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@scotty, thank you

scotty, they asked to asses for everything, the winding, the coil , the oil. etc

@alehman : do you know what company is that, because it must be rare that a company have that kind of test equipment. i search on internet and find doble company one of the company that have service for assesment, does anyone know the other company?

in Indonesia

Dear All, does anyone know where can i get assesment for large transformator 500 MVA, 500KV to 22 KV? thank you

Dear All, does anyone know where i can get service for assesment generator up to 200MW and and transformator up to 500MVA ?

Dear All, i would like to ask how to know the breakdown voltage value of enamelled single daglass covered copper strip?can i use baker hipot test for this? thank you, regards, Marten

electricpete,ratcher and zlatkodo thank you.. regards, Marten

Dear All, if i have data for a motor : number of coil ,turn/coil,pitch,AGD,CMA,stator core length,core diameter, connection,slots, wire size, is it possible for me to calculate the weight of copper for the wire from those data?by the way this is for low voltage motor thank you, regards, Marten

@zogzog and @prc : thank you

Muthu, thank you very much. best regards, Marten

Muthu, thank you very much for your opinion, if we do the PI first and the result was not good , can we proceed to hipot test?because in my aware the PI value can be bad because of dirt in insullation? thank you, regards, Marten

@alehman : its oil transformator @pwrengrds : the connection was Dyn5, the winding insullation just tested @zogzog: yes we have disconnect the neutral. for the winding insullation resistance 400 Volt how many voltage i should inject to know the winding insullation value? does anyone have the...

Dear Mr. Muthu, i'm planning to do hipot test and surge test, need your oppinion on this thank you, regards, Marten

hi everyone, i have a motor 3 kv 125 kw, the motor was place in a room and the room accidently was on fire. after the fire, we have checked for the winding insullation resistance and the result was 2500 MegOhm, my question is what next step do i must do next to ensure the motor is still ok to...

hi every one, i need help on my transformer, we have measured the value winding insullation resistance of secondary-ground of our transformator and the value was 0.1 MegOhm, the transformator is 1600 KVA, primer 20 KV to secunder 400 Volt, my question is , is it possible to have 0.1 MegOhm...

the motor not rewound but just being overhaull... do you know the no load standart for 180 amp machine 3,3 kv? the bearing is metal bearing not ball bearing... what could be the possible the cause of the first start up and down ampere for first 10 second and the rought sound?

the three phases ampere is balance but the ampere is up and down for 10second for first start...17 24 40 24 40 17 sequential

Hi Guys, i have a trouble with my motor with name plate bellow : Voltage : 3300 V RPM : 3000 Ampere : 180 Ampere HP : 1250 HP the problem is when i each time i start the motor the ampere is not stabel for about 15 second around 17-24-40 ampere and after that...

anyone???