Neutral Voltage Displacement – A Signal for Protection Relay
Neutral Voltage Displacement (NVD) is one of the important protective mechanisms in electrical systems to detect single-phase-to-ground faults. The shift in the neutral voltage relative to the ground potential is monitored for fault conditions, and appropriate action is initiated by protection relays to protect...
View Now
Does Your Switchboard Need to Be Upgraded Now?
An upgrade of the electrical switchboard is a crucial task to maintain the safety, efficiency, and compliance of your building’s electrical system. A switchboard is the central distribution point for electricity in a property, and an outdated or overloaded system can pose great risks,...
View Now
Energy Sustainability Reporting Requirements Explained
The Corporations Act 2001 (Corporations Act) stipulates in s296A(1) that the sustainability report for a financial year must include: The year’s climate statements; Any remarks made regarding the climate statements; The directors’ statement regarding the notes and statements. Statements on the Climate Section 336A...
View Now
What are the differences between PLC, HMI, and SCADA?
A Programmable Logic Controller, or PLC, is a rugged industrial computer designed for real-time control. It interfaces directly with sensors and actuators, executing control logic typically written in ladder logic, structured text, or function block diagrams. PLCs are built to withstand the harsh conditions...
View Now
What Is a PLC? — Definition and Role in Automation
A Programmable Logic Controller, commonly known as a PLC, is a specialised industrial computer designed to automate electromechanical processes. Unlike a standard desktop computer, a PLC is built to withstand rugged conditions, including vibration, electrical noise, and wide temperature ranges, which are common in...
View Now
How to Read HMIs (Human‑Machine Interface) – A Practical Guide
An HMI is a graphical interface that enables humans to monitor, control, and interact with automated systems. Typically, HMIs connect with programmable logic controllers (PLCs), distributed control systems (DCS), or SCADA systems. They allow operators to visualize real-time process data, send control commands such...
View Now
What is SCADA and how it works? The basics!
SCADA is a system that collects data from remote sensors and devices, presents it to operators, and allows them to control processes from a central location. It combines hardware (like sensors and controllers) with software (such as monitoring dashboards) to manage complex systems. The...
View Now
Why Grid Stability is Becoming More Challenging?
Australia’s power system is undergoing the fastest transformation in its history. Coal-fired generators are retiring earlier than originally planned, and almost all new generation is renewable. Inverter-based resources, which include wind, solar, and batteries, now dominate new connections, and distributed energy resources, such as...
View Now
Why 11 kV, 22 kV and 33 kV Dominate in Australia?
In Australia, the majority of distribution infrastructure sits in the 11–33 kV band. The 11 kV level is extremely common in older urban networks and still appears widely in commercial precincts, industrial estates and suburban distribution systems. The 22 kV level is prominent in...
View Now
How to Calculate Prospective Short Circuit Current (PSCC)?
The prospective short-circuit current, PSCC, is an important electrical system parameter that defines the maximum fault current flow in case of a short circuit. It will make sure designs are proper, right equipment is selected, and safety standards are met especially on systems of...
View Now