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3

(Vector Group) 3

1. 3

2. Vector Group 3

3

(Star) (Wye ; Y) (Delta ; )

(Vector Group)

Vector Group Yy0, Yd1, Dy5, Dd6, Yz11

(HV)

(LV)

HV LV

LV

HV

Y, y (Star)

D, d (Delta)

Z, z (Zigzag)

0, 1, 5, 6 LV HV

0, 1, 5, 6

. . HV . 150

3.1

3-1

30 HV

150

LV

HV

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3.1 . 30

LV HV 30 0 , 30 , 150 , 180 , 330

HV

0 ( 12) . LV (

HV) 150 5 (150 /30 = 5) . HV

LV Vector Group Dy5

Vector Group 3.1

3.1 Vector Group 3

Vector Group

0 Yy0, Dd0, Dz0

1 Yd1, Dy1, Yz1

5 Yd5, Dy5, Yz5

6 Yy6, Dd6, Dz6

11 Yd11, Dy11, Yz11

3.1

- Yy0 HV LV LV

HV

- Yz1 HV LV LV

HV 1x30 = 30

- Dd6 HV LV LV

HV 6x30 = 180

- Yd11 HV LV LV

HV 11x30 = 330

3

11

11

( )

3.2 Vector Group (

)

3-2

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3.2 Vector Group ( )

Yy0 (Phase Shift 0 ) Dd0 (Phase Shift 0 )

Yy6 (Phase Shift -180 ) Dd6 (Phase Shift -180 )

Yd5 (Phase Shift -150 ) Dy5 (Phase Shift -150 )

Yd11 (Phase Shift -330 ) Dy11 (Phase Shift -330 )

A

C B

A B C

a b ca

c

b

3-3

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3.2 Vector Group ( )

Yd1 (Phase Shift -30 ) Dy1 (Phase Shift -30 )

3.2 HV LV

3.2 .

( )

3.2

3.2

3-4

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Vector Group

3 –

1. 3

2. 3 ,

, ,

(V) 300 160 160 360 160

3. ( ) 10 V : 1 mm

(V) 300 160 160 360 160

(mm) 30 16 16 36 16

4.

30 . 0 ( 12 ) .

( ) .

3-5

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5. (16 .)

(36 .)

B-b =

16

mm

6. (16 .)

(16 .)

7. , .

( ) .

3-6

A

C B

a

b

c

aA

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.

330

330 /30 = 11 11

Vector Group Dy11

.

0 ( 12 )

11 Vector Group Dy11

3-7

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– ………………………………………………………………. ……………………………………….

…………………… ………………… ……………………………………………

– 1. AC Power Supply 3 - phase 1

2. 3 1

3. AC Voltmeter 2

3.1 Vector Group 3 Vector Group 3

1. 3 EXP3.1.1

1 5 V : 1 mm)

3-8

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2 5 V : 1 mm)

3 5 V : 1 mm)

EXP3.1.1 Vector Group

3-9

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2. 1 EXP3.1.2

A

Transformer3-

B

C

a

c

bY-

EXP3.1.2 Vector Group 3

3. 3 380 V(line to line) ,

, , EXP3.1.1

4. 5 V : 1 mm

EXP3.1.1

EXP3.1.1

(V)

(mm)

5. EXP3.1.1 Vector Group

Vector Group ……………………………………

3-10

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1. Vector Group 3 ( )

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2. Vector Group ………………………………………………………………………………………………

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3. Vector Group

- Dd0 ………………………………………………………………………………………………………………………

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- Dy5 ………………………………………………………………………………………………………………………

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