Submersible Switchgear

Submersible Switchgear

ENERGIZING CLIENTS SINCE 1991

Trayer Switchgear

Submersible Switchgear

Trayer submersible switchgear, built to fit through manhole openings, available in both round and rectangular designs, has been the standard for many utilities since 1970.

Liquid Insulated Round Submersible Vacuum Switches

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PRODUCT MANUALS & DOWNLOADS

PRODUCT VERSIONS

Oil Fused Cut-out Replacement VFI

Oil Fused Cut-out Replacement VFI

  • 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.
  • A variety of mounting options are available.
Liquid Insulated Round Submersible Vacuum Switches

Liquid Insulated Round Submersible Vacuum Switches

  • 600 Amp rated vacuum loadbreak for 15, 25 and 35kV applications.
  • 10,000 mechanical operations in liquid dielectric and 3,000 operations in SF6
  • Available in a two, three, or four way round switch designs.
  • 600 Amp bushings or 200 Amp bushing wells.
Submersible Switchgear with Patented “visible OPEN”

Submersible Switchgear with Patented “visible OPEN”

  • Features Trayer’s patented Tri-Phase Visible Disconnect in a 3 way round design.
  • Submersible window covers keep visible disconnect view free from dirt and debris.
  • Visible disconnects in the OPEN position provide a safe working isolation point for testing and grounding of 600 Amp cables without removing them from the bushings.
4-Way Round Switch with Visible Disconnects and Current Limiting Fuse Protection

4-Way Round Switch with Visible Disconnects and Current Limiting Fuse Protection

  • Low cost, proven reliable protection for underground circuits.
  • 15kV, 25kV, and 35 kV solutions.
  • Current limiting fuses available up to 200 amps at 15kV.
Submersible SF6 Insulated Round Switch Design with VFI Protection

Submersible SF6 Insulated Round Switch Design with VFI Protection

  • 15kV and 25kV Vacuum Fault Interrupters built for underground protection applications.
  • 34-½ inch round design in 304 stainless steel provides a compact 3 way solution.
  • CTs for over-current protection and one PT for control power are internally mounted.
  • Submersible or Vaunt style relay control cabinets are available.
Submersible 4000 Series 3 phase Ganged VFI Mechanisms

Submersible 4000 Series 3 phase Ganged VFI Mechanisms

  • 15kV and 25kV compact Vacuum Fault Interrupter protected switchgear.
  • CT powered relay offers single or three phase trip selection.
  • 34-½ inch compact design able to pass through 36 inch manholes.
  • Above design shown with optional rope operator provisions and circuit tag holders
Rectangular Submersible Switch with Current Limiting Fuse Protection

Rectangular Submersible Switch with Current Limiting Fuse Protection

  • 15kV, 25kV, and 35kV submersible switch and fuse switchgear designs.
  • Submersible “9” configuration: two switched and two fuse protected ways.
  • Other configurations are available.
  • Above design shown with optional Tri-Phase Visible Disconnect and viewing window cover.
  • Full range current limiting fuses are available up to 200 Amps at 15kV.
Square Submersible Switch with Current Limiting Fuse Protection

Square Submersible Switch with Current Limiting Fuse Protection

  • 15kV, 25kV, and 35kV submersible switch and fuse switchgear designs.
  • Submersible “9” configuration: two switched and two fuse protected ways.
  • Other configurations are available.
  • Above design shown with optional Tri-Phase Visible Disconnect and viewing window cover.
  • Full range current limiting fuses are available up to 200 Amps at 15kV.
Submersible Switch with 600 amp CT powered 4000 Series VFI Protection

Submersible Switch with 600 amp CT powered 4000 Series VFI Protection

  • 15kV and 25kV 4000 Series Vacuum Fault Interrupters.
  • Sealed tanks and resettable VFIs eliminate the need to ever replace a fuse.
  • Submersible rated, CT powered, over-current relays come installed with 24 of the most commonly used fuse and relay curves programmed into the relay.
  • Submersible rated cables and an internally mounted shorting board circuit, allows relays to be removed while energized.
Submersible Switch with 600 amp 3000 Series three phase VFI Protection

Submersible Switch with 600 amp 3000 Series three phase VFI Protection

  • 15kV and 25kV 3000 Series Vacuum Fault Interrupter.
  • 3 phase mechanisms allow for compact designs to fit in underground vaults and manholes.
  • Trayer built submersible control cabinets house SEL over-current relays for improved coordination.
  • Fiber optic communication cable supplied for local download and settings changes.
Rectangular Submersible Switchgear with Patented Visible Disconnect Technology

Rectangular Submersible Switchgear with Patented Visible Disconnect Technology

  • Trayer’s modular designs permits many variations of switch and VFI arrangements.
  • Optional Tri-phase Visible Disconnect Switches provide a safe working isolation point in the Open position.
  • Visible Disconnect Switches add life to your equipment by reducing termination failures caused by removing T-bodies to get a safe isolation point.
  • Rectangular submersible designs are available with up to 6 ways.
Insulated Submersible 3000 Series VFIs with Visible Disconnect and Ground Switch

Insulated Submersible 3000 Series VFIs with Visible Disconnect and Ground Switch

  • Trayer offers an internal Ground position option on the Tri-phase Visible Disconnect Switch.
  • An internal grounding switch provides a safe alternative to removing cables underground.
  • Large viewing windows permits viewing of all three contacts in the Closed, Open, and Ground position.
  • Available in liquid and SF6 filled equipment.

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