Recent content by CH Lee

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    fisher pcv installed in petrol road loading line

    Is this PCV used in TTLR ( Tank Truck Loading Rack) for each meter run? Over here most of the oil terminals deploy FMC (formerly known as Smith Meters) electronic preset with 210 Digital FCV for truck loading application, it's 210 valve is a self contained, product actuated diaphragm valve...
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    Automatic Synchronizing and Load Sharing

    Yes, we have one and ever made adjustment as mentioned in earlier post.
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    Automatic Synchronizing and Load Sharing

    I have mentioned in earlier post, I have made adjustment on externally accessible pot, P1- speed, no improvement.
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    Automatic Synchronizing and Load Sharing

    Dear Jame, Is the attached manual refers to Cos ∮- KVAR optional card, the title of document is blocked, if so, sorry to tell you that there isn't such optional card fitted to our system. As for adjustment to Digital pot U/P.F. Optional Card externally, I have shared in previous post.
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    pump flow control

    My apology, I misintepreted your requirements, I am not well versed with control algorithms.
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    pump flow control

    Pleass
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    pump flow control

    First of all, you need to tell what type of Pump you are working on to control the flow, e.g. centrifugal, diaphragm or reciprocating Pump, you need to maintain system pressure or can live with lower pressure while flow rate is reduced. A detailed descriptions of pumping system will narrow down...
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    Automatic Synchronizing and Load Sharing

    Last month load test encountered same problem, at the end of 2 hour load test, I thought of doing auto loading in controlled manner, however, my colleague was too slow to respond allowing total load swung from 1 unit to the other, leading to reversed power tripping. Our client was around, so...
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    Automatic Synchronizing and Load Sharing

    Shunt. Alternator has a PMG.
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    Automatic Synchronizing and Load Sharing

    Dear James, Noted with thanks, enjoy your vacation. Thanks.
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    Automatic Synchronizing and Load Sharing

    Dear James, If you follow the drawing closely, you would have realize those open/close Switches are for manual operation. From my understanding, the operator supposed to operate PB when he wants to stop one generator, the system with ramp the load down to a predetermined level, then...
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    Automatic Synchronizing and Load Sharing

    Operate PB, unloading and open the breaker. By the way, have you ever come across leroy Somer AVR model R630?
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    Automatic Synchronizing and Load Sharing

    GSB is referring to another equipment, Generator Switchboard (11KV).
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    Automatic Synchronizing and Load Sharing

    Dear James, There isn't any MLSC installed in this system. Two tests carried out in the couse of troubleshooting. 1. Both units on droop mode, active and reactive load shared perfectly with total connected load fluctuations without operator intervention, frequency varies according to total...
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    Grid frequency unstable - potential problems?

    Dear CSA, Thanks for pointing out. What an embarrasement to reply the post without realizing not reading through whole series of exchange of communications. From the communications, I can see the sincerity and generosity from both of you to share the knowledge and help people out. God blessed.
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