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Single Phase Pad-Mounted Transformers Series Single Phase Transformers
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Single Phase Pad-Mounted Transformers — 25/50/75 kVA Loop Feed
Single-phase pad-mounted transformers provide dead-front, tamper-resistant oil-immersed service for underground single-phase distribution, built to ANSI/IEEE C57.12 construction. Rated 25–75 kVA, 7.2/12/34.5 kV primary to 120/240V secondary, with loop-feed or radial-feed configurations for residential and rural underground networks.
Key Features
- ANSI/IEEE C57.12 dead-front pad-mounted construction
- 25–75 kVA single-phase, 120/240V secondary
- Loop-feed and radial-feed configurations
- Tamper-resistant compartmented enclosure
- Mineral-oil insulation with sealed tank
- Pad-mountable base for grade-level installation
Applications
- Underground residential distribution
- Rural and suburban single-phase feeders
- Commercial and campus underground service
- Loop-feed residential networks
Selection Guide
Capacity
Size 25–75 kVA from the connected single-phase load.
Feed
Choose loop-feed for ring networks or radial-feed for spurs.
- Frequently Asked Questions
What is a single-phase pad-mounted transformer?
A single-phase pad-mounted transformer serves underground single-phase distribution at grade level, typically 25–75 kVA with 120/240V secondary for residential loads.
Loop-feed or radial-feed?
Loop-feed provides two sources for ring operation; radial-feed is a single-source spur to the transformer.
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Complete equipment — no winding copper linkage
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