230 kV Line Differential Protection Using SEL-411L and SEL-311L Relays

#Protective #relaying #line #differential #SEL-411L #SEL-311L #230 #kV #substation

A 230 kV substation is undergoing a relay replacement project.  Westinghouse LCB II line differential and GE CEY line distance relays, including existing audio tone and transfer trip systems, presently protect 230 kV incoming transmission lines.  The replacement relays are SEL-411L and SEL-311L line differential relays, serving as primary and backup schemes using fiber optics to communicate with adjacent substation relays.  This presentation introduces the multifunctional SEL-411L and SEL-311L line current differential relays.  Line current differential theory is discussed as well as the operating principles of both relays, how they are similar, and where they differ.  Hardware, logic, settings, and example applications are presented.

Attendees may apply for 1.0 PDH upon completion of lecture for a cost of $9.00.
Certificates will be provided through the IEEE Certificates Program, accepted in all states.

Lunch will be provided complementary.

• Date: 25 Mar 2019
• Time: 11:45 AM to 01:00 PM
• All times are (GMT-05:00) US/Eastern
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• 1818 Market Street
• Philadelphia, Pennsylvania
• United States 19103-3616
• Building: Beneficial Bank Building/STV Incorporated Office
• Room Number: 14th Floor STV Conference Room

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• Phone: 856-986-1221

• Starts 10 March 2019 01:35 PM
• Ends 24 March 2019 03:00 PM
• All times are (GMT-05:00) US/Eastern
• 0 in-person spaces left!
• No Admission Charge

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