The Working Principle ELCB

* With the help of toroid, inflows than outflows
* When the balance (there is no residual current or leakage current), then there will be changes
* If there is a residual current that exceeds the rated residual operating current, it is because the imbalance of inflow and outflow will cause the flow flux in the toroid which causes the circuit to the circuit that is connected to the magnet that "holding" a bar that has a (spring)
* Due to changing currents cause the magnetic equilibrium, then the bar will open with the help of a Per

Type of Electrical Power

An AC power source out electric power in the form of "Power On" and '"Reactive Power".

 

* Power On (dalamWatt) are:
Electrical energy needed to be transformed (converted) into other forms of energy: mechanical energy, thermal energy, light.

* Reactive Power (the VAR) are:
Electrical energy is required for the formation of the magnetic field is required 'by the equipment that works with the system of electromagnetic (inductive equipment). Without these magnetization currents of electricity can not flow through the transformer core or through the air gap induction motors. Both these resources form the total power called the "Real Power" (in VA).

Basic Electrical Formulas

Basic Electrical Formulas
 
● V = I x R (Volt).
● P (1 phase) = V x I x cos φ = I ² x R x cos φ (Watt).
● P (3 phase) = √ 3 x VL x IL x cos φ (Watt).
 
Description:
● V = Voltage (Volts) Æ eg: 220 volts.
● I = Current (Ampere).
● R = Resistance (Ohm).
● P = Power (Watts).
● VL = each phase Voltage (volts) Æ eg: 380 volts.
● Line IL = Current (Ampere).

Basic Electrical Theory

Before we discuss the problem of power distribution, power failures and protection, we will repeat the basic theory of electrical problems. Basic Electrical Theory In the discussion it will be reminded again the problem of electricity formulas will often we meet and discuss problems in the operation of a power failure protection, including:

● Basic Electrical Formulas.
● Transformation of the transformer.
● Types of Electric Power.
● Types of Electric Disturbance.