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Engineering AllOther (1379) suppose if oil in transformer is not used than what constructional change you will do,for insulation and cooling?
ABB,
2 6207EHV current carrying parts need to have smooth finish,then how can a 245kv GIS with emery finish can run so long?
1897oil sample dielectric test gives the insulation rupture voltage at 26 kv. is this transformer safe to be operated . The working voltage is 11 kv
2 4618We have one 500KVA transformer. We have tested REF relay and commissioned. After one and half year, due to some ground fault in one of the DB circuit Transformer tripped by REF relay. What will be cause and remedy. Please advise?
1 5381HARMONICS ARE ALWAYS IN INTEGER LIKE 2ND OR 3RD HARMONICS,NOT IN FRACTION LIKE 0.5 HARMONICS.....????????
2 4586what is resonance in electrical circuit and its effect? where we get high resonance and low resonance?
1 3299what is the formula for efficiency of francis turbine and generator for hydropower? what is best way to select francis turbine and generator?
HAL,
2508
Give an expression for average voltage of single phase semiconverters?
For a type a chopper (first quadrant), express the following variables as a function of vs, r and duty cycle in case the load is resistive average output voltage and current?
how calculate the bearing from two coordinates?
Do you have idea about various methods of production of gears ?
How delta connection in the primary of distribution transformer reduces harmonics?how delta connections reduces harmonics?Please answer me...Hope that question is correct.
How do we find the rating of a transformer, if it got burnt badly.
What is the control action?
How will a tester be sure that He’s covered the entire functionality in his Test case and not missed out anything?
what is machine tpm
WHAT IS THE DIff Between candidate key and primary key?
132/66kv sub-station procation ?
plese send me the oces/dgfs sylabus and previous year question pattern of electrical engg.?
WHERE CAN I GET THE PREVIOUS QUESTION PAPERS OF APGENCO FOR THE THE POST OF Tr.ASSISTANT ENGINEER(CIVIL)
Please asked me How calculate DCS controller memory.
Explain the types of satellite?