A bit of insight into a sag fault

Thirty years working in the electrical trade has taught us much and has enabled us to provide first-rate services to our clients today. We are comfortable with all kinds of malfunctioning applications and we’re aware of exactly the right approach to take for any given situation. Providing assistance to the industrial domestic and commercial sectors, we are the ones to call whenever you need electricians in Warwickshire.

Sag faults are a kind of power issue that see reductions in the AC voltage at a provided frequency for 0.5 cycles to 1 minute’s time. They are typically the result of a system fault, as well as turning on loads that have heavy start currents. For example, starting up massive motors within an industrial complex can cause a significant amount of voltage drop.

Motors can draw six times their regular running current or more during the starting process. If a big and sudden electrical load like this is created, it’s likely to result in a substantial voltage drop to the rest of the circuit that it is residing on.

It may be one of the most effective solutions, but adding on a dedicated circuit for sizeable starting loads might not prove beneficial in the economic or practical sense. This is particularly true if the entire structure has a plethora of items with such loading. You can’t put everything on a separate circuit after all as the cost would be astronomical.

Other methods do exist for dealing with huge starting loads however. For instance, a substitute power source could be utilised, ones which does not load the remainder of the electrical infrastructure during start-ups. Such examples include reduced voltage starters, which have either star-delta configurations or autotransformers.

At Q-Energy, as NICEIC,ECA members, we make certain that all the work carried out meets the high standards of the Institution of Electrical Engineers. Our team meets strict deadlines constantly, but rest assured that we never let our speed compromise the quality of our work. If there’s ever an electrical fault that needs attending to, including sag faults, we are just the people for the job.