6-10 kV Freestanding, complexed, switchgear cabinet  ЯКНО (ПККЗ) type

6-10 kV Freestanding, complexed, switchgear cabinet ЯКНО (ПККЗ) type

Hi-voltage switchgears ЯКНО-6(10)-У1 type are designed for outdoor installation in the junction and trunk mains of mining quarries, as well as in places of connection to internal power mains of quarries, voltage 6(10)kV, 50 Hz.
ЯКНО - type switchgears can be made by request in movable version, mounted on sliding frames (skids), and in fixed version.
ПККЗ - type switchgears are made only in movable version, mounted on the skids.

THE BASIC TECHNICAL DATA

The parameter name

The parameter value

 

The rated voltage, kV

6; 10

Maximum operation voltage, kV

7,2; 12

The rated current of main circuits of circuit breakers cabinet, A

630, 1000

The rated disconnection current of main circuits of circuit breakers cabinet, kA

 20; 25

Thermal stability current of vacuum breaker cabinet (peak current), kA

20

Peak impulse withstand current of vacuum breaker cabinet, kA

52

The insulation kind

Air

The presence of conductors insulation

With bare busbar

Mains high-voltage connections version

A - air , C - cable

AA, AC, CA, CC

Service conditions

Two-sided

Dimentions, mm:

   Width

1000

   Depth

1250

   Height (with basket, with basket and skids)

2800(4000 ,4300)


ЯКНО and ПККЗ - type 6(10) kV switchgears are welded steel structures, made in a splash-proof housing and separated by a door and partitions into compartments. For two-way service and easy access to the equipment, the doors inside the cabinet are located opposite each other. The compartment door has a mechanical lock excludes the possibility of access to the compartment when the switches are turned on, and, vice-versa, to turn the switch on with the door open. The ЯКНО and ПККЗ compartments are equipped with vacuum circuit breakers, disconnectors, transformers (current, voltage, and their own needs). To ensure relay protection, microprocessor units or analog switches are used.