All posts by Book Of Engineering
DRAFTING WITH NANOCAD: HOW TO INSTALL, HOW TO DRAW A LINE
Without a CAD an engineer is nothing these days. If you want to design something you need these tools guys. On the other hand if you don’t want to pay lots of money and you want to try this programs or you have less design issues you may use AutoCAD like free programs. Because most of the time these programs are very expensive for students or for people that does not use all of the features of the CAD software.
Continue reading DRAFTING WITH NANOCAD: HOW TO INSTALL, HOW TO DRAW A LINEALL ABOUT MOTOR STAR DELTA CONNECTIONS
ALL ABOUT MOTOR STAR DELTA CONNECTIONS
Why do we use star delta connection?
When to use star delta connection?
What happens if we don’t pass to delta and stuck at star connection?
How much time duration do we need to set for conversion from star to delta?
Which connection to be used? Star or delta?
What if we run the delta motor in star connection?
What if we run star motor in delta connection?
Star connection
Resistance analogy
Delta connection
Trick about motor terminal boxes winding terminal orders
Star and delta connection voltage and current status
Selection of thermic overload relay and contactor
Why is it important?
Selection of a contactor
Closed transition star delta starters
Torque problem of the star delta starters
BOUYANCY, EUREKA CAN AND GETTING HEAVIER
BOUYANCY FORMULA FOR FLOATING OR SUSPENDED (BALANCED IN FLUID) OBJECTS
Think about an object floating in a water. There are two forces acting on the object in this case which are upthrust of water and weight of the object. These two forces must be equal so that the object can float in the water.
Continue reading BOUYANCY FORMULA FOR FLOATING OR SUSPENDED (BALANCED IN FLUID) OBJECTSSPECIFIC WEIGHT FORMULA
The formula for specific weight, or in other words weight per unit volume is;
Continue reading SPECIFIC WEIGHT FORMULADENSITY OF A MIXTURE EASY WAY TO CALCULATE FOR SAME MASS AND SAME VOLUME MIXTURES
If we mix two liquid with the same volume;
Continue reading DENSITY OF A MIXTURE EASY WAY TO CALCULATE FOR SAME MASS AND SAME VOLUME MIXTURESWEIGHT MEASURMENT WITH BALANCE
If we measure weight with balance like shown below;
Continue reading WEIGHT MEASURMENT WITH BALANCEVOLUME OF A CONE
Here is the formula for the volume of a cone;
Continue reading VOLUME OF A CONEHOW TO SELECT A LIGHT BULB
To select a light bulb very first step is defining the need for lighting. The lighting is categorised into two sections which are ambient lighting and task lighting.
Continue reading HOW TO SELECT A LIGHT BULB