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...
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Ordering A Distribution Board – What to Consider
A distribution board is the heart of your electric system. It lets you distribute single incoming power from the mains supply into several smaller, protected circuits. Each circuit is usually fitted with protection devices such as fuses, circuit breakers, or Residual Current Devices (RCDs),...
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What are Mechanical Services Switchboard (MSSBs)?
A mechanical services switchboard is the electrical distribution panel, powering and governing the most fundamental building services. More so, such as mechanical, for instance, HVACs. In their attempt to concentrate MSSBs for better control of operations, ensure all services operate harmoniously, and are seamlessly...
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Glossary of Electrical Terms – Acronyms and Descriptions
Understanding electrical terms helps people communicate effectively with electricians and other professionals in the field. It provides definitions for words and phrases that are specific to the electrical field and can be unfamiliar to others. The following are the lists of most common terms...
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Electrical Meter Panels – A Comprehensive Guide
For safe and efficient energy supply in residential and commercial settings, recognizing the different types of electrical meter panels and their installation needs is important. This article will discuss the different kinds of meter panels-for instance, residential, unenclosed, enclosed, and group meter panels (GMPs)-together...
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What Are CT Chambers And Metering Compartments
CT chambers houses Current Transformers (CTs) used to measure electrical consumption. CT chambers are specially designed enclosures that house current transformers used to measure low-voltage (LV) electrical supplies. Depending on the electricity supplier, these chambers may either be provided by the supplier or need...
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Exporting Switchboards Internationally – The Essential Steps
In the globalised world, where everything has gone global, you’ll find your switchboards being exported internationally and opening doors to markets on the most core essentials to grow and boost business. This paper takes you through some of the most critical steps when exporting...
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Kiosk substation – All you need to know!
A kiosk substation is a prefabricated, weatherproof enclosure that contains the equipment to step distribution-level medium voltage (typically 11 kV or 22 kV on Australian networks) down to the low voltages supplied to homes and businesses. Inside that enclosure you’ll usually find a distribution...
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What is CT Burden? Explained!
The burden of a current transformer is defined as the volt-ampere loading that is permissible without exceeding the accuracy limits for a given CT accuracy class. Simply put, it is the load connected to the CT secondary. CT burdens are usually specified as 5...
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How Long You Can Run a Cable for a CT? Explained!
A current transformer is one that, in contrast to the considerably larger current flowing in the primary winding, creates a smaller, proportionate current in its secondary winding. The primary side is attached to the primary conductor transmitting the high current. Usually 5A or 1A,...
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