DC earth fault relay is commonly used to detect earth fault in DC systems. An ungrounded DC system is used to control the supply of protection systems, control panels, communication, and other networking devices. When one terminal of the DC system is grounded, it is not creating any problem. However, when both the DC terminal … Read more
The main difference between earthing and grounding is that – Under Earthing, the circuit is physically connected to the ground to flow circulating current or fault current of the circuit to the protection of the system, Under Grounding, the circuit is physically connected to the ground to discharge the electrical energy to earth for protecting … Read more
Floating neutral is a condition, in which the neutral wire of any circuit is disconnected from the ground. In AC system, the neutral wire is permanently grounded to the earth. However, floating neutral may occur in a power system due to loose connection, braking of neutral flat, wrong circuit connection, or due to short circuit. … Read more
Volts and amps (ampere) are the two different measures of Electricity. In a close circuit, the electric potential difference between two points is called Voltage and the flow of electrons through the close circuit is called electric current. The volts is the measure of voltage between two points and amps is the measure of electric … Read more
AC or Alternating current is an electric current that continuously changes its magnitude with time and periodically reverses its direction. In Direct Current or DC, there is no change in direction, and the magnitude of the current is also the same. AC current is most commonly used for home and industrial purposes. Most of the … Read more
mAh stands for milli Ampere hour which defines the total capacity of current a mobile battery can deliver in an hour time. To express the total storage capacity, the mAh rating is used in a mobile battery. A higher mAh rating means a higher storage capacity of the battery. For example, a battery rating of … Read more
Cable lugs are used for termination or connection of cables to the Terminal Box (TB). There are so many types of cable lugs are available based on the cable size. They are mainly copper and aluminum type. Based on the application of the cables, following types of cable lugs are used for cable termination /connection … Read more
DC or Direct Current is electrical current which flows always in one direction. As we know, when electron flows from one place to another place, it is called electric current. Under Direct current, electron flows in one direction. Electron flows from the negative voltage terminal to positive voltage terminal and due to this DC flows … Read more
A VRLA battery, which stands for Valve-Regulated Lead-Acid battery, is a type of sealed lead-acid battery that incorporates a specific amount of electrolyte, either absorbed in a plate separator or immobilized in a gel-like substance. These batteries are commonly referred to as sealed lead-acid batteries due to their construction, which prevents the escape of electrolyte. … Read more
TNC switch stands for Trip Neutral Close switch. As its name, it is a three-position switch. TNC switch uses to control the Circuit Breaker of the electrical system. The trip position is used to trip the circuit breaker, the close position use for closing the circuit breaker, and the neutral position is the default position … Read more