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Products See Overview

Dry Type Transformers

Cast resin, VPI and specialty transformers

Pad Mount Transformers

Single-phase and 3-phase liquid-filled transformers

Power Transformers

Medium voltage power distribution up to 600 MVA and primary voltage up to 500 kV (1800 kV BIL)

Medium Voltage Switchgear

Gas-insulated and air-insulated switchgear solutions

Outdoor Substation Breaker

Configurable substation circuit breaker technology

Medium Voltage Packaged Unit Substations

Modular prefabricated power distribution system

Services See Overview

Field Service

After-sales service and support

Industries See Overview

Power Generation

Optimizing efficiency while improving the safety and sustainability of energy production.

Power Transmission

Innovating solutions that power a safe, reliable grid.

Power Distribution

Ensuring more efficient, reliable, and safer power distribution systems.

Solar Distribution

Supporting the development of solar platforms to shape a more sustainable future.

Wind Energy

Innovating wind technology to promote a cleaner, greener planet.

Commercial Buildings & Infrastructure

Meeting the ever-changing needs of global commercial infrastructure.

Data Centers

Designing solutions that power digital infrastructure.

Industrial Facilities

Engineering advanced power solutions that meet the needs of modern factories.

Rail & Transportation Systems

Supporting the electrification of modern transport systems and infrastructure.

About Us See Overview

Our Locations

With manufacturing plants and offices across 3 continents, we are here when and where you need us.

JST Visitor's Guide

Visiting JST in Lake Mary, Florida? View and download our Visitor's Guide here.

Leadership Bios

Our exceptional team of executives, each a standout in their respective credentials, bringing together diverse expertise, visionary leadership, and innovative thinking.

Sustainability

Minimizing our impact and helping customers do the same.

Sustainability See Overview

2025 Environmental, Social & Governance (ESG) Report

News, Literature, & Events See Overview

News

Stay connected with us and see why we are leaders in the industry.

Product Literature

Check out our literature library.

Events

Join us at these upcoming industry events.

Products See Overview

Dry Type Transformers

Cast resin, VPI and specialty transformers

Pad Mount Transformers

Single-phase and 3-phase liquid-filled transformers

Power Transformers

Medium voltage power distribution up to 600 MVA and primary voltage up to 500 kV (1800 kV BIL)

Medium Voltage Switchgear

Gas-insulated and air-insulated switchgear solutions

Outdoor Substation Breaker

Configurable substation circuit breaker technology

Medium Voltage Packaged Unit Substations

Modular prefabricated power distribution system

Services See Overview

Field Service

After-sales service and support

Industries See Overview

Power Generation

Optimizing efficiency while improving the safety and sustainability of energy production.

Power Transmission

Innovating solutions that power a safe, reliable grid.

Power Distribution

Ensuring more efficient, reliable, and safer power distribution systems.

Solar Distribution

Supporting the development of solar platforms to shape a more sustainable future.

Wind Energy

Innovating wind technology to promote a cleaner, greener planet.

Commercial Buildings & Infrastructure

Meeting the ever-changing needs of global commercial infrastructure.

Data Centers

Designing solutions that power digital infrastructure.

Industrial Facilities

Engineering advanced power solutions that meet the needs of modern factories.

Rail & Transportation Systems

Supporting the electrification of modern transport systems and infrastructure.

About Us See Overview

Our Locations

With manufacturing plants and offices across 3 continents, we are here when and where you need us.

JST Visitor's Guide

Visiting JST in Lake Mary, Florida? View and download our Visitor's Guide here.

Leadership Bios

Our exceptional team of executives, each a standout in their respective credentials, bringing together diverse expertise, visionary leadership, and innovative thinking.

Sustainability

Minimizing our impact and helping customers do the same.

Sustainability See Overview

2025 Environmental, Social & Governance (ESG) Report

News, Literature, & Events See Overview

News

Stay connected with us and see why we are leaders in the industry.

Product Literature

Check out our literature library.

Events

Join us at these upcoming industry events.

News, Literature & Events

Advancing Innovation to Win Critical Data Center Business

Customer Success Story

Advancing Innovation to Win Critical Data Center Business

As part of our efforts to support one of the world’s largest technology companies, the JST team achieved a significant milestone in transformer testing and product validation.

To meet a key requirement for the customer, our team successfully performed a true Transient Voltage Resistance (TVR) test on our transformers. This capability was essential to meeting customer expectations and positioning JST to compete for this strategic business opportunity.

The achievement was the result of extensive collaboration across regions and functions. Leadership teams globally across JST worked together to develop an effective testing approach, combining technical expertise and strategic problem-solving to overcome a complex challenge. The initiative required an investment of approximately $100,000, demonstrating JST’s commitment to innovation and customer requirements.

“This project showcased what JST does best: bringing together global expertise, investing in innovation, and solving complex technical challenges to meet evolving customer needs,” said Jason Lambert, Vice President Sales. “The successful completion of Transient
Voltage Resistance testing strengthens our position in one of the fastest growing markets in the world.” 

The significance of this accomplishment extends well beyond a single project. Transient Voltage Resistance has become a major focus across the rapidly growing data center market. Leading hyperscale companies are increasingly requiring and discussing TVR performance for dry-type transformers as they continue to expand their infrastructure and demand higher levels of reliability and resilience. By proactively developing and validating this capability, JST has strengthened its position as a trusted partner in the critical data center sector and enhanced our ability to compete for future opportunities with some of the world’s most influential technology companies.

Key Impact:
• Successfully completed JST’s true Transient Voltage Resistance testing capability.
• Met a critical requirement for the customer.
• Demonstrated global collaboration across JST teams.
• Supported a strategic investment in advanced testing capabilities.
• Positioned JST for future opportunities with hyperscale data center customers.
• Reinforced JST’s commitment to innovation, reliability, and customer-focused solutions.

Download document here

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Lake Mary, FL 32746

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