Types of Circuit Breakers [Based on Arc Quenching (Cooling) Media] 1. ACB: Air Circuit Breakers 2. ABCB: Air Blast Circuit Breakers 3. OCB: Oil Circuit Breakers 4. VCB: Vacuum Circuit Breakers 5. SF6CB: Sulphur-Hexa-Fluoride Circuit Breakers Usage: 3 Phase, 440V – Fitted in MSB / PDB 6. MCCB: Moulded Case Circuit Breakers (100-1000A) Usage: 3…