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A circuit breaker is a safety device that is put in an electrical circuit. When something fails, or shorts out, the circuit breaker "senses" the excessive current and automatically opens (or breaks) the circuit.
They are used in homes, as well as some electrical devices. They are different than a fuse in that a circuit breaker can be reset. A fuse on the other hand, has to be replaced once it opens up.
I hope this helps you. for more info, here is a web page about circuit breakers:
<a href="http://www.wisegeek.com/what-is-a-circuit-breaker.htm">Ciruit breakers</a>
Wiki User
∙ 14y ago
Wiki User
∙ 10y agoThe switch contacts are immersed in oil to quench any spark that might occur when the current is interrupted. Water can't be used because it makes things rusty and is not a good insulator unless highly pure.
Wiki User
∙ 12y agoOil circuit breakers are high-voltage circuit breakers that that are usually operated mechanically, using a powerful spring press, but use oil
- to insulate and, therefore, minimise the 'footprint' occupied by the circuit breaker.
- as the medium for extinguishing the arc created when the circuit breaker trips under fault conditions.
Wiki User
∙ 13y agoAn oil circuit breaker is a breaker that is immersed in a tank of insulating oil. The tank has two electrical bushings through the tank to allow the supply and load to be connected to the breaker. These breakers can be opened under a heavy amperage load. The insulating oil is used to extinguish the arc that is produced when opening a switch under load.
Wiki User
∙ 13y agooil circuit breakers are used in voltage range between 11kv to 132kv application they r installed in units ,example for 66kv application 6 oil circuit breakers r used ..
Wiki User
∙ 13y agoIn the circuit breaker panel. It's the only place they're used.
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Can different rating circuit breakers have the same short circuit characteristics?
Yes, different amperage rating circuit breakers can have the same short circuit characteristics.
What are the advantages and disadvantages of oil compared to air when considering methods of arc control in circuit breakers?
Air has less quenching effects when a breaker breaks on load or on a fault. Air circuit breakers are not suggested for very high rating current and high voltage application. It is ok for Low voltage application. Oil is cumbersome to use and maintain. But Hv or EHV application oil is used for breaker quenching application. These days SF6 or vacuum circuit breakers are more popular for HV, EHV application.
How do you work air circuit breaker with air?
circuit breakers are switches that open quickly usually opening with a fault condition air circuit breakers need a long path to quench the arc oil filled circuit breakers quench arcs much more effectively and in a smaller space vacuum breakers have no media for an arc to propagate and are far smaller fuses generally are filled with silica sand to quench the arc and higher currents make the arc path much longer typical AIC fuses 200,000A air breakers 15,000A oil breakers 50,000A vacuum breakers 100,000A fuses work once and work correctly and dont fail or weld closed they are inexpensive and safe breakers can work tens of times breakers need rework and recalibration whenever they are reset breakers have mechanical moving parts tempered springs and require periodic maintenance and testing Breakers can weld shut with a short
Will multiple tripping of a circuit breaker damage the circuit breaker?
You don't specify whether you mean low-voltage circuit breakers, such as MCBs (miniature circuit breakers) or high-voltage circuit breakers. In either case, repeated tripping under fault conditions causes arcing which damages the main contacts of the circuit breakers. For this reason, high-voltage circuit breakers are taken out of service after a specified number of tripping operations, so that the contacts can be maintained or, if necessary, replaced. MCB contacts are inaccessible, and the MCB may eventually require replacing.
What fuses and circuit breakers provide protection in the event of?
Short circuit fault.
The purpose of the SEC's circuit breakers rule is to?
The purpose of the SEC's circuit breakers rule is to:
Where can Square D circuit breakers be purchased?
Square D circuit breakers can be purchased from various homeware and DIY stores such as Home Depot or Lowes. Websites that specialise in circuit breakers such as Circuit Breaker Service or All Breakers do sell them as well.
Where are the circuit breakers on a 2000 chev Tahoe?
most circuit breakers are under the hood near the battery. major breakers. you have to unscrew cover.
What breakers are compatible with ge breaker boxes?
GE circuit breakers with catalog numbers ranging from THQL1115 through to THQL1150 can be substituted like for like with Cutler-Hammer circuit breakers coded CL115 through to CL150, ITE Siemens circuit breakers coded Q115 through to Q150 and Square D circuit breakers coded HOM115 through to HOM150. These are single pole breakers. GE circuit breakers with catalog codes from THQL2115 through to THQL2150 can be substituted with Cutler-Hammer circuit breakers CL215 through to CL250, Square D circuit breakers HOM215 through to HOM250 and ITE Siemens circuit breakers Q215 through to Q250 of the same amperage and voltage. These are double pole breakers.
Is gold used in circuit breakers?
Certainly not in the case of high-voltage circuit breakers. Probably not in low-voltage circuit breakers, as copper is a better conductor and has a higher melting point.
3 pole circuit breakers?
3 pole circuit breakers are used for 3 phase lines
What breaker boxes are compatible with GE circuit breakers?
GE circuit breakers with catalog numbers ranging from THQL1115 through to THQL1150 can be substituted like for like with Cutler-Hammer circuit breakers coded CL115 through to CL150, ITE Siemens circuit breakers coded Q115 through to Q150 and Square D circuit breakers coded HOM115 through to HOM150. These are single pole breakers. GE circuit breakers with catalog codes from THQL2115 through to THQL2150 can be substituted with Cutler-Hammer circuit breakers CL215 through to CL250, Square D circuit breakers HOM215 through to HOM250 and ITE Siemens circuit breakers Q215 through to Q250 of the same amperage and voltage. These are double pole breakers.
Can different rating circuit breakers have the same short circuit characteristics?
Yes, different amperage rating circuit breakers can have the same short circuit characteristics.
Where can I find circuit breakers?
Lowes and Home Depot carry circuit breakers as well as the wiring and box. Circuit Breakers come in several watts, so be sure you get what is appropriate for your living space.
How did early circuit breakers operate?
Circuit breakers operate. is the operetion of the break of the circuit. FORMULA : f(x) = m x+b
What are the circuitrotectors?
Circuit protectors are fuses and circuit breakers.
Where will you use Oil Circuit Breakers?
Oil circuit breakers (OCBs) are high-voltage circuit breakers whose contacts are immersed in transformer oil, and are widely used in high-voltage electricity transmission/distribution systems. All circuit breakers, regardless of type, are overcurrent protection devices, designed to disconnect a circuit/load in the event of a persistent overload current (caused by too heavy a load) or a short-circuit fault current.There are various designs of OCB but what they all have in common is that they use a jet of oil to extinguish the high-temperature arc created between the circuit-breaker's contacts as they part in the event of a fault. In most cases, the jet of oil is caused by the expanding gas released as the arc is formed, which then forces a jet of oil between the contacts. To accurately direct the oil jet between the contacts, various devices, such as 'turbulator pots' are used.The operation of these circuit breakers is usually by a spring-press mechanism, although some use other methods may also be used.OCBs have a relatively small 'footprint' (i.e. the amount of space they occupy) because the insulating properties of the oil allow components at different potentials to be much closer together than they would be in, say, air. Operation of high-voltage circuit breakers is initiated by protection relays which are usually located inside the substation building.
