Hi,
I have a 28 year old Siemens motor that appears to be on the way out. Motor vital statistics are-
* 6.6 kV
* Wound rotor
* rod mill load
Over the last few weeks a new rod mill was put in and charged to an aim of 100% motor load. While it is a bit odd to adjust a process based on the...
Hi,
I've just been through a 'black start' on a 100MW islanded power station after boiler feed water was contaminated with mud! Anyway the power is back on but I had a few quick ones to see of anyone else has seen them before-
1/ During energisation of a new generator step up transformer the...
Hi,
Our project department is installing resin encapsulated bus for a 4MVA/433V transformer secondary connection through to the switchboard.. This is suggested to be able to fit it into the space available (i.e. rather than using cables). We have had many failures previously with 'standard'...
Hi,
Let me know if this doesn't meet forum rules! We have 3 x 50MVA 11kV 3000 rpm ABB Generators. These were constructed around 1972 and all need the rotor insulation replaced. For a long time it has been creeping out from between rotor bars and while it can be trimmed is now at the stage that...
Hi,
Has anyone got a good source of transformer reliability data? I look after a 22kV distribution system in a tropical area and am looking for data to benchmark against.
Thanks in Advance!
