Brake resistors - Import export

A drive motor can also act as a generator. If the drive system is built so as to allow reverse power to flow then this power can be fed into a resistor, thus taking energy out of the system and causing whatever is driving the motor to slow down. Following to this the braking resistor converts the stop energy into heat. Electrical drive systems are being used more and more on ships, oil rigs, crane barges and offshore vessels of all types. An important benefit from using an electric drive is that reliable systems of regenerative and dynamic braking resistors are available to complement or replace traditional mechanical braking systems. The advantages of electric braking include control, reliability, mechanical simplicity, weight saving and in some cases the opportunity to make use of the regenerated braking energy. The Braking Resistor Units from Klöpper Therm are designed according to specific applications.

CSN® Braking Resistors are used for controlled braking of every kind of electrical drives. Braking resistors convert the energy of drives into thermal energy which will be dissipated into the corresponding cooling medium. Design variations with natural or forced air cooling are available. CSN® Braking Resistors can be delivered with an indirect water cooling system using an airwater heat exchanger as well. The design of the CSN® Braking Resistors is particularly suitable for use in maritime applications. Schniewindt, as global market leader in this resistor sector, has a wealth of experience in the design according to the technical guidelines and rules of international classification societies for example

"The demand for speed control has taken off with the advent of IGBTs and powerful microprocessors. Today, there is no longer any difference between DC and AC. 99% of new installations will be equipped with variable speed AC solutions. In our product range, we have both DC and static frequency inverters. Characteristics of a static frequency inverter: OPEN LOOP CONTROL - Single and three-phase power supply between 200 and 480V - Digital inverter - Solution only in 1 or 2Q - Possible braking via chopper and resistor - Power between 0,37kW and 22kW - IP20 protection - Modular drive - We have a stock up to 22kW in single and three phase CLOSED LOOP REGULATION - Single and three-phase power supply between 200 and 500V -Digital dimmer -Solution only in 1 or 2Q -Braking possible via chopper and resistor -Power between 1,3kW and 900kW -IP00/IP20/IP54 protection -Modular drive We have a stock up to 160kW in three-phase 400V"

We develop and manufacture electric heating components for air conditioners in train systems and shipbuilding as well as preheaters and braking resistors for the drive technology. In the field of separator technology, we manufacture heating elements for the temperature control of different liquids. In all areas we apply the highest standards of high voltage and insulation resistance.

Our engine test beds are modular systems existing of control unit, dynamometer and mobile engine supports. Applications: Determination of engine performance, runnning engines under a defined load in order to determine other measuring values. Fields of application: Science, development, quality control by manufacturers and control authorities, education (especially air cooled dynamometers). New: Container for outdoor installation for performance testing at combustion engines with all kinds of dynamometers. Our range of engine test beds: - with eddy-current brakes (air-cooled or water-cooled) - low-inertia hydrostatic braking dynamometers - braking dynamometers with water brake - regenerative 4-Q-dynamometers - electric generators, loaded by resistors

The SMD‑4.2DIN ver.2 driver is designed to control two and four-phase hybrid stepper motors with a phase current of up to 4.2A. The unit provides for mounting on a DIN rail, which is convenient for placing it in a production environment. Due to its advanced design, the SMD‑4.2DIN ver.2 delivers dynamics that accelerate the stepper motor to over 1000 rpm in a fraction of a second and easily reach operating speeds of over 4000 rpm while maintaining enough torque to perform useful work For stepper motor operation with high inertia load, a connector is provided for connecting an external braking resistor. The SMD‑4.2DIN ver.2 driver provides both pulse position control and analog speed or angle control. Microstepping mode - 1, 1/2, 1/4,1/8, 1/16, 1/32, 1/64, 1/128 Control methods: - Pulse position control (STEP/DIR) - Analog speed control (0 ‑ 5 VDC or potentiometer) - Analog control of rotation angle - tracking mode (0 ‑ 5 VDC or potentiometer) - Constant speed rotation