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Ask any facility manager in Nigeria and they will describe the same problems: lights that dim and brighten, air conditioners that fail early, electronics that die after a storm, and the bang when grid supply returns after an outage. Unstable voltage costs businesses and homes a great deal in damaged equipment. Most of that damage […]
A new transformer is a large investment, and it often travels a long way, by sea, by road and over rough site access, before it reaches your substation. Damage in transit, wrong specifications and manufacturing defects all happen. Testing on site before acceptance protects you: if something is wrong, it is found while the supplier […]
Once a business outgrows a low-voltage connection, the next step is to take supply at medium voltage through its own transformer. In Nigeria that usually means 11 kV or 33 kV from the local distribution company (DisCo). The choice affects your equipment cost, your reliability and how easily you can expand later. Here is what […]
Many facility managers are surprised when an earth pit that tested well during the rains gives a much higher reading a few months later. It is not a faulty meter. Soil resistance changes with moisture, and in Nigeria the difference between the rainy and dry seasons can be large. Earthing designed only on a wet-season […]
Almost every building in Nigeria needs to switch between grid supply and a generator. The device that does this, a changeover switch or an automatic transfer switch (ATS), is one of the most important parts of the installation. Get it wrong and you risk damaged equipment, a back-feed into the DisCo network, or a generator […]
When an underground cable fails, the supply to a building, estate or factory can go off for days. The old approach was to dig along the cable route until the damage was found. In a city like Lagos, where cables run under roads, paved compounds and other people’s property, that is slow, expensive and disruptive. […]
When a transformer trips on a fault, gets flooded, or sits out of service for months, the pressure to switch it back on is enormous. Production is stopped, tenants are complaining and the generator is burning diesel. But energising a damaged transformer can turn a repairable fault into a total loss, and in the worst […]
There is a common temptation when managing facility projects or electrical installations — cut costs by going with the cheapest option available. It seems like a smart financial decision at the time. But what happens when that decision comes back to haunt you months or even years later? At Corustar Technological Services, we recently carried […]
This blog post delves into why load evaluation prevents overload, improves system efficiency, and ensures safe electrical installations
This guide explains the causes of voltage drop, its effects on electrical systems, and practical methods electricians use to prevent it.
Electrical safety forms the bedrock of secure environments, yet often
Building a truly safe electrical system starts beneath the surface. Di