Recent content by Flashover

Hi all, i have been asked to lead a close out report on our last project on the electrical and C&I areas. i was just wondering if anyone might have done some work on these type of reports and have info which might be of help. this being a first for me i am keen to deliver a good and...

Hi all, i have posted under standards, but just on the off chance someone might know here, can someone confirm if the latest MV(6.6kV) ANSI code calls for the control compartment (local control, metering, protection etc) to be removed from switchgear panel and located elsewhere mant thanks...

Hi all can someone confirm if the latest MV(6.6kV) ANSI code calls for the control compartment (local control, metering, protection etc) to be removed from switchgear panel and located elsewhere mant thanks Flashover Flashover

Hi all I am putting together a document on earthing and lightning protection. akin to guidelines for installations etc in the UK. i have conducted the usual web searches etc. I would be very grateful if anyone has some useful websites or documentation i could include. as always many thanks...

thanks guys am following up on your suggestions immediately Flashover

many thanks JPlinn, still have not removed the rotor for inspection. contractor will replace rotor however they sujjest we comtinue running. this is not satisfactory as we will still not have a definitive answer on the problem. its a brushless system and they claim we cannot run an RSO test...

I feel the same, however we only get this vibration/ probable heating at 0.85pf lagging, we can run at 0.95, 0.9 etc and no problem Flashover

Hi all i posted this in the power engineering section and got some great responses. just posting here in case anyone might have anything else to offer many thanks Flashover Flashover (Electrical) Feb 3, 2005 Hi All, interesting one for the board. we have 150 Mwatt, 181.2 MVA generator (onto...

Thanks all Very much appreciated Flashover

Thanks very much all, the improvement in cooling conditions has not resolved the problem. Big decisions required on what way to proceed regards Flashover

Latest development, is supplier believes that the cooling water for cooling air system should be increased. i.e it is an Air cooled generator (the air is cooled by closed cooling water system). i am afraid this will just cover over the real problem of heating in the rotor. are there any tests in...

Hi all, its an air cooled machine. the gaurantee is 150 MW at 0.85pf. any suggestions for further investigations that may help? thanks Flashover

The vibrations go back to normal operating levels when the power factor is restored to Unity. we can then continue to operate at full load. we are now testing at 0.95, 0.90 etc cheers Flashover

Hi All, interesting one for the board. we have 150 Mwatt, 181.2 MVA generator (onto 110kV system), when operated at unity power pactor or slightly lagging we have no problems. however when run at full load and 0.85pf lagging we get vibration levels rising rapidily after about three hours (i.e...

hi Metengr its a new solid fuel boiler thanks Flashover