What kind of switch is the high-pressure process water pump P3302ASEL on Shell’s gasifier DCS?

2018-01-12View Original

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Next to the high-pressure process water pumps P3302A/B on the Shell gasifier DCS, there are P3302ASEL and P3302BSEL respectively. What kind of switch are these?

Reply #22018-01-16

It would be better to ask this question directly to the people at the instrumentation engineer station

Reply #32018-01-16

Check the drawing index section, or look at the instrument interlock section; you should be able to find the answer you need there.

Reply #42018-02-01

This pump is an interlocked auto-start pump; selecting SEL means designating this pump as the primary or backup pump

Reply #52018-02-02

SEL=SELECT: Choose between Pump A or Pump B. It might be activated during interlocking.

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What kind of switch is the high-pressure process water pump P3302ASEL on Shell’s gasifier DCS?

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