Presents
A Safer and More Reliable
Distribution System

Key Points About Trayer
• The Pioneer in design and manufacturing of maintenance free vacuum switchgear for electrical distribution systems
• The most recognized brand in regards to “Storm Hardened”
HERMETICALY SEALED switchgear
• Specializing in ultra rugged and reliable Padmount, Vaultmount and Submersible gear with an average lifespan of 30+ years
• Owner of multiple industry first patents
• Class leading product safety with an unparalleled safety record
• 50 plus years of experience with the ability to customize for any customer requirements Years of Company Innovation
• Class leading warranty and unequaled customer service

Product Overview

The Foresight
Trayer recognized
43 years ago the benefits of vacuum interruption.

Vacuum Loadbreak Contact Open

Vacuum Loadbreak Contact Closed

Vacuum Fault Interrupter Contact

Vacuum Circuit Protection – Vacuum Fault
Interruptor (VFI)
• Through 25kV and up to 600 Amps
• 12.5kA Interrupting Capacity
• 65 Interruptions at Full Fault Capacity
• Available as Single or 3-Phase

Trayer Vacuum Switching:
Over 30 Years of Innovation
• Insulation options include:
–
Liquid (10,000 operations)
–
SF6 (3,000 operations)
–
Solid Dielectric COMING SOON (several thousand operations)
• Load Switching Through 35kV
–
At 15.5kV can be Delta or Grounded Wye
–
Over 15.5kV Ground Wye Only

Voltage Switching and
Circuit Protecting Equipment
• Padmount
• Vaultmount
• Submersible

• Available in single or doublesided designs
• Customizable footprint for retrofit/replacement projects
• Hermetically sealed tank avoids environmental damage

Single Side Access Padmount with SCADA

Automatic Transfer Switch Capabilities
• 10 Second or 10 Cycle
Automatic Transfer
• Local and Remote Operation
SCADA Controls
• High Accuracy CT’S and PT’S
For Sensing and Accurate
Calculations
• Smartgrid, Microgrid, and
Some Substation integration

Secondary Network - tied secondary's
Primary Network – tied Primary feeds
Primary Spot Network
Primary Closed Loop Network

•
Uninterruptible power in a closed loop design providing the most reliable service to the customer.
•
Custom designed equipment matching original size and cable position for easy installation.
• Custom designed and balanced CTs for
“drop in” placement.
•
New technology instantly identifying tripped line sections.

Source 1
ATS
Control
Source 2

Source 1
Voltage Restored
Fault
Fault
Occurs
X
PNP
Control
Source 2

PECO/Exelon - Primary Closed Loop
UNC, Chapel Hill – Primary Closed Loop
NASA – Kennedy Space Center, FL
NASA – Stennis Space Center, MS
Tropicana Field Tampa – Spot Network
Duke Energy – Spot Network

Improved Power quality
Reduced Voltage Flicker
Reduced Voltage Sag
Uninterruptible Primary Power

• Customizable design, can replace existing equipment footprint
• Multiple stand options available
• Available with submersible or pedestal type padmounted control cabinets with provisions for submersible connections

• Fully Welded and Hermetically
Sealed Tank
• Local and Remote Operation
SCADA Controls can be added
• Round or Square/Rectangular tank options to fit any underground application
• Optional Visible Breaks

Trayer Vacuum Switchgear Ratings

• 27kV – 600 Amp – 12.5 kA, single
phase Oil Fused Cut-out replacement
design, now 40% smaller than previous
models.
• CT powered submersible over-current
relay, 304 stainless steel construction.
• Includes Trayer’s “truly visible” single
phase visible disconnect device.
• Up to 65 interruptions at full fault capacity
• Available in 3 phase or single phase
• A variety of mounting options are available.

System Automation
• Relay and over current program customization
• Built for your exacting needs
• Versatile design allows customer preferred RTU of choice for SCADA applications

Trayer Submersible Relay Control Cabinet with local / remote fiber optic communication.
Bolted cover
Draw out relay
Local fiber connection
V
Double
Bulkhead compartment
Voltage selector

Linear Actuators

Submersible Motopak
• First installed and still operating since 1971.
• 304 stainless steel construction.
• Gear driven 120 or 230 volt AC or
24 volt DC motor.
• Adaptable to all SCADA systems.
• Hot stick quick release for line crew safety.
• Field installable with the addition of a stand.
• No Maintenance required.

Single Side Access Padmount with SCADA

Why Are More Customers Choosing Trayer?
• Unparalleled Safety Record
• Product Safety Features (liquid level gauges, VFI trip indicators, rope/cable operation, remote operation via linear actuator, etc…)
• Technology (vacuum bottles, custom control and automation options, submersible motopaks and linear actuators)
• Superior Materials and Craftsmanship (304/304L stainless steel, hermetically sealed and hand polished welds)
• Proven Storm Hardened Capabilities
• 30+ Year Gear Life
• Customization Expertise and over 50 Years of Company Innovation
• Class Leading Warranty

Leading the Way to a
Safer and More Reliable
Smart Grid