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Single-phase pole-mounted distribution transformers from 15 kVA to 333 kVA, 7.2–35 kV, conventional or CSP, for rural and overhead distribution networks.
Pole-mounted transformers serve overhead rural and suburban distribution, hanging from a single pole and stepping 7.2 kV to 35 kV down to 120/240 V, 230 V or 400/230 V. Millenium builds single-phase units from 15 kVA to 333 kVA in conventional and completely self-protected (CSP) designs, with round or rectangular tanks, one or two HV bushings and IEEE C57.12.20 or IEC 60076 construction.
Low-loss cores, toroidal coil options, copper or aluminium windings and 50 Hz or 60 Hz designs let each unit be matched to the utility's specification.
No products match that search. Try a rating (e.g. “1600 kVA”), a voltage (“33 kV”) or a type (“ring main unit”) — or describe what you need and we will configure it.
Key differences between IEC and ANSI/IEEE transformer standards for 60 Hz markets: voltages, BIL, temperature rise, bushings, testing and UL listing.
· 8 min read
11 kV/0.4 kV pole-mounted distribution transformer — Rural distribution network extension. 11 kV incoming / 0.4 kV outgoing, 50 Hz.
Read the project sheet →A completely self-protected transformer has an internal primary fuse, a secondary circuit breaker and a surge arrester built in, so it protects itself and the network without external cut-outs — common in North American utility practice.
120/240 V for ANSI markets, 230 V or 240 V single-phase for IEC markets, and 400/230 V or other ratios on request.
Yes. Core and winding designs are frequency-specific; state the network frequency, the utility standard and the required kVA when you enquire.
The catalogue shows typical configurations. Every product is built to order — send your single-line diagram or spec and we will quote the exact unit.