Power Back

Overview

Temporary Power Restoration Device
Auto Transformer restores a missing hot leg (or neutral) in either 120/240V or 120/208V 3-wire services.

15kva and 20kva PowerBacks now shipping in Stainless Steel NEMA4 enclosures with on-board Voltage Indicators for both 120v legs

Why Utility Companies use the PowerBack

  • Ultra-compact Power Restoration Device.
  • Provides same day temporary power restoration.
  • Saves time and money. Now you can quickly restore power and schedule permanent repairs at a later date instead of having to make repairs immediately.
  • Designed for both overhead 120/240V and underground 120/240V 3-Wire systems.
  • Stainless Steel Wheeled-Cart is Easy to Move. One person can transport the PowerBack to the job site. No crew or special truck is needed to transport the PowerBack.
  • Lightweight – Just half the weight of competitor products (see weights below)
  • No need to bridge or run shunts for residential customers who have lost one phase or the neutral to their home.
  • Improves public safety by avoiding the need to run temporary cables between customers when a phase is lost.
  • Increases customer satisfaction with faster service restoration.
  • Thermal Protected High Efficiency Toroidal Transformer- Located near the primary windings of the transformer is a 105C thermal protector switch wired directly to the Shunt-Trip solenoid in the Circuit breaker. Should the transformer over-heat due to overload or short-circuit, the circuit breaker will trip and shut the unit down.

How it works

The PowerBack provides a quick, convenient source of 240 volt power up to *20,000 VA from one phase and a good neutral or 120v service from two good phases (restoring neutral).

The PowerBack Restores Power to both homes and businesses.

PowerBack 15KVA: Recommended for 150A service

PowerBack 20KVA: Recommended for 200A service

  • 22″W x 13”D x 29”H—15 Kva =115lbs ; 20Kva = 130lbs
  • High Efficiency Toroidal Autotransformer
  •  10ft service cable (4/4AWG)  w/ Metering Adapter
  • 15Kva = 125A Circuit Breaker—63A Rating Continuous Load per Hot Leg
  • 20Kva = 160A Circuit Breaker – 85A Rating Continuous Load per Hot Leg
  •  Dual Thermal Sensor (105C) protects transformer against excessive overload
  • NEMA 4  All-Weather STAINLESS STEEL enclosure w/ lockable door system, and welded lifting eye
  • Universal Metering socket fits both Ringed and Ring-less applications
  • 10″ x 3″ Foam-Filled Flat Free tires, roller bearing hubs , stainless steel axle
  • Quick reference Installation instructions inside of front door 

Download Printable PowerBack 15Kva & 20Kva Specification / Feature Sheet

PowerBack 30KVA

Recommended for 320A service

  • 28″W x 22”D x 46”H—220lbs
  • 30Kva High Efficiency Toroidal Autotransformer
  •  10ft service cable (4/2AWG)  w/ Heavy Duty (2 part) CL320A-rated Metering Adapter for Lever By Pass Sockets
  • 250A Circuit Breaker—125A Rating Continuous Load per Hot Leg
  •  Dual Thermal Sensor (105C) protects transformer against excessive overload
  • NEMA 4  All-Weather STEEL enclosure w/ lockable double-door system, and welded lifting eye
  • 13” x 3.5” Foam-Filled Flat Free tires, roller bearing hubs , stainless steel axle
  • Quick reference Installation instructions inside of front door

 Download Printable PowerBack 30Kva Specification / Feature Sheet

PowerBack 50KVA

Multi-home restoration

    •  Dimensions 35”W x 20”D x 46”H—290lbs
    • 50Kva High Efficiency Toroidal Autotransformer
    • 2x 120V Hot Leads = 1AWG x 10ft Long
    • 1 Neutral Lead = 3/0AWG x 10ft long
    • Optional – 5ft. Long Quick-Lock disconnects w/ 1 hole Flood-Seal Connectors
    • 400A Circuit Breaker—208A Rating Continuous Load per Hot Leg
    • Thermal Sensor (105C) protects transformer against excessive overload
    • NEMA 4  All-Weather enclosure w/ lockable double-door system, and welded lifting eye
    • 13” x 3.5” Foam-Filled Flat Free tires, roller bearing hubs, stainless steel axle
    • Quick reference Installation instructions inside of front door

  • The largest transportable Autotransformer available in the industry
  • Restore 120/240V to MULTIPLE customers in minutes…. Not Hours.
  • Application: Failed underground secondary cable to Apt. houses, Condos and failed cable between Pad-mount Transformers and Secondary pedestal/hand-hole
  • When 1 of 3 cables fail, The PowerBack temporarily restores 120/240V down stream of the failed and isolated cable.
  • The fastest method in the industry to restore power for failed underground cables.
  • Eliminate unsafe practice of installing temp. cables.
  • Improve Line Department efficiencies
  • Reduce overtime budgets
  • Return on Investment – 3 to 5 trips to the field

 

Download Printable PowerBack 50Kva Specification / Feature Sheet

Customer List:

Xcel Energy – (Denver, CO, St.Paul Minn)
Delmarva Power & Light CO – (Delaware, Maryland, Virginia)
PSE&G (Long Island NY)
AEP (Oklahoma, Ohio, Michigan, Indiana)
PECO (Pennsylvania, Maryland)
First Energy (Ohio, West Virgina, Pennsylvania, Maryland, Virginia, New Jersey)
Commonwealth Edison  (Illinois)
Dominion Power (Virginia)
Eversource (New Hampshire)
Puget Sound Energy (Washington)
PEPCO (Maryland)
PPL Electric (Pennsylvania)
Indianapolis Power & Light
New York State Electric & Gas Corporation
Con Edison of NY
Northwestern Wisconsin Electric Company (Wisconsin)
Northwest Rural Electric Cooperative Asso  (Pennsylvania)

Reach Us

Contact Us for Information and Sales

6 Waterview Drive, Shelton, CT 06484

(203) 954-0050

(800) 836-5920

Fax: (203) 954-0051

sales@bridgeportmagnetics.com

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