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Table of contents Table of contents Legal information ......................2 Engineering SINAMICS S120 Booksize ............4 Line connection variants............... 4 1.1.1 Options when connecting the line supply for Booksize Line Modules ....................4 Operating Booksize Line Modules directly on the line supply ....5 Operation on a transformer ..............
1 Engineering SINAMICS S120 Booksize Engineering SINAMICS S120 Booksize Line connection variants 1.1.1 Options when connecting the line supply for Booksize Line Modules A distinction is made between the following line connection versions: • Line Modules are directly connected to the line supply •...
1 Engineering SINAMICS S120 Booksize Operating Booksize Line Modules directly on the line supply The SINAMICS S Booksize converter system is rated for direct operation on TN, TT and IT line systems with rated voltages of 3 AC 380 V to 3 AC 480 V ±10% (- 15% <...
1 Engineering SINAMICS S120 Booksize Operation on a transformer 1.3.1 Safety information Electric shock or fire due to overcurrent protective devices that trip too late or not at all Overcurrent protective devices that trip too late or not all can cause electric shock or fire.
1 Engineering SINAMICS S120 Booksize 1.3.2 Line supply connection conditions for Booksize Line Modules 1.3.2.1 Transformer design for connecting Booksize Line Modules to the line supply A transformer should be used for connecting Booksize Line Modules to the line supply. The following diagram shows connecting a Booksize Active Line Module to an isolation transformer as example: Fig.
1 Engineering SINAMICS S120 Booksize Definition of terminology PCC "Point of Common Coupling" is the point where the customer's line supply is connected with the power grid. Typically, this is the power utility transfer point, and can be on the medium-voltage or low-voltage side.
Minimum relative short-circuit power RSC as a function of the Line Module Depending on the specific SINAMICS S120 Line Module Booksize being used, the following minimum relative line short-circuit power levels must be maintained: Table 1-1...
1 Engineering SINAMICS S120 Booksize 1.3.3 Notes on calculation variants Two calculation examples are shown below. One is used to dimension a matching transformer, the other to check an existing line connection with transformer. For a more precise calculation, data on cable lengths and cross-sections along with the short-circuit power at the PCC (Point of Common Coupling) are required.
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DIN EN 60076-5 lists recognized minimum values according to power classes. In the typical power range for matching transformers from 25 to 630 kVA for SINAMICS S120 Booksize, the minimum value is 4%. Up to power ratings of 2500 kVA, this value increases up to 6%. This is the Note reason that here it is recommended to specify typical values from 4% to 6%.
Additional possibilities for making an estimate exist: 1. The line short-circuit power is not known. In the power range of SINAMICS S120 Line Modules Booksize, in European line supplies/grids, the line short-circuit power is typically very high when compared to the apparent power of the Line Module;...
2 Examples and tips Operation on a generator How can I estimate the relative line short-circuit power when directly operated on a generator? As the ohmic resistance of the generator when compared to the inductive resistance is very low, it can be neglected for the calculation. As a consequence, the calculation is only made with the relative subtransient reactance of the generator ′′...
Frauenauracher Str. 80 91056 Erlangen, Germany mailto: tech.team.motioncontrol@siemens.com Links and references Table 3-1 Subject Siemens Industry Online Support https://support.industry.siemens.com Link to the entry page of the application example https://support.industry.siemens.com/cs/ww/en/view/109808992 Configuration Manual SINAMICS G130, G150, S120 Chassis, S120 Cabinet Modules, S150 https://support.industry.siemens.com/cs/ww/en/view/83180185...