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one and a half breaker scheme the same as N-1 scheme. means if you have two BUS you 3 breakers each bay between it protecting your 2 connected loads or transmission lines. meaning if fault detected in a particular line only two breakers will trip isolating the faulted line and will not affect the adjacent line or load.

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12y ago
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4mo ago

Breaker and a half is a term used in electrical engineering to describe a circuit protection device that has a current rating between one and two times the full load current of the circuit it is protecting. This allows for a margin of safety to accommodate small overcurrents without tripping the breaker.

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Q: What is breaker and a half?
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Can you use two 15 amp single pole breakers in place of a double pole 30 amp breaker?

No, you cannot use two separate 15 amp single pole breakers in place of a double pole 30 amp breaker. A double pole breaker is designed to simultaneously disconnect both circuit conductors, whereas using two single pole breakers would not provide the necessary protection for the circuit. It is important to use the correct size and type of breaker as specified by the electrical code for safety and functionality.


A GFCI device in a breaker is intended to?

A GFCI device in a breaker is intended to trip the breaker open when a ground fault is sensed in the circuit that the breaker is protecting.


If you blew a fuse in your house but the breaker does not show a blown fuse you still have no power to half your house what next?

If the breaker does not show a blown fuse but you still have no power to half your house, it's possible that the issue lies with a tripped breaker that isn't visibly noticeable. Try flipping all the breakers off and on to reset them. If that doesn't work, you may need to consult an electrician to identify and fix the problem.


What is one half breaker scheme used for 400220kv substation?

a method of interconnecting several circuits and breakers in a switchyard so that three circuit breakers can provide dual switching to each of two circuits by having the circuits share one of the breakers, thus a breaker and one-half per circuit; this scheme provides reliability and operating flexibility, and is generally used at 500 kV when more than five lines terminate in a substation.


When installing a circuit breaker do you size the breaker to correct wire size or the device its controlling?

When installing a circuit breaker, you size the breaker based on the wire size. The breaker should be matched to the ampacity of the wire to ensure proper protection against overloads and short circuits. The device being controlled by the breaker is not a determining factor in sizing the breaker.

Related questions

What is one and half breaker system in electrical lines?

One and half breaker system is an improvement on the double breaker system to effect saving in the number of circuit breakers. For every 2 circuits, 1 spare breaker is provided: Two feeders are fed from two buses via their associated circuit breakers and these two feeders are coupled by a third circuit breaker which is called tie breaker. During failure of any of the two feeder breakers, the power is fed via the breaker of the second feeder and main breaker (tie breaker).


What is the take up on a half-inch breaker?

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Why does Half of the electrical box works other half doesn't?

One side of main breaker is broke. One line to the house is open.


Half of 436 is 217.5--why only 216 votes needed?

The Vice President casts the tie breaker.


What is windbreaks?

A win breaker is a fart because when you fart or release methane gas from your anus you are splitting the win in half see


Can you use two 15 amp single pole breakers in place of a double pole 30 amp breaker?

No, you cannot use two separate 15 amp single pole breakers in place of a double pole 30 amp breaker. A double pole breaker is designed to simultaneously disconnect both circuit conductors, whereas using two single pole breakers would not provide the necessary protection for the circuit. It is important to use the correct size and type of breaker as specified by the electrical code for safety and functionality.


Is there a square d with 2 pulls that will replace a single pull that is one half inch wide as you are out of room in your box?

Yes, Sq D makes a tandem mini breaker that will fit into a standard Sq D breaker slot.


What is the torque for the half shaft nut on 1997 Chevy Venture?

Tight......like 200ftbls tight I get a long breaker bar and stand on it a touch.


Is main breaker only powering one half of hot bus because when dryer is on some light on circuits on dead bus work?

Yes, it would appear that one side of the main is open at the fuse, breaker, drop conductors, or transformer.


What is the major works of Gustave Courbet?

the stone breaker


What is rock breaker?

what is a rocker breaker