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A K-59 outdoor cubicle switchboard

Description

A 6 (10) kV K-59 outdoor cubicle switchboard is designed to receive and distribute electric power of three-phase alternating current of an industrial frequency of 50 Hz and a voltage of 6 and 10 kV.

A K-59 outdoor cubicle switchboard is used to equip 6 (10) kV switchboards of different purpose substations, also for substations of oil, gas, coal, metal and machine-building industry facilities, substations of oil fields, in electric-power industry, for the needs of power stations, in distribution networks of the energy industry, city municipal networks, substations for power supply of agricultural consumers, as well as railway transport substations.

Technical properties
Characteristic
Value
Rated voltage at a frequency of 50 Hz, kV 6,0; 12
Rated voltage at a frequency of 50 Hz, kV 6,0; 12
Maximum operating voltage at a frequency of 50 Hz, kV 7,2; 12
Rated busbar current at a frequency of 50 Hz, KV 1000, 1600, 2000, 2500, 3250
Rated current of main circuits at a frequency of 50 Hz 630, 1000, 1600, 2000, 2500, 3150
Short-time thermal current of main circuits in case current flow time is 3 sec., kA: 20, 25, 31,5
Short time electrodynamic current of the main circuits, kA 51, 81
Rated breaking current of a vacuum switch at a frequency of 50 Hz 12,5; 16; 20; 25;
Climatic modification U1 and UL1
Sea level elevation, m 1000
The lower value of ambient air temperature, C -60
The upper value of ambient air temperature, C +40
Atmosphere type II
Seismic resistance 9 points
Dimensional specifications
Width, mm 750 (1125 - от 2500А)
Depth, mm 3105 - U1, 3225 - HL1
Height, mm 2720
Ingress protection rating of a switchboard cabinet according to GOST 14254, IP 54