Indoor packaged switchgears KM-1 LE series (LE-M) are designed for working in three-phase alternative-current of frequency 50 Hz and voltage 6 or 10 kV in earthed or insulated electrical installations

 

Applications

LE-M are used in switchgears including installations with frequent switching using vacuum switches

 

Reference designation structure:

        1      2    3     4       5      6

LE-M-ХХ-ХХ-ХХ/ХХХХ ХХ

1 – Advanced package switchgear

2 – Rated voltage [V};

3 – Main circuit scheme number;

4 – Rated closed current [kA];

5 –Rated current [A]:

6 – Climatic region and placement category under GOST 15150.

 

Reference designation structure:

                                      1 2  3  4  5 

                                  SH Х-Х-Х-Х-LE

1 — SH — шафа КРУ;

2 — place apparatus type;

3 — rated voltage [kV];

4 —main circuit scheme number;

5 — rated current [A];

 

 

LE-М order designation structure:

LE-М-10-03-25/630 N3  SS U 31.2-35036863-009:2009
 

Technical data of КМ-1 LE (LE-М)

Parameter	Values
Rated voltage [kV]	6; 6,3; 6,6; 6,9; 10; 11
Maximum operation voltage [kV]	7,2; 12
Current type	alternative
Frequency [Hz]	50
Main circuits rated current [A]	630; 1000; 1600; 2000; 2500; 3150
Collecting buses rated current [A]	630; 1000; 1600; 2000; 2500; 3150
Rated closed rated current [kA]	20*, 31,5
Short-time thermal current [kA]	20*, 31,5
Short-circuit withstand main circuits rated current [kA]	51; 81
Second circuits rated voltage [V} - DC - AC	110; 220 220
Auxiliary placed power transformers rated power [kVA]	40
Fuse maximum rated current [A]	20
Fuses rated current [A]	2; 3,2; 5; 8; 10; 16; 20
No-load current with rated voltage: - 6 kV - 10 kV	0,6 0,4

 

Dimensions of LE-М

Dimensions [mm]
Width	Height	Depth
750; 1125	2150; 2220	1300; 1550