The main features of the solid poles



 1), as compared with conventional high reliability assembled pole, 12kv embedded poles parts, the conductor faying surfaces, are connected with a greatly reduced number of fasteners, thereby simplifying the assembly of the main circuit part, is reduced main circuit resistance, improves the reliability of leading electrical circuit connection; 2), after the stable performance of the vacuum interrupter insulated by solid material embedded in an epoxy resin, the influence of the external environment of the pole vacuum interrupter chamber is minimized , The external sealing capacity of its external insulation can be free from dust, moisture, small animals, condensation and pollution of the impact, fully meet the GB / DL standard requirements of the two dirty areas climbing requirements; 3), the structure can be solid The arc chamber to provide more adequate protection, so that in the assembly or transport process from accidental mechanical collision; 4), miniaturization of epoxy resin as an insulating medium, phase spacing can be reduced, reducing the vacuum circuit breaker and its with a volume of distribution switchgear; 5), since the entire maintenance 17.5kv embedded poles is integrally cast member, the vacuum interrupter chamber is adequately protected, maintenance of the vacuum interrupter circuit breaker Providing maintenance condition; 6), more environmentally friendly solid letters column vacuum circuit breaker can replace SF6 gas to a certain extent as an external insulation required, and thus more environmentally friendly. 2. The core member of the vacuum interrupter of the vacuum interrupter excellent performance EVSP is a novel vacuum circuit breaker vacuum interrupter chamber, this vacuum interrupter chamber which has the following characteristics: R a unique contact design: At present, vacuum interrupters Most of the interrupters produced by the chamber manufacturers use cup-like longitudinal magnetic structures. The EVSP type vacuum circuit breaker uses an R contact with an internationally unique longitudinal magnetic structure.  

The use of R contacts and through the electromagnetic field optimization design of the vacuum interrupter has the following advantages: 1) breaking the short-circuit current when the formation of the longitudinal magnetic field, good thermal capacity. Thus strong short-circuit current breaking capability, renewed low, high reliability, for the first time to meet 100% of the rated short-circuit breaking current requirements; 2) R is a contact integrated manufacturing, high structural strength, do not open and close during Deformation, short circuit breaking performance and stability;

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Advantages of embedded poles

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First, modular design, simple structure, less removable parts, high reliability; Second, very high insulation rod capacity. It will surface insulation into volume insulation, compared to air insulation, reducing the impact of the environment, greatly improving the dielectric strength. It can make the circuit breaker size, is conducive to miniaturization of the switchgear. Previously, the general vacuum interrupter insulation shell exposed to the air, there is outside the dust, wet pollution problems. To reduce this effect, the vacuum interrupter housing is required to have sufficient length, which not only affects the miniaturization of the vacuum interrupter, but also the performance and reliability of the vacuum interrupter. The solid-sealed pole has the following advantages: Compared with the traditional assembled pole, the number of parts of the embedded poles is reduced greatly, the overlapping surface of the conductor is reduced from 6 groups to 3 groups, and the connection...
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A method for making a solid - sealed pole

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The utility model proposes a 12kv embedded poles which can more effectively use the usable space for the heat dissipation element in the solid sealing pole and has no influence on the insulation performance of the entire circuit breaker provided with the solid pillar. The invention comprises the following steps: a embedded poles , which comprises an upper outlet, a vacuum interrupter, a lower outlet, a movable conductive rod, a contact spring, a vacuum interrupter including a static end and a movable end, And the upper end of the vacuum interrupter is connected with the lower outlet and the movable guide rod, the movable conductive rod has an inner surface and an outer surface, and the inner and outer surfaces of the movable conductive rod are tapered And the movable contact rod is arranged between the lower outlet and the vacuum interrupter, and the finger spring is arranged in the lower outlet and surrounds the movable conductive rod, wherein the heat sink is arranged...
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What is the difference between a sealed vacuum circuit breaker and a non-solid type vacuum circuit breaker?

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What is a embedded poles ?    The vacuum interrupter and circuit breaker-related conductive parts at the same time embedded in epoxy resin such as easy solidified solid insulation material to form the pole, so that the entire circuit breaker pole into a whole component.    The 12kv embedded poles has the following two advantages:    First, modular design, simple structure, less removable parts, high reliability;    Second, very high insulation rod capacity. It will be insulated into a volume insulation, compared to air insulation, reducing the impact of the environment, greatly improving the dielectric strength.    It can reduce the size of the circuit breaker, is conducive to miniaturization of the switchgear.    Previously, the general vacuum interrupter insulation shell exposed to the air, there is outside the dust, wet pollution problems. To reduce this effect, the vacuum interrupter housing is required to have sufficie...
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