The automatic phase changer design was implemented in three units are as given. Automatic phase selector from any available phase youtube. The design and construction of a three phase automatic. Din rail mounting phase selector is the protection relay developed by proton power control to provide automatic switching between the r,y,b phases for providing one of the live phase supply uninterruptedly. The unit offers following protections along with 3 digit display showing rn,yn,bn voltages in scanning mode with. Manufacturer of automatic phase selector three phase automatic phase selector, electronic automatic phase selector offered by roshan engineering corporation, chennai, tamil nadu. The scope of the project covers aspects like the features of automatic three phase selector, its applications, and its operations. This project work is on the design and construction of automatic phase selector and changeover switch for 3 phase power supply. We aimed at presenting a practical aspect of the subject and then providing the argument necessary for a thorough understanding. The basic aim of the design and construction of this three phase automatic phase selector is to demonstrate how contactors can be used to switch in between three lines or phases e.
The automatic three phase selector is a system that compares the voltage of the other two phases using a comparator circuit and if the voltages are not available, the system changes over from public supply to generator. The system involves automatic changeover between the utility power supply and an auxiliary power supply generator. However, this paper focuses on the design of a phase selector using automatic. Index termsactive phase selector, arm 7 microcontroller, single phase supply, etc. Explanation of the working and operation of star delta. Nov 25, 2015 basically, there could be two type of phase changing device, one could be an automated one with a digital numeric relay for automatic change over and the another one is a basic manual one which have to be operated by a human. Apr 26, 2017 for more information please visit to 8421218893. But it is cost effective and also time consuming as. Simulation of an automatic phase changer apc circuit was performed in this project. In three phase power system 3 inputs of apc circuit are connected to three. Automatic three phase selector with power factor improvement. A microcontroller based automatic 3phase selector for load. Design and construction of automatic three phase power. So maximum capacity is 12a calculation of power supply there must be some information available in design of transformer 1 p out.
Pdf this project work is on the design and construction of automatic phase selector and changeover switch for 3 phase power supply. The design and construction of a three phase automatic phase. Design and implementation of a 3phase automatic power changeover switch atser a. The 3 phase automatic voltage selector system uses reliable electricalelectronics components such as relay transformers, contactor, diode capacitor, resistor and other switching component. Download as pptx, pdf, txt or read online from scribd. Generally distribution of electricity use in 3 phases 4wire system. Automatic active phase selector for single phase load from. A country like nigeria, where total power generation is less than one quarter of total demand, means of augmentation and smooth operation cannot be over emphasized. Automatic phase selector three phase automatic phase. Similarly, the automatic phase changing of the remaining two phases, through yellow phase and blue phase, b works accordingly. Automatic active phase selector 7154 words bartleby.
The operation of this device is that when there is a failure in any of the each line thereby leading to a no output voltage, it select automatically to. Industries require three phases power to run their machinery. Automatic phase selector, power failure, single phase load. Abstract in three phase equipments, if supply voltage is low in any of the one phase. The 3 phase automatic selector is a device that does the automatic switching of a three phase supply without human intervention.
Design and construction of automatic three phase power system. Pdf design of automatic phase selector from any available. The operation of this device is that when there is a failure in any of the each line thereby leading to a no output voltage, it select automatically to other phase without time delay. This is achieved by automatic changeover of the load from the missing phase to the next available phase in a 3 phase system. The block diagram of the project and design aspect of independent modules is considered. Pdf this project work is on the design and construction of automatic phase selector and changeover switch for 3phase power supply. A lasting solution is vested on alternative use of the renewable energy source, a project that is yet to be. Automatic phase change gives the output on all three phase if either 1 phase is present and reselect its original phase after the resumption all all phases. Detailed methodology to be used for carrying out the project. Automatic source changeover with current limiter havells india. Auto selection of any available phase, in 3 phase supply. Pdf design and simulation of automatic phase selector.
