Solid Dielectric Ring Main Unit
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ENhanced TEChnology www.entecene.co.kr Solid Dielectric Ring Main Unit Version 1.0

Solid Dielectric Ring Main Unit ETRMU 12kV & 24kV Front Double Layer Side View : Busbar Connection Terminal Features Environmentally Friendly Solid Dielectric Application High Reliability by Vacuum Interrupter Improved Safety for operator by Double Layer Case 3-Position Disconnector Compact Size and Easy Installation Convenient Extension by Modula Structure Remote control Available for Distribution automation

Great Leading Solution I © Load break switch close/open lever 0 DS close /open lever: I nterlock between earth & close Three position lever © Fuse module close/open lever: Connection lever between main circuit © Open button of fuse module and main circuit: Open of load break switch © Live line indicator © Fuse and fuse compartment © Main Busbarconnection terminal Applied international standard High voltage switchgear and controlgear • Common specifications for high-voltage switchgear and controlgear standards-lEC 62271-100 • Alternating current disconnectors and earthing...

Operation panel Fused switch Cable switch O Switch Open/Close manual operation [ever © Switch Status indicator © Disconnector Earth-> Close, Interlock lever © Disconnector Status indicator @ Disconnector Earth, Open, Close manual lever Switch main feature . Load breaking . Earth, Open and Close (3 level operation] . Interlock between switch and DS • Switch and Disconnector status indicators Fuse switch O Fuse close lever © Fuse status indicator © Fuse open operation button © Disconnector Earth/Open/Close manual lever Fuse main feature • Load breaking . Button type fuse open device .Earth,...

Load break switch Fused switch

Fuse Module Combination with vacuum switch and current limit fuses • Fast interruption • Current limit . Cost efficient • Compact size • Safe isolation . Uniform electric field Potential in a vacuum interrupter Electric field in a vacuum interrupter Application Standards > IEC 62271 part: High voltage switchgear for high voltage switchgear and controlgear standards current circuit-breakers disconnector and earth switches switch-fuse combinations current switchgear-fuse combinations • DIN-43625 : High-voltage fuses; rated • Solid insulated frame

06 / 07 Circuit Breaker and Switch Module Structure Solid dielectric housing Vacuum interrupter Three position disconnector Extensible busbar system Integrated current transformer H.V Termination interface (IEEE 348. DIN 47636) Electrical field and magnet field Control technology Epoxy Resin Cast Technology 3D design and simulation Minimum number of parts Maintenance free Easy Integration of Automation Function Special Design Installation S D Cable Cross-section (mm2) D (depth) (mm) 35 725 50 to 70 800 95 860 970 95 to 325 S (Space between ETRMU and wall) : 500mm

ETRMU Single Line Diagram Cable Switch CFC-F Diagram Fused Switch CFC-C Diagram Circuit Breaker CVC-V Diagram CVC-F Diagram CVC-C Diagram Combination of RMU unit chart

PMA Operating (Circuit Breaker) / Switch mechanism Closing coil Operation of circuit breaker use PMA • An excellent characteristic of mechanical operating Specification permanent magnetic actuator Operating mechanism ■ Fuse section-Two position of open and close ■ Cable switch disconnector-Three position of close, open and earth

Controller and protection relay Control and Protection with metering and communication . Multi-Protocol Support -Point Remap & Reclass -Status invert function . Multiple Physical Layer Support -Ethernet (TCP-IP) -Fiber-Optic (Option] • Modem Support -Full & Half Duplex Modem -Dial-Up Modem (Option] . Time current curve editable • IEEE, IEC and 37 non-standard inverse time curves . Protective settings in nonvolatile memory during power failure . Time delay over current protection . Instantaneous over current protection . Negative sequence over current protection ■ Cold load pickup and...

10 / 11 Application Green Life Leisure Down-Town Residence ETRMU ETRMU ETRMU The ETRMU is compact combining functional units to enable connection, supply and protection of one or two transformers on open ring network By a fuse-switch combination By a circuit breaker with self-powered protection unit

Total number Solid dielectric Load break switch Circuit beraker Fused switch ^^^^^ ELECTRIC & ELECTRONIC CO., LTD. * Note. Product structure and arrangement shaLL be modified without notice