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IED Electronics-Advanced. SCR. Learning objectives. Terminal Learning Objective Explain how SCRs are used in the electrical circuit of an IED Enabling Objectives Discuss how SCRs are used in an electrical circuit of an IED Identify the schematic symbol of a SCR
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Learning objectives • Terminal Learning Objective • Explain how SCRs are used in the electrical circuit of an IED • Enabling Objectives • Discuss how SCRs are used in an electrical circuit of an IED • Identify the schematic symbol of a SCR • Identify the legs of a SCR • Describe the function of a SCR • Determine how SCRs are configured in an IED circuit
Silicon controlled rectifier • SCR, Thyristor • Has “latching” feature when turned on • Very small amounts of current • Three legs • Cathode • Anode • Gate • T0-225 C106D A A K K A K G G G
Casio Watch • RamziYousef made them famous with his “Casio Watch Device.”
Philippines Dual SCR RCIED Isabella City, Basilan 31 May 2012
Summary • Terminal Learning Objective • Explain how SCRs are used in the electrical circuit of an IED • Enabling Objectives • Discuss how SCRs are used in an electrical circuit of an IED • Identify the schematic symbol of a SCR • Identify the legs of a SCR • Describe the function of a SCR • Determine how SCRs are configured in an IED circuit