EK Technologies

Intermediate switch An intermediate switch is a switch which permits the control of a lighting point from three positions. In order to control this lighting point from the three positions, the intermediate switch is connected together with two other 2-way switches. Application: it can be used in lighting a room or hall having 3 entrances , it can also be used in long corridors and staircases. We shall be looking at these connections. Connection diagram of intermediate switching Below is an illustration of the connection. The brown lines indicated on the diagram are the switching contacts. The switch labelled 2 is an intermediate switch . The figure below is the configuration of an intermediate switch. The switch labelled 1 and 3 in the first diagram are two-way switches.  Click here to know more about two-way switches . ON and OFF positions of intermediate switching ON positions OFF positions Staircase wiring layout using an inte...

Design and realization  of an automatic industrial sorting and counting machine In order to present this project, this dissertation is divided into five chapters.   Chapter 1: General introduction of the system. Chapter 2: Review of related literature on the project and contents related to the project. Chapter 3: Technological study of components (theoretical study, dimensioning of components and choice criterion). Chapter 4: System simulation and practical implementation. Chapter 5: Difficulties encountered, recommendations, future scope, and conclusion. Get complete PDF, simulation, codes, and PCB design. Link at bottom Problem s tatement  In modern industry, the sorting of items or products into various categories by an automated system is of great importance in order to have competitive advantages in production speed, efficiency, production value and labour cost. This project involves designing and realizing an automated industrial sorting mach...

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Direct On Line starting semi automatic method  This is one of the simplest method of starting motors by connecting them directly to the supply using a single contactor. Note that this method is limited in starting motors with power less than 10KW because of the high starting current which is about 4 to 6 times the nominal or rated current. In larger motors the Starting current is so high that it may destroy destroy the windings of the motor. So this starting method should not be used to start motors whose power is greater than 10KW. Other starting methods such as the Star-Delta starting, stator resistance starter, rotor resistance starting, star-delta resistance starting and auto-transformer starting can be used to reduce this high starting current which we shall later see. Now let us look at the direct on line starting. View of a direct on line starter Connection of Direct On Line starter Semi automatic starting method for One direction of rot...

Teleruptor (Teleswitch) A teleruptor   is an electrical device, which is used to control a lighting point from many positions (3, 4, 5, or more) unlike one way or two way switches. This device has an advantage over an intermediate switch (which can only control a lighting point from only 3 positions). Push buttons are used at the various control points to activate this device which puts on the lamp. We are going to see how to connect this device. Before that, it is very important to know its area of application. Application: The above mentioned advantage, permits this device to be used in: Long corridors, stair case, and halls or rooms with more than 2 entrance. Wiring a teleruptor Below is a view of a teleruptor showing its contacts labeled and also indicated in the wiring diagram. View of teleruptor and wiring The teleswitch is made up of a coil which energizes or dis-energizes thereby closing or opening its contact respecti...

Star delta starting One direction of rotation Power diagram Power diagram Star delta starting one direction of rotation  Control circuit Control circuit star delta starting one Direction of rotation Forward and Reverse rotation Power diagram Power diagram star delta starting forward and reversed rotation Control diagram Star delta starting control diagram for forward and reversed rotation Related and Recommended: Necessity of DC motor starters Working of DC motor

Connection of a two way (double) lighting system A two way lighting system is a system which can control a lighting point from two positions. In the connection of this system, two 2-way switches are required to control the lighting point from the two positions. Let’s now look at how the terminals of the 2 way switch looks like and how it is used.  It has 3 terminals (COM, L1, L2) see the figure below. One switch at position 1 and the other at position 2. Two 2 switch showing it's terminal Connection Now let’s look at the connection. From the above diagram, connect the COM of Switch 1 to the live, then L1 and L2 of Switch 1 connected to L1 and L2 of Switch 2. Then connect the COM of switch 2 to one terminal of the lamp and the other terminal of the lamp to the neutral and you are done with the connection. Connection of a 2 way lighting system Now let’s see how it operates to put on the lamp.    Pressing any of the switch puts ON the lamp...