KEPCO RKE 1500W Series Operator Manual - Manual (Page 12)

10
RKE 1500W 021913
FIGURE 9. PARALLEL CONNECTION WITH CURRENT BALANCING
6.2.1 CURRENT BALANCING
For parallel operation (see Figures 9 or 11) the conditions for current equalization are:
variation of output voltage in each power supply
The maximum output current: Rated output current of each power supply x (number of power supplies)
x (20 to 90 percent).
Variation of output current < ±10 % of each rated output current
6.2.2 MASTER-SLAVE CONFIGURATIONS
Master-slave operation allows the output voltage of all the power supplies connected in parallel to be
adjusted at the same time by using the Vadj control on the designated master power supply.
6.2.2.1 MASTER-SLAVE, MULTIPLE LOADS
Figure 10 shows the master-slave connection of three power supplies in parallel, each having an inde-
pendent load, with output voltage controlled by the Vadj control of the master power supply. Use
shielded wire for connections to RV terminals.
FIGURE 10. PARALLEL CONNECTION, MASTER-SLAVE, MULTIPLE LOADS
6.2.2.2 MASTER-SLAVE, SINGLE LOAD
Figure 11 shows the connection of three power supplies in parallel to a single load. The output voltage
of all power supplies is controlled by Vadj of the master. Current balancing is implemented to equalize
Maximum Voltage Minimum Voltage –
Rated Voltage
------------------------------------------------------------------------------------------------------- 2 % =