4.21 DC Capacitor Bus Bar Assembly
The DC Bus Bar Assembly includes the bus bars, DC capacitors, Snubber Capacitors, and Bleed Resistors (or Balance
Board). Refer to Figure 4-176 DC Bus Components Identification TTS/TGS/TTH/TGH Rev. F and Earlier (Except
TTS300/TGS230) and Figure 4-177 DC Bus Components Identification TTS/TGS/TTH/TGH Rev. H (Except
The SCRs output DC voltage to the bus bars.
The DC capacitors serve as energy storage and filter out the voltage ripple associated with the operation of the
rectifier circuit and any voltage unbalance in the 3-phase supply.
The Snubber Capacitors reduce noise associated with the Inverter switching frequency.
The Bleed Resistors (or Balance Board) are used to discharge the capacitors after power is removed to allow the
compressor to be serviced safely.
Figure 4-176 DC Bus Components Identification TTS/TGS/TTH/TGH Rev. F and Earlier (Except TTS300/TGS230)
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Summary of Contents for Turbocor TT Series
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