| Brand | ROCKWILL |
| Model NO. | Indoor Type Air Insulated Sectionalizing Switch -25.8kV |
| Rated voltage | 25.8kV |
| Rated normal current | 200A |
| Series | ZW32 |
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 | |