INDICATOR RING
Bright yellow ring provides close indication and assures a quality connection.
5.FINGER CONTACT
Tin plated copper contact provides a consistent current transfer during switching and fault close operations.
6.ARC SNUFFER ASSEMBLY
Arc quenching material extinguishes gas during loadbreak operations.
7.ALUMINUM BUS BAR
Fixed finger contact.
8.DRAIN WIRE TAB
Drain wire tabs provide a convenient point to connect drain wire to ensure grounding of the connector shield.
- MS
- 15-200
- LBI
| S.Dim | 15kV |
|---|---|
| S2 | 160.5 |
Feedthru Insert profile and stacking dimensions as referenced in IEEE Std 386™-2016 standard.
| Voltage Class | 15kV |
|---|---|
| Max. Voltage Rating Phase to Phase | 14.4kV |
| Max. Voltage Rating Phase to Ground | 8.3kV |
| AC 60Hz for 1 Minute | 34kV |
| DC for 15 Minute | 53kV |
| BIL and Full Wave Crest | 95kV |
| Partial discharge minimum extinction voltage(< 10pc) | 15kV |
| Continuous | 200 amps rms |
|---|---|
| Switching | 10 operations at 200 amp 10s rms at 14.4 kV |
| Short Time | 10 000 Arms symmetrical for 0.17s 3500 Arms symmetrical for 3.0 s |
