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Hi there! After one year of new motor pumps operation, I have found 3 of 6 motors (with the same submergible pump) with 2 phases of 3 with terminal burnt in the conection of star, I have read phase insulation and it´s good and similar comparing with good ones. Some data is 44 kW, 80 A (plate)...

Hi there! I need to test the CO2 Fire Fighting Generator Protection, but I'm worry about some effects in the generator itself (stator-rotor insulation, air coolers). Do anybody have some experiencie in this kind of issue? Thanks in advance!

Hi there There is a little cooling tower (130 l/s) used to condensate gases in HVAC, which use filtered river cooling water, actually it works without additives and without blowdown, it was working in this way one year, I would like to know the best additives and how calculate the blowdown...

Hi There! I would like to know how calculate Joule Effect losses in a 48.2 MVA Generator when its temperature increase in 3°C, working at same base load 43.5 MW, working at pf of 1.00. How can I find "R"? in I^2 X R.

Hi there In a hydraulic power plant: Toshiba Generator of 48.2 MVA, Stator and Rotor insulation class F, which is air cooled, there are 4 coolers plate fin type fixed with tube sheets, the circulation of air is performed by mean of rim duct equipped on the generator rotor, the cooling system...

Hi there! What is the best way to clean motors in service?. Thanks

Hi there!! In a project of MEVC desalination plant, the water produced has a 6.5 - 7 PH. To avoid corrosion in steel tubes, is a good idea put a NaOH injection system? Bye

Hi There! Actually I'm working in a commissioning of hidraulic plant with 3 Toshiba Generator 48.2 MVA/unit, I would like to know How the dynamic balance will be done? Thanks, Bye There

Hi There We have 2 transformes in service which are operating more than 40 years, 13.8/138 Kv, Power 33 MVA, We are looking technical information to restrict the power, curves time vs decreasing power with time life, others. Bye

Hi there! In a coal power plant 135MW, electrochlorination is used to avoid growth organic fouling in sea water intake pipes and turbine steam condenser, there is a control of free chlorine in the outside of that condenser between 0.05 and 0.2 PPM like free chlorine. Is possible to shutdown...

Dears All In a coal boiler, I need help to estimate heat losses by external walls to calculate with more accuracy the boiler efficiency by losses, please, If you know some ways tell me. Bye There.

Hi there! In a coal power plant 135MW, electrochlorination is used to avoid growth organic fouling in sea water intake pipes and turbine steam condenser, there is a control of free chlorine in the outside of that condenser between 0.05 and 0.2 PPM like free chlorine. Is possible to shutdown...

Hi There I'm working in a coal power plant, we have a lot of dusty places, I would like to know what is the best way to clean the motors in service? Bye

Hi There Our Waste Water Treatment Plant recollect all drains from coal power plant incluiding septics, the treatment is coagulation, floculation, clarification and finally continuos sand filter, lately we have a lot of shut-downs of our sand filter, sand specification says 0.8 to 1.2 mm in...

Hi There I would like to about ¨guides for steam turbine overhaul¨, could you advise me plz. Bye

Hello to everybody I would like to know if is possible to calculate SO3 in flue gases of coal boiler having 1200 mg/Nm3, I would like to set my Dew Point knowing, so I need to know SO3 concentration. Bye there

Hi to Everybody I would like to know how to convert mg/Nm3 to PPM for a flue gas of coal boiler, the analizer in flue gases indicates +/-1200 mg/Nm3 SO2 at -0.28 KPa and 135°C. Bye There

Hi There! I'm not sure if this site is rigth to ask your advices, well I would like to know good marks and references to buy pumps to discharge chemicals like NaOH (25%), H2SO4 (98%) and FeCl3, We need fairly 4 m3/h and 4 meters in hight, any suggestion will be grateful received. Thanks Bye there.

Hi there Please, Could you advise me about this code of material of Body Control Valve A216WCB, or where can I find information about it? Bye There

Hi there We have MPS coal pulverizers, we are operating controlling the mix air-temperature between 65 to 75 °C in oulet temperature in a relation of 2.5 air/coal. Do you have some recomendation to this parameter to operate the pulverizer?, our problems are erosión of the parts, unburnt...