General Uses Electrical Formulas

Electrical Formulas:-

Electrical Current Formulas

Electrical Current Formulas in DC Circuit

I=V/R

I = P/V

I = √P/R

*Where

I = Current in Amperes (A)

V = Voltage in Volts (V)

P = Power in Watts (W)

R = Resistance in Ohm (Ω)

Electrical Current Formulas in Single Phase AC Circuit

I = P / (V x Cosθ)

I=(V/Z) …Where Z = impedance = Resistance of AC Circuits

Electrical Current Formulas in Three Phase AC Circuit

Ohm’s Law with simple example

The relationship between Current through and Voltage across a conductor was first discovered by a German scientist George Simon Ohm. This relationship is called Ohm’s Law and be stated as;

The Current “I” flowing through a conductor is directly proportional to the potential difference i.e. Voltage “V” across its ends provided the physical conditions (i.e. temperature, strain, etc) do not change.

In other words;

In any electric circuit, the Current “I” is directly proportional to the applied Voltage “V” and inversely proportional to the

What is Motor Efficiency & How to improve it?

Electric motor is a type of machine which converts electrical energy into mechanical energy using the interaction between magnetic field and current in its winding to produce/generate force in the motor. If we actually reverse this process then mechanical energy is converted into electrical energy and that is done by generators .Electromagnetism Is the main phenomenon that is used by motors.

WHY WE NEED BOILER WATER TREATMENT FOR POWER PLANT

Did you know that when water is converted to steam it expands in volume over 1,000 times and that it travels a down a steam pipe at over 100 kilometres/hr? Steam is a great way of moving energy and heat around a site from a central boiler house to where it is needed, but without the right boiler feed water treatment, a steam-raising plant will suffer from scale formation and corrosion. At best, this increases energy costs and can lead to poor quality steam, reduced efficiency, shorter plant life and an operation

Proedure of douing Boiler Performance Test

The performance test in a boiler evaluates the practically achievable boiler efficiency. Performance tests are also carried out to prove boiler guarantees. As guarantees involve contractual conditions, the procedure involved are more elaborate than the test for evaluating performance.
Conducting a boiler performance test can be for understanding the current level of performance of the boiler, for any trouble shooting of the boiler for performance deviations, and for proving the performance guarantees. These entire three requirements can be met by the procedure adopted for performance guarantee testing. Before

how much water forms during combustion ?

When you burn fossil fuels or hydrocarbon fuels, the exothermic combustion reaction of Hydrogen in the fuel and Oxygen in the air produces water. This water goes out as vapour along with the flue gas. In coal firing, moisture in the coal augments the water quantity.

The quantity of water produced is much more than the steam cycle make-up quantity in fossil fuel power plants. If one can economically capture this water and use it for steam cycle make up and other utility applications in the power plant, it can greatly

Boiler Tube Failure due to Opening a Drain Valve

We had just erected and commissioned a circulating fluidized bed boiler for an industrial plant in Southeast Asia. The boiler was a state of the art CFBC and almost the largest boiler in the region at that time. It was capable of producing nearly 400 tons per hour of steam for power generation and utility purposes, firing coal and biomass with superheated steam at a pressure of 140 bar and temperature of 540°C.