Controles De Motores

INSTALLATION AND

MAINTENANCE MANUAL

SYNCHRONOUS GENERATORS

G LINE

Transforming energy

into solutions

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SYNCHRONOUS GENERATORS

FOREWORD

Weg is pleased to present you the Installation and Maintenance Manual for the G line Generators.

For a satisfactory operation of the generator, and before running it, Weg strongly recommends to

read this Manual carefully.

All installation, operation and maintenance details must be followed accordingly. In case of any

further doubt, please contact Weg.

These operations require specific care so as to guarantee perfect operation of the equipment along

with extended life time.

The INSTALLATION AND MAINTEANCE MANUAL FOR G LINE GENERATORS is intended to assist

those who deal with electric machines making their task easier and preserving the operator from any

eventual trouble.

WEG INDÚSTRIAS S.A. – Máquinas

---- IMPORTANT ----

READ CAREFULLY ALL INSTRUCTIONS INCLUDED IN THIS MANUAL TO

ENSURE SAFE AND CONTINUOUS OPERATION TO THE EQUIPMENT.

9300.0015 I/6

October 2005

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SYNCHRONOUS GENERATORS

TABLE OF CONTENTS

1. NOMENCLATURE................................................................................................................5

2. SAFETY INFORMATION ...................................................................................................... 6

3. GENERAL INSTRUCTIONS................................................................................................... 7

3.1. APPLICATION...............................................................................................................................7

3.2. TRANSPORTATION.......................................................................................................................7

3.3. RECEIVING ..................................................................................................................................7

3.4. STORAGE.....................................................................................................................................7

3.5. HANDLING ...................................................................................................................................8

3.6. INSULATION RESISTANCE ...........................................................................................................8

4. OPERATION PRINCIPLE ................................................................................................... 10

5. VOLTAGE REGULATOR...................................................................................................... 12

5.1. VOLTAGE REGULATION..............................................................................................................12

5.2. MAINTAINING SHORT-CIRCUIT CURRENT .................................................................................12

6. INSTALLATION ................................................................................................................ 13

6.1. COOLING SYSTEM......................................................................................................................13

6.2. ROTATION DIRECTION..............................................................................................................13

6.3. DEGREE OF PROTECTION..........................................................................................................13

6.4. AGGRESSIVE ENVIRONMENT (MARINE DUTY GENERATORS).....................................................13

7. MECHANICAL ASPECTS .................................................................................................... 14

7.1. BASES / FOUNDATIONS.............................................................................................................14

7.2. ALIGNMENT/ LEVELING .............................................................................................................14

7.3. COUPLING..................................................................................................................................14

7.3.1. Double Bearing Generators (B5/B3T) ................................................................................... 14

7.3.2. Single Bearing Generators (B15T)........................................................................................ 15

8. ELECTRICAL ASPECTS ...................................................................................................... 17

8.1. CONNECTION.............................................................................................................................17

8.1.1. Main Connection ............................................................................................................... 17

8.1.2. Electronic Voltage Regulator ............................................................................................... 17

8.1.3. Protection and Accessories ................................................................................................. 17

8.1.4. Identification of terminals................................................................................................... 17

8.1.5. Connection Diagrams......................................................................................................... 17

8.2. MAIN CONNECTION DIAGRAMS .................................................................................................18

8.2.1. Possible Connections for Three-phase 12 Terminal Generators 3 Voltages (160 up to 315

frames) .................................................................................................................................... 18

8.2.2. Possible Connections for 6 Terminal Generators 1 Voltage (400 up to 560 frames)...................... 19

8.2.3. Possible Single phase Connections for 12 Terminal Three-phase Generators .............................. 20

8.2.4. Generator connections with voltage regulator........................................................................ 20

9. GENERATOR PROTECTIONS.............................................................................................. 21

9.1. THERMAL PROTECTIONS ...........................................................................................................21

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SYNCHRONOUS GENERATORS

9.2. SPACE HEATERS ........................................................................................................................21

9.3. AUXILIARY

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