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2 May 2011

Current Product Developments at HEINE

The clocks never stand still at HEINE. All the time its dedicated employees from the development department work meticulously on new products, concepts, improvements and enhancements. And thanks to the perfect blend of years of experience and young innovative engineers, it has some new developments that it wants to share with you.

In March of this year HEINE received a new contract to supply brake resistors for the new high-speed train Velaro Eurostar. This train will drive with a maximum speed of 350km/h from London across Cologne to Frankfurt on the Main. Every train needs up to eight brake resistors with a continuous braking power of 500kW. Every resistor is cooled down by a fan, which is an enormous challenge in this high travel speeds in terms of pressure loss and airflow. In order to integrate the resistors well into the aerodynamic design of the roof of the train, they will be covered at the side. The use of braking systems for railway locomotives takes the security of passengers in the highest significance. The protection device for temperature monitoring and self-diagnosis (STS) of the HEINE Resistors makes an important contribution. This protective equipment is used in this project.

For another project a resistor is going to be developed, which will be incorporated in an electromechanical contactor as a precharging resistor. For this purpose HEINE’s construction engineers use a compact resistor out of the field of the drive engineering. Requirements of the railway, such as high pulse bearing capacity, high electric strength up to 4kV and longevity are significant criteria, which the resistor has to meet.

No longer in the development but already in the testing phase is its crowbar resistor BWD 151. This resistor is currently put to the acid test. It was built for the CRH3-400, the electrical high-speed train in China. Because of the special Chinese environmental influence to which it had to be adjusted, it has very long isolating distances. In terms of construction it was designed so that it can resist the high air speeds and is adapted to the shape of the train.

Also already in operation is HEINE’s brake resistor BWD 153. This resistor has been developed especially for the trolley buses in Riad. He is characterised in particular by its rated continuous load of 100kW, a nominal resistance value of 1.06 ohms and a triple insulation. Because this is a roof resistor, no further fan is needed for the cooling down.

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