Design of automatic phase selector from any available three. It provides a means of switching from one phase of ac mains to. We offer wide range of automatic phase changers, which are manufactured by qualified and skilled professionals and available at very reasonable prices. We introduce auto phase selector unit for those equipment whose supply is single phase. Automatic phase changer automatic three phase changer. According to the block diagram the three phase supply is given to the change over. Automatic three phase selector with power factor improvement is designed to solve these two issues so ef. Automatic changeover shifts to generator load automatically after the absent of all three phases of mains and when the generator is started. It is useful in homes to militate against faults arising from overloading on a particular phase or from outright phase off. Some of them require continuous \ uninterrupted power to maintain their data. The authors in 4 designed and implemented a three phase automatic change over switch with generator control mechanism to provide an automatic switching mechanism that transfers the consumer. Automatic electronic healthy phase selection relay pef301 features. In the construction work, an ordinary level knowledge of electronics principles are observed. Mar 01, 2017 single phase to 3 phase converter, choosing a backup generator plus 3 legal house connection options transfer switch and more duration.
The automatic transfer switch embedded with a phase selector comprises of a monitoring unit which monitors the. Design methodology the methods and procedures involved in the design and fabrication of the automatic transfer switch with three phase selector that gives a single output involves the following. It is an electrical circuit capable of comparing three phases and switching over of the phases automatically. Constant supply of power is the wheel of growth to any nations economy. In this research, a 3phase automatic power change over switch has been designed and. Auto selection of any available phase, in 3 phase supply system. Pdf design and simulation of automatic phase selector and. Design and implementation of a 3phase automatic power change. Solomon3 1, 2, 3department of physics, college of science university of agriculture, nigeria. In designing it, various electrical and electronic components were used.
This is a technical report presented on the design and construction of an automatic three phase selector. Automation 3 phase selector switch has an input of 3 phases from phcn but has one output that supply current to the load. System design analysis, components used in the design and construction of the automatic three phase selector, the design topology, the power supply block, the relays switches, design of the circuit, work of lm 741 comparator, comparator using operational amplifier and. Automatic phase selector controllers the universal automatic electronic phase switch single phase automatic throwover breaker is designed to supply an industrial appliance single phase 220v50hz load from three phase four wire mains 3x380 n in order to maintain uninterrupted power supply of essential single phase loads and protect them against unallowable voltage variations in the mains. Design and construction of automatic phase selector chapter one introductionas the growing population of human race widens the gulf between energy supply and energy demand, the imbalance in energy availability sent researchers into excavating for a way of settling this age long squabble. It is also shows the working and operation for different changeover switches wiring connections like, single phase manual changeover switch with generator, three phase manual transfer switch connection with generator as well as single phase and three phase automatic transfer switches connections to the 1 and 3 phase generators and main fuse board. Keywords automatic phase selector, power failure, single phase load. How to use the 3 phase change over switch in my home quora. The designed circuit and the truth table for the three phase power selector are shown in figure 3 and table 1 respectively.
Automatic phase selection page 3 hardware description introduction. The automatic transfer switch embedded with a phase selector comprises of a. The automatic three phase power system selector was designed and constructed. Conclusion the automatic phase selector was designed and constructed. The single phase supply is selected automatically from three phases supply. Digital automatic phase selector relays, manufacturer. It automatically switches to the phase in which the power is available. This instrument is capable of producing 3 phase ac voltage with phase shifting arrangement between the phases simultaneously.
Design and construction of automatic three phase selector. Design and construction of automatic phase selector project. Automatic phase selector controllers automatic electronic. Finally, it covers the importance on the need of automatic three phase selector and contributions toward a greater sharing load balance and a better three phase power distribution. Mbaocha christian says in the paper smart phase changeover system with at89c52 microcontroller. Automatic phase selector controllers the universal automatic electronic phase switch singlephase automatic throwover breaker is designed to supply an industrial appliance single phase 220v50hz load from three phase four wire mains 3x380 n in order to maintain uninterrupted power supply of essential singlephase loads and protect them against unallowable voltage variations in the mains. Introduction the project is designed to provide uninterrupted ac mains supply i. Automatic phase selection block diagram of automatic phase selector system page 4 the main blocks of this project are. We manufacture high quality auto phase changer, which is automatic and works without any interruption. The circuit diagram of the designed three phase power selector input red phase, r input yellow phase, y input blue phase, b output voltage 0 no supply 1 0 phase r 0 1 0 phase y 0 1 phase b 0 1 phase y or b 1 0 phase r or b 1 1 0 phase r or y 1 phase r or y or b iv. Instant automatic phase change when any phase fails. A rotary switch will be provided to select the phase angle in lead or lag in steps of 15 degree.
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