The Loadbreak Feedthru Insert threads onto a standard 200A bushing well and provides dual loadbreak bushing interfaces. It can convert radial-feed transformers to feedthru transformers and add in-life arrester protection if needed. The torque limit ratchet feature prevents the bushing well stud from breaking during installation. The ratchet feature allows users to rotate the feedthru insert for 360° to orient the feedthru insert in the desired position.The Loadbreak Feedthru 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 - 19kV
· AC 60Hz for 1min(kV crest)-54kV
1. LOCKING GROOVE
Locking groove assures proper installation by “locking” into elbow.
2. ARC SNUFFER ASSEMBLY
Arc quenching material extinguishes gas during loadbreak operations
3. INDICATOR RING
Bright yellow ring provides close indication and assures a quality
connection.
4. FINGER CONTACT
Copper contact provides a consistent current transfer during switching
and fault close operations.
5. INSULATION LAYER
High quality peroxide cured EPDM Insulation is mixed and formulated in_x0002_-house for complete control of rubber characteristics.
6. SEMICONDUCTING SHIELD
Precision molded peroxide cured conducting shield provides ground
shield continuity.
7. BRASS BUS BAR
Provide consistent current carry capability during operation.
8. TORQUE-LIMITING RATCHET
The ratchet feature allows users to rotate the feedthru insert for 360° to orient the feedthru insert in the desired position and protect the stud from damaging.
9. THREADED CONNECTION TO BUSHING WELL
3/8’’-16 UNC threads provided connection to bushing well.
- MS
- 25kV 200A
- LFIR
| 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 |
