VD4. Vacuum circuit-breaker

Transcription

1 VD4 Vacuum circuit-breaker

2 VD4. The economical solution in power distribution. Applications: Power stations Transformer stations Chemicals industry Steel industry Automotive industry Airport power supply Shipbuilding power supply Building power supply With its systematically developed technology, the vacuum circuit-breaker of type VD4 occupies a leading position in networks for electrical power distribution. The rated data are dimensioned to suit the users requirements. Designed for the operators, the VD4 circuit-breaker fulfils the high demands of users in all respects. 2

3 VD4. For every field of application. Vacuum circuit-breaker of type VD4 is designed for switching: short-circuit currents, cables and overhead lines under load and no-load conditions, transformers and generators under load and no-load conditions, ripple control systems, capacitor banks, and motors. 3

4 VD4. Vacuum circuit-breaker. In the circuit-breaker of type VD4, the complete pole and the maintenancefree vacuum interrupter form a positive unit. This is achieved by a specially developed casting technique in which the vacuum interrupter is directly embedded in epoxy resin to form a complete pole. Disruptive external effects on the switching element are therefore extensively precluded. For very high rated currents, rated short-circuit breaking currents and for rated voltages greater than 24 kv, the tried and tested assembled poles are still used. 4

5 VD4. The optimum concept. Higher reliability and availability and longer life with fewer fastening parts. Protection of the vacuum interrupters from impact, dust, and condensation. High dielectric protection of the vacuum interrupters without additional modifications. Ideal matching of the VD4 circuit-breaker with its power requirement, has been achieved by precisely controlled force transmission. This has made it possible to have only one type of operating mechanism for all the VD4 variants. The use of the same operating mechanism has the great advantage that even circuitbreakers manufactured relatively seldom, e.g. those with high rated currents or short-circuit breaking currents, have a tried and tested mechanism of which many thousands are in service. The vacuum circuit-breaker of type VD4 with manual mechanism is fundamentally suitable for autoreclosing; the version with motorized mechanism for multi-shot autoreclosing. In addition, the breaker can be fitted with all standard releases and auxiliary switches required for the particular switching function to be performed. 5

6 Rated voltage 1) kv 12/ Rated current A 630/ /1250 Rated short-circuit breaking current symm. 2) ka Short-circuit breaking current asymm. 2) ka Rated short-circuit making current 2) ka Rated short-circuit duration s Pol centre distance mm 150/ / / / / / /275 Weight kg 70/75 70/75 70/75 81/86 78/83 78/83 82/87 Pole embedded Pole assembled Rated voltage 1) kv 12/ / Rated current A /2000/ /2000/2500 Rated short-circuit breaking current symm. 2) ka ) Short-circuit breaking current asymm. 2) ka Rated short-circuit making current 2) ka Rated short-circuit duration s Pol centre distance mm /275 5) 210/275 5) 210/275 5) 210/275 5) Weight kg /155 6) 147/155 6) 147/155 6) 147/155 6) Pole embedded Pole assembled Rated voltage 1) kv Rated current A 1250/1600/ 1250/1600/ 3150/4000 4) 1600/2000/ 2000/ /3150 / ) Rated short-circuit breaking current symm. 2) ka Short-circuit breaking current asymm. 2) ka Rated short-circuit making current 2) ka Rated short-circuit duration s Pol centre distance mm 210/ Weight kg Pole embedded Pole assembled 6 1) Test voltages to VDE 0670, Part 1000, List 2 2) When the operating voltage is less than the rated voltage, the same values as for rated voltage always apply. Higher values in individual cases on request. 3) 40 ka for 12 kv only 4) Breaker with fan cooling 5) Pole centres 275 mm only for rated current 2500 A 6) Weight 159 kg for rated current 2500 A

7 12 kv, A, ka p H a b c d e 17.5 kv, A, ka mm mm mm mm mm mm mm kv, A,...25 ka p H a b c d e mm mm mm mm mm mm mm ) ) 1) Measuring point pole part. 12 kv, 1250 A, 40 ka p H a b c d e 12 kv, A,...40 ka mm mm mm mm mm mm mm 17.5 kv, A, ka ) ) 24 kv, A,...25 ka p H a b c d e mm mm mm mm mm mm mm ) 1) Breaker with heat-sink 616 mm 2) Breaker with heat-sink 661 mm 12 kv, A, 50 ka p H a b c d e 17.5 kv, A,...40 ka mm mm mm mm mm mm mm kv, 3150/4000 A 1),...50 ka p H a b c d e 12 kv, A, 63 ka mm mm mm mm mm mm mm 17.5 kv, 3150/4000 A 1), 40 ka ) 1) Breaker with fan cooling 2) Breaker with heat-sink

8 VD4. Vacuum circuit-breaker.

9 VD4. A leading edge product. Practically unlimited applications High reliability Extremely high availability Absolutely maintenance-free Extremely economical kv Upper contact terminal 2 Vacuum interrupter 3 Epoxy resin enclosure 4 Lower contact terminal 5 Flexible connector 6 Contact force spring 7 Insulated coupling rod 8 Opening spring 9 Shift lever 10 Drive shaft 11 Release mechanism 12 Mechanism enclosure with spring operating mechanism Shown: Vacuum circuit-breaker type VD4 in embedded technique 12 kv, 1250 A, 25 ka

10 Leaflet no. DECMS E Printed in Germany ( PPI) We reserve the right to make changes in the course of technical development. ABB Calor Emag Mittelspannung GmbH Oberhausener Strasse 33 Petzower Strasse 8 D Ratingen D Glindow Phone: +49(0)21 02/ , Fax: +49(0)21 02/ calor.info@de.abb.com Internet: