Product Description

KVR01.3-30/S380 is a power supply unit. It rectifies AC input and supplies DC power to Bosch Rexroth AC drives. The input voltage range for the supply is 380 to 480 Volts AC at 50 to 60 Hertz line frequency. Continuous DC bus power of the supply is 30 kilowatts. The continuous mechanical power is 24 kilowatts. The effective output power depends on the smoothing and commutation chokes used, the auxiliary capacitance modules used and transformers used with the supply unit. Configuration of these accessories allows adaptation of the supply to meet the requirements of the given application. A power protection device for isolation from the AC power system is built in on the drive equipment. Therefore the power supply can be directly connected to the AC power systems without using a transformer. The continuous regeneration power is 15 kilowatts. Dimensions of the KVR01.3-30/S380 supply unit are 355 x 325 x 215 millimeters. A heat sink is mounted on the back for heat dissipation. The supply unit is designed for installation so that the heatsink extends through an opening in the back panel of the industrial enclosure. Approximately 20% of the total heat loss remains in the enclosure. The installation kit provided with the supply unit can be used to seal off the opening to achieve an IP65 class protection. When the supply unit is used with the supplied chokes and capacitance modules, it operates without any significant line reaction. When the AC drives run in generator mode, energy from the drives is fed back to the AC power system with very low losses. The supply is equipped with a bleeder resistor. Therefore, in case of an emergency stop, a delayed power shutoff is not necessary.