Line Reactors For Basic Line Modules; Description; Safety Information - Siemens SINAMICS S120 Equipment Manual

Line-side power components

4.4 Line reactors for Basic Line Modules

4.4 Line reactors for Basic Line Modules
4.4.1

Description

Line reactors limit low-frequency line harmonics and reduce the load on the semiconductors
in the Basic Line Modules. A line reactor must be used in connection with a line filter or if
several Basic Line Modules are operated in parallel.
If a Basic Line Module is operated singly and no line filter is used, and with an effective line
impedance uk > 3%, the line reactor is not necessary.
4.4.2

Safety information

Not observing fundamental safety instructions and residual risks
Not observing fundamental safety instructions and residual risks listed in Chapter 1 can
result in accidents with severe injuries or death.
• Comply with the fundamental safety instructions.
• When assessing the risk, take into account remaining risks.
Burns resulting from high surface temperature
The line reactors can become very hot. You can get seriously burnt when touching the
surface.
• Mount the line reactors so that contact is not possible. If this is not possible, attach
• To prevent adjacent components from suffering damage due to these high
NOTICE
Damage to the system caused by the use of inappropriate and not approved line reactors
Inappropriate line reactors that have not been approved can damage the Line Modules.
Line harmonics that damage/disturb other loads connected to the same line supply can also
occur.
• Only use line reactors which are listed in this Manual.
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WARNING
CAUTION
clearly visible and understandable warning notices at hazardous positions.
temperatures, maintain a clearance of 100 mm on all sides of the line reactors.
Air-cooled chassis power units
Manual, 07/2019, 6SL3097-4AE00-0BP9