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Old August 4th 10, 02:07 PM posted to sci.space.station
Mika Takala[_6_]
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Posts: 7
Default Losing one's cool

On 4.8.2010 9:53, Brian Gaff wrote:
No I was not suggesting that at all, but the report I read was that the
motor started, but there seemed to be a short in the wiring that tripped the
breaker again. Thus, one wonders if its the wiring to the pump not the pump.


They were trying to see if the pump started to turn or was the motor
shorted, and it did start to turn and then overcurrent protection
tripped the RPCM. Keep in mind that its a Pump Module; theres lots of
electronics, controller boards, circuits, EMI filters etc and wiring
_inside_ it that can short as well.

All in all, MMOD hit to wiring from the RPCM to the PM would be possible
but much more unlikely than a simple hardware fault in the Pump Module.

--
Mika Takala