Discuss about the Simulation on Failure Analysis of Vacuum.
The electrical circuit breaker can be considered to be a switching device which can be directly operated automatically and manually for the aspect of protection and controlling of electrical power system. In recent times modern power system deal with huge amount of current so it can be stated here that the mechanism which is related to the circuit breaker should be given upmost propriety as it would be controlling the overall system. In the event of any type of fault which is related to short circuit or any types of fault in the system it can be stated that the equipment as well as other power devices suffer a huge stress which can directly impact the functionality of the overall system. In order to protect the system the fault current should be removed or evacuated from the system as soon as possible after the event has occurred (Razi-Kazemi, 2015). After the current is removed the system, the system must regain its overall working for the aspect of delivering reliable quality power at the end of the receiver. In this context different types of switching operation must be performed in order regain the original functionality of the system. The circuit breaker can be stated as a special device which does all the switching operation which is required during the process of current carrying operation.
The main focus point of the report is to take into consideration different aspects which are related to the concept of the circuit breaker and fuses. The main factors which are majorly discussed are the property which are related to the circuit breakers with short circuit breaking and making capabilities.
The circuit breaker usually consist of moving contacts and fixed contacts. In the condition of “ON” relating to the circuit breaker these two contacts are very much physically connected to each other due to the applied mechanical pressure which is related to the moving contracts. There is an arrangement of stored potential energy in the concept of the operating system which is related to the circuit breaker which is directly released if the signal of switching is given directly to the breaker. These type of potential energy can be stored in the circuit breaker by different ways for example deforming of the spring metal by means of compressing air or by the concept of hydraulic pressure (Razi-Kazemi et al., 2014). It can be stated here that whatever may be the potential energy it should be always released during the aspect of operation. The aspect of the release of the potential energy can be considered to be making sliding relating to the moving contact at a speed which is extremely fast in manner.
All the circuit breakers related to short circuit breaking consist of an operating coil (close coil and tripping coil) whenever this type of coils are directly energized by the switching pulses and the plunger which are placed inside them would be displaced. The attachment of the operating mechanism which is related to the circuit breaker is directly attached to the operating mechanism which is related to the circuit breaker (Razi-Kazemi, 2015). This concept result in the aspect of mechanically storing of the concept which is related to the potential energy in the breaker mechanism which is directly released in the form of kinetic energy. After the aspect of the cycle completion the potential gain of energy again is maintained in the operating mechanism of the circuit breaker by means of spring charging motor or the air compressor or by any other forms. The implementation of the circuit breaker is based on the aspect of the functionality of the sector which is being focused upon. The main concern sector is the section of the circuit breaker which is being implemented. There can be different scenario which can be related to the concept of the different devices which should be kept secured in a manner of securing the circuit (Peng, Husain & Huang, 2015).
There are different types of circuit breaker which can be implemented according to the requirement and the system in which it would be implemented. The following are the basic division which can be done relating to the type of the circuit.
In some of the cases it is seen that the circuit breaker does not work according to the functionality of the system due to the factor that most of the current which are indulged into the circuit are broken down periodically. The main aspect which is related to the breaking of the circuit is to resolve the current which flows into the circuit at one particular time.
The fuses can be considered as a current sensitive device which is designed basically for the purpose of serving as an intentional weak link in the electrical circuit. The main functionality which is related to the concept is to provide a mechanism of protection relating to the discrete components or of the complete circuit by means reliable meting under current overload conditions. There are few characteristics which are related to the aspect of fuses which can be considered as one of the most important factors which are majorly discussed below:
The property of the fuses can be directly related to the types of fuses and where it is directly implemented. There are basically two types of fuses which can be differentiated on the basis of input supply voltage.
There is a very little difference between the DC and the AC switches which are implemented in the DC and AC switches (Peng, Husain & Huang, 2015). In the DC system when the metallic wire melts due to the factor of the generation of heat by the aspect of the overcurrent, then the Arc is directly produced as it can be considered to be very much difficult to extend the arc because of the DC value being constant. It can be stated here that in order to decrease the fuse arching the DC switches are little bit bigger than the AC switches. This concept is beneficial in a way of increasing the distance which is between the electrodes to reduce the arc of the fuse.
On the basis of the operation the fuses can be divided mainly into two parts which include the one time use only fuse and resettable fuses (Xu et al., 2016).
One time use only fuse: The main aspect which is related to one time fuses contains a metallic wire which burns out when an over current condition is reached due to mismatched load or overload. The user have to manually replace these switches. It can be stated here that this type of switches are very much cheap is used in most of the electronic devices. There are different categorization of the onetime use only fuse which are stated below”:
The main use of the fuses can be related to the aspect of protection of the circuits and the components which are involved into the circuit. It can be stated in a real life scenario it can be stated that the current which is flowing through the wires may not be uniform throughout the process. In such conditions the device may get overheated. There can also be chances of the circuit getting caught into the aspect of fire if the fuses are not installed into the system. In recent times the concept of the circuit breaker is applying a vital role but it can be stated here that the aspect which is related to the fuses are also being installed in most of the system. The main advantage which can be achieved from the concept of the security of the circuit which can be easily achieved from the implementation of the fuses (Peng, Husain & Huang, 2015).
