1PPT_1306_001_03 Released: 2007-07-31

Generator systems

Service Training

Approval:PNO

2PPT_1306_001_03 Released: 2007-07-31

Suppliers & types

Generator layout - V80

Mechanical design - V80

Electrical design and connections - V80

Generator layout - V82

Basic power generation

Mechanical design - V82

Electrical design and connections - V82

Generator - V90

Generator troubleshooting

Safety

Vestas Turbine - 360° view

Generator systemsBasic power generation

3PPT_1306_001_03 Released: 2007-07-31

Rotor / stator

Generator-alternating current (AC)

Generator-direct current (DC)

Basic power generation

4PPT_1306_001_03 Released: 2007-07-31

Electromagnetism

Coil 1

Basic power generation

˜

˜

5PPT_1306_001_03 Released: 2007-07-31

AC induction

Coil 1

Coil 2

Basic power generation

˜

˜

6PPT_1306_001_03 Released: 2007-07-31

3 phases electricityBasic power generation

L1

L2L3

L1

L2L3

Star connection

Delta connectionAlternating current

3 phase alternating current

7PPT_1306_001_03 Released: 2007-07-31

2 pole stator

U1

U2

V1

V2

W1

W2

60 x frequencynumber of pole pairs

rpm =

Rotational speedStator coils

S

N

Basic power generation

8PPT_1306_001_03 Released: 2007-07-31

4 pole stator

U1

60 x frequencynumber of pole pairs

rpm =

Rotational speedStator coils

U2

V1

V2W1

W2

S

N

S N

Basic power generation

9PPT_1306_001_03 Released: 2007-07-31

Synchronisation to gridGenerator principles

Voltage

Phase sequence

Grid

Generator

Phase position

Frequency

L1L2

L3

L1

L2 L3

L1

L2 L3

10PPT_1306_001_03 Released: 2007-07-31

Motor Generator

SlipGenerator principles

Slip % Slip %0

Current flow

+-

Synchronous

RPMRPM

11PPT_1306_001_03 Released: 2007-07-31

Suppliers & types

Generator layout - V80

Mechanical design - V80

Electrical design and connections - V80

Generator layout - V82

Basic power generation

Mechanical design - V82

Electrical design and connections - V82

Generator - V90

Generator troubleshooting

Safety

Vestas Turbine - 360° view

Generator systemsSuppliers & types

12PPT_1306_001_03 Released: 2007-07-31

Generator suppliersSuppliers & types

13PPT_1306_001_03 Released: 2007-07-31

Suppliers & types

Generator layout - V80

Mechanical design - V80

Electrical design and connections - V80

Generator layout - V82

Basic power generation

Mechanical design - V82

Electrical design and connections - V82

Generator - V90

Generator troubleshooting

Safety

Vestas Turbine - 360° view

Generator systemsV80 Generator layout

14PPT_1306_001_03 Released: 2007-07-31

