EV Supply Equipment EVSE – Key Updates in AS/NZS 4777.1:2024
AS/NZS 4777.1 is the installation standard specific to grid-connected inverter energy systems. This installation standard is in place to guarantee that any inverter-based energy systems, which can interface with an electricity network, are installed in a manner which is safe, predictable, and protective of...
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Ganged Devices – Key Updates Based on AS/NZS 4777.1:2024
Ganged devices mean multiple inverter energy system supplies that are isolated together by a single switching mechanism. The supplies may be mechanically or electrically arranged such that a single action can isolate them all simultaneously instead of each inverter having completely separate and independently...
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Simplified Main Switch Configuration – AS/NZS 4777.1:2024
If you have been involved with inverter energy systems over the last decade, you would have noticed how much the installations have changed. What used to be a single solar inverter connected to a residential switchboard has now grown into hybrid installations, batteries, EV...
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Interface Protection – Embracing the New AS/NZS 4777.1:2024
The 2024 update to AS/NZS 4777.1, Grid connection of energy systems via inverters – Installation requirements, is one of the most substantial changes to solar and inverter installation procedures in Australia in over a decade. This new standard has been made mandatory for new...
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AS/NZS 4777.1:2024 Standard – What’s New?
The AS/NZS 4777.1:2024 standard is now released! It introduces several significant changes that simplify regulations, clarify definitions, and enhance system safety. Here’s a summary of the key updates and their implications: Removal of Stand-Alone Mode Definition The new standard does not recognize the stand-alone...
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AS/NZS 4777.1:2024 – New Supply Type Definitions
The AS/NZS 4777.1:2024 standard introduces new definitions for supply types, aiming to simplify understanding and application. These big changes clarify how various power systems interact with the grid and manage supply. Here’s a breakdown of the new definitions: Normal Supply The “Normal Supply” is...
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AS/NZS 4777.1:2024 – Updates – IPSD and Vehicle to Grid V2G
The AS/NZS 4777.1:2024 standard introduces significant updates that impact both solar energy systems and electric vehicle (EV) integration. This new update includes important changes, particularly regarding new definitions: Inverter Power Sharing Devices (IPSD) and Vehicle-to-Grid (V2G) technology. Inverter Power Sharing Devices (IPSD) The 2024...
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Stand-Alone Mode in AS/NZS 4777.1 – Why is it Removed
AS/NZS 4777.1 is a part of the Australian standards that define the requirements for the connection of inverter energy systems, like rooftop solar with battery energy storage systems, to the grid. This standard specifically deals with the installation and safety aspects of systems that...
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Switchboard Cooling Solutions – Ensuring Optimal Performance
All electrical equipment produces heat. Protective devices, power breakers, busbars, contactors, relays, power supplies, PLCs, and drives all produce heat as they work. In many electrical systems, these devices are densely packed in metal cabinets with very little room for air to circulate. If...
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Routine Test Requirements in High Voltage Circuit Breakers
Routine Test Requirements in HV CBs Routine tests are essential in the manufacturing process of high voltage (HV) circuit breakers. These tests are conducted on each unit before delivery to ensure the quality, reliability, and performance of the circuit breakers. Routine tests verify the...
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