D CDA3000 Inverter Drive System 750 W - 132 kW - Igor Chudov
D CDA3000 Inverter Drive System 750 W - 132 kW - Igor Chudov
D CDA3000 Inverter Drive System 750 W - 132 kW - Igor Chudov
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<strong>CDA3000</strong> Operation Manual<br />
Mains load (example)<br />
Mains voltage asymmetry (example)<br />
Without line choke With line choke Change<br />
4 <strong>kW</strong> inverter,<br />
mains impedance<br />
0.6 mH<br />
Recommended:<br />
The example shows that the benefits of a line choke with 4 % short-circuit<br />
voltage are multi-faceted. We therefore recommend that you use a line<br />
choke as a matter of course.<br />
A-13<br />
4 <strong>kW</strong> inverter,<br />
mains impedance<br />
6mH<br />
Without line choke<br />
compared to<br />
with line choke<br />
Voltage distortion (THD) 1) 99 % 33 % -67 %<br />
Mains current amplitude 18.9 A 9.7 A -48 %<br />
Mains current effective<br />
Commutation notches<br />
8.5 A 6.23 A -27 %<br />
referred to the mains<br />
voltage<br />
28 V 8 V -70%<br />
Life of the DC-link<br />
capacitors<br />
Nominal life<br />
2 to 3 times<br />
nominal life<br />
+100 to 200 %<br />
1) THD = Total Harmonic Distortion (U 5 ...U 41 )<br />
Table A.1 Change in system load resulting from insertion of a line choke<br />
with 4% short-circuit voltage based on the example of a 4 <strong>kW</strong><br />
inverter CDA34.010<br />
Without line choke With line choke<br />
4 <strong>kW</strong> inverter, mains<br />
impedance 0.6 mH<br />
4 <strong>kW</strong> inverter, mains<br />
impedance 6 mH<br />
Asymmetry of mains<br />
voltage<br />
0 % +3 % -3 % 0 % +3 % -3 %<br />
Mains current amplitude 18.9 A 25.4 A 25.1 A 9.7 A 10.7 A 11 A<br />
Mains current effective 8.5 A 10.5 A 10.2 A 6.2 A 6.7 A 6.8 A<br />
Table A.2 Effect of the line choke with asymmetrical mains voltage<br />
based on the example of a 4 <strong>kW</strong> inverter CDA34.010<br />
1<br />
2<br />
3<br />
4<br />
5<br />
A<br />
DE<br />
EN<br />
FR<br />
IT<br />
ES<br />
FR