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Dry-type transformers and switchgear for industrial and commercial projects

Power distribution for factories, workshops, commercial buildings, campuses and critical facilities — where the transformer sits inside or next to the building and cannot be a fire risk.

The problem we solve

Indoor substations that do not compromise the building

Inside a plant or a building, an oil-filled transformer brings questions the utility never has to ask: fire load, oil containment, ventilation and access for maintenance. Cast-resin dry-type transformers remove most of that problem, and our packaged substations can be designed so the equipment arrives tested and ready to connect.

The second question is the load. Motors, welding equipment and variable-speed drives produce harmonics and inrush that punish the wrong transformer. We will size the unit against your actual load profile rather than a generic derating rule.

Cast-resin dry-type transformers from 30 to 2500 kVA at 10 and 20 kV, Class-1 and Class-2 energy efficiency
Metal-clad withdrawable switchgear KYN28A-12 for the incoming and outgoing feeders
LV assemblies: GGD fixed switchboards, JP outdoor distribution cabinets, XL21 power cabinets
European type packaged substations where an indoor room is not available

Factory testing of dry-type and oil-immersed transformers

Typical configurations

We size from the load list, not from a default. Send the connected load, the duty cycle and the fault level and we will come back with a proposed arrangement.

Application	Typical configuration
Factory or workshop indoor substation	Cast-resin dry-type transformer SCB series, 630–2000 kVA, 10/0.4 kV, Dyn11, IP20 or IP23 enclosure
Heavy motor or drive load	Dry-type or oil-immersed transformer sized for harmonic content and inrush, with reduced losses
Commercial building or campus	Two dry-type transformers for redundancy, plus LV assemblies with busbar connection
Outdoor distribution on site	American type packaged substation, 400–1250 kVA, with LV distribution compartment
Incoming switchgear	KYN28A-12 metal-clad withdrawable switchgear with protection and interlocks
Low voltage distribution	GGD fixed switchboard or XL21 power cabinet, with JP outdoor cabinet for yard installation

Fire and location

Dry-type construction removes oil, so the unit can be installed closer to occupied areas, with less containment and less fire protection work.

Sized to the load

We check harmonic content, starting duty and ambient temperature before proposing a rating, and we tell you when a simple rating increase is not the answer.

Single point of responsibility

Transformer, switchgear and LV assemblies are made and tested by the same team, so interfaces and clearances are already resolved.

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All products

Eight product families, 30 to 2500 kVA, 6.6 kV to 35 kV.

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Send us your load list

Connected load, duty cycle, fault level, ambient conditions and where the room is. We will propose the arrangement and the rating.

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