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  • Users: powerjunx
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  1. powerjunx

    vegaflex 81 erratic reading?

    hello there, i got an erratic reading of vegaflex 81 which measures the level of LPG Economizer Tank.. This tank is use either FLSC (flash liquid sub-cooling) or LSC operation. 2 out of 3 (separate) tanks has experience erratic reading where the level control valves restlessly moving 0 to 80%...
  2. powerjunx

    Basis of ADC counts?

    Hello, there! Anyone who is familiar with Kongsberg Automation, can you crack for me the Basis of ADC counts? I tried using mobile apps for ADC to calculate as per table below but i am confuse. As shown on attachment.. "..the more, the merrier" Genghis Khan...
  3. powerjunx

    LNG Compressor

    Hello, anyone who had good comparison or alternative for Burckhardt compressor for LPG/LNG reliquafication plant? Thanks "..the more, the merrier" Genghis Khan
  4. powerjunx

    VFD 400VAC adjustment

    Hello, I got a burn out motor winding due to mis-configuration of VFD setting. Yet, i could never find motor data setting on VFD for Voltage rating, however only percent voltage output (VFD) is available. So i tried to play along this voltage output as well as frequency adjustment to coincide...
  5. powerjunx

    Eprom problem

    Hello, i got a controller having 2 EPROM (SST27SF020-70-3C-PH), CPU and EEPROM. Already confirm good condition of terminal connections as well as simulation test of I/O's thru keypad input. What i found is that the system never responds to the operational keypad input (such as starting a fan...
  6. powerjunx

    Airconditioning Cooler Regulation?

    Got here Aircon unit with old documents. Pages were torn and more missing. Attached pic, i found page with Graphical Cooler Regulation??? Anyone plz elaborate what this mean? It's a Standard ARP of York Refrigeration, Marine & Controls. Comments well appreciated. "..the more, the merrier"...
  7. powerjunx

    Megger Testing in Hazardous Location

    Hello, Can anybody provide me any suggestions about standard practice or precautionary measures of conducting Megger Test in Hazardous Area containing Hydrocarbons. It is a topside electric motor pump as well as gauging instrument devices of loaded crude oil tanker. A link of brief literature...
  8. powerjunx

    STeam Boilers DP level xmitters

    Anyone could provide me from field experience as how to calibrate and calculation set up for Steam Boiler DP level transmitter with capacity of 10-18 bars ? thanks, your comment is highly appreciated. "..the more, the merrier" Genghis Khan
  9. powerjunx

    Generator Class

    Experts, i need your advice..[sunshine] I got a difficulty to prove, regarding AC Synchronous Generator Performance Class 1-4 as per NEMA MG1 description. Which class utilizes excitation system having static, brushless, PMG, etc? Are these classes relative to excitation system or simply...
  10. powerjunx

    Switching Power supply

    What makes the difference between switching mode power supply and a simple power supply unit? i tried to google yet i can't find good literature to define it. anyone could share his expert understanding? "..the more, the merrier" Genghis Khan
  11. powerjunx

    Ships Steering Gear / Rudder Hunting Response

    Hello there, im stuck with rudder that has hunting response at every end stop points of about 2-3 degrees as the following; Midship, port & stbd 30 i.e. rudder actuator keeps activating in response to the error. tried to zero the feedback unit hunting persist at midship position. its Roll-Royce...
  12. powerjunx

    Shipboard Radiation Hazards..

    Regarding navigational 1.) RADAR, 2.) Telemcom/Radio Antenna, 3.) BroadBand antenna. Anyone could pointed out the risk/hazard while aboard the ship; on deck, cabin and bridge areas. while on board, i got tired eyes after days work.. i suspect radiation may be the cause..when got home i never...
  13. powerjunx

    LNG Tanker operation

    hi, guys! i've been googling about LNG process operation for loading, storing, and discharging from LNG Ship Tankers, but sadly not enough literature ever found. I guess out you there would help find me the way to get the stuff im looking for. perhaps web site will help relating such...
  14. powerjunx

    TEFC conversion

    hi guys, is there such a case as converting TEFC to explosion proof motor enclosure? If so, how this would affects the machines performance and the provisions of motor standards? Any help? Thanks "..the more, the merrier" Genghis Khan
  15. powerjunx

    FPSO operation

    Hi Guys, Anyone who can give me an overview of Floating Production Storage Off-load Vessel electrical or instrumentation operation and set up? Could you suggest books or literature about this stuff? Thanks in advance. powerjunx
  16. powerjunx

    crane application motor?

    Hi, guys! We're on the verge of seeking alternatives for our revamp and retrofitting of our cranes. Hence, i'm desperately looking OEM for us to decide which best for such application. Anyone could help me to find out OEM for "Conical rotor motor" aside from DEMAG? I've tried googling such...
  17. powerjunx

    XP Pro 64 graphics

    Hi, just installed XP Pro 64 with AsRock motrherboard 775i65. I'd recieve errors or i can't simply install CAD or PC game softwares, while i'd successfully installed before on XP Pro 32 bit flatform. Looking back to event viewer, it suggests to install internal graphics thereby download on...
  18. powerjunx

    Flow meter?

    How factored and unfactored scale affects flow rate? Flow meter specifies 2ms for unfactored, does it mean that it coincides with the rated flow rate? Thanks. "Whenever you are asked if you can do a job, tell them, certainly I can! Then get busy and find out how to do it." Theodore Roosevelt.
  19. powerjunx

    Boiler literature

    Anyone had a downloadable resource about boiler principle and literature? Please post a link. Thanks. "Whenever you are asked if you can do a job, tell them, certainly I can! Then get busy and find out how to do it." Theodore Roosevelt.
  20. powerjunx

    Coil withstand voltage fluctuation?

    Hello, guys. To answer my desperation of getting rid of magnetic contactor coil voltage "drop out" that leads to trip our plant, i been searching to address the cause of tripping as to stop the recurrence of such incident. Here's the link that somewhat attracts my unanswered query...

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