Safety devices break a circuit when the voltage is very high give two examples
Answers
Protection devices for electrical circuits accomplish two main functions namely consistency as well as protection. Protection is assured through detaching power supply in a circuit through overcurrent protection, which removes fire hazards and electrocution. Additionally, the accurate protection may be required to obey with organization principles for some products. Designers must take time to know the different protection devices for circuits. Protection devices used to protect circuits from extreme voltages or currents. This article discusses what is a protection device, and types of protection devices used in electrical and electronic circuits.
What is a Protection Device?
The circuit protection device is an electrical device used for preventing an unnecessary amount of current otherwise a short circuit. To ensure the highest security, there are many protection devices available in the market which offers you a total range of protection devices for circuits such as a fuse, circuit breakers, RCCB, gas discharge tubes, thyristors, and more.
Different types of Protection Devices
The different types of circuit protection devices examples include the following.
Fuse
Circuit Breaker
PolySwitch
RCCB
Metal Oxide Varistor
Inrush Current Limiter
Gas Discharge Tube
Spark Gap
Lightning Arrester
Types of Circuit Protection Devices
Types of Circuit Protection Devices
Fuse
In electrical circuits, a fuse is an electrical device used to protect the circuit from overcurrent. It consists of a metal strip that liquefies when the flow of current through it is high. Fuses are essential electrical devices, and there are different types of fuses available in the market today based on specific voltage and current ratings, application, response time, and breaking capacity.
The characteristics of fuses like time and current are selected to give sufficient protection without unnecessary disruption. Please refer to the link to know more about: Different Types of Fuses and Its Applications
Fuse
Fuse
Circuit Breaker
A circuit breaker is one kind of electrical switch used to guard an electrical circuit against short circuit otherwise an overload which will cause by excess current supply. The basic function of a circuit breaker is to stop the flow of current once a fault has occurred. Not like a fuse, a circuit breaker can be operated either automatically or manually to restart regular operation.
Circuit breakers are available in different sizes from small devices to large switch gears which are used to protect low current circuits as well as high voltage circuits. Please refer the link to know more about: Types of Circuit Breaker and Its Importance
Circuit Breaker
Circuit Breaker
Poly Switch or Resettable Fuse
A resettable fuse is a passive electronic component used for protecting electronic circuits from over-current mistakes. This device is also called as a poly switch or multi fuse or poly fuse. The working of these fuses is same as PTC thermistors in particular situations, however, work on mechanical transforms instead of charge-carrier-effects within semiconductors.
Resettable Fuses are used in several applications like power supplies in computers, nuclear or aerospace applications where substitution is not easy.
Answer:
TVs, audio, and computer equipment have circuit breakers that protect their sensitive electronic circuits.