1 Scope
This part of GB/T 2820 specifies the terms, design and performance arising out of the combination of a Reciprocating Internal Combustion (RIC) engine and an Alternating Current (a.c.) generating sets when operating as a unit.
It applies to a.c. generating sets driven by RIC engines for land and marine use, excluding generating sets used on aircraft or to propel land vehicles and locomotives.
For some specific applications (e.g. essential hospital supplies and high-rise buildings) supplementary requirements may be necessary. The provisions of this part should be regarded as a basis for establishing any supplementary requirements.
For a.c. generating sets driven by other reciprocating-type prime movers (e.g. steam engines), the provisions of this part should be used as a basis for establishing these requirements.
2 Normative References
The following normative documents contain provisions which, through reference in this text, constitute provisions of GB/T 2820. For dated references, subsequent amendments (excluding corrections), or revisions, of any of these publications do not apply to this part. However parties to agreements based on this part are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies.
GB 755-2008 Rotating Electrical Machines - Rating and Performance (IEC 60034-1: 2004, IDT)
GB/T 2820.1-2009 Reciprocating Internal Combustion Engine Driven Alternating Current Generating Sets - Part 1: Application, Ratings and Performance (ISO 8528-1:2005, IDT)
GB/T 2820.2-2009 Reciprocating Internal Combustion Engine Driven Alternating Current Generating Sets - Part 2: Engines (ISO 8528-2:2005, IDT)
GB/T 2820.3-2009 Reciprocating Internal Combustion Engine Driven Alternating Current Generating Sets - Part 3: Alternating Current Generators for Generating Sets (ISO 8528-3:2005, IDT)
GB/T 6072.4-2000 Reciprocating Internal Combustion Engines - Performance - Part 4: Speed Governing (idt ISO 3046-4:1997)
GB/T 6072.5-2003 Reciprocating Internal Combustion Engines - Performance - Part 5: Torsional Vibrations (ISO 3046-5:2001, IDT)
ISO 8528-12:1997 Reciprocating Internal Combustion Engine Driven Alternating Current Generating Sets - Part 12: Emergency Power Supplies to Safety Services
3 Symbols, Terms and Definitions
For indications of technical data for electrical equipment, IEC uses the term "rated" and the subscript "N". For indications of technical data for mechanical equipment, ISO uses the term "declared" and the subscript "r". Therefore, in this part, the term "rated" is applied only to electrical items. Otherwise, the term "declared" is used throughout.
Foreword i
1 Scope
2 Normative References
3 Symbols, Terms and Definitions
4 Other Regulations and Additional Requirements
5 Frequency Characteristics
5.1 General
6 Overfrequency Characteristics
7 Voltage Characteristics
8 Sustained Short-circuit Current
9 Factors Affecting Generating Set Performance
9.1 General
9.2 Power
9.3 Frequency and Voltage
9.4 Load Acceptance
10 Cyclic Irregularity
11 Starting Characteristics
12 Stop Time Characteristics
13 Parallel Operation
13.1 Active Power Sharing
13.2 Reactive Power Sharing
13.3 Influence on Parallel-operating Behaviour
14 Rating Plates
15 Further Factors Influencing Generating Set Performance
15.1 Starting Methods
15.2 Shutdown Methods
15.3 Fuel and Lubrication Oil Supply
15.4 Combustion Air
15.5 Exhaust System
15.6 Cooling and Room Ventilation
15.7 Monitoring
15.8 Noise Emission
15.9 Coupling
15.10 Vibration
15.11 Foundations
16 Performance Class and Operating Limit Values
Bibliography
