Siemens SINAMICS GL150

3.3.2 Power unit components
The diagram below shows an example of the typical components in a continuous operation
converter for a 12-pulse drive system with water cooling:
① Circuit breaker
② Surge suppressor
③ Line-side converter with one to six thyristors in series
④ Water-cooled DC link reactor, installed in a cabinet
⑤ Motor-side converter with one to six thyristors in series
⑥ Static excitation equipment and synchronous motor with excitation
⑦ Motor current transformer in the output phases
⑧ Motor voltage sensing (U
M
sensing)
⑨ Ground fault detection
⑩ Ground fault detection
⑪ Current transformer in input phases
⑫ Converter transformer
⑬ Synchronizing transformer or converter
⑭ Make-proof grounding switch
⑮ Cooling unit
⑯ Disconnector with make-proof grounding switch
Figure 3-1 Example: Components of a water-cooled continuous operation converter for a 12-pulse drive system
Description
3.3 Power unit
SINAMICS GL150 6SL38555UN113KA0Z
Operating Instructions Rev.201910281450 EXAMPLE 31