Contactors and relays are essential components in electrical systems, used to control circuits by opening and closing contacts. Despite their similarities, they serve different purposes and face distinct issues. In…
Grounding systems are required not only to ensure the safety of the personnel and the safe operation of equipment but also to protect the system from lightning and ensure accurate…
Hundreds are electrical motors are used in modern-day industries for process automation and control. To control those motors, motor control centers or MCC panels are needed. They contain circuit breakers…
It is vital to maintain good ground in a system. In order to ensure that, ground resistance measurements and tests are conducted on existing earth electrodes at periodic intervals after…
The fall of potential method or 3-point method is the most commonly used method to measure ground resistance. It is used to determine the earth resistance of an existing grounding…
One of the key elements affecting ground resistance is soil resistivity. Soil resistivity measurements are conducted before setting up an earthing system, in order to ensure an effective earthing. Good…
Grounding transformers are used to obtain a neutral when an existing delta-connected or ungrounded systems are to be grounded. These transformers provide a path for the flow of fault currents…
Time-delay fuses can provide overload and short circuit protection while overcoming momentary current spikes. They are used for the protection of motors and transformers. The time-delay characteristics of these fuses…
The AC contactors differ from the DC contactors in their construction, arc extinction, and usage in a circuit. In this article, let us discuss the major differences between AC contactors…
A resonant grounded system can significantly reduce the ground fault currents. This grounding system basically consists of a tuned reactor connected between the neutral and the ground that resonates with…