Line Connection; Table 23: Rating Of Noise Suppression Equipment; Fig. 49: Typical Curve Of The Mains Voltage (Top) And The Related Mains Current (Bottom) In One Phase During The Welding Process - Bosch Rexroth PRC 7000 Betriebsanleitung

270 / 334 Bosch Rexroth AG
Assembly
7.2.2

Line connection

Table 23: Rating of noise suppression equipment
Resistor
24V -
DC
48 V -
DC
110V 220 Ohm / 1 W
AC
220V 220 Ohm / 5 W
AC
440V 220 Ohm / 5 W
AC
When operating medium-frequency inverters a harmonic load must be
accounted for in the mains system.
Typical 300 Hz
Fig. 49: Typical curve of the mains voltage (top) and the related mains cur­
rent (bottom) in one phase during the welding process
The 5th, 7th, 11th, 13th, 15th and 17th harmonic wave are the characte­
ristic harmonics in the mains current curve. The harmonic component
depends om the welding power.
The harmonic content max be considerably reduced by using smoo­
thing reactors with 4% short-circuit voltage.
PRC7000 | R911172834 / 02
Capacitor
- 1 N 5060/ZL 12
- 1 N 5060/ZL 22
0.5 μF 400/600V
0.1 μF 500V
0.1 μF 1000V
Diode