LBS-FW1-type Outdoor On-load Break Switch (Switch Disconnector)

Quick details:
Brand Name: HOSSIN
Model Number:LBS-FW1
Usage: Outdoor
Voltage level: 11-40.5 kV
Safety Standards: IEC
Place of production: China-Zhejiang
Export Markets: Global
Packing: wooden-box or as customized

Product overview

The FW1-type outdoor on-load break switch (switch disconnector) contained in this list is destined to switch stub lines and ring main lines or transformers (it can be equipped with MV HRC fuse links as a short circuit protection function) or for switching under on-load conditions. FW1-type switches comply with IEC/IEEE and DVE-recommendation standards. Especially comply with DIN VDE 0670 Part 3 and IEC publication IEC-60265, IEC-129.

Use environment

a) Air temperature: maximum temperature: +75°C; minimum temperature: -45°C.

b) Humidity: Monthly average humidity is 95%; daily average humidity is 90%.

c) Altitude above sea level: maximum installation altitude: 2500m.

d) Ambient air not apparently polluted by corrosive and flammable gas, vapors, etc.

e) No frequent violent shaking.

Features and benefits

1. Compact design
2. All steel parts are either stainless steel or hot-dip galvanized.
3. A solid and stable base frame.
4. Main contact with icing protection.
5. Insulators are available in porcelain or, alternatively, in silicone.
6. Minimal sag for the line connection thanks to the two fixed terminals.
7. Completely maintain the antirust AL alloy-arc chamber.
8.Switching-off procedure without external arc.
9. Short circuits make capacity under specific conditions possible.
10. Fixing the supporting structure either by clamping (free setting) or screwing (holes in the base frame): easy on-site installation and setting.
11. High reliability: up to 1’000 cycles (depending on the making current).
12. All conducting parts, either silver, nickel or tin-plated 13.Practically maintenance-free.

Main technical specifications

No Item Unit Date
1 Rated voltage kV 12 24 36
2 Rated frequency Hz 50/60
3 Rated current A 200/400/630
4 Rated short circuit withstand current kA 20
5 Rated peak withstand current kA 50
6 Rated making current kA 31.5-50
7 Rated insulation level (HV) lighting impulse kV 75/85 125/145 170/195
Power frequency withstand 45 55/75 75/100
8 for active circuits 20 breakings A 630 630 400
30 breakings 400 400 300
40 breakings 300 300 250
50 breakings 250 250 170
75 breakings 170 170 160
120 breakings 110
200 breakings 65
280 breakings 50
9 For ring circuits, breaking capacity 630 400 250
10 Rated breaking capacity of transformer 50
11 Rated breaking capacity of cable charging 11
12 Rated breaking capacity of earthing fault 56

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