Standard
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AS 4777.3-2005
[Available Superseded]Grid connection of energy systems via inverters, Part 3: Grid protection requirements
Specifies grid protection requirements for inverter energy systems with ratings up to 10 kVA for single-phase, or 30 kVA for three-phase, systems and intended for connection to the low-voltage electricity distribution network (grid).
Published: 20/05/2005
Pages: 13
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
1 Scope
2 Normative references
3 Definitions
4 General and safety requirements
4.1 General
4.2 Electrical safety
4.3 Connection to low-voltage distribution network
4.4 Voltage flicker
4.5 Impulse protection
4.6 Data logging and communications devices
5 Grid protection requirements
5.1 General
5.2 Disconnection device
5.3 Voltage and frequency limits (passive anti-islanding protection)
5.4 Limits for sustained operation
5.5 Active anti-islanding protection
5.6 Reconnection procedure
5.7 Security of protection settings
5.8 Compliance with grid protection requirements
Appendix A
Appendix B
B1 General
B2 Under-and over-voltage trip settings and reconnection test
B2.1 Tests
B2.2 Criteria for acceptance
B3 Under- and over-frequency trip settings and reconnection test
B3.1 Tests
B3.2 Criteria for acceptance
B4 Grid trip test
B4.1 General
B4.2 Grid trip test under load condition (a)
B4.3 Grid trip test under load condition (b)
B4.4 Grid trip test under load condition (c)
Cited references in this standard
[Withdrawn]
Electrical Relays - Part 5: Insulation coordination for measuring relays and protection equipment - Requirements and tests
[Superseded]
Electromagnetic compatibility (EMC), Part 3.5: Limits — Limitation of voltage fluctuations and flicker in low-voltage power supply systems for equipment with rated current greater than 16 A
[Superseded]
Electromagnetic compatibility (EMC), Part 3.3: Limits — Limitation of voltage changes, voltage fluctuations and flicker in public low-voltage supply systems, for equipment with rated current ≤16 A per phase and not subject to conditional connection
[Available Superseded]
Information technology equipment — Safety, Part 1: General requirements (IEC 60950-1, Ed. 2.2 (2013), MOD)
[Current]
Approval and test specification — General requirements for electrical equipment
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