Frekvenční měniče Katalogy, manuály (EN+CZ)

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Vydal: ABB s.r.o, ELSYNN Autor: ABB ELSYnn

Strana 63 z 825







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Sym bol Explanation Un Nominal ains voltage. For more information see the ACS800 hardware manuals. A Rise tim i. For information the construction the motor insulation, consult the manufacturer. Non-ABB Form -wound 600 690 the otor insulation system ithstands ÛLL=2000 and At=0. Insulated N-end (non-driven end) bearings and or common mode filters are also required for motor bearing currents with motors bigger than 100 kW. ABB form ound HXR and otors 380 690 Standard insulation system.3. 500 600 the insulation system ithstands ÛLL=1800 /dt filtering not required. Filter selection table for ACS800 M otor type Nominal mains voltage (Un) M otor insulation requirem ent ABB and M3 otors Un 500 Standard insulation system. ABB random -wound HXR and otors 380 690 Check otor insulation system ith the otor manufacturer. the motor does not fulfil the following requirements, the lifetime the motor might shorten.2 ^s, du/dt filtering is not required.2004 25 .e.35 times the mains network voltage with very short rise time.Output filters Factory installed filters. When needed? The need for du/dt filtering de­ pends the motor insulation. W ith /dt filtering, the insulation system must ithstand ÛLL=1600 V. As with all frequency converters employing the most modern IGBT inverter technology, the ACS800 output comprises regardless output frequency pulses of approximately 1. 500 600 Standard insulation system conjunction with du/dt filtering reinforced insulation.3 ^s, du /dt filtering not required. . The voltage can almost double the motor terminals, depending motor cable properties. N on-ABB R andom ound Un 420 Insulation system must ithstand ÛLL=1300 V. interval during hich line line voltage otor term inals changes from 10% 90% of full voltage range. 420 500 the insulation system ithstands ÛLL=1600 and At=0. 600 690 the otor insulation system ithstands ÛLL=1800 du/dt filtering not required. 600 690 Reinforced insulation system conjunction ith /dt filtering. Du/dt filtering suppresses inverter output voltage spikes and rapid voltage changes that stress motor insulation. Additionally, du/dt filtering reduces capaci­ tive leakage currents and high frequency emission of the motor cable well high frequency losses and bearing currents the motor. With du/dt filtering, the insulation system must withstand ÛLL=1300 V. du /dt filtering with voltages over 500 V. 3AFE 68248531 REV 31. U Peak line line voltage otor term inals