Politechnika Lubelska

Ćwiczenie 9

Temat: Układ przekładników napięciowych.

Data:

Wykonujący :

Celem ćwiczenia było powtórzenie wiadomości o przekładnikach napięciowych i poznanie ich układów.

1. Badanie układu „V”.

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Linia 30 kV

Warunki pracy

U1RS

U1ST

U1TR

U2RS

U2ST

U2TR

U1RS'

U1ST'

U1TR'

Praca normalna

Zanik U w T

Przepal. bezp w T I

Przepal. bezp w T II

Błędne połącz. przekł.

Zwarcie doziemne w T

Linia 110 kV

Warunki pracy

U1RS

U1ST

U1TR

U2RS

U2ST

U2TR

U1RS'

U1ST'

U1TR'

Praca normalna

Zanik U w T

Przepal. bezp w T I

Przepal. bezp w T II

Błędne połącz. przekł.

Zwarcie doziemne w T

2. Badanie układu gwiazdowego.

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Schemat pomiarowy:

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Linia 30 kV

Warunki pracy

U1RS

U1ST

U1TR

U1R

U1S

U1T

U2RS

U2ST

U2TR

U2R

U2S

U2T

Praca normalna

Zanik U w T

Przepal. bezp w T I

Przepal. bezp w T II

Błędne połącz. przekł.

Zwarcie doziemne w T

Linia 110 kV

Warunki pracy

U1RS

U1ST

U1TR

U1R

U1S

U1T

U2RS

U2ST

U2TR

U2R

U2S

U2T

Praca normalna

Zanik U w T

Przepal. bezp w T I

Przepal. bezp w T II

Błędne połącz. przekł.

Zwarcie doziemne w T

3. Układ gwiazdowy z uzwojeniem wtórnym połączonym w trójkąt.

Schemat pomiarowy:

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Linia 30 kV

Warunki pracy

U1RS

U1ST

U1TR

U1R

U1S

U1T

U2RS

U2ST

U2TR

U2R

U2S

U2T

Praca normalna

Zanik U w T

Przepal. bezp w T I

Przepal. bezp w T II

Błędne połącz. przekł.

Zwarcie doziemne w T

Linia 110 kV

Warunki pracy

U1RS

U1ST

U1TR

U1R

U1S

U1T

U2RS

U2ST

U2TR

U2R

U2S

U2T

Praca normalna

Zanik U w T

Przepal. bezp w T I

Przepal. bezp w T II

Błędne połącz. przekł.

Zwarcie doziemne w T

Wr1 M N m n Wr2

TR

Ws1

Ws2

M N m n

V2

V1

WR1 M N m n WR2

TR

M N m n

Ws1

Ws2

M N m n

V2

WZ

C0

V1

WR1 M N m n

TR

M N m n

M N m n

Ws1

V2

WZ

C0

V1