Outdoor switchgears KRN-10(6) (LE-N) are designed to receive and distribute three-phase alternative-current of frequency 50 Hz and voltage 6 or 10 kV in earthed or insulated neutral systems

 

Applications

LE-N are used in distribution points of voltage 6 or 10 kV in structure of transformer substations 110/35/10(6) and 35/10(6) kV  

 

Reliability

Conforms to State Standard of Ukraine 31.2-35036863-007:2009

 

Referense designation structure:

    1     2  34   5    6

LE-N-Х-ХХ-ХХ ХХ

1 –Outdoor switchgear

2 – Rated voltage [kV]

3 – Lead-in type (V – overhead, K – cable)

4 – Outgoing type (V – overhead, K – cable)

5 – Main circuit scheme number

6 – Climatic region and placement category under GOST 15150

 

LE-N order designation example:

LE-N-10-VK-01 N1

 

Technical data of KRN-10(6) (LE-N)

Parameter	Values
Rated voltage [kV]	6; 10
Rated operating voltage [kV]	7,2; 12
Main circuits rated power [A]	630; 1000; 1600
Collecting buses rated current [A]	1000; 1600; 2000; 2500; 3150
Switch rated closing current [kA]	12,5; 16; 20; 25; 31,5
Short-time thermal current, 3s [kA]	20; 31,5
Short-time withstand current [kA]	51; 81
Secondary circuits rated voltage [V]: DC AC	110; 220 220
Auxiliary placed transformer rated power [kVA]	25-40