PI Manufacturing AC generators - Manual (Page 4)

CONTENTS
SAFETY PRECAUTIONS
FOREWORD
1
CONTENTS 2&3
SECTION 1 INTRODUCTION 4
1.1 INTRODUCTION 4
1.2 DESIGNATION 4
1.3 SERIAL NUMBER LOCATION
AND IDENTITY NUMBER LOCATION 4
1.4 RATING PLATE AND CE MARKING 4
SECTION 2 PRINCIPLE OF OPERATION 5
2.1 SELF-EXCITED AVR CONTROLLED GENERATORS 5
2.2 PERMANENT MAGNET GENERATOR (PMG) EXCITED -
AVR CONTROLLED GENERATORS 5
2.3 AVR ACCESSORIES 5
2.4 TRANSFORMER CONTROLLED GENERATORS 5
SECTION 3 APPLICATION OF THE GENERATOR 6
SECTION 4 INSTALLATION - PART 1 8
4.1 LIFTING 8
4.2 ASSEMBLY 8
4.2.1 NO FOOT OPTION 8
4.2.2 TWO BEARING GENERATORS 9
4.2.3 SINGLE BEARING GENERATORS 9
4.3 EARTHING 9
4.4 PRE-RUNNING CHECKS 9
4.4.1 INSULATION CHECK 9
4.4.2 DIRECTION OF ROTATION 10
4.4.3 VOLTAGE AND FREQUENCY 10
4.4.4 AVR SETTINGS 10
4.4.4.1 TYPE SX460 AVR 10
4.4.4.2 TYPE SX440 AVR 10
4.4.4.3 TYPE SX421 AVR 11
4.4.4.4 TYPE MX341 AVR 11
4.4.4.5 TYPE MX321 AVR 11
4.4.5 TRANSFORMER CONTROLLED
EXCITATION SYSTEM (Series 5) 12
4.5 GENERATOR SET TESTING 12
4.5.1 TEST METERING/CABLING 12
4.6 INITIAL START-UP 12
4.7 LOAD TESTING 13
4.7.1 AVR CONTROLLED GENERATORS - AVR ADJUSTMENTS 13
4.7.1.1 UFRO (Under Frequency Roll Off)
(AVR Types SX460, SX440, SX421, MX341 and MX321) 13
4.7.1.2 EXC TRIP (Excitation Trip) 14
4.7.1.3 OVER/V (Over Voltage) 14
4.7.1.4 TRANSIENT LOAD SWITCHING ADJUSTMENTS 14
4.7.1.5 RAMP BUILD UP TIME 15
4.7.2 TRANSFORMER CONTROLLED GENERATORS -
TRANSFORMER ADJUSTMENT 15
4.8 ACCESSORIES 15
SECTION 5 INSTALLATION - PART 2 16
5.1 GENERAL 16
5.2 GLANDING 16
5.3 EARTHING 16
5.4 PROTECTION 16
5.5 COMMISSIONING 16