Phone:
(701)814-6992
Physical address:
6296 Donnelly Plaza
Ratkeville, Bahamas.
Power Transformer
Cast-resin dry-type and oil-immersed transformers for building distribution, industrial facilities and substations. Explore the product forms and installation details that shape selection.
Power transformers
Power transformer range
Explore dry-type and oil-immersed transformers for distribution and substation projects. Select a product to review its specifications, technical parameters and capacity data.
Dry-type transformers
SCB / DRY TYPE
SCB Cast-Resin Distribution Transformer
Cast-resin unit for indoor building distribution, with room ventilation, enclosure and HV/LV terminations to plan.
SCB / DRY TYPE
SCB Cast-Resin Transformer for Infrastructure
Cast-resin unit for infrastructure distribution; coordinate electrical duty, insulation and indoor interfaces with the network scheme.
SCB / 20–35 KV
20–35 kV Dry-Type Transformer
SCB epoxy-resin dry-type construction for indoor infrastructure distribution.
SCBH / DRY TYPE
SCBH Amorphous Alloy Dry-Type Transformer
Amorphous-alloy core in a dry-type form; compare the project loss schedule and installation requirements.
Oil-immersed transformers
OIL-IMMERSED
Oil-Immersed Distribution Transformer
Oil-filled distribution unit for local networks; plan tank position, bushings, tap arrangement and site access.
OIL-IMMERSED
Oil-Immersed Transformer for Industrial Distribution
Oil-filled unit for industrial and utility distribution; coordinate cooling, terminals and service access.
OIL-IMMERSED
Oil-Immersed Power Transformer for Substations
Oil-filled power transformer for substation layouts; plan bushings, protection interfaces and foundation.
66 KV / OIL-IMMERSED
66 kV Oil-Immersed Transformer
Oil-immersed construction for industrial and regional distribution connections.
110–132 KV / OIL-IMMERSED
110–132 kV Oil-Immersed Transformer
High-voltage oil-immersed construction for regional grid applications.
THREE-PHASE / POLE-MOUNTED
Three-Phase Pole-Mounted Distribution Transformer
Three-phase pole-mounted distribution form for overhead network installations.
SINGLE-PHASE / POLE-MOUNTED
Single-Phase Pole-Mounted Transformer
Single-phase pole-mounted oil-immersed form for distribution networks.
Transformer details
Product details
Product overview
Models and series
Key specifications
| Item | Value |
|---|
Technical parameters
| Parameter | Value |
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Model and capacity tables
Select the voltage pair, capacity, impedance and loss values for the required model.
Construction and application
| Item | Details |
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Information for selection
What to share
A single-line diagram, load schedule or existing nameplate helps define the electrical duty. Add a site drawing if space or access is limited.
Transformer construction
Dry-type and oil-immersed transformers
Cast-resin dry-type equipment uses air cooling, while oil-immersed equipment places the active part in an oil-filled tank. Compare their installation and service interfaces before specifying a unit.
Construction 01 / 02
Cast-resin dry-type transformers
For indoor distribution rooms where ventilation and service access can be planned around the transformer.
- Construction
- A magnetic core and resin-cast windings form a dry-type assembly cooled by air. Enclosure, fan assistance and temperature monitoring depend on the selected model.
- Site context
- Indoor commercial and industrial distribution rooms, including transport facilities. Allow for the room environment and access.
Construction 02 / 02
Oil-immersed transformers
For substation, utility or industrial distribution duties where the tank and network connections fit the site layout.
- Construction
- The core and windings sit in an oil-filled steel tank. Bushings provide network connections; cooling and tap arrangements depend on the selected model.
- Site context
- Substations, utility networks and industrial supply. Review foundation, clearances, oil handling and maintenance access for the planned installation.
Specification process
Specify a transformer for your project
Start with the electrical duty and site requirements, then compare construction, drawings and required documents.
From project brief to proposed unit
- 01
Set the electrical duty
Provide the voltage ratio, capacity basis and network connection. Existing equipment details help with replacement projects.
- 02
Choose construction
Compare dry-type and oil-immersed arrangements against site conditions, access, ventilation and protection.
- 03
Check installation drawings
Review outline and connection drawings for installation space, cable or busbar entry and maintenance clearances.
- 04
Identify required documents
List the data sheet, applicable test records and compliance documents needed for procurement.
A complete brief makes the proposed unit easier to assess against the project.
Construction comparison
Compare dry-type and oil-immersed transformers
Construction affects heat management, connection layout and the space needed on site.
| Review point | Dry-type transformer | Oil-immersed transformer |
|---|---|---|
| Insulation system | Cast-resin windings provide dry insulation; assess enclosure and site conditions. | The active part sits in insulating oil inside a tank; specify the oil and tank arrangement for the project. |
| Heat rejection | Plan an air path and room or enclosure ventilation; confirm whether fans are part of the duty. | Allow for heat rejection from the tank or radiators; confirm the cooling class and clearance. |
| Site provision | Check enclosure, clearances and service access for the selected location. | Check tank footprint, foundation, service access and applicable oil-management rules. |
| Connection layout | Match HV/LV terminals to cable or busbar entry and earthing. | Match bushings and terminations to the cable route, clearances and earthing. |
| Monitoring | Specify winding temperature sensing, alarms and fan control when required. | Specify oil temperature or level indication and protection accessories when required. |
Quotation information
Information for a transformer quotation
Share the electrical duty and installation conditions together. Include values already set by the project and identify any open requirements.
Useful project files
A single-line diagram, load schedule, existing nameplate or site plan can clarify the request. Include only what is available.
Application context
Transformer applications
See how installation interfaces differ in building rooms, substations and renewable generation.
Building distribution room
Commercial, transport and industrial buildings place the transformer inside a wider distribution arrangement.
Design considerations
Coordinate equipment access, heat rejection and the connection to adjacent switchgear or busbar before fixing the exact unit.
Utility or industrial substation
The transformer works with station switching, protection and civil works rather than as an isolated item.
Design considerations
Place it within the station scheme; allocate foundation, cable and oil-management responsibilities when oil-filled equipment is proposed.
PV or wind collection
Generation projects place transformer duty between generation equipment and a collection or grid circuit.
Design considerations
Decide whether the scope is a standalone transformer or a complete step-up station, then review the operating profile and protection boundary.
Specification questions
Questions before specifying a transformer
Answers to common questions about selection, replacement, scope and documents.
How is the transformer model selected?
Start with the voltage ratio, capacity basis, installation setting and construction preference. Then compare the proposed unit with the electrical schedule, site interfaces and required documents.
Can an existing transformer be replaced by matching voltage and kVA alone?
No. Use the existing nameplate and single-line diagram to check electrical requirements, including vector group, impedance and tap arrangement. Compare load duty, footprint and terminal layout, and request model-specific drawings before treating the replacement as compatible.
What should be checked before parallel operation?
Check voltage ratio, vector group, impedance, and tap range and settings against the network scheme and existing units. Matching capacity by itself does not establish compatibility.
Is the enquiry for a standalone transformer or a complete step-up station?
Define the supply boundary in the project brief. If a complete station is required, identify switching, protection, civil and connection interfaces as well as the transformer duty; confirm the proposed package for that project.
Which documents should accompany a proposed model?
State the required data sheet, outline and connection drawings, applicable test records and compliance documents in the enquiry. Confirm availability and applicability for the exact model before using them for procurement.