Generator - V80V80 Generator layout

Suppliers

15PPT_1306_001_03 Released: 2007-07-31

Suppliers & types

Generator layout - V80

Mechanical design - V80

Electrical design and connections - V80

Generator layout - V82

Basic power generation

Mechanical design - V82

Electrical design and connections - V82

Generator - V90

Generator troubleshooting

Safety

Vestas Turbine - 360° view

Generator systemsV80 Electrical design

16PPT_1306_001_03 Released: 2007-07-31

Electrical design - V80V80 Electrical design

Stator

U1 V1 W1

U2 V2 W2

Rotor

Three phase asynchronous generator

Voltage: 690 V

Frequency: 50 / 60 Hz

Number of poles: 4

Double feed

Air to air cooler

Technical data

K2

L2

M2

K1

L1

M1

17PPT_1306_001_03 Released: 2007-07-31

Terminal box V80 VRCC, stator

U1 V1 W1

U2 V2W2

V80 Electrical design

18PPT_1306_001_03 Released: 2007-07-31

Terminal box V80 VCS, stator

U1 V1 W1

U2 V2W2

V80 Electrical design

19PPT_1306_001_03 Released: 2007-07-31

Terminals V80, slip rings

L1 L2 L3 PE

VCS / VRCC

V80 Electrical design

20PPT_1306_001_03 Released: 2007-07-31

Slip rings components - V80V80 Electrical design

21PPT_1306_001_03 Released: 2007-07-31

Slip rings adjustment - V80V80 Electrical design

22PPT_1306_001_03 Released: 2007-07-31

Temperature measuring V80 generator

U2 V2 W2

U1 V1 . W1

t° t°

t°

t°

t°

t°

t°

t°

D-end ND-end

V80 Electrical design

23PPT_1306_001_03 Released: 2007-07-31

Temperature measuring V80 generator

7. Gen Ph1 7° 87° 122°

6. Gen1 Bear 5° 94° 112°

8. Gen Ph2 7° 89° 123° 9. Gen Ph3 6° 87° 121°

Menu 6. temperatures

V80 Electrical design

24PPT_1306_001_03 Released: 2007-07-31

Suppliers & types

Generator layout - V80

Mechanical design - V80

Electrical design and connections - V80

Generator layout - V82

Basic power generation

Mechanical design - V82

Electrical design and connections - V82

Generator - V90

Generator troubleshooting

Safety

Vestas Turbine - 360° view

Generator systemsV80 Mechanical design

25PPT_1306_001_03 Released: 2007-07-31

Mechanical design - V80V80 Mechanical design

Bearings

1.

1. Wound stator + frame

2. Wound rotor

3. Internal cover

4. Ball bearing

5. End shield

6. External cover

7. Slip ring arrangement

8. Slip ring chamber

9. Air to air cooler

2.

9.

8.7.6.

5.

4.

5.

3.6. 4. 3.

26PPT_1306_001_03 Released: 2007-07-31

Slip ring fans - V80 VCSV80 Mechanical design

1. Air filter

2. Internal fan

3. Air manifold

4. Heating element

5. External fan

6. Outlet filter

1.

2.

4.

5.

3.

