Category: Electrical

wireless-power-transmission-system

Wireless power transmission system

Wireless power transmission system is the process of transmitting wireless electromagnetic waves like Wi-Fi. So this method of power transfer is safe and this method is similar to the way a Wi-Fi router works....

Working principle of DC motor

Working principle of DC motor

We know that a motor is a device that transforms electrical energy into mechanical energy. In the case of DC motor, it’s one type of motor that uses the DC current to convert electrical...

the-idea-of-electric-potential

The Idea of Electric Potential

A simple voltaic cell is shown. It consists of the copper plate (known as anode) and a zinc rod (i.e. cathode) immersed in dilute sulphuric acid (H 2 SO 4 ) contained in a...

The difference between the D.O.L Starter and Star Delta connection of the motor

মোটরের D.O.L Starter এবং Star Delta কানেকশনের পার্থক্য

সংজ্ঞাগত পার্থক্য D.O.L এর পূর্ণ নাম Direct on Line। যে স্টার্টার সরাসরি লাইনের সাথে যুক্ত থাকে তাকে ডাইরেক্ট অন লাইন স্টার্টার বলে। এ ধরনের স্টার্টার কারেন্ট কমাতে পারে না। তাই এ স্টার্টার দ্বারা মোটরকে...

why-coaxial-cables-are-highly-insulated

Why Coaxial Cables are Highly Insulated?

What is Coaxial Cable? Coaxial cables conduct electrical signals using an inner conductor mostly copper or copper plated wire surrounded by an insulating wire and enclosed by a shield mostly one to four layers of woven...

Transformers Insulation Materials in Oil-Immersed & Dry Type Transformer

Insulation in Oil-Immersed Transformers The most common insulation today for high-voltage windings in a transformer is an enamel coating on the wire, with kraft paper used between layers. Low-voltage strips can be bare with paper insulation between layers. The use of paper wrapping on strap conductor is slowly being...