Recent content by absado

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    Servopro Multiexact 4100

    Dears, if someone has experience on the analyzer servopro multiexact 4100. I need how to setup it. my problem is that this analyzer (CO2 only) was working properly, I want to configure a new output relay, during this time the display became blue, no reading, no engineering unit. I tried to...
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    Control valves leakage class VI

    Dear Samran; thank you for the reply. 1. the valve has been tested without positioner. the force applied on the the plug is from actuator springs. during this test (operating pressure 41.5 bars, air) we saw air bubbles. I have checked the ANSI standard FCI 70-2: Control Valve Seat Leakage it...
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    Control valves leakage class VI

    Dears; we have recently change the plug and seat of a globe valve (gas CH4; leakage class VI). the DP pressure in the data sheet is 39 bars. once put in service the pressure transmitter downstream the valve is showing 2.5 bars, even if the valve is in close position, pressure upstream is 41.5...
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    ST Power Generator

    Dear James; thank you for the reply. When the operator opened the 52L (grid breaker), the power taken from the grid was almost 0 MW (0.5 MW more or less). Could you please let me know how can I share the single line diagram? <b>Moderator&#8217;s Note:</b> At present, you cannot post...
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    ST Power Generator

    Hi, Thank you for the reply. Sorry for the delay, as requested, below is email [email protected] thanks in advance and best regards
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    ST Power Generator

    Dears, Could someone give and idea?
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    ST Power Generator

    Dear Sir, Thank you for your time. Hope that the rotor was inserted without problem. please be informed that we do not export power to grid, we only import to our plant (we are not allowed to export). Yes we have AVRs. and we produce the MVAR, otherwise we will get penalties from the...
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    ST Power Generator

    Dear Sir, Thank you for the reply. I will try to give you more details: We were in parallel mode PG1 = 6MW (second warm up timer on), PG2=28MW and the grid=1MW. We want to disconnect from grid (manually). The normal procedure is: 1. Open 52G then automatically PG1 will control speed...
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    ST Power Generator

    We have 2 PGs 40MW each one,connected to the grid. If island mode is selected, 52G breaker open (or trip), PG1 goes to speed control, and PG2 goes to droop control (KW). What happened is that we want to disconnect from grid "due to some planned job of public grid" (normally to open 52G). But...
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