IEC TS 62257-7-3:2008

FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Introduction to generator sets
   4.1 Generator set system
   4.2 Generator set application in rural electrification
        systems
   4.3 Resource assessment
5 Selection and erection
   5.1 General
   5.2 Selection requirements
        5.2.1 Power quality
        5.2.2 Generator set sizing
        5.2.3 Generator set type
        5.2.4 Derating factors
        5.2.5 Starting system
        5.2.6 Control systems
        5.2.7 Noise issues
        5.2.8 Environmental issues
   5.3 Erection
        5.3.1 Shipping
        5.3.2 Design of the erection site
        5.3.3 Installation requirements
6 Safety
   6.1 General
   6.2 Electrical issues
        6.2.1 General requirements
        6.2.2 Connection system to the application
        6.2.3 Power cables
        6.2.4 Neutral system
        6.2.5 Earthing
        6.2.6 Overcurrent protection
        6.2.7 Residual Current protection Device (RCD)
        6.2.8 Isolating devices
   6.3 Mechanical issues
        6.3.1 Vibration
        6.3.2 Protection from mechanical damage
        6.3.3 Protection from moving parts
   6.4 Thermal issues
   6.5 Fire risk
7 Acceptance
   7.1 General
   7.2 Conformity of the generator set to the identification
        file
   7.3 Conformity of the generator set system to the GS
   7.4 Acceptance process
        7.4.1 Preparation of the generator set for
              commissioning
        7.4.2 Commissioning inspection of the generator
              set system
        7.4.3 Commissioning tests of the generator set
              system
        7.4.4 Test file
8 Operation and maintenance
   8.1 Access to the generator set
   8.2 Operation process
   8.3 Monitoring
   8.4 Maintenance schedule
9 Replacement
10 Marking
   10.1 Generator set
   10.2 Engine
   10.3 Alternator
   10.4 Shutdown apparatus
11 Documentation
   11.1 General
   11.2 Installation
   11.3 Operation
   11.4 Inspection and maintenance
Annex A (informative) Generator set classification
        criteria
Annex B (informative) Identification file
Annex C (informative) Maintenance schedule
Annex D (informative) Example of commissioning records
        sheet
Bibliography

IEC/TS 62257-7-3:2008(E) specifies the general requirements for the selection, sizing, erection and operation of generator sets in decentralized rural electrification systems. Applies to all low voltage combustion engine electricity generator sets with a rated power up to 100 kVA, and designed for supplying electrical power to isolated sites used in systems as described in IEC/TS 62257-2.