6-10 kV The complex switchgear КРУН type for outdoors

6-10 kV The complex switchgear КРУН type for outdoors

КРУН (complex switchgear for outdoors) is designed for receiving and distribution of AC 50Hz three-phased electric power, 6 and 10 kV rated voltage, and for equipping switchgears and substations for 6 and 10 kV voltage.

THE BASIC TECHNICAL DATA

The parameter naming

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, 1600

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

12,5; 20; 25; 31,5

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

20

Peak impulse withstand current of vacuum breaker cabinet, kA

52

The rated current of main circuits of load switchers cabinet, A

400; 600

The rated disconnection current of load switchers cabinet, A

630

Thermal stability current of load switchers cabinet (short-time current), kA

20

Peak impulse withstand current of load switchers cabinet, kA

51

Dimensions, mm:

   width

1000 (1200)

   depth

1300 (1450)

   height

2700

The thermal currents time of passing, sec:

for cabinets with vacuum breaker 

3

for cabinets with load switchers

1

Current transformers rated current, А

50; 75; 100; 150; 200; 
300; 400; 600; 800; 1000;

Busbars rated current, А

630; 1000;

Busbar bridges rated current, A

630; 1000

The auxiliary circuits rated viltage, V:

- protection, operation and sigaling circuits DC and AC, V

110, 220

- voltage transformers circuits, V

100

- auxiliary transformers circuits, В

220, 380

Lighting circuits

- inside КРУ cabinet, V

24 , 36 ,42

 


КРУН is welded steel structure with doors to service the device. For two-sided service and easy access to the equipment inside, the doors in the cabinet are located opposite to each other. КРУН cabinet is divided into two parts, separated by a partition. Control devices, instrumentation, measurements and alarms are located in the voltage control compartment. In the high-voltage compartment a various devices/equipment can be mounted, depending on the purpose of КРУН switchgear.