Factory-assembled switch-gear cells of one-sided maintenance with air insulation, enclosed in a metal jacket; the cells comprise permanently mounted switching devices rated at the voltage of 6 and 10 kV and are intended for operation in switch-gears of three-phase alternating current systems with the frequency of 50 Hz and with an insulated or grounded neutral.

Peculiarities

The cells are manufactured on the basis of welded structures. Rated values of operating parameters, design and circuit network make it possible to reach an optimum in implementing tasks in compliance with customers' requirements.

Design versions

with load-breaking isolator
with load-breaking isolator and fuses
with isolators
sectionalizing switch
with load-breaking isolator and current transformers
busbar bridges
with lightning arresters
voltage transformer and other designs according to request

Cell design

frame consisting of units of sheet metal and sections assembled with the use of welded joints and bolted connections
door made of sheet metal with a central lock
the door of the cell is fitted with a peephole protected by safety glass

Operation safety

high reliability at the expense of using standardized components and apparatus
cells have been tested in compliance with the state standards (GOST 14694 and GOST 1516.1)
all switching operations are conducted with the external door closed
spacious compartment of cable connections
availability of functional interlocking devices

Operation conditions

Climatic design of cells KCO ÓÇ; ÓÕË according to GOST 15150.

Cells KCO are mostly designed for installation indoors with draught ventilation and without artificial regulation of climatic conditions.

The maintenance environment should be explosion-proof, should not contain aggressive gases, vapors and chemical deposits, should be free of current-conducting dust and saturated vapor.

load-breaking isolator of BHÏÁ-10 type (spring drive)
load-breaking isolator of BHÏ-M type
isolator
grounding isolator
voltage transformers
fuses

Cell of KCO-396 series

Parameters Values Rated voltage, kV 6; 10 Maximum operating voltage, kV 6,9; 11,5 Rated current of main circuits, A 200; 400; 630 Rated current of collected buses, A 400; 630 Type of maintenance one-sided Degree of protection at the cell facade IP 40 Overall dimensions, mm 1000x1000x2080

Switching devices

load-breaking isolator of BHÏÁ-10 type (spring drive)
load-breaking isolator of BHP-10 type
isolator
grounding isolator
voltage transformers
fuses

load-breaking isolator, type of NAL, NALF, OK, OKD (manufactured by ABB EJF company, a.s.)
isolator
grounding isolator
voltage transformers
fuses