Transformers
Compare liquid-filled EHV, generator step-up and pad-mounted configurations with cast-resin or VPI dry-type options.
SWITCHGEAR, TRANSFORMERS & POWER EQUIPMENT
Put factory-direct sourcing to work for your schedule and budget. ISG coordinates equipment design, manufacturing and delivery around your specifications, helping simplify procurement and prepare your project for energization.
*Estimates only. Shipping times vary, and product-specific customization can change lead times.
Custom power equipment, designed and manufactured to your specifications.
Factory direct.
Built to your specifications.
PROJECTS & QUALITY
Factory direct. Proven in the field.Customers include hyperscale and colocation data center operators, EV fleet charging and charging infrastructure companies, multinational contractors, and global and private-label distributors.
Includes projects delivered with ISG's manufacturing partners. Customer names are confidential.
01 / PRODUCT PORTFOLIO
Explore the equipment behind the application.Find the equipment that fits your application. Compare configurations, review the source specifications and download an individual data sheet.
Compare liquid-filled EHV, generator step-up and pad-mounted configurations with cast-resin or VPI dry-type options.
Switchboards and panelboards distribute power. Motor control centers and industrial control panels support motor and process applications.
Coordinate transformer and distribution equipment in a project-specific skid, E-house or integrated package.

15 / 34.5 kV classes / up to 4,000 A
Air-insulated medium-voltage switchgear with draw-out vacuum circuit breakers.
IEEE C37.20.2 / UL / CSA

Up to 500 MVA / 345 kV class
Power transformers for transmission, grid interconnection, and substation reinforcement.
IEEE / ANSI / IEC

Up to 10 MVA / 36 kV class
Distribution transformer configurations for commercial facilities, EV charging, solar, and battery storage.
ANSI / IEEE / CSA / DOE

Up to 6,000 A / 480 or 600 V
Low-voltage distribution switchboards with configurable protection, bus construction, and monitoring.
UL 891 / CSA

Up to 345 kV / 1,175 kV BIL
Step-up transformer configurations for generation, renewable energy, and storage interconnection.
IEEE / IEC

Up to 1,200 A / 480 or 600 V
Low-voltage panelboards for commercial, industrial and data center facilities, including project-specified Remote Power Panel (RPP) applications.
UL 67 / CSA

300 kVA to 15 MVA / up to 36 kV
Dry-type transformer options for indoor and critical-space power distribution.
UL / IEEE / IEC

100 to 5,000 kVA / up to 36 kV
Vacuum pressure impregnated dry-type transformers with application-specific thermal classes.
UL / IEEE / IEC

Up to 600 V / PLC and automation control
PLC and automation control panels for industrial process and equipment applications.
UL 508A / CSA

Up to 3,000 A / 480 or 600 V
Draw-out intelligent motor control centers with configurable drive integration and motor protection.
UL 845 / CSA

