Basic Info.
Model NO.
FW2
Origin
China
HS Code
3917310000
Production Capacity
10000
Product Description
++++General
FW1 type Outdoor on load break switch (switch disconnector) contained in this list are destined to switch stub lines and ring main lines or transformers( It can be equipped with MV HRC fuse links as short circuit protection function) or for switching under on load conditions.
FW1 type switch comply with IEC/IEEE and DVE-recommendation standards. Especially comply with DIN VDE 0670 part 3 and IEC publication IEC-60265, IEC-129.
FW1 type Outdoor on load break switch (switch disconnector) contained in this list are destined to switch stub lines and ring main lines or transformers( It can be equipped with MV HRC fuse links as short circuit protection function) or for switching under on load conditions.
FW1 type switch comply with IEC/IEEE and DVE-recommendation standards. Especially comply with DIN VDE 0670 part 3 and IEC publication IEC-60265, IEC-129.
++++Service environment
- Air temperature: Maximum temperature: +75ºC; Minimum temperature:-45ºC
- Humidity: Monthly average humidity 95%; Daily average humidity 90% .
- Altitude above sea level: Maximum installation altitude: 2500m
- Ambient air not apparently polluted by corrosive and flammable gas, vapor etc.
- No frequent violent shake
++++ Features and benefits
- Compact design
- All steel parts either in stainless steel or hot-dip galvanized
- Solid and stable base frame
- Main contact with icing protection
- Insulators available in porcelain or alternatively in silicone
- Minimal sag for the line-connection thanks to the two fixed terminals
- Completely maintenance antirust AL alloy -Arc chamber
- Switching-off procedure without external arc
- Short circuit making capacity under specific conditions possible
- Fixing on the supporting structure either by clamping (free setting) or screwing (holes in the base frame)
- Easy on-site installation and setting
- High reliability: up to 1'000 cycles (depending on the making current)
- All conducting parts either silver, nickel or tin-plated
- Practically maintenance-free
- ++++ Main technical specifications
-
Sheet 1
No. Item Unit Data 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 (1S) kA 20 5 Rated peak withstand current (1S) kA 50 6 Rated making current kA 31.5-50
7
Rated insulation level(HV)lightning impulse
kV75/85 125/145 170/195 Power frequency withstand 45 55/75 75/100
8Rated short circuit breaking capacity cos. Φ(0.7)
Without maintenance of contacts------------------------------
- for active circuits20 breakings
A630 630 400 30 breakings 400 400 300 40 breakings 300 300 250 50 breakings 250 250 170 75 breakings 170 170 160 120 breakings 110 110 110 200 breakings 65 65 65 280 breakings 50 50 50
Sheet 2
No. Item Unit Data 1 Rated voltage kV 12 24 36 9 For ring circuits breaking capacity A 630 400 250 10 Rated breaking capacity of transformer A 50 11 Rated breaking capacity of cable charging A 11 12 Rated breaking capacity of earthing fault A 56
Note:
The FW1 type on load break switch (Switch disconnector) is equipped with stored energy released by fuse strike pins. The stored energy mechanism for the opening operation is released by fuse strike pins. The trip actuator is mounted on top of the fuse contact clip.
The DIN type fuse is held in spring type contacts, secured by a tail lever. All the components are made of stainless steel, to prevent corrosion, have long live, and in the reset position. The trip lever is parked in an over-centre position.
