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M-SV-001-EN Rev. G
4.21 Snubber Capacitors
Refer to "4.22 DC Capacitor Bus Bar Assembly" for details on the Snubber Capacitors.
4.22 DC Capacitor Bus Bar Assembly
The DC Bus Bar Assembly includes the bus bars, DC capacitors, Snubber Capacitors, and Bleed
Resistors. Refer to "Figure 4-179 DC Bus Components Identification TTS/TGS/TTH/TGH Rev. F and
Earlier (Except TTS300/TGS230)" and "Figure 4-180 DC Bus Components Identification TTS/TGS/TTH/
TGH Rev. H (Except TTS300/TGS230)" on page 157.
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 are used to discharge the capacitors after power is removed to allow the
compressor to be serviced safely.
Figure 4-179 DC Bus Components Identification TTS/TGS/TTH/TGH Rev. F and Earlier (Except TTS300/TGS230)
Snubber
Capacitors
(3 places)
Bus Bar
Bleed Resistors
(4 places)
DC Capacitors
(4 places)
Содержание TGH285
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