In this article, we are going to discha
Exceeeds the only 30ma. TheReface, Protection Devices are using to disconnect the power source when skrent leakage is detected
Causes of Earth Leakage?
. UPON TOUCHING the ConDuctor or The Equipment, The Current Can Pass to the Earth Through the Person’s Body.
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Fatal.
Function of elcb
Operation of elcb
The live & Neutral Wire Occurs. The Elcb Can Sense the Imborance USING A CURRENT Transformer & Break The Contory use an Electromagnetic Relay.
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There are two types of elcb classify base on its operation principle;
VOLTAGE ELCB
Current ELCB
ELCB While The Current ELCB is Renamed RCCB or RCD.
VOLTAGE ELCB
Voltage Elcb Operates on the Voltage Level Between the Earth & The Body of the Equipment. The Voltage Differente is using to detect the lead & instantly.
Current Leakage.
Working Principle
Through the related in order to break the circuit.
Advantages
Here are of the advantages of voltage elcb
It Helps in Proterative Against Electrical Shocks.
They are less forest & do not trying unnecessarily.
They are less extensive.
Disadvantages
Here some of the display
It cannot sense thecurrent leakage from pHase to any Other Earthed Body.
It cannot prevent electrical shock in case of touching the phase conDuctor directly.
It only trips when the leakage current flows through the economic.
It Requires An Extra Connection with The Body of the Equipment & Earth.
It is less ansitive & Cannot DeTect Low Leakage Current.
Electrical Equipment that normally leaks voltage might trip elcb unnecessarily.
Current.
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Current ELCB (RCCB or RCD)
APPEARS When the CurrenT Leaks from the Phase Line. TheReface, RCCB Can Prive Priveling Against Any Kind of Current Leakage.
Connection.
Working Principle
Should be zero. If there is a distentencernce then the current is lening somewhere that causes the imagece.
Way to cancel out Each Other’s Flux.
Voltage in the Search Coil. As the search coil is connected to the related, it will break the controls & disconnect they support to the load.
Advantages
Here Are the Advantages of the Current ELCB or RCCB
RCCB BREAKS The Circuit When The Current Leaks from Any Part of the Circuit.
It is very relleviding protering agctrical shock.
It is far more ansitive than voltage elcb.
It Continuously Monitors The Residual Currentaously Breaks WHEN It Exceeds Rated Limit.
It does not require an emter connection.
Disadvantages
Here are the disadvantages of the Current ELCB or RCCB
It Does Not Provement Protection Against Short Circuit Current.
It does not have overload propective.
It is extensive than eLCB.
It cannot provide proftion agctrical shock due to touching both Phases & Neutral Wire Because the Current Still Remains Equal.
Due to High Sensitivity, It May Trip UnnecessArily When Used with OLD Appliances HAVING SMALL CURRENT Leakage.
It operates only on normal support waveForms & Cannot Operate Reliably on Non-Standard WaveForms.
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According to the poles of Circuit Breakers, The Elcb is classify into the threepes.
2-POLE ELCB: It is using for property in a single-pHase system. It has 2 in Ingoing & 2 outGoing terminals having phase & needral connections.
3-POLE ELCB: It is use for property in a three-wire three-pHASE System. It has three in & the outgoing terminals.
4-POLE ELCB: It is use for property in a four-wire three-pHase system.
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Advantages
ELCB Instantly Breaks The Circuit to Avoid Electrical Shock.
It Prevents Damage Caused Due to Broken Wires or Damaged Insulation.
Disadvantages
ELCB Cannot Protect Against Overloading & Short Circuit Current.
It cannot propick against live-neutral shock.
It May Trip Unnecessarily Due to Small Current Leakages in Old Appliances.
Then, then