ABB DSDP160 57160001-KG Switch output card

Transformers are only needed if the systems voltage exceeds the permitted rated voltage of the DKC. For grounded power supply lines, the line voltage is matched to the rated voltage of the units using autotransformers which are suitable for one specific output voltage range (see Fig. 9-1). To match the voltage for ungrounded power supply lines, always connect isolating transformers to prevent excess voltages between the outer conductor and ground. This document does not offer a product program to select suitable isolating transformers. (Request this information if needed)

Autotransformers for DKC**.*-040-7-FW 

Select an autotransformer suited to both the line voltage and the power requirements of the system. Proceed with the selection as follows: ⇒ Determine the rating group and read the gearing ratio "i" using the required rated line voltage range from the diagram in Fig. 9-1. ⇒ Calculate the actual transformer output voltage using the rated line voltage and the gearing ratio "i". ⇒ Check drive data. The output voltage of the transformer affects the drive data. See documentation "ECODRIVE Servodrives DKC with MKD"- Selection lists - (see pg. 3 of the supplementary documentation). ⇒ Select a three-phase autotransformer via the required connected load

Power dissipation

 Power dissipation is determined by the current load and the continuous regenerative power. The actual power dissipation is dependent on the respective cycle load. The AC motor implemented has been laid out for this load cycle. On the average, the maximum continuous current at standstill IdN of the AC motor will flow through the drive controller.When planning the control cabinet, it is necessary to take the technical data of the drive components into account.

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