Summary

 

    XGN15-12 box type fixed metal closed loop network switch equipment (referred to as the ring network cabinet), is the transformation of urban power grid and the construction of a new type of high voltage switch cabinet. In the power supply system, it is also used as an open load current and short circuit current, and the short-circuit current is closed.

The ring network cabinet is equipped with vacuum load switch, operating mechanism for spring operating mechanism, the agency can manually, or electric operation. Grounding switch and an isolating knife fitted with a manual operating mechanism, the ring network cabinet complete and strong, small volume, no combustion and explosion danger, with reliable "five anti" function.

Ring network cabinet for the exchange of 10kV, 50HZ distribution system, widely used in urban power grid construction and transformation projects, industrial and mining enterprises, high-rise buildings and public facilities, etc.. As a ring network power supply unit and terminal equipment, the power distribution, control and protection of electrical equipment, can also be installed in the box type substation. This ring network cabinet is in line with the relevant provisions of IEC420 "high voltage AC load switch - fuse combination electric appliance", GB3906-91 "3-35kV AC metal closed switch equipment".

   

   Model meaning

   Using environmental conditions

   

    3.1 ambient air humidity: ~+40 C -15 c;

    3.2 altitude is not more than 1000m;

    3.3 relative humidity: daily average value is less than 95%, the average monthly value is not more than 90%;

    3.4 non conductive dust, corrosive gases and water vapor sites;

    3.5 places where there is no fire and explosion danger;

    3.6 no frequent violent vibration place;

    3.7 earthquake intensity is not more than 8 degrees.

 

    Note: the user can negotiate with the company beyond the normal use conditions.

Ring network power supply principle

 

    Ring network power supply is generally composed of three basic units (see Figure 1) out of the line as a ring network cabinet unit. When any - line fault occurs, can be isolated in time, and by another unit to ensure the continuous power supply to the user, the user circuit loop network cabinet for the transformer protection and isolation, easy to maintain and repair.

    Ring network cabinet can be arbitrarily extended, and according to the user's requirements by the basic unit to constitute a variety of combination of programs.