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Eaton’s padmount VisoVac three-phase medium-voltage switchgear utilizes Eaton’s proven vacuum fault interruption technology and is available with visible isolation and visible grounding capability. The VFI, isolation and grounding positions are internally interlocked so proper sequence operation is ensured. The VFI mechanism is equipped with a spring charge motor that allows for seamless remote operation without the need for external motor operators.
| Maximum Design Voltage | 17.5 | 29.3 |
| Line to ground (kV BIL) | 95 | 125 |
| Open Contact (kV BIL) | 95 | 125 |
| Continuous Current, 50/60 Hz (A) | 900 | 900 |
| Momentary Withstand (asym pk.) |
Up to 104 |
82 |
| 1s sym withstand rating, kA |
Up to 40 |
31.5 |
| Sym interrupting rating, kA |
Up to 40 |
31.5 |
| Fault Close (asym pk.) |
Up to 104 |
82 |
| Mechanical Operations |
10,000 |
10,000 |
| IEEE Standard Requirements for Subsurface, Vault, and Padmounted Load-Interrupter Switchgear and Fused Load-Interrupter Switchgear for Alternating Current Systems up to 38 kV |
IEEE Std. C37.74-2014 |
|
| IEEE Rating Structure for AC high-voltage Circuit Breakers |
IEEE Std. C37.04 |
|
| IEEE Standard Test Procedure for AC High-Voltage Circuit Breakers Rated on a Symmetrical Current Basis |
IEEE Std. C37.09 |
|
| IEEE Standard for Pad-Mounted Equipment – Enclosure Integrity |
IEEE Std. C57.12.28-2005 |
|
| IEEE Standard for Separable Insulated Connector Systems for Power Distribution Systems above 600V |
IEEE Std. 386 |
|
| IEEE Standard for Secondary Network Transformers |
IEEE Std. C57.12.40 |
| V1 Series | Vacuum interruption only |
|
| V2 Series | Vacuum interruption, visible isolation | |
| V3 Series | Vacuum interruption, visible isolation and visible ground |
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