In older installations, 12-pulse series circuits with rectifiers and thyristor converters are used. For retrofit projects, therefore, diode bridges can be required as partial converters in conjunction with standard converter units for supplying DC motors. Another (retrofit) application is for subsynchronous converter cascades.
The SIMOREG 6RL70 rectifier module is also suitable for supplying general DC loads that tolerate the use of an uncontrolled rectifier, e. g. DC links for converters in combination with a preloading unit, field supplies and galvanic applications
Standards
DIN VDE 0106 part 10
Protection against electric shock; location of actuators near live parts
DIN VDE 0110 part 1
Insulation coordination for electrical equipment in low-voltage installations.
Requirements for safe isolation ? Pollution severity 2 for boards and the power section.
Only non-conductive pollution is permissible. Temporary conductivity must however be accepted due to condensation.
Dewing is not permitted because the components are only approved for “Humidity Class F”
DIN VDE 0113 part 1
Electrical equipment of industrial machines (where applicable).
DIN EN 50 178/DIN VDE 0160
Regulations for the equipment of electrical power installations with electronic equipment.
EN 61 000-4-2 and EN 61 000-4-4
Interference immunity
DIN IEC 60 068-2-6 acc. to to degree of severity 12 (SN29 010 part 1)
