Tag Archives: calculate

EE07: DC MOTOR STARTING CURRENT, BACK EMF, ARMATURE CURRENT AT SPECIFIC SPEED CALCULATOR

SOURCE VOLTAGE:V

ARMATURE RESISTANCE:ohm

MOTOR SPEED CONSTANT:V/rpm     If you don’t know, you can find this. You need to divide voltage generated to speed at that voltage.

MOTOR SPEED: rpm


RESULTS

STARTING CURRENT: A

BACK EMF: V

ARMATURE CURRENT RUNNING AT :A

EE01 – 0,4KV SYSTEMS CABLE CROSS SECTION ESTIMATOR

Just enter distance and power to get cross sectional area and amperage estimation

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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.

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HOW 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.

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