6.Option

27PPT_1306_001_03 Released: 2007-07-31

Generator lubricationV80 Mechanical design

Supply

Pump start

> 18.5 Hour

Temperature

> -5°

Lubrication sequence

Stop

28PPT_1306_001_03 Released: 2007-07-31

Suppliers & types

Generator layout - V80

Mechanical design - V80

Electrical design and connections - V80

Generator layout - V82

Basic power generation

Mechanical design - V82

Electrical design and connections - V82

Generator - V90

Generator troubleshooting

Safety

Vestas Turbine - 360° view

Generator systemsV82 Generator layout

29PPT_1306_001_03 Released: 2007-07-31

Generator - V82V82 Generator layout

Suppliers

30PPT_1306_001_03 Released: 2007-07-31

Suppliers & types

Generator layout - V80

Mechanical design - V80

Electrical design and connections - V80

Generator layout - V82

Basic power generation

Mechanical design - V82

Electrical design and connections - V82

Generator - V90

Generator troubleshooting

Safety

Vestas Turbine - 360° view

Generator systemsV82 Electrical design

31PPT_1306_001_03 Released: 2007-07-31

Electrical design - V82V82 Electrical design

Stator

2U1 2V1 2W1

2U2 2 V2 2W2

Rotor

Three phase asynchronous generator

Voltage: 690 V

Frequency: 50 / 60 Hz

Number of poles: 4 / 6

Water cooled

Technical data

U1 V1 W1

U2 V2 W2

g2

G1

32PPT_1306_001_03 Released: 2007-07-31

Terminal box V82, statorV82 Electrical design

33PPT_1306_001_03 Released: 2007-07-31

Temperature measuring V82 generator

U2 V2 W2

U1 V1 . W1

t° t°

t° t°

t°

t°

t°

D-end ND-end

V82 Electrical design

t°

34PPT_1306_001_03 Released: 2007-07-31

Temperature measuring V82 generatorV82 Electrical design

Generator G temperature 83° Generator G temperature 67°

Generator bearing front, temperature 72°

Generator bearing rear, temperature 72°

35PPT_1306_001_03 Released: 2007-07-31

Suppliers & types

Generator layout - V80

Mechanical design - V80

Electrical design and connections - V80

Generator layout - V82

Basic power generation

Mechanical design - V82

Electrical design and connections - V82

Generator - V90

Generator troubleshooting

Safety

Vestas Turbine - 360° view

Generator systemsV82 Mechanical design

36PPT_1306_001_03 Released: 2007-07-31

Mechanical design - V82V82 Mechanical design

Bearings

1. Wound stator + frame

2. Wound rotor

3. Internal cover

4. Ball bearing

5. End shield

6. External cover

7. Cooling fan

2. 6.

5.

4.

5.

3.6. 4. 3.

1.

7.

37PPT_1306_001_03 Released: 2007-07-31

Generator lubricationV82 Mechanical design

TOI-II

Pump start

> 18.7hour

Temperature

> -10°

Lubrication sequence

Stop

Lubrication

Sequence OK time < 5 sec.

Lubrication

Sequence OK time > 5 sec.

Lubrication sequence >10 min

38PPT_1306_001_03 Released: 2007-07-31

Suppliers & types

Generator layout - V80

Mechanical design - V80

Electrical design and connections - V80

Generator layout - V82

Basic power generation

Mechanical design - V82

Electrical design and connections - V82

Generator - V90

Generator troubleshooting

Safety

Vestas Turbine - 360° view

Generator systemsV90 Generator

39PPT_1306_001_03 Released: 2007-07-31

Generator – V90V90 Generator

Three phase asynchronous generator

Voltage: 1000 V

Frequency: 50 / 60 Hz

Number of poles: 4

Double feed

Water cooled

40PPT_1306_001_03 Released: 2007-07-31

Suppliers & types

Generator layout - V80

Mechanical design - V80

Electrical design and connections - V80

Generator layout - V82

Basic power generation

Mechanical design - V82

Electrical design and connections - V82

Generator - V90

Generator troubleshooting

Safety

Vestas Turbine - 360° view

Generator systemsGenerator troubleshooting

41PPT_1306_001_03 Released: 2007-07-31

U1

U2

V1

V2

W1

W2

Generator troubleshooting

Stator

42PPT_1306_001_03 Released: 2007-07-31

Generator troubleshooting

U1

U2

V1

V2

W1

W2

Motor tester

Megger

Troubleshooting stator

43PPT_1306_001_03 Released: 2007-07-31

VRCC / VCS Rotor

Motor tester

Megger

Troubleshooting rotorGenerator troubleshooting

44PPT_1306_001_03 Released: 2007-07-31

Damage reportGenerator troubleshooting

45PPT_1306_001_03 Released: 2007-07-31

Suppliers & types

Generator layout - V80

Mechanical design - V80

Electrical design and connections - V80

Generator layout - V82

Basic power generation

Mechanical design - V82

Electrical design and connections - V82

Generator - V90

Generator troubleshooting

Safety

Vestas Turbine - 360° view

Generator systemsSafety

46PPT_1306_001_03 Released: 2007-07-31

Safety - V80

Q7

Slip rings

Q8

Stator

Safety warning Rotor Lock

Safety

47PPT_1306_001_03 Released: 2007-07-31

Wrong adjustment of Q8 breaker

Q8 breaker

Safety warning

Safety

48PPT_1306_001_03 Released: 2007-07-31

Safety - V80

Safety warning

Safety

49PPT_1306_001_03 Released: 2007-07-31

Safety - V82

F1

Stator

Safety warning Rotor Lock

Safety

50PPT_1306_001_03 Released: 2007-07-31

The End