Integrated containerized power equipment packages
Project-specific containerized power equipment packages with transformer and distribution equipment, structural fabrication and electrical integration.
Equipment-specific standards
Need a different voltage, enclosure or configuration? Send us your specifications. Final ratings, listing scope and delivery are established in the manufacturer’s quotation and technical submittal.
CUSTOM DESIGN & MANUFACTURING
Tell us the ratings, footprint, enclosure and operating requirements you need. We coordinate the design and manufacturing scope with our factory partners, from a single unit to a coordinated power equipment package.
DON’T LET PROCUREMENT SET THE PACE
For projects in the U.S., Canada, the U.K. and worldwide, start with the equipment scope and required date. A current quotation establishes the available production slot and delivery responsibilities.
*Estimates only. Shipping times vary, and product-specific customization can change lead times.
Factory estimates as of November 2026, subject to configuration and current factory capacity. EXW (ex works) means ready for pickup at the factory, before ocean freight and customs. The quotation confirms the schedule start, named EXW pickup point and logistics responsibilities. Freight, site delivery and commissioning require separate scope. Request your project schedule ↓
02 / STANDARDS & CERTIFICATIONS
Product-specific requirements. Clear documentation.Match the equipment to the standard your project requires. Review the published listings, standards and enclosure classifications by product.
| Product family | Standards and certifications |
|---|---|
| EHV Power Transformers | IEEE C57.12.00 / C57.12.90; ANSI C57.12.10; IEC 60076. Partial-discharge testing references IEEE C57.113; coating options reference IEEE C57.12.28. |
| Pad-Mounted Transformers | IEEE C57.12.90. Manufacturer references ANSI, IEEE, CSA and DOE compliance. |
| Low-Voltage Switchboards | UL 891; CSA; ANSI; NEMA. UL Listed and CSA Listed per manufacturer; UL file E541160. NEMA 1 / 12 / 3R options. |
| Medium-Voltage Switchgear | IEEE C37.20.2; ANSI C37 design references. Manufacturer reports UL and CSA type testing. NEMA 1 / 3R options. |
| Generator Step-Up Transformers | IEEE C57.12.00 / C57.12.90; IEC 60076. Applicable efficiency requirements, insulating fluid and spill-containment provisions are confirmed for the selected design and site. |
| Panelboards | UL 67; CSA; ANSI; NEMA. UL Listed per manufacturer. NEMA 1 / 12 / 3R / 4X options. |
| Cast-Resin Transformers | UL Listed; IEEE C57.12.01; IEC 60076-11. Fire class F1, climate classes C1, C2 and C3, and environmental class E2. |
| VPI Transformers | The shared CRT / VPI product page references UL Listed; IEEE C57.12.01; IEC 60076-11; ANSI / IEEE / CSA / DOE. Confirm classifications for the selected VPI design. |
| Industrial Control Panels | UL 508A; CSA. UL Listed per manufacturer; UL file E50611. NEMA 1 / 12 / 3R / 4X options. |
| Motor Control Centers | UL 845; CSA. UL Listed per manufacturer. NEMA 1 / 12 enclosure options. |
| Containerized Solutions | Package scope references IEC, IEEE, UL, CSA and DOE transformer standards and IP64, IP65 or fire-rated enclosure options. Confirm the selected equipment’s certifications, applicable efficiency requirements, enclosure test reports and complete-package acceptance requirements. |
Standards references and listings are shown by product. Request current manufacturer listing documentation, test reports and the applicable standard edition for the selected configuration. Enclosure and component ratings have their own evaluation scope.
03 / FROM SPECIFICATION TO SUPPLY
Review equipment scope, factory pricing and production availability in one conversation. We align design approvals, manufacturing and shipment with your installation milestones, so you can assess cost and schedule together.
Share your single-line diagram, ratings, quantity and site conditions. We align the configuration with your load, application and required standards.
Review the equipment scope, technical submittal and commercial terms with a direct path to our manufacturing partners.
Confirm factory availability, approval milestones and logistics. Establish a realistic delivery plan that supports your target energization date.
04 / MICROGRIDS & RESILIENCY
Coordinate the power. Protect the operation.
Coordinate utility power, onsite generation, battery storage and controls around critical loads and operating priorities. ISG aligns electrical equipment requirements with your engineering and controls partners.
Define the electrical boundary and the equipment interfaces together. The design determines how the resources operate as a system.

