Resistors

Protect the environment by increasing energy efficiency

DESCRIPTION

BACKER: RESISTORS

Backer supplies a wide range of resistors used in many diffrent applications, helping to protect the environment by increasing energy efficiency. Wind turbines, industrial drive systems, public transport systems, marine propulsion, and nuclear research institutes – all need resistors to increase the efficiency of their systems. We use thermal simulation software to optimize and customize our solutions to perfectly align customer requirements with customers and specific applications.

BACKER: RESISTORS

At the Backer Group, we can offer a wide range of technologies for the production of resistors. An advantage with resistors from Backer is that they can withstand high loads, since we use large diameter resistance wires that provide low resistance. The option of using water/liquid as cooling media enables high power resistance. We also have large element diameters, for higher voltages.

All resistors are custom made, but our standard concept speeds the development process. The elements are fully tested for insulation and dielectric rigidity. Moreover, the elements are often built into protective cages to prevent contact with heated parts. Computerized load simulation is also performed to optimize each resistor application.

Terminal boxesexternal link with different IP classes can be used. Numerous elements are often connected together, in series and/or parallel, to achieve the intended properties.

PRODUCT EXAMPLES:

  • Brake resistors
  • Power resistors
  • Load resistors
  • Shunt resistors
  • Water-/liquid cooled resistors

APPLICATIONS

  • BACKER:
  • Trains
  • Hybrid vehicles
  • Wind power turbines
  • Ships
  • Cranes
  • Trams
  • Frequency converters
  • Sine-wave filter resistors

Technical data

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Material

Steel - Grade D
Stainless steel - EN 1.4301, EN 1.4404, UNS S31254, UNS N08904, Incoloy 800, Incoloy 825
Aluminum AA6060, AA6063

Types of cooling

Air: convection or forced convection
Liquid: water, oil etc.

Dimensions

Tubular elements: Ø 8.5, 14, 21 mm
zinc-aluminum alloy section I- or X- shaped, with or without cooling fins

Attachment of elements

Flanges: welded or brazed
Nipples: pressed or brazed

Connection

Wiring
Threaded pins M4/M6

OTHER RESISTORS - A WIDE PRODUCT RANGE

The Backer Group, specializes in electrical resistors and brake resistors. We are known worldwide for our high quality design and resistor production for electro, mechanic-, wind power and telecom for example.

Among our products:

  • Resistors in aluminum housings
  • Ceramic wire-wound resistors
  • Open wire-wound resistors
  • Rheostats
  • Steel grid resistors

Product examples