maszyny--, PWR ETK, Semestr V, Maszyny elektryczne - Laboratorium, sprawka maszyny


POLITECHNIKA

WROCŁAWSKA

Wydział Elektryczny

Skład grupy:

Marek Kucharski

Adam Rowiński

Błasiak Michał

Dariusz Filar

Kociemba Daniel

Karyś Mariusz

Rok studiów III

Grupa 11e

Semestr VI

Rok akademicki 1998/99

LABORATORIUM MASZYN ELEKTRYCZNYCH

Data wykonania

ćwiczenia

12.04.1999

TEMAT:

Badanie przesuwnika fazowego i regulatora indukcyjnego.

Ocena:

Cel ćwiczenia.

Poznanie możliwości zastosowania maszyny indukcyjnej pracującej na zahamowanym wirniku. Przykładem takiego stanu pracy jest przesuwnik fazowy oraz regulator indukcyjny.

2. Program ćwiczenia.

-Pomiar przekładni napięciowej.

-Sprawdzenie przesuwnika fazowego.

-Sprawdzenie zakresu regulacji regulatora indukcyjnego.

-Wyznaczenie sprawności regulatora.

3.Schematy połączeń .

  1. Układ do pomiaru przekładni napięciowej .

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  1. Układ do sprawdzania przesuwnika fazowego.

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c) Układ do pomiaru stanu jałowego regulatora .

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d) Układ do pomiaru stanu zwarcia regulatora.

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4.Tabele pomiarowe.

a) pomiar przekładni napięciowej .

L.p.

UAB1 [V]

UBC1 [V]

UCA1 [V]

UŚr1 [V]

UAB2 [V]

UBC2 [V]

UCA2 [V]

UŚr2 [V]

ϑ

1.

220

220

220

220

156

156

156

156

1,41

2.

160

160

160

160

114

112

113

113

1,42

3.

80

80

80

80

57

57

57

57

1,40

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  1. sprawdzanie przesuwnika fazowego .

dla Ψ = 0O ΔΨ = - Ψ

dla Ψ = 180O ΔΨ =180-Ψ

Połączenie wolt.V.

Zaciski zwarte

Urmin(Ψ = 0)

Urmax(Ψ =180o)

Ψ O

ΔΨ o

Ψ o

ΔΨ o

1A1-2A1

1B1-2B1

0

0

175

+5

1B1-2B1

1C1-2C1

0

0

185

-5

1C1-RC1

1A1-2A1

-3

+3

175

+5

c) Sprawdzenie zakresu regulacji regulatora

Odczytane z mierników wartości:

U2max = 512 [V]

U2min = 79 [V]

Wyliczone ze wzorów:

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Un = U1

  1. Sprawdzanie zakresu regulacji regulatora indukcyjnego

IA [A]

IB [A]

IC [A]

Io [A]

P1 [W]

P2 [W]

P0 [W]

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[W]

ΔPFe [W]

1,97

1,95

2,05

1,99

-140

290

155

33

122

P0 = P1 +P2 =155 [W]

ΔPFe = P0 - 3*I2o*Rw =155 - 33 = 122 [W]

-pomiar stanu zwarcia

UAB [V]

UBC [V]

UCA [V]

Uz [V]

IA [A]

IB [A]

IC [A]

IW [A]

P1 [W]

P2 [W]

Pz [W]

cosφ [-]

UR [V]


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