Transformers, switchgear, protection and distribution equipment establish the path from each power source to the site’s loads.
A microgrid controller coordinates local resources and operating modes. An energy management system (EMS) schedules resources around demand, cost and reserve priorities. A distributed energy resource management system (DERMS) can coordinate distributed assets with broader grid requirements.
Establish critical-load priorities, reserve duration, protection coordination and recovery sequences. Islanded operation requires a suitable system design, utility coordination and commissioning.
Size resources around the loads that must stay operational.
Coordinate generation, storage and controllable demand.
Align equipment and controls with phased site requirements.
Transfer behavior, operating duration and recovery targets depend on project engineering, available resources and commissioning. Confirm protection, controller interfaces and integration responsibilities in the project scope. Microgrid technical context: U.S. Department of Energy ↗
EFFICIENCY & LIFECYCLE PERFORMANCE
Better decisions begin with operating data.Compare equipment on tested losses under the conditions your site will actually see, and weigh operating cost alongside the purchase price.
Published transformer efficiency is measured under the DOE test procedure at a set load, with balanced, undistorted current. Request tested no-load and load losses and the efficiency standard that applies.
Data center and EV charging loads are often unbalanced and carry harmonics, which raise losses and heating. Request expected losses at your load profile and K-factor or harmonic-mitigating options.
Consider installation, projected loss energy, maintenance and end-of-life responsibilities. Confirm who provides the analysis and supports the installed equipment.
Efficiency and loss figures are confirmed in the quotation and test reports for the selected design. Request documented assumptions for any savings or emissions claim.
Discuss your performance requirements05 / POWER FOR YOUR APPLICATION
Start with the application.Data centers. Renewable energy. Fleet charging. Industrial operations. Source the core electrical equipment that connects available power to the work your site needs to do.
REPRESENTATIVE IMAGEEQUIPMENT FOR YOUR APPLICATION
Transformers and distribution equipment for new development, existing facilities and phased capacity expansion.
Discuss your application
REPRESENTATIVE IMAGEEQUIPMENT FOR YOUR APPLICATION
Electrical equipment for solar, battery storage and generation projects with site-specific interconnection and distribution requirements.
Discuss your application
REPRESENTATIVE IMAGEEQUIPMENT FOR YOUR APPLICATION
Match distribution equipment with charging loads, operating schedules and future fleet growth.
Discuss your application
REPRESENTATIVE IMAGEEQUIPMENT FOR YOUR APPLICATION
Distribution and control equipment for utilities, industrial facilities and the engineering teams supporting them.
Discuss your application06 / WARRANTY & OPERATING SUPPORT
Plan for the life of the equipment.Product warranty support, operations and maintenance packages and on-site field service are offered alongside equipment procurement. Define the coverage your site needs before the equipment enters service.
PRODUCT WARRANTY
Review manufacturer warranty terms, the coverage start, parts and labor, exclusions and the claim process with your quotation. Confirm the provider and responsibilities for the selected equipment.
Discuss warranty coverageOPERATIONS & MAINTENANCE
Ask about an O&M package aligned with the installed equipment, operating environment and site priorities. Establish the preventive maintenance scope, service intervals and support responsibilities in your proposal.
Discuss an O&M packageON-SITE FIELD SERVICE
Field service can include site supervision, radiator and bushing assembly, oil filtration and vacuum processing, OLTC commissioning, and coordination of factory witness testing, including remote testing.
Discuss field serviceWarranty, O&M and field service are offered for the selected equipment and project. Request the service provider, geographic coverage, maintenance duties and response commitments in the applicable agreement.
07 / INTELLIGENT SOLUTIONS GROUP INTERNATIONAL
Serving customers across the globe with factory-direct, advanced power equipment built around their specifications.
Intelligent Solutions Group International is built on honesty, integrity and prompt service. We listen to what your project needs, communicate clearly and connect you with manufacturing partners who can meet the specification.
Understand the need. Explore better configurations. Align power equipment with the way your site operates.
Reduce procurement and installation complexity through clear specifications, coordinated equipment and a practical delivery plan.
Connect customers with manufacturing partners across international markets, with one focused commercial relationship.
ISG INTERNATIONAL

★ United States ★ Canada ★ France ★ Germany ★ United Kingdom
WORLD MARKETS
Markets served: the United States, Canada, France, Germany and the United Kingdom. ISG coordinates equipment specifications, factory supply and delivery requirements for projects across these markets.
08 / PRODUCT DATA SHEETS
Details for your next project conversation.Specifications, features and standards for every product family, in a consistent format ready for your engineering and procurement teams.
View all product data sheets Download individual PDFs as a ZIPWe review your requirements with the supplying manufacturer. The final quotation and technical submittal establish the selected configuration, applicable certifications, scope, and delivery schedule.
GET A FACTORY-DIRECT QUOTE
Share the equipment type, quantity, required ratings and site-delivery date. Include your specifications, equipment schedules or drawings with your quotation request.
sales@isg-intl.comProduct inquiries, sourcing discussions,
and commercial partnerships.
Open the draft in your email app, attach your selected project files, then send it to sales@isg-intl.com.
It went to the ISG team, together with any project files you attached. You will receive a confirmation email in a few minutes, and we will follow up within one business day.