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electro mécanique
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LABIB KOOLI's image
Question added by LABIB KOOLI Director of the Sectoral Center for Training in Hotel Technologies at Southern Hammamet Tunisian Vocational Training Agency (ATFP)
10 years ago

What is the main difference between a single phase transformer and a three phases one ?‎

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Question added by LABIB KOOLI Director of the Sectoral Center for Training in Hotel Technologies at Southern Hammamet Tunisian Vocational Training Agency (ATFP)
10 years ago

What do you know about a perfect transformer ?‎

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Question added by LABIB KOOLI Director of the Sectoral Center for Training in Hotel Technologies at Southern Hammamet Tunisian Vocational Training Agency (ATFP)
10 years ago

A voltage transformer transforms the frequecy of the power grid ? True or false ? Explain‎

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Question added by LABIB KOOLI Director of the Sectoral Center for Training in Hotel Technologies at Southern Hammamet Tunisian Vocational Training Agency (ATFP)
10 years ago

In the power electronic field , what are an IGBT & a MOSFET ?‎

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Question added by LABIB KOOLI Director of the Sectoral Center for Training in Hotel Technologies at Southern Hammamet Tunisian Vocational Training Agency (ATFP)
10 years ago

A DC motor starts to over speeding, can you find out the why ?‎

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Question added by LABIB KOOLI Director of the Sectoral Center for Training in Hotel Technologies at Southern Hammamet Tunisian Vocational Training Agency (ATFP)
10 years ago

What do you know about the full -controlled rectifiers ?‎

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Question added by akram aggoune sous directeur spa
10 years ago

Quel est le rôle de l’ingénieur dans l'entreprise industriel et leur attaches?‎

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Question added by LABIB KOOLI Director of the Sectoral Center for Training in Hotel Technologies at Southern Hammamet Tunisian Vocational Training Agency (ATFP)
10 years ago

Rectifiers and inverters how they are different ?‎

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A voltage transformer transforms the frequecy of the power grid ? True or false ? Explain‎

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Answer added by  Adnan Yasin, Asst.Electrical Engineer, standard engineering pvt ltd
10 years ago

False. Because Transformer transform same frequency  as power gird supplied

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Maintenance Engineering
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A DC motor starts to over speeding, can you find out the why ?‎

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Answer added by  Deleted user
10 years ago

The armature resistance is very low.At the starting of a DC motor since there is no back EMF in the armature,the entire terminal voltage acts across the armature. Hence,t ... See More

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