Whether it is carrying the high current necessary to power heavy equipment, rail and subway cars, or reducing weight and enhancing packaging efficiency for the latest aircraft and hybrid vehicles, Eldre laminated bus bars bring unique advantages to the transportation industry that are not available with traditional wiring or single conductor bars.
The electrical performance of an Eldre- engineered laminated bus bar is a key component to success throughout the transportation industry. A properly engineered laminated bus bar provides the lowest overall system inductance and the most balance and distributed capacitance. Eldre laminated bus bars help transportation equipment manufacturers achieve their reliability goals, thus lowering warranty costs and enhancing customer satisfaction.
The laminated bus bar shown here represents a single-phase leg for a large three-phase inverter powering modern AC locomotives. Long term durability and continuous operation in hostile environments demand high quality and consistency. The laminated bus bar has mold-sealed edges and fully insulated mounting holes, built and tested to meet customer partial discharge requirements.
Size: 10” x 14” x 30” | Conductors: .030” | Voltage: 1200VDC | Current: 1000A
Size is never a problem for Eldre! Modern Traction Inverters are large and so are their components. This three layer, laminated bus bar design delivers low inductance while optimizing the DC capacitor arrangement. Note the use of embossments & soldered bushing “vias” for interconnections.
High Speed Traction Drive
Size: 10” x 14” x 30” | Conductors: .0340” | Voltage: 1200VDC | Current: 1000A
When power has to be routed through tight confines that twist and turn, Eldre’s epoxy powder coating provides 100% dielectric protection. This two-conductor laminated assembly includes bonded ceramic chokes, nylon reinforced mounting holes, and floating clinch hardware for easy installation and optimized electrical performance in an automotive environment.
Electric Vehicle Power Distribution
Size: 4” x 9” | Conductors: .125” | Voltage: 150VDC | Current: 100A
Individually laminated, this two-conductor bus bar connects electrolytic capacitors and IGBTs in a small, lightweight package for an EV Inverter.
Electric Vehicle Power Electronics
Size: 3” x 6” | Conductors: .020” | Voltage: 150VDC | Current: 60A
High horsepower traction drives benefit from the low inductance power path made possible by Eldre laminated bus bars. Laminated bus bars are the essential component that ties IGBTs and capacitors together. By minimizing system inductance, transient over-shoots are reduced which greatly simplifies the need for complex snubber circuitry. Laminated bus bar designs for motor drives can contain a number of modular bus bars, linked together, to connect all of the system components into one complete system.
Locomotive Traction Drive
Size: 8” x 11” | Conductors: .06”, .09”, .188” | Voltage: 600VDC | Current: 650A