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For the same reasons necessitating the use of potential (voltage) instrument transformers, we also see the use of current transformers to reduce high current values and isolate high voltage values between the electrical power system conductors and panel-mounted instruments. See basic introduction to Current Transformers Below, or you can skip to read the text below: … Read more

The earthing screen is a network of copper conductors (generally called shield or screen) that is generally mounted over the electrical equipment in an electric power station. An Electrical substation houses expensive electrical equipment and devices. In case of lighting thunders, there is a chance that lightning strokes might directly hit the equipment at the … Read more

The design of closed loop control systems is comparatively more complex than open ones. Such system takes feedback from outut and performs the required action accordingly. The entire construction requires a sensor for taking input, some sort of controller which performs the action and a feedback taken from the output. Given below are 10 examples … Read more

What is Zener Diode A Zener diode is a special type of semiconductor diode designed to operate in the reverse-biased breakdown region. Zener diode maintains a nearly constant dc voltage while operated in proper conditions. Zener diodes are silicon based discrete semiconductor diodes that allow electric current to flow bidirectionally – either reverse or forward. … Read more

In Electrical Engineering, two-terminal components can be connected in series or parallel configurations.  Electrical components connected in series are along a single “electrical path”. Each component in the series network has the same flow of electric current through it. The flow of current through any component is equal to the current through the network. The … Read more