:: – variety "A" :: – variety "B" :: – variety "C" :: – variety "C2" :: – variety "D"


USAGE:

SRN-24 switch disconnector is used to switch on and switch off currents present in distribution network of medium voltage in range to 80A and is capableuting shot-circuit currents to 16kA.

 

We make switch disconnectors in the following varieties:

*For installation on reinforced poles, such as ŻN and BSW
– variety A – this type of a switch disconnector is installed at the top of a pillar
– variety B – this type of a switch disconnector is installed on the leg of a pillar under conduits


*For installation on rotatory poles, such as E, EM and EPV
– variety C – this type of a switch disconnector is installed at the top of pillar (on a cross-arm)
– variety C2 – this type of a switch disconnector is installed at the top of a double pillar
– variety D – this type of a switch disconnector is installed on the leg of a under conduits

 

TECHNICAL DATA:
– rated voltage                                                        – 24kV  
– percussive lighting voltage                                     – 125kV
– stable rated current                                               – 400A
– short circuit rated current 1s                                  – 16kA

– rated breaking current in circuit of small inductance – 80A

– rated breaking charging current

– rated breaking current of an earth fault current in condition of earth fault – 38A

– switch disconnector is equipped with extinguishing aerial chambers

 

The manufacture product consists of a connecting apparatus and strands.

The switch disconnector can be set in motion with:

a) a hand drive NO-1 to A and B varieties or hand drive NO-1/O to C, C2 and D varieties

b) a motor drive NKM-1 or NKM-1.3
The apparatus has got copper contacts with silver plating.
Moving contacts are equipped with elastic terminals securing against fracturing the supply conduit.
There is a possibility of completing an isolator with additional retaining insulators (IWSPE kit) or with overvoltage limiters (OPSPE kit).
The apparatus can be built in various insulators:
   – SRN-24 type – on insulators with silicon sheds
   – SRN-24cr type – on ceramic insulators

052411-SRN24n -p 058411-SRN-24cr-p