For what types of railways are NORTHBRIDGES's bus bar suitable?

NORTHBRIDGES's railway bus bar is designed to cater to a diverse range of railway systems, from high-speed trains to urban transit systems. Each type of railway has unique requirements, and NORTHBRIDGES' solutions are tailored to meet these specific needs.

Laminated bus bar and powder coated bus bar for Urban Transit Systems

Urban transit systems, such as metros and trams, need durable and efficient bus bars for their power distribution as well as traction converter. NORTHBRIDGES's bus bars are engineered to deliver optimal electrical conductivity and minimal inductance, ensuring smooth operation and longevity in the demanding urban transit environment. Bus bars are designed to perform consistently in frequent start-stop conditions typical of urban transit systems.

Why choose bus bars for your Traction converter and Power supply system application?

Being installed at the bottom of the train, traction converter is key components of EMU, locomotive as well as urban rail vehicles. The main function of the traction converter is to convert the 1500V DC power from the Overhead Lines into 0~1150V three-phase AC power, then control the start, brake and speed adjustment of the AC traction motor through voltage regulation and frequency regulation. 

The internal electrical connection of a typical traction converter power circuit adopts a triple-layers composite structure design, which is realized by mutual overlapping horizontal laminated bus bar, vertical laminated bus bar, and connecting laminated bus bar. 

The design for Insulation Coordination between bus bars considers both electrical clearance and creepage distance mainly. Electrical stresses and environmental conditions must be taken into consideration while sizing insulation of laminated bus bar. 

In addition, oversizing insulation design is unaccepted. In the meantime, insulation should be robust enough against being broken under severest working conditions.

Why choose NORTHBRIDGES bus bars for your Traction converter and Power supply system application?

Bus bar leading manufacturers

The working conditions of Rail and Transportation are hush. The environmental conditions such as Shock & Vibration, Ambient Temperature, Humidity, Altitude etc. demand Laminated bus bars to be highly durable. The vehicles must always operate safely and reliably.

Our engineers have extensive knowledge and experience on LBB design for Rail and transportation applications. The quality of our design and manufacturing is ensured and compliant to IRIS (International Railway Industry Standard) quality system. 

An example of our LBB solution for traction converter. The rated working voltage is 2800 V. This design effectively solved the difficulty of limited module space and weight requirements, while meeting the electrical specifications.

Another example of our LBB design for traction converter. Our Engineers used the combination of NORTHBRIDGES's edge-closed LBB and powder-painted LBB solutions. It is a compact design which effectively saved space while enhanced the electrical performance.

A typical use of NORTHBRIDGES powder painted bus bar in traction converters. The bus bar's coating thickness is 2 mm. It can withstand working voltage 9,600 V.

Choosing NORTHBRIDGES bus bars for your traction converter and power supplying system

As demand for electricity accelerates across EV infrastructure, renewable energy and industries, robust and scalable power distribution systems become even more essential. NORTHBRIDGES’s proven bus bar solutions are engineered to ensure safety, reliability and efficiency in the expansion of modern power distribution networks.