Difference between grounding/earthing and bonding

Earthing and bonding are two terms very closely related but are different. Even though earthing and bonding are meant to prevent electric shock, they have a subtle difference that needs to be understood. This article explains the concepts and the difference between earthing and bonding. Note: The terms earth and ground refer to a common … Read more

Types of grounding

This article discusses several types of grounding methods. The intention of providing the proper ground is to control the voltage with respect to the ground and provide a low resistance path for the leakage charges to pass to the ground. In addition, the ground is used to detect unwanted connections between the phase and the … Read more

Torque-speed calculator & speed-torque calculator

Here is a calculator that can be used to calculate torque from speed and speed from torque. Torque-speed calculator Enter motor torque N.mlb.inlb.ft Enter motor power hpkW Calculate Result Motor speed rpm Speed-torque calculator Enter the motor speed RPM Enter the motor power hpkW Calculate Result Torque in N.m N.m Torque in lb.in lb.in Torque … Read more

Torque-power calculator & power-torque calculator

Here is a calculator that can be used to calculate torque from power and power from torque. Torque-power calculator Enter motor torque N.mlb.inlb.ft Enter the motor speed RPM Calculate Result Power in kW kW Power in hp hp Power-torque calculator Enter the motor power HPkW Enter the motor speed RPM Calculate Result Torque in N.m … Read more

MOS Controlled Thyristor (MCT)

An MCT or a MOS-controlled Thyristor is a semiconductor device with the combined capabilities of a thyristor and a MOSFET. It was introduced in the year 1992. It comes with several advantages when compared to other semiconductor devices. Its vertical structure allows low conduction loss and high voltage capabilities. The silicon-controlled rectifiers have a very … Read more

Rogowski Coils

A Rogowski coil is an electrical transducer, that functions similar to a current transformer and is used in a variety of applications to measure alternating current (AC). It is named in honor of German physicist Walter Rogowski for his contributions to the field of electronics. Construction-wise they are a bit different from the normal current … Read more

Star-Delta starter wiring diagram – Control and power wiring diagrams

The power and control circuits of a star-delta starter are discussed in this article with the help of an actual star-delta starter wiring diagram. You can find the instructions to calculate the ratings of contactors for a star-delta starter circuit here: Star-Delta starter design tool. Further operation in detail can be found here: Star-delta starter … Read more

Top 10 DCS Companies in the world

Distributed Control Systems (DCS) is being used to control a production plant or a process for over 40 years now. They were commercialized with the launch of TDC 2000 by Honeywell and CENTUM systems by Yokohama. Distributed control systems have been evolving since then. Here is the list of the top 10 leading players in … Read more

Top 10 Industrial Automation companies in the world

Industrial automation and robotics enable large-scale manufacturing at a lower cost. It enables an increase in productivity and product quality. There are many industrial automation service providers around the globe. Here is the list of the top 10 industrial automation companies in the world. Top 10 Industrial Automation companies Siemens AG – Germany ABB – … Read more

Electric current collectors

What are current collectors? Current collectors are components fitted to an electric equipment in motion to collect electric current required for its operation from a stationary busbar. They can be found in electric locomotives, cranes, trams, overhead conveyors, travelling cranes etc. Another place where you may see them is in those bumper cars in amusement … Read more