Six medium voltage units will help light the way for planes on three new runways under construction at one of the world’s busiest airports – Chicago’s O’Hare International. The two designs were: 1) Step up Transformers with the primary connected to Load Break Disconnect Switches that were installed to the outside of the enclosure; or 2) Step down transformers with the primary connected to NX Arc Strangler Fuses in mountings that were installed in a compartment of the enclosure.
Airport Runway Transformer Features:
- Step Up Power: 25 kVA [2] and 10 kVA [1]
- Step Up Primary Volt: 480
- Step Up Secondary Volt: 2400
- Step Down Power: 25 kVA [2] and 10 kVA [1]
- Step Down Primary Volt: 2400
- Step Down Secondary Volt: 120/240
- Single Phase
- Copper Wound, VPI Coils w/ Electrostatic Shield
- NEMA 3R Cold Rolled Steel Pad Mounted Enclosure
- Primary Load Break Disconnect Switch [Step Up]
- Primary Fuse NX Arc Strangler [Step Down]
- Distribution Arrestor
