National key new product introduction MENPG electromechanical new household product guide plate 2 years 9th-63 type household A high pressure vacuum circuit 貉bookmark0 table 1 main technical parameters rated voltage 12kV rated current 4000A rated short circuit breaking current 63kA non-called breaking DC component 45% rated short-circuit breaking times 8 times 丨 2) sub-doors tS) rated closing current (peak) 160kA rated peak withstand current 160kA thermal stable current 63kA (3s) lmin power frequency withstand 48kV (inter-break) 42kV ( Interphase and ground) Lightning impulse withstand current (peak) 85kV (between fractures) 75kV (phase to ground) Mechanical life 10000 times weight 308kg This product is aimed at China's historical situation of relying on imports for large-capacity load circuit breakers. Digested and absorbed the new high-voltage electrical appliances developed and developed by self-S on the basis of the technology of German Siemens 3AF True Air Circuit Breaker (localized ZN12-10 series) introduced in 1983. The product combines large rated current (4A) and high breaking capacity (63kA): - in one, filling the gap in China's parameter grade.
The technical performance of this product is at the advanced level at home and abroad. Its successful development shows that the gap between the performance and production level of our vacuum circuit breakers and similar foreign products has gradually narrowed.
This product retains the advantages of 3AF (ZN12-10) and the versatility of components in design.
The arc extinguishing chamber is CuCr contact material, the cup-shaped longitudinal magnetic field structure, the butterfly mechanism and the circuit breaker adopt an integrated design, and the closed speed control system and the simple and reliable transmission system are the guarantees of high transmission efficiency and long mechanical life.
Because the whole set of equipment meets the requirements of the initial speed required for the longitudinal magnetic field vacuum arc extinguishing. It has strong breaking ability, short arcing time, slight contact burnout and long electrical life.
The double insulator support structure solves the electric instability of the 63kA breaking current; the use of the equalizing ring improves the uneven distribution of the electric field distribution of the double insulator structure.
Copper double-outlet and double-soft coupling conductive parts. The problem of heat generation for long-term operation of large currents has been satisfactorily solved.
The tie rod and the support adopt the composite insulation method, the base body is the pull-out rod, and the silicone rubber sleeve of the outer protective belt umbrella skirt improves the overall insulation level of the product, and can fully satisfy the use of the n-class pollution environment. Enterprise Name: Beijing Beikai Electric Co., Ltd. Company Address: No. 12, Guandong Store, Chaoyangmen, Beijing, China Postcode: 100020
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Jiangmen Xinhui Zhancha Metal Products Co,. Ltd. , https://www.zchardware.com