Automatic Two Phase Changer Over
Review: 5 - "A masterpiece of literature" by , written on May 4, 20020
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Automatic Two Phase Changer Over

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  • Product SKU: LGEE014
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Highlights
  • Product Code: LGEE014
  • 20% Deposit On Ready made kit
  • Handmade
  • Make in India
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  • Repair on manufacturing defect
  • Technical Support: Video support
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Details
  • Unsoldered PCB and all components to be soldered on PCB.
  • Includes all ICs, Connecting wires, and relay .
  • Documentation: PCB Specifications, Component list, and Circuit diagram.
  • Power Supply: No battery included, Includes 12 Volt DC adapter with the kit.
  • Video tutorial is available on YouTube.
  • One set of the readymade in working condition.
  • Includes all ICs, Connecting wires, and relay .
  • Documentation: PCB Specifications, Component list, and Circuit diagram.
  • Power Supply: No battery included, Includes 12 Volt DC adapter with the kit.
  • Video tutorial is available on YouTube.

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Specification

Description

Automatic Two-Phase Changer Over is user-friendly and easy to use. It saves time too. This project is also a prototype for the automation of the system. In the earlier days (even today at some places) the manual operations are frequent. When phase 1 goes off the person manually turns on phase 2. In the case of the electrical appliance control using automation causes more safety. This kit is a prototype for the same which is auto change over to phase2 when main phase 1 fails. In this kit, we are designing a circuit to control this. In case there are two phases, then the switching will be in the default phase.

The Automatic Two-Phase Changer Over Circuit is built around a transformer, capacitors, regulators, gate IC, and relay. Two identical sets of this circuit, one each for two phases, are used. The mains power supply phase 1 is stepped down by transformer to deliver 12V, 300 mA, which is rectified by a bridge rectifier and filtered by the capacitor to produce 12V DC regulated to 5V using 7805.

  • A similar process is done with phase 2 to get 5V. Proper logic is implemented using the gates IC7404 (NOT) and IC7408 (AND) so that only one phase is activated when both the phases are available.
  • if any of the phases go off the available phase is activated.
  • The output from the gate logic is fed to the ULN2803 IC relay driver to put on/off the phase supply (activation and de-activation.)


Physical Attributes

  • Dimensions (cm) L x W x H : 28 x 24 x 8
  • Weight (gm): 1000

Product Video

Customer Reviews

Based on 3 reviews
67%
(2)
33%
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N
Nand lal mali

This is very good product but look wise , seems used product and quite rough
Still magnets and other parts working perfectly fine.

M
MohamedAzharuhdeen
Finding Polarity Of An Electromagenet

Good introductory tool for an advanced technology

K
Kushal Kumar
Works well

i received my kit yesterday, the kit have all the components and parts as mentioned which are pretty exciting.