TD524A Vakuum Unterbrecher
Basisinformation
Modell: VITD 36/1250-20A
Produktbeschreibung
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ELECTRICAL RATINGS(3PHASE) SYMMETRICAL BASIS |
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| 1.Rated frequency | 50/60Hz |
| 2.Rated Voltage | 36/40.5kV,r.m.s |
| 3.Rated short-time power-frequency withstand voltage (1 min) | 70/95kV,r.m.s |
| 4.Rated lightning impulse withstand voltage | 170/185kV,Peak |
| 5.Rated Current | 800A |
| 6.Circuit resistance at lowest rated contact force | 20Micro ohms |
| 7.Rated short-circuit breaking Current | 18.4kA,r.m.s |
| 8.Rated short-time withstand current | 18.4kA,r.m.s |
| 9.Rated duration of short-circuit | 4s |
| 10.Rated peak withstand current | 46kA,r.m.s |
| 11.Rated short-circuit making Current | 46kA,r.m.s |
| 12.Max. Dc component | 40% |
| 13.*Rated breaking current of single capacitor bank | 630A,r.m.s |
| 14.*Rated breaking current of back-to-back capacitor bank | 400A,r.m.s |
| 15.Rated operating sequence | O-0.3(0.5)s-CO-180s-CO |
| MECHANICAL DATA | |
| 1.Interrupter Weight(Approx.) | 4.08kg |
| 2.Weight of movable parts | 2.1kg |
| 3.Closing force due to bellow and atmosphere | 17040N |
| 4.Force required to hold contacts open at full stroke | 32050N |
| MECHANICAL REQUIREMENTS(REF. VCB) | |
| 1.Clearance between open contacts | 151mm |
| 2.Average opening speed(average of first 75% of contact gap) | 1.50.3m/Sec |
| 3.Average closing speed(average of last 30% of contact gap) | 1.10.2m/Sec |
| 4.Rated added external contact final force | 2000200N |
| 5.Contact bouncing duration at closing operation | 2ms |
| 6.Closing and Opening non-simultaneity of three-phase Contacts | 2ms |
| 7.Maximum Rebound during opening | 2mm |
| LIFE | |
| 1.Electrical Life at Rated Normal Current | 20,000Operations |
| 2.Electrical Life at Rated Short Circuit Current | 50Operations |
| 3.Mechanical Life | 30,000Operations |
| 4.Contact Erosion Limit | 3mm |
| 5.Shelf Life | 20Years |
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1.Meets or exceeds the electrical endurance requirements of class E2 for autoreclosing duty per IEC 62271-200 and JB 8738-2008. 2.* Rated Characteristics to be given on request |
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Produktgruppe : Vakuum-Schaltkammer
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