KYN28-24 metal-Clad Movable AC metal-Enclosed Switchgear (hereinafter referred to as the switchgear) is suitable for the electric power system with indoor three-phase of 50/60Hz and rated voltage of 24KV, and mainly applies to
Electric power plants, substations, industrial and mining establishments, as well as high-rise buildings for receiving and distributing the electric energy and controlling, protecting, and monitoring the electric circuits. Position by grounding switch, prevention of closing of grounding switch with electricity, and prevention of mistaken entrance into the electrified compartments etc. KYN28-24 switchgear is equipped with middle-placed high-voltage vacuum circuit breaker and fixed-sealing vacuum switch of ZN73 series with excellent configuration performance. The switchgear secondary circuit is equipped with advanced and reliable control and protection components; And the busbar adopts the insulation method with heat-shrinkable insulation materials or epoxy coating to optimize the electrode shape with compact structure of cabinet. KYN28-24 switchgear is the power distribution equipment with advanced technology, stable performance, reasonable structure, convenient use, as well as safety and reliability.
1.3 Environmental Service Conditions
1.3.1 Regular Service Conditions
A) Environmental Temperature: Maximum Temperature: +40, Minimum Temperature: -15, and the average value tested within 24h shall be less than 35.
B) The humidity conditions are as follows:
The average value of daily relative humidity shall be less than 95%;
The average value of daily vapor pressure shall be less than 2.2kpa; The average value of monthly vapor pressure shall be less than 1.8 kpa; And the condensation will be occasionally appeared under these conditions;
C) The elevation shall be less than 1000m;
D) The ambient air shall not be obviously polluted by dust, smoke, corrosive and/or combustible gas, vapor or salt mist;
E) The vibration or ground movement from the switchgear and control equipment can be neglected;
F) The electromagnetic influence amplitude induced in the secondary system shall be less than 1.6KV.
