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The main scope of this project is to ensure the consumption of the power supply from mains, generator, inverter and solar sources, optimally by using an appropriate programmed microcontroller in the most effective way. Emergency power systems are the types of systems that may include lighting, generators, fuel cells and other apparatus, to provide backup power resources in crisis or when the regular systems fail. They find uses in a wide variety of settings from residential homes to hospitals, scientific laboratories, data centers, telecommunication equipment and modern naval ships. Some homebrew emergency power systems use regular lead-acid based car batteries. Reduction of the system's power consumption extends the battery life, reduces system temperature and the system's fan noise as well. The Power consumption can be greatly improved from a stock distribution configuration to a fine-tuned system. The main objective of this project is to provide uninterrupted power supply to a load, by selecting the supply from any source out of 4 such sources: mains, generator, inverter and solar sources, automatically in the absence of any of the source.

In this setup, we use four switches to create the corresponding breakdown of that power supply source. When any of the switches is pressed, it shows the absence of that particular source. Switches are connected to the microcontroller as input signals. The commands of the microcontroller are fed to the relay driver IC, which switches appropriate relay to maintain uninterrupted supply to the load. It is indicated by using a lamp which fed through a single power supply from the mains initially. On the failure of this mains supply which has been actuated by pressing the appropriate switch, the load gets supply from the next available source – for instance, an inverter. If the inverter also fails, it switches over to the next available source, and likewise. The current status of this process gets displayed on the LCD, which is interfaced to the controller. As it is not feasible to provide all the 4 different sources of supply as indicated in the block diagram, one source only with alternate switches are provided to get the same function.

This setup can be further enhanced by using other sources like wind power and also by taking into consideration the best possible alternative power source whose tariff remains lowest at any given time.

Automatic Power Source Selection.
Call/mail for Tech Support from 10 am - 7 pm IST.
Easy to use, Self-explanatory kit.
All-inclusive solution kit.
Extensive audio-visuals available.
Branding-free material.
Pre-programmed Microcontroller.
Hardware Requirements
  • 8051 series Microcontroller
  • Relay Driver IC
  • Relays
  • LCD
  • Lamp
  • Push Buttons
  • Transformer
  • Diodes
  • Voltage Regulator
  • Crystal
  • LEDS
  • Capacitors
  • Resistors
Software Requirements
  • Keil compiler
  • Languages: Embedded C or Assembly
Q & A
Q:  Does this project work on different supplies?
A:  We don’t supply all four sources of supply in the project but only one source with 4 relays which are capable of taking supply from 4 different sources. So you can use any other 3 sources if available at your end. Please watch the video carefully.
Q:  What is the concept behind this project?
A:  The concept behind this project is to provide uninterrupted power supply from any of the available supply
Q:  Can the lamp be replaced by any other load?
A:  Yes, any load with rating up to 200W can replace the lamp.
Q:  What is the family of microcontroller is used?
A:  A 40 pin microcontroller from 8051 family is used in this project.
Average Rating
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Showing 2 of 2 reviews
TDW, UK on 19th September, 2014, 06:39 PM

The product was as described a very interesting design and output with a very Unique coding done with the Microcontroller. The product arrived on time and
Well packaged. The sales team and technicians were always available to answer my queries. I will definitely recommend the company and the product.

paul, on 23rd April, 2013, 03:37 AM

The project is a challenging project.

Rating Breakdown (2 Reviews)

Edgefx Technologies,
1001 Bayhill Drive, 2nd Floor,San Bruno,
CA - 94066, United States of America.
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