We have 3 large Elliot Gas Compressors, driven by 13.8 KV:14MW. Alstom Synchronous Motors. For some unknown reason one of the Compressors gives a higher Output Flow, with consequent increase of output power than the other two. We have the latest Compressor Controls System gear for anti-surge and...
Could any one tell me if these transmitters can be re-calibrated after changing the sensor module to a different range eg from -250"H2O to 250"H2O, to a new sensor module of say -1000"H2O to 1000"H2O. Without any special software or help from the manufacturers etc. As my company are to miserable...
Why are some motors connected in star as opposed to Delta or vice versa?
1/Star connection is used mainly on small motors up to 20KW.
2/Connection in Star increases the Start and Run currents of all 3PH squirrel cage induction motors.
3/Remember Phase voltage = Line V divided by Root 3
4/So this...
Can anyone tell me if there is a handheld communicator available for fieldbus, as in Delta V or profibus. What i'm looking for is something similar to a Hart communicator.
Hi VMAC if have a fair bit of experience on Ruston TB5000's, however not in a tropical environment. By what you've mentioned it looks to me as though you will be experiencing problems with your intake air. As you probably know the humidity will be helping to block your intake filters. Obviously...
Thanks everbody for your replies, they proved most helpful as i managed to convince the powers that be to remove XP and re-install Windows 95!!! All's well that ends well.
Could anyone give advice or a website regarding the following problem. We have a remote station monitor in control room which was windows 95 with a dos program for giving running data on a Gas Turbine shipping pump. It is an Allen Bradley PLC 5 to a station PC with Artic card, RS232 as the data...
If you have six wires, they will probably be marked U1-U2,V1-V2,W1-W2 in other words UVW are the three phases. If there is no markings use a multimeter to determine each seperate phase and mark the wires as above. If you connect your incoming cable to U1,V1 and W1. Connect U2,V2,W2 together...
Thanks for all the replies, but i think i should explain further, The Caterpillar is for Isoch operation only, as you suggested a governor will have to be purchased. This is a small Production platform in the gulf run by Aramco. Inside the breaker cubicle for the Ruston there is a cross current...
The short answer is no the Earth Fault or Asymmetric Fault current will never be higher than the Short Circuit or Symmetric fault current speaking from a practical point of view. Earth fault protection of equipment using Core Balance Transformers on the individual machines, and current...
Could anyone tell me the best method for making two entirely different generator sets load share. The main generator is driven by an old Ruston TA gas turbine with a mechanical governor set at 5% speed droop, the standby generator is a Caterpillar diesel set bought as a prime stand alone...
