definition, working principle, test operation, rating of rccb, types of rccb, connection, advantages and disadvantage.

  

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  ELCB IS Nothing But An Earth Leakage Circuit Breaker. RCCB is an updated version of elcb. The Current Operated ELCB Device If Called As RCCB.

  RCCB CONSISTS of CBCT (Core Balanced Current Transformer), Relay Operating Coil, RCCB Incoming and Outgoing Terminal, Trip Mechanism, ON/OFF Handle, and Test Switch.

  CBCT: Core Balanced Current Transformer is used to see the unbalance Current Flow in the Circuit. If unBalance detect, the ct provide the unbalance between the feature,

  Reaches to 30mA.

  

  Trip Mechanism: Trip Mechanis is using to try the circuit during fault condition.

  On/off switch: The handle is used to switching on/off the rccb.

  flow from line to grow. The then rccb trip the circuit.

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  30ma. Generally, RCCBS Are Haveing Rated Between 30MA TO 300MA (0.03a to 0.3a). So the best choice, for electrical shock protering is 30ma rccb.

  Three Different Type RCCBS Are Classified According to Types of Source Use.

  Type AC: only ac source can be used

  Type A: Ac source + Pulsating DC Source Can Be Uset

  Type B: AC As Well As DC Can Be used

  Cannot be used for the problem loads.

  It is using to protrly,
The main purpose rccb is to protect

RCCB Do Not Have Short Circuit Protection
RCDS Do n’t Offer Protection Against Current Overloads
Nuisance tripping of rccb.
RCD Will Not Protect Against A Socket Outlet Being Wired with ITS LIVE and Neutrals Terminals The Way Way Round.
shock.
RCCB is Higher Cost. Typically A Hager Make 300MA 63A RCCB HAS Rate of RS 7000/-

  Rccb are generally used with the combination of mcb, but you should connect the mcb before rccb. BeCAUSE ..

  Case 1: MCB is connected beface RCCB:

  

  Case 2: MCB is connected after rccb:

  Will be remaining in the line. That’s why mcb should be connected rccb before the rccb.

  It is now possible to get an MCB and rccb in a single unit, Called an RCBO. Replating an Mcb with an RCBO of the Same Rating is generally safe.


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