MVS
We Offer a wide range of medium voltage switchgear options suitable for supporting customers in industrial, commercial, and utility installations involving generators, motors, feeder circuits, transmission, and distribution lines
Air-Insulated Switchgear – AIS
JST’s medium voltage air-insulated switchgear provides safe, reliable switching and fault protection. JST’s air-insulated switchgear is proudly manufactured in Lake Mary, FL.
JST Power Equipment type J100CLAD™ is an IEEE rated, non-arc-resistant, metal-clad switchgear product line with Type J3Mag™ vacuum circuit breakers.
Product ratings and highlights are listed below:
1
Features
Fully compliant to the latest standards (IEEE C37.20.2-2015 and ANSI C37.55-2020) for metal-clad switchgear construction
UL Label
Modular design and construction
Galvanized steel construction
Two-high construction
Top and bottom cable or bus duct entry
ISO 9001 certified manufacturing facilities
PT/Fuse compartment closed door racking
Closed-door racking
Front accessible circuit breaker operating mechanism for ease of maintenance
Outdoor non-walk-in (ODNWI)
2
Advantages
Built in Racking Mechanism
Built into cubicle vs on truck (lighter weight breaker)
Allows for easy addition of electric racking solution
Easier replacement or movement of breakers
TOC Switch Aux Contacts
8/16 pole contacts
Positive Pole indication
Tilt out CPT/PT Compartment (with closed or racking)
3
Benefits
Single phase operation
Magnetically actuated breaker
Independent pole actuators
Longer life, lower operation costs
Safer design, easier access for service
(9)a (9)b Auxiliary Contacts
Having few moving parts eliminates lubrication requirements
Direct drive of push rods eliminates torque in breaker
Fully compliant to IEEE C37.04-2018 and IEEE C37.09-2018
Fast reclose duty qualified
Consistent operating time over life of unit
Chain driven mechanism
Improve SAIFI/SAIDI scores
4
Value Basis
Longer life/higher reliability
Removes failure points from truck assembly
Upgrades are easy to retrofit
Higher up times for your customers
System design flexibility
Safer & easier inspection leads to lower maintenance costs and improved personnel safety
AIS
J3Mag™ Breaker
The J3MAG™ offers several advanced features, including single-phase operation and independent pole actuators, and its limited moving parts reduce overall maintenance costs to a bare minimum and improve system reliability.
1
Features & Benefits
Single phase operation
Magnetically actuated breaker
Independent pole actuators
Having few moving parts eliminates lubrication requirements
Direct drive of push rods eliminates torque in breaker
Fully compliant to C37.04-2018 and C37.09-2018
Fast reclose duty qualified
Consistent operating time over life of unit
Chain driven racking mechanism
Standard five-year warranty
Improve SAIFI/SAIDI scores
Longer life, lower operation costs
Safer design, easier access for service
2
Product Applications
Suitable for both Indoor and outdoor applications:
ODNWI
PDC construction
Distribution line
Main – tie – main systems
Main – main systems
Switching and protection for:
Generators
Feeder circuits
Cap banks
Transformers
Motors
Resistive loads
Why Choose Us
Premier Customer Service
We take pride in our ability to provide service & support resulting in the high level of satisfaction that our customers deserve.
Detailed Engineering & Technical Support
As the industry continues to grow and mature, so do we; shaping the industry and keeping the promise of a bright future.
Short Lead Times
With lead times after drawing approval ranging from 16 to 24 weeks, we are efficient, reliable and competent of executing our timeframes.
Fast Response
Getting a quote or booking a service call, can routinely be completed within 24 hours of receiving an initial request.
Flexible Outdoor Solutions
As the need for clean, safe, and reliable outdoor solutions becomes more prevalent in municipal infrastructure throughout the world, our products find their home in such applications.
Dedicated Project Managers
As a customer’s partner and first point of contact our project managers are focused on discovering and discussing our customer’s requirements & expectations.
Meet The Expert
Rebeca C.
Senior Marketing Engineer Switchgear
“We offer expert and end-to-end support from the moment we receive your request until your switchgear is delivered.”
GIS
Gas Insulated Switchgear – GIS
JST’s Medium voltage gas-insulated switchgear offering consists of fixed-mounted vacuum circuit breakers that are connected to the main bus through three-position switches.
JST’s air insulated switchgear a new generation of miniaturization gas insulated medium voltage switchgear for distribution applications that utilizes advanced technologies of laser, sensing, composite insulation and electric field optimization, informatized and intelligent production and control methods to ensure product’s quality and reliability.
JST’s medium voltage gas-insulated switchgear is tested according to the following standards:
IEC 62271-200, IEC 62271-103, IEC 62271-105, IEC 62271-102, IEC 62271-100, IEC 480, GB11023, GB12022 and GB11033
- C-GIS
- Ring Main Unit (SF6)
- Ring Main Unit (Nitrogen)
- Ring Main Unit (Solid-Insulated)
- Ring Main Unit (Semi-Insulating)
A robust medium voltage solution utilizing SG6 gas as an insulating medium. C-GIS is offered in a wide range of ratings designed for use in primary distribution applications. We offer a variety of panel configurations at the following ratings:
- 5kV / 1,250-2,500A / 31.5kA
- 12-24kV / 1,250-2,500A / 25-31.5kA
Ring Main Unit is a medium voltage solution utilizing SF6 gas as an insulating medium. RMU is offered in a range of ratings designed for use on secondary distribution applications. We offer a variety of panel configurations to suit all the required needs at the following ratings:
- 5kV / 630A / 25kA
- 12-24kV / 630-1,250A / 20-25kA
An eco-friendly ring main unit used on medium voltage applications utilizing N2 gas as an insulating medium. For use in lighter duty secondary distribution applications, we offer a variety of panel designs at the standard ratings:
- 12kV / 630A / 20kA
For use on medium voltage applications utilizing an epoxy resin composite as an insulating medium. For use on secondary distribution applications, we offer a variety of panel designs at the standard ratings:
- 12kV / 630A / 25kA
Medium voltage applications using SF6 gas and Air as an insulating medium. For use on lighter duty secondary distribution applications, we offer a variety of panel designs at the standard ratings:
- 12kV / 630A / 20kA
Headquarters –
Lake Mary Office
30 Skyline Drive,
Lake Mary, FL 32746
Contact Us
- Phone Numbers
- +1 407-632-4050
- 844-631-9046 (Toll Free)
- Fax Number
- +1 407-982-1153
Get Connected
