Vakuumschaltröhre

Vacuum Interrupter Technical Specification of No. Main Technical SpecificationType TD29-12/1250-26.3ATD29-12/2000-26.3TD29-12/1250-31.5ATD29-12/2000-31.5A 1Rated frequency Hz50/60 2Rated Voltage kV15 3Rated short-time power-frequency withstand voltage (1 min) kV38 4Rated lightning impulse withstand voltage kV95 1Rated Current A1250200012502000 2Circuit resistance at lowest rated contact force mW≤17 3Rated short-circuit breaking Current kA26.326.331.531.5 4Breaking operations of rated short circuit breaking current Times30 5Rated short-time withstand current kA26.326.331.531.5 6Rated duration of short-circuit s3 7Rated peak withstand current kA67678080 8Rated short-circuit making Current kA67678080 9Rated breaking current of single capacitor bank A400 10Rated breaking current of back-to-back capacitor bank A400 11Rated operating sequence O-0.3s-CO-180s-COO-0.3(0.5)s-CO-180s-CO1Weight of movable parts kg1.0 2Closing force due to bellow and atmosphere N90±30 3Force required to hold contacts open at full stroke N185±45 1Clearance between open contacts mm8±1 2Average opening speed(average of first 75% of contact gap) m/s1.0±0.21.0±0.21.4±0.21.4±0.2 3Average closing speed(average of last 30% of contact gap) m/s0.8±0.2 4Rated added external contact final force N2200±2002200±2003100±2003100±200 Added external contact force at contact touch point 1500±1101500±1102200±1502200±150 For other technical parameters and the drawing, please contact me directly by email.