Altivar 1260 Medium Voltage Drives Page 50 Primary components

Key components 50 Altivar 1260 MV variable speed drive These capacitors are in charge of storing the electrical energy in order to provide nearly constant direct voltage, to be used by the inverter to reconstruct the alternate output current required by the application (motor). The capacitors are mounted directly on the bus bar to reduce parasite inductance. DC Bus Capacitors Capacitive Value: 4 mF Maximum Current: 510 A rms Cooling: Natural convection Weight: 125.7 lbs Dimensions (HxWxD): 23.4 x 6.7 x 18.5 inchesm Max tightening torque: 11.8 ft-lb The main function of the vertical bus bar is to provide the electrical connection of N, 0 and P from the bus capacitors to the IGBTs with the minimum parasitic inductance possible. Vertical Bus Bar Weight: 27.9 lbs Dimensions (HxWxD): 27.8 x 32.1 x 1.2 inches The voltage sensors in the inverter and the rectifier are used to measure DC bus voltage and the input/output voltage of the rectifier / inverter. Two different sensors are used, depending on the converter output voltage. Voltage Transducer (4.16KV) Full scale: 4200 V Dimensions (HxWxD): 8.5 x 5.3 x 2.1 inches Isolation voltage: 18.5 KV

Previous Page
Next Page