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The TVD Power Supply is a high-voltage link that provides a regulated DC bus circuit to power drives, allowing it to operate without a transformer on 3-phase 380V power systems. The TVD Power Supplies can accommodate up to ten drive modules on a single unit, with the TVD1.3 model offering 7.5kW or 15kW of DC bus continuous power. An auxiliary module, such as the NAM1.3 Series, can be used to suppress reactions on the power system. The TVD Power Supplies also allow for temporary overloading to accelerate feed and spindle drives, and can be combined with an auxiliary bleeder module for added functionality.
Technical Specifications
Basic loss
75 W
Bleeder continuous power
0.5 kW
Bleeder peak power
20 kW
Contamination level
non-conductive dirt, no condensate
Continuous DC bus power
7.5 kW
DC bus voltage
320 (± 5%) V
Frequency
50 ...60 Hz
Incoming power
300 VA
Input Voltage
3 x 380 ... 480 (± 10%)
Maximum permissible ambient temperature with derated data
55 °C
Maximum regenerated energy
30 kWs
Peak DC bus power (for 0.3 s)
22.5 kW
Permissible absolute humidity
25g water / m3 Luft
Power dissipation with maximum power (without bleeder loss)
180 W