Hi All,
we have four similar 360MW steam turbine generating units build in 2002, The generating units are equipped with static excitation system. The generator output voltage is controlled through automatic voltage regulator. The voltage regulator controls the output of 18 thyristors...
Hello Everyone,
We had just finalized onsite repair for 420MVA/18/220kV.The high voltage exit leads had been replaced due to poor crimping.
Part of the repair scope is to conduct high voltage test by the repair company.
What is the best practice in this case, should we hire third party to...
thread238-414004
Hello everyone,
i refer to my last December 2016 thread regarding two identical transformers 420MVA repair due to the same defect, finally one of them was repaired by replacing high voltage exit leads which were found burnt. the transformer is back in operation after passing LV...
Hi All
we have two identical generators transformers 420MVA(18/220kV). both transformers has almost the same service time 14 years and got high DGA and buchholz alarms one year in between.
both transformers are currently under inspection by OEM and initial findings were burnt cable in phase -W-...
We are running a power station with two steam turbine units 360MW each. in which SEIMENS EMLO-F 2BE1 liquid ring vacuum pump installed two per each steam turbine unit. Normally with 2 pumps in service we are able to pull condenser vacuum from atm to 130mbara in 70 minutes. We had a problem last...
