PowerIT MV Live Tank Vacuum Circuit Breaker Model OVB-SDB, 15 kV / 25 kA g Designed and type tested as per IEC 62271-100/IS:13118 g Vacuum interruption g Porcelain clad construction suitable for outdoor applications g Operating mechanism available in two options – spring drive or magnetic actuator drive g Suitable for auto closure duty cycle of “O-0.3sec-CO-3min-CO” and “CO-15sec-CO” g Simple installation – structure mounted with option of extension abb Operating mechanism Spring drive Magnetic actuator drive g O-C-O operation without recharging g g Closing spring charged by motor in 15 secs g g Mechanical / electrical anti-pumping g g Provision for manual charging g g Suitable for high speed auto reclosing g Manual closing and tripping arrangement g Mechanical indication for ‘on-off’ and ‘spring charged’ g g g Very few moving parts Long mechanical life – averaging 1,00,000 operations Low energy consumption operating mechanism Self diagnostic electronic control unit to monitor and control all switching functions Suitable for high speed auto reclosing Manual tripping arrangement Mechanical ‘on-off’ indication Description Circuit Breaker type Rated voltage Power frequency withstand voltage Impulse withstand voltage Rated frequency Creepage distance to earth Rated normal current Rated breaking current Rated short time withstand current Rated making current First pole to clear factor Duty cycle Opening time Total break time Closing time Reclosing time No. of breaks per pole Weight Dimensions W x H x D Rating OVB-SDB 15.20.25 15 kV 50 kVrms 110 kVpeak 50/60 Hz 450 mm 2000 A 25 kA 25 kA for 3sec 62.5 kApeak 1.5 O-0.3sec-CO-3min-CO / CO-15sec-CO 40 +(-) 10 msec 55 +(-) 10 msec 65 +(-) 10 msec 300 msec 1 600 kg 1350 x 3100 x 900 mm (with CT structure depth - 1800) Subject to change in the course of technical development. Technical details Data and illustration shown during disengagement. ABB Limited Power Technologies – Medium Voltage Equipment Plot No. 79, Street No. 17 MIDC, Satpur, Nashik 422 007 Tel: +91 253 2351095-98 Fax: +91 253 2351860, 2351267 e-mail : rajesh.kotak@in.abb.com ABB Limited Exports Marketing Office: Maneja, Vadodara 390 013 Tel: +91 265 2642141, 2642142 Fax: +91 265 2642147 e-mail: pt-exports.inabb@in.abb.com 1VDS28005-YN 09/2003/1000 abb