Transformer, Switchgear and Electrical Power Solutions

JST Transformer, Switchgear and Electrical Power Solutions

DRY TYPE TRANSFORMERS

Red three-phase dry-type transformer with blue base and electrical hazard symbols.

Cast Resin Transformers

Monolithic UPS capable up to 1.6 MW - specifically designed for critical high-density computing environments across private and public enterprise, as well as data centers for colocation, hybrid, hyperscale and neocloud data centers.
Industrial electrical transformer with coils and components for power regulation.

VPI Transformers

Voltage level up to 25 kV (110 kV BIL)
Ratings up to 14.5 MVA
NEMA enclosure options
Low voltage designs

Specialty Transformers

Reactors
Submersible network transformers
Up to 54 pulse transformers
Phase shifting
Zig zag/grounding transformers

PAD MOUNT TRANSFORMERS

Green JST power equipment enclosure with safety labels, featuring a NON PCB designation, marked with number 50.

Single-phase Liquid-filled Pad Mounted Transformers

Voltage level up to 34.5 kV
Power range up to 167 kVA
ANSI/IEEE and NEMA standards
UL Listed

Electric panel with switches and fuses in an open green metal cabinet, showcasing electrical components and wiring.

Three-phase Liquid-filled Pad Mounted Transformers

Voltage level up to 34.5 kV
Power range up to 5000 kVA
ANSI/IEEE and NEMA standards
UL Listed

SWITCHGEAR

Metal electrical control panel with open compartment, showing internal components and interface controls.

Air-insulated Switchgear

Up to 15 kV, 3000 A, 50 KAIC
Utilizes J3MAG breaker
Indoor and outdoor options available

Electrical switchgear unit with orange control panels, meters, and safety warnings.

Gas-insulated Switchgear

Up to 38 kV, 3000 A, 40 kA
Up to 69 kV, 1200 A, 31.5 kA
Indoor and outdoor options available

SMALL POWER TRANSFORMERS

Large industrial power transformer with cooling radiators and circuit detail in a white background.

Small Power Transformers

Power ratings 5 MVA – 100 MVA (max with fans)
Primary voltage up to 161 kV (650 kV BIL)
Dielectric coolant – mineral oil/ natural ester/synthetic
Maximum manufacturing weight 100 tons
Built to IEEE, IEC, GB/T and ANSI standards

OUTDOOR SUBSTATION BREAKERS

Industrial circuit breaker cabinet with exposed components and open door, showcasing red and silver electrical parts.

OD3MAG Outdoor Breakers

Up to 15 kV, 2000 A, 31.5 KAIC
Magnetically actuated breaker
Single-phase capability with independent pole actuators
No maintenance requirements

UNIT SUBSTATIONS

Blue electrical transformer unit with safety warnings and JET branding on a white background.

Medium Voltage Unit Substations

Packaged solution includes:
Switchgear, disconnect switch
Cast resin or oil-filled transformer up to 5 MVA
Inverter, used for BESS and solar applications
Skid-style construction and containerized solutions

ENERGY STORAGE

High-voltage energy storage container by JST Power Equipment for efficient battery storage solutions.

Battery Energy Storage Systems (BESS)

Voltage ratings 5 kV – 38 kV
Maximum stand-alone capacity 2 MWh – 5 MWh
UL, IEEE and IEC rated
Customizable for any Grid-Scale or C&I application

Let's Build Your Uninterruptible Power Strategy.

Your facility's reliability is too critical to leave to chance. From initial design consultation to ongoing maintenance and emergency support, the SPS Sales team is your comprehensive local resource for all things related to critical power. Let us put our decades of experience in the Houston market to work for you.
Contact our Houston-based experts today to analyze your needs, audit your current infrastructure, or design a new system that guarantees performance and peace of mind.

Call Our Experts Directly: 281.443.2080

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