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Q: How do you compute main feederline circuit protection?
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What is discrimination factor of electrical circuit protection?

Electrical discrimination is to do with selecting the correct protection in the fault path of an electrical circuit. To illustrate, if you have a machine at the end of an electircal circuit and that is protected by a 13A fuse lets say, and then you have a 20A circuit breaker protecting that at the consumer unit (fuse board), and then the main switch on the consumer unit is a 10A circuit breaker, then every time the machine uses more than 10A of power the main switch will trip and disconnect everything connected to it, that is where discrimination is not achieved. Basically it is where the circuit protection closest to the macine is smaller and it gets bigger as it goes boack to the source, then discimination is achieved. I hope that helps. If not then it probably need a drawing to help answer.


What is the difference of a Circuit Breaker from an Air Circuit breaker?

They are completely different. A moulded-case circuit breaker is a low- or medium-voltage device, whereas an air circuit breaker is a very large circuit breaker designed for use in high-voltage transmission/distribution substations.


What is the meaning of MCCB panel Electrical Engineering?

Main circuit circuit breaker


What are the main components of a household circuit?

MAIN COMPONENTS (HOUSE HOLD CIRCUIT)1. METER2. MAIN SWITCH3. PANEL BOARD4. SOCKETS5. LOADS~> C.A.P.T.A.I.N D.A.R.NA ! xD


Is An open in the main line of a parallel circuit causes all individual branch currents to be zero?

Yes, an open in main line of a parallel circuit will effect the entire circuit current and make the whole circuit current zero

Related questions

What is the function of circuit breakers and fuses?

Protection. They shut off the power to protect the equipment circuits, the main circuits and people.


What is discrimination factor of electrical circuit protection?

Electrical discrimination is to do with selecting the correct protection in the fault path of an electrical circuit. To illustrate, if you have a machine at the end of an electircal circuit and that is protected by a 13A fuse lets say, and then you have a 20A circuit breaker protecting that at the consumer unit (fuse board), and then the main switch on the consumer unit is a 10A circuit breaker, then every time the machine uses more than 10A of power the main switch will trip and disconnect everything connected to it, that is where discrimination is not achieved. Basically it is where the circuit protection closest to the macine is smaller and it gets bigger as it goes boack to the source, then discimination is achieved. I hope that helps. If not then it probably need a drawing to help answer.


Is the main circuit board of the computer?

The main circuit board of the computer is the motherboard.


Who makes a main breaker 200 amp service that has built in 200 amp gfci?

Currently, there is no manufacturer that makes a main breaker 200 amp service with built-in 200 amp ground fault circuit interrupter (GFCI) protection. GFCI protection is typically provided through individual GFCI outlets or circuit breakers installed within the electrical system.


What has replaced fuses in the main fuse box in a house?

Circuit breakers have replaced fuses in many modern homes. Circuit breakers offer better protection against overloads and short circuits, and they can be reset rather than needing to be replaced like fuses.


Does an electric circuit have a beaker?

No, an electric circuit does not have a beaker. A beaker is a container used for holding liquids, whereas an electric circuit consists of components like wires, batteries, resistors, and switches that allow electricity to flow in a specific path.


A motherboard is the main circuit board of the computer?

The main circuit board of a computer is referred to as the motherboard.


What are the main characters in the book leaving protection by Will Hobbs?

The main characters in Leaving Protection are Robbie and Thor.


What is the difference of a Circuit Breaker from an Air Circuit breaker?

They are completely different. A moulded-case circuit breaker is a low- or medium-voltage device, whereas an air circuit breaker is a very large circuit breaker designed for use in high-voltage transmission/distribution substations.


When a three phase generator is short circuted what is the current and voltage?

Hopefully the current and voltage would be zero. The generators overload and short circuit main breaker protection is there just for conditions like that. As soon as the fault is recognized by the protection the generator is taken off line.


Why gate circuits are isolated from the main circuit?

Gate circuits should be isolated from the main power circuit to avoid any damage to the power circuit if gate is damaged.


What is the main circuit board on a compuer?

The main circuit board is known as the Mother Board.