EFO Elektrik Malzemeleri San.ve Tic.Ltd.Şti. Tel : 232 376 83 05 (Pbx) Fax : 232 328 01 46 www.efoelektrik.com e mail:efo@efoelektrik.com MV Indoor Disconnectors IEC 62271 102
EFO indoor disconnectors are mechanical switches that,used in MV distribution systems for opening and closing of outdoor lines without current.they are producing according to IEC 60129 and IEC 62271-102 with ISO 9001 quality assurance system. EFO M.V outdoor disconnectors have TSE certificates. Technical and Constructional Features: - Type tests performed acc. to IEC 60129 and IEC 62271-102 - Frame is hot deep galvanized. - Porcelain and epoxy resin insulators are J type and creepage distance 12 mm/kv - Fix and moving terminals are made of electrolytic copper and silver plated so power lost minimized. - Disconnectors are delivered in wooden case with hand drive mechanism. - There are corrosion resistive materials used between frame and shafts. - There are double springs where fixed and moving terminals in touch so that contact resistances are minimized. - According to customers request earthing switches can be located outgoing or incoming side Rated voltage kv 36 / 24 / 17,5 / 12 Rated nominal current A 630 / 1250 / 2500 Rated frequency Hz 50 Number of poles pcs 3 Rated short-time withstand current ka 16 Rated duration of short-circuit s 1
TYPES Indoor Disconnector (DNA) Indoor Disconnector with Earhting Switch (DTA) On request earthing switch can be located outgoing or incoming side Indoor Disconnector with Fuse Base (DSA) Indoor Disconnector with Fuse Base and Earthing Switch (DSTA) On request earthing switch can be located outgoing or incoming side
Operating of indoor disconnector There is two way of operating; - Operating with manuel mechanism from front of panelboard - Operating from main shaft of disconnector Working with manual drive mechanism - This is used for operating from front of panelboard. - There can be coil (bobin) for electromagnetic lock.coil voltages can be 24VDC,48VDC,110VDC, 220VDC,220VAC. - Auxilary switches can be used for signal of disconnector positions. Auxilary switches 2NO+2NC or 4NO+4NC. Auxilary switches Back side Pipe welding rod Adjustable arm Front side Electromagnetic coil Frame Operating arm Fixing holes to panelboard
Disconnector closed position at MV panelboard Disconnector opened position at MV panelboard
Dimensions of indoor type manual drive mechanism (DKMN)
36kV,630A,Indoor Disconnector (DNA) Dimensions (mm) (Please contact us for other rated voltages and rated currents)
36kV,630A,Indoor Disconnector with Earthing Switch (DTA) Dimensions (mm) (Please contact us for other rated voltages and rated currents)
36kV,630A,Indoor Disconnector with Fuse Base (DSA) Dimensions (mm) (Please contact us for other rated voltages and rated currents)
36kV,630A,Indoor Disconnector with Fuse Base and Earthing Switch (DSTA) Dimensions (mm) (Please contact us for other rated voltages and rated currents