Recent content by Djafer-QP
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SOV for Anti Surge Valve
Hello; Anti surge Control valves for Gas Centrifugal Compressor. the valve equipped with SOV . SOV de-energized in case machine trip and energized during Machine start up. My question, Energize and de-energize of SOV has to be done from ESD or Turbine Control system. Which is the best...- Djafer-QP
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- Replies: 3
- Forum: General Automation Chat
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Ratchting motor 88HR overloaded
Dear James; As per electrical team, unit commissioned 10 years before and no body know why the did not add this protection in circuit diagram. Overload protection for Motor AC/DC is depend of what they agreed during engineering / Commissioning of gas turbines. As per CSA : In general, GE...- Djafer-QP
- Post #16
- Forum: Electrical Engineering
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Ratchting motor 88HR overloaded
Many thanks CSA and ConrolsGuy25 This is happen to GE frame 5, compressor driver. the system was upgraded from MARK V to Mark Vie on 2015. The detail why 88HR overloaded will be shared with you soon. Below snap shots from the schematics, the first one is similar for both Ratchet pump and...- Djafer-QP
- Post #9
- Forum: Electrical Engineering
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Ratchting motor 88HR overloaded
Dear James; My concern is . Why the ratcheting and Emergency lube oil motors 88HR and 88 QE not stopped by contactor relays when are overloaded . Why electric circuits of 88HQ and 88QE are not equipped with overload contactor to stop in case of overload. on the other hands, other auxiliaries...- Djafer-QP
- Post #3
- Forum: Electrical Engineering
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Ratchting motor 88HR overloaded
Dear All; Our GE Gas Turbine frame 5 stopped and ratcheting mechanism was initiated normally, 01 Hours after, we got alarm ratchet trouble due to ratcheting pump not cutting off after time that should be off, other alarm hydraulic ratchet motor overload alarm (L49HR_ALM) initiated from MCC to...- Djafer-QP
- Thread
- Replies: 22
- Forum: Electrical Engineering
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Inlet air filter, air supply
Dear All; In our Siemens gas turbine the air pressure source used for the pulsing is from external air compressor discharge, then every time when the pulsing system started, the air consumption increased and risk to plant instrument malfunction and trip the plant, Due to some unforeseen...- Djafer-QP
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- Replies: 2
- Forum: Power Generation
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MARK VIe Controllers TMR & I/O Pack
Dear ME42; Many thanks for this detail. As per my understood, that for different I/O pack H1B/H2B we have to install different version of ControlST (V04.07.01C, V05.04.00C, V06.01.00C) whereas In same TMR application only one version can be installed. Maybe I can ask the question in a...- Djafer-QP
- Post #9
- Forum: Power Generation
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MARK VIe Controllers TMR & I/O Pack
Dear ME42. I THINK NOT ONLY PCAA. All I/O PACK version H1A/H2A contain a BPPB processor. These processors are reaching end of life. With ControlST* software V04.04 and later, these I/O packs can be replaced with H1B or H2B. My be you are talking about Firmware included in BPPC I/O upgrade...- Djafer-QP
- Post #7
- Forum: Power Generation
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MARK VIe Controllers TMR & I/O Pack
Dear CSA & ME 42. I would like to thank you for your response. After checking GEH-6700, now its clear : FOR I/O PACKS The H1A and H2A I/O PACKS contain a BPPB processor. These processors are reaching end of life. With ControlST* software V04.04 and later, BPPB-based I/O packs can be...- Djafer-QP
- Post #5
- Forum: Power Generation
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MARK VIe Controllers TMR & I/O Pack
Dear All. Hope you are good. I have two questions regarding MARK VIe Controllers TMR & I/O Pack Version UCSB and UCSC can be function together. I mean in same application, R can be version UCSB and S can be USCC and T UCSB. or all RST should be same version. I/O pack IS230PCAAH1A can be...- Djafer-QP
- Thread
- Replies: 13
- Forum: Power Generation
