1 - AS 4777.3-2002 GRID CONNECTION OF ENERGY SYSTEMS VIA INVERTERS - GRID PROTECTION REQUIREMENTS
4 - PREFACE
5 - CONTENTS
6 - 1 SCOPE
6 - 2 APPLICATION
6 - 3 NORMATIVE REFERENCES
7 - 4 DEFINITIONS
7 - 4.1 Active anti-islanding protection
7 - 4.2 Electricity distribution network
7 - 4.3 Grid
7 - 4.4 Inverter
7 - 4.5 Inverter energy system
7 - 4.6 Islanding
7 - 4.7 Nominal grid voltage
7 - 4.8 Passive anti-islanding protection
7 - 4.9 Electro-mechanical switch
8 - 4.10 Uninterruptible power supply (UPS) system
8 - 5 GENERAL AND SAFETY REQUIREMENTS
8 - 5.1 Electrical safety
8 - 5.2 Connection to low-voltage distribution network
8 - 5.3 EMC
8 - 5.4 Voltage flicker
8 - 5.5 Impulse protection
8 - 5.6 Data logging and communications devices
8 - 6 GRID PROTECTION REQUIREMENTS
8 - 6.1 General
9 - 6.2 Disconnection device
9 - 6.3 Voltage and frequency limits (passive anti-islanding protection)
9 - 6.4 Limits for sustained operation
9 - 6.5 Active anti-islanding protection
10 - 6.6 Reconnection procedure
10 - 6.7 Security of protection settings
10 - 6.8 Compliance with grid protection requirements
11 - APPENDIX A - LIMITS FOR SUSTAINED OPERATION
12 - APPENDIX B - GRID PROTECTION DEVICE TESTS
12 - B1 GENERAL
12 - B2 UNDER- AND OVER-VOLTAGE TRIP SETTINGS AND RECONNECTION TEST
12 - B2.1 Tests
13 - B2.2 Criteria for acceptance
13 - B3 UNDER- AND OVER-FREQUENCY TRIP SETTINGS AND RECONNECTION TEST
13 - B3.1 Tests
14 - B3.2 Criteria for acceptance
14 - B4 GRID TRIP TEST
14 - B4.1 General
16 - B4.2 Grid trip test under load condition (a)
16 - B4.3 Grid trip test under load condition (b)
17 - B4.4 Grid trip test under load condition (c)