Siemens SINAMICS G120P Руководство по эксплуатации - Страница 13

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Components

The order numbers of the individual components (du/dt reactor and voltage peak limiter) are

listed in the following table:

Table 2- 2

du/dt filter plus Voltage Peak Limiter, order numbers of the individual components

du/dt filter plus Voltage Peak Limiter

6SL3000-2DE35-0AA0

6SL3000-2DE38-4AA0

Limiting the rate of voltage rise and the voltage peaks using an output reactor and du/dt filter plus

Voltage Peak Limiter

Fast-switching IGBTs in the converter result in high voltage gradients du/dt at the converter

output. If long motor cables are used, this leads to an additional current load on the

converter due to capacitive charge/discharge currents. The high voltage gradients, and the

resulting transients at the motor terminals, cause the motors' electrical winding load to

increase as compared with direct on-line operation.

The du/dt filter plus Voltage Peak Limiter limits the rate of voltage rise to values < 500 V/µs

and the typical voltage peaks Û

150 m)

dV/dt filter plus Voltage Peak Limiter

Operating Instructions, 04/2014, A5E32847105B AB

du/dt reactor

Line voltage 380 V – 480 V 3 AC

6SL3000-2DE35-0CA0

6SL3000-2DE38-4CA0

to < 1000 V at U

Voltage limiting network

6SL3000-2DE35-0BA0

6SL3000-2DE38-4BA0

≤ 575 V (for motor cable lengths of ≤

line

General