Isolator switch

Air break switch ISAR-S 36kV 200A with rod assembly 9-11m

Brand:
SMICO
Standard:
IEC 62271-103,IEC 60265
Electrical endurance:
100
Mechnanical endurance:
1000
Rated Voltage:
36KV
Rated current:
200A
Operating temperature:
-25....40℃
Storage temperature:
-25....70℃

Description

ISAR-S load-break disconnector switches are designed for low-load breaking overhead MV
electrical lines.
Equipped with an air-break technology system combined with an isolating switch in series,
this device provides visible opening and great safety in operation.
ISAR-S switches are suitable for overhead distribution networks up to 36 kV, and especially
those requiring a high level of insulation:
• No maintenance required.
• Easy pole top mounting.
• Line works can be carried in safe conditions thanks to the visible opening and high level
of insulation.
• A manual control mechanism is available with a rod assembly and padlockable lever.
• Whip breaking system.
• The ISAR-S switch control mechanisms are equipped with a tumbler spring system which
directly operates the mobile shaft.
The operating speed is not dependant on the operator.
• Height of the pole from 9 to 11 m.
• Synthetic Insulators designed with a central part in epoxy resin. The flexible skirts in over
molded silicone provide an important creepage distance and a good protection against
vandalism.

Features

Electrical endurance: 100 O/C
Mechnanical endurance: 1000 O/C
Operating temperature: -25 ... 40 °C
Storage temperature: -25 ... 70 °C

Technical characteristics

CHARACTERISTICS ISAR-S 24KV ISAR-S 36KV
Rated voltage(KV) 24 36
Rated current (A) 200/400 200/400
Breading capacity:    
Active load(A) 31.5 31.5
No-load transformer(A) 2.5 2.5
Close loop current(A) 200/400 200/400
Off-load line(A) 10 10
Rated peak closing capacity(KV) 12.5 12.5
Rated lightning impulse withstand voltage(KV peak)    
To earth and between poles 125 170
Across the isolating distance 145 195
Rated 1min power frequency withstand 50 Hz/1 min(KV)    
To earth and between poles 50 70
Across the isolating distance 60 80
Rated short-time withstand current(KA 1s) 5 5
Rated peak withstand current(KA) 12.5 12.5
Machanical endurance(cc) 1000 1000

In order to easy the logistics and the installation in difficult accessareas,ISAR-S load-break

switches are made up of three independent pre-assembled poles and single frame.

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