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Showing posts from October, 2022

Humming Noise of transformer

When it comes to power regulation, transformers are everything. Step-up and step-down transformers can boost or lower voltages to apply whatever level of power is necessary for a given application. Transformer noise can be a significant problem. Even small amounts can gum up the works and prevent power transformers from working the way they were designed. It is very important to know exactly what transformer noise is, why it causing it and how to prevent it. What Causes the Humming Noise in an Electrical Transformer? There are actually multiple causes of transformer noise. The main one is the Magnetostriction Effect. This is when the current that flows through the transformer’s coils creates a magnetic field. The magnetic field then changes the dimensions of the transformer’s iron core. The core expands and contracts with the alternating current, which causes a humming sound. As the transformer ages, the layers within the core of the transformer begin to break apart and separate from o

Gross metering and net metering

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What is Net metering and Gross metering? The electricity bills you receive at the home, office, or other buildings, are tracked by an electricity meter to make the acquaintance of the units of electricity you consumed. Generally, for our daily usage, we use the electricity from the power grid and from there, we’ll get the power consumed charge. But, if you have the capacity to produce electricity at your premises itself, then the mechanism of the power grid changes. Solar roof-mounted PVs has become a standard system for generating a secondary source of power for users. As electricity storage is expensive, these systems are often connected to the grid to export surplus electricity to the grid, and deficits can be imported from the grid. With the help of advanced technologies, governments, when designing the regulations for solar rooftop systems, introduced two arrangements –: Net metering Gross metering How does Net Metering work? The Net Metering policy was introduced in India, aroun