SIMPAX DC resistors are used to start DC motors (e.g. Baldor). They are applied e.g. for the start-up of oil pumps for generator lubrication system.
SIMPAX manufactures SIMPAX DC resistors for each application, each power (from a few Watts to a MW) and each load cycle.
Based on many years of experience and advanced 3D modeling, we can custom design a non-standard DC resistor, requiring unusual resistance elements and power [see SPECIAL DESIGN RESISTORS].
Start-up DC resistors parameters
|Number of Start-up stages:||2-4 (or according to needs)|
|Startup current on each stage:||In accordance with motor’s parameters and the starting current ratio|
|Start-up time:||Provide start-up time and starting current ratio per hour. NOTE: Resistor may be designed for continuous operation with nominal currents. This applies if the contactor does not open. Such resistor strength causes that whole system can continue operating.|
|Resistance:||Specify the resistance for each stage|
|Insulation voltage:||≤ 1kV, or ≥ 1kV|
|Type of cooling:||Natural|