ANL can be considered as type of fuse which are mainly used in the car in the aspect of the audio system. The availability of the ANL/ANE fuses are available in different size. The only aspect which is a concern sector in this fuses is that it should be checked with the supply voltage into which it would be implemented (Li et al., 2016).
Conclusion
The report can be concluded on a note that the circuit breaker and the fuses play a very vital role in the concept of the any circuit in order to safe guard the circuit and protect the other components which are involved into the concept. In most of the cases it can be noticed that the aspect of the circuit breaker is implemented due to the factor of the precaution which can be achieved and it can be considered one of the most secured manners or process by which a circuit can be secured form different conditions such as over flow of current etc. In the above report focus in put on the aspect of how they can be implemented and what the properties which are attached with the concept. The implementation details of both the fuses and the circuit breaker are also majorly discussed in the report which would be giving a direct overview of the process that are involved into the fundamental working.
References
Deng, Y., Zhong, J., Tang, C., He, B., Liu, Y., & Gao, Y. (2017, October). Design and research of motor drive mechanism for high voltage circuit breaker. In Electric Power Equipment-Switching Technology (ICEPE-ST), 2017 4th International Conference on (pp. 899-904). IEEE.
Jo, J. Y., Yang, H. I., Ahn, K. Y., Park, Y. I., & Kim, Y. G. (2015, October). A study on the dynamic behavior of multibody dynamics model on vacuum circuit breaker: Operating characteritics improvement of the VCB using Taguchi method. In Electric Power Equipment–Switching Technology (ICEPE-ST), 2015 3rd International Conference on (pp. 50-53). IEEE.
Li, X., Wang, X., Rong, M., Gao, Q., Fu, Y., Yin, N., & Liu, S. (2016, September). Research on modeling and fault analysis of permanent magnet operating mechanism of vacuum circuit breaker. In Condition Monitoring and Diagnosis (CMD), 2016 International Conference on (pp. 526-529). IEEE.
Li, X., Wang, X., Yin, N., Gao, Q., Miao, S., Shan, C., & Huang, X. (2016, September). Simulation on failure analysis of vacuum circuit breaker permanent magnet operating mechanism based on three-parameter method. In Power System Technology (POWERCON), 2016 IEEE International Conference on (pp. 1-6). IEEE.
Peng, C., Husain, I., & Huang, A. Q. (2015, March). Evaluation of design variables in Thompson coil based operating mechanisms for ultra-fast opening in hybrid AC and DC circuit breakers. In Applied Power Electronics Conference and Exposition (APEC), 2015 IEEE (pp. 2325-2332). IEEE.
Peng, C., Husain, I., Huang, A. Q., Lequesne, B., & Briggs, R. (2016). A fast mechanical switch for medium-voltage hybrid DC and AC circuit breakers. IEEE Transactions on Industry Applications, 52(4), 2911-2918.
Peng, C., Song, X., Huang, A. Q., & Husain, I. (2017). A Medium-Voltage Hybrid DC Circuit Breaker—Part II: Ultrafast Mechanical Switch. IEEE Journal of Emerging and Selected Topics in Power Electronics, 5(1), 289-296.
Razi-Kazemi, A. A. (2015). Applicability of auxiliary contacts in circuit breaker online condition assessment. Electric Power Systems Research, 128, 53-59.
Razi-Kazemi, A. A., Vakilian, M., Niayesh, K., & Lehtonen, M. (2014). Circuit-breaker automated failure tracking based on coil current signature. IEEE Transactions on Power Delivery, 29(1), 283-290.
Tobias, J., Biasse, J. M., Picot, P., Perrin, D., Bonjean, M., & PUJADAS, E. (2015, June). Impact of operating mechanism type on MV vacuum circuit-breaker reliability. In CIRED Conf.
Wen, W., Huang, Y., Al-Dweikat, M., Zhang, Z. A., Cheng, T., Gao, S., & Liu, W. (2015). Research on operating mechanism for ultra-fast 40.5-kV vacuum switches. IEEE Transactions on Power Delivery, 30(6), 2553-2560.
Xu, B., Ding, R., Zhang, J., Sha, L., & Cheng, M. (2016). Multiphysics-coupled modeling: Simulation of the hydraulic-operating mechanism for a sf6 high-voltage circuit breaker. IEEE/ASME Transactions on Mechatronics, 21(1), 379-393.
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