Indoor Type Air Insulated Sectionalizing Switch -25.8kV

  • Indoor Type Air Insulated Sectionalizing Switch -25.8kV
Key attributes
Brand ROCKWILL
Model NO. Indoor Type Air Insulated Sectionalizing Switch -25.8kV
Rated voltage 25.8kV
Rated normal current 200A
Series ZW32
Product descriptions from the supplier
Description

Product Details

Overview

This switch is 3 phases Air insulated sectionalizer for indoor private substation lines operating at a voltage up to 25.8kV, cooperating excellently with Recloser.It has been newly designed compact type by S&S for light-weight and high reliability.It is used under 4,000kVA normally (in case of abnormal condition, under 2,000kVA).

Unique and Field Proven Puffer and Heavy duty Tulip-Shaped Contacts made of arc resistant Cu-W tip ensures short arc-extinguishing time and more than 100times load current capacity.

The mechanism of very simple and reliable structure shows quick open and quick close operation with low tripping energy and is independent from operator's handling power or speed.
Control power supply is provided.(from 1 Phase AC220/110V to DC24V)You can see the on/off position of the main contacts directly, connected with the main shaft from the ground level.

Controller 
Panel / Control Part(Battery DC24V) / Power Supply / Cable 

Technical Parameters

Nominally Voltage 22.9kV
Rated Voltage  25.8kV
Rated Current  200A
Rated Frequency 50/60Hz
Rated Short-time Current Instantaneous value(Asym)     15kA
1sec(Sym) 10kA
10sec(Sym) 3.5kA
Rated Breaking Current  900A/1times
Rated Making Current 15kA(PI)(Asym)
Minimum Operating  Current 10,20,30,50,70,100,140,200A, BLOCK
Phase 5,10,15,25,35,50,70,100A, BY-PASS
Rated Power Frequency Withstand Voltage  50/60kV / 1min
Impulse Withstand Voltage 125/145kV / (1.2×50μs)
Max. Over-loading Current 800A
Non-Voltage Switching 1000Times
Restraint Time for Inrush Current 0.5/1.0 sec
Rated Control Voltage 1Ø220V/24VDC
Operating Method Automatic Type(Local Control)
Weight 65 kg
Applied Standards KEMC 1126
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