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- It is called fuse or circuit breaker.
- In electronics and electrical engineering, a fuse is a type of low resistance resistor that acts as a sacrificial device to provide over-current protection, of either the load or source circuit. Its essential component is a metal wire or strip that melts when too much current flows through it, interrupting the circuit that it connects. Fuses are an alternative to circuit breakers.
- A circuit breaker is an automatically operated electrical switch designed to protect an electrical circuit from damage caused by overload or short circuit. Its basic function is to detect a fault condition and interrupt current flow.
- Unlike a fuse, which operates once and then must be replaced, a circuit breaker can be reset (either manually or automatically) to resume normal operation.
What else can I help you with?
What is an electronic device that limits the amount of current that can flow through it?
A current limiter. Commonly used in well designed power supplies to make the power supply "Fold over" if output current exceeds a safe value. Commonly use a low value resistor in series with the output, and a circuit that senses the voltage across it. Although the above answer describes a circuit to limit current, the device that limits the amount of current flowing through it is a resistor.
What device is needed for current to flow in an electric circuit?
Too vague of a question. As long as it is a closed circuit it will flow.
The device used to deenergize circuits automatically when a very small ground fault current flows is the?
A ground fault circuit interrupter is the device used to de-energize the circuit.
What total current delivered to a number of devices connected in parallel is the sum of the individual currents in each device Circuit breakers are resettable automatic switches that protect against a?
Yes, the total current delivered to multiple devices in parallel is the sum of the individual branch currents (the vector sum if there is inductive load). Circuit breakers are resettable automatic switches that help protect against circuit overload (such as running too many hair driers and heaters on at one time) and faults (such as dropping the hair drier into a bathtub). Circuit breakers "operate" (or open) to stop current flow to the fault or overloaded circuit.
Why different electrical devices have different fuses and how the fuses are different?
The current flowing through a cable supplying a load or loads depends on the combined power of those loads, and the size of the cable is chosen according to the anticipated load. If the cable is overloaded, then it will draw excessive current (an 'overload current') and overheat, and its insulation may eventually fail, and present a fire hazard. If one or other of the load devices develops a fault, then that device may draw significantly more current (a 'short-circuit current') than it should and it will fail. So, cables are subject to over currents -i.e. 'overload currents' or 'short-circuit currents'.A fuse is an over current protective device. It is designed to disconnect the cable supplying a load or loads in the event of an overload or short-circuit current occurring either in the cable or in the loads. By doing so, it protects the cable as well as the load, from overheating and prevents the possibility of a fire.All fuses work on the same principle. A fuse carriercontains a fuse link, or fuse element, which is connected in series with the cable and its load. When an overload current occurs, the fuse link melts, and creates a break in the circuit, disconnecting the cable. The fuse link is carefully manufactured so that the larger the over current, the faster it melts.Fuses are rated in amperes, according to the maximum current they can continuously carry without melting, and are manufactured in a range of standard current ratings. What makes each fuse rating different is the cross-sectional area of their fuse link; the greater the cross-sectional area, the higher the current rating.In your home, individual circuits are each protected by a fuse*, sized according to the current capacity of the individual circuit. These, in turn are protected by a larger fuse which protects all the circuits. The larger fuse is designed to operate only if one of the individual circuit fuses fails to operate quickly enough. By fusing individual circuits in this way, an over current should only affect an individual circuit, without affecting any of the healthy circuits.There are a great many different types and design of fuse, according to their application and the magnitude of system voltage they are to operate. Fuses designed to operate on low voltage systems are physically quite small, whereas fuses designed to operate of high-voltage systems are physically quite large -but they all work on the same principle.*In residences, fuses are now being replaced by miniature circuit breakers (MCBs), which can be reset after they have operated, unlike fuses which must be replaced.
A device that protects a circuit from current overload is called what?
Fuse, Circuit breaker
A device that protects a circuit from current overload is called?
Fuses or circuit breakers are termed 'overcurrent protection devices', which protect circuits from either an overload current or a short-circuit current.
Can a varistor be used as a circuit protection device?
No, a circuit protection device must open the circuit on a fault current or overload.
Why fuse will get burnt when phase and neutral get connected?
A fuse is an overcurrent protection device, which protects a circuit by melting in the event of either a sustained overload current, or a short-circuit current. A short-circuit current will occur when a line (not 'phase') conductor makes direct contact with a neutral (or earth) conductor.
What is a 8a fuse?
A device that will protect an electrical circuit from overload up to a current flow of 8 amps
What are electrical fuses?
Safety devices used in electrical circuits.AnswerA fuse is an overcurrent protection device, and will operate in the event of a sustained overload current or a short-circuit current.
What a device that protects an electric circuit from too much current?
Circuit Breakers and Fuses limit the amount of current flowing through the circuit.
Function of a breaker?
The purpose of a circuit breaker is to open the circuit in the event of an overload. Wires/conductors are only rated for a specific Amperage. If this amperage is exceeded the conductor/wire begins to heat up and given enough time it becomes a fire hazard. For instance a 15 amp breaker will trip once the Amps drawn through that circuit exceed 15 amps. The short answer is to keep you safe.
What is an electronic device that limits the amount of current that can flow through it?
A current limiter. Commonly used in well designed power supplies to make the power supply "Fold over" if output current exceeds a safe value. Commonly use a low value resistor in series with the output, and a circuit that senses the voltage across it. Although the above answer describes a circuit to limit current, the device that limits the amount of current flowing through it is a resistor.
Which electrical safety device melts easily during a short circuit or overload?
You're talking about a "fuse". The fuse doesn't know anything about "short circuit" or "overload". It only knows that the current through it has exceeded its rated value, but nothing about how or why that occurred.
What is a overcurrent device?
a device protecting conductors or other equipment in a circuit from an overload/overcurrent situation
What is a device that protects an electric network by automatically opening a circuit when the current grows too strong?
Circuit breakers and fuses are both devices that protect an electric network byautomatically opening a circuit when the current exceeds a predetermined level.
