FLN36-12D series high voltage AC indoor load switch is applied in the three-phase, AC50Hz, rated voltage up to12KV, rated current 630A electric-supplying network. Mainly applied in three-phase RMU net pr ending electric-supply city distribution station and industrial electrical equipments, with load-control and short-circuit protection.
The load switch integrates breaking, closing earthing as a multifunction switching device, in a whole sealed, epoxide-resin reinforced structure housing with filling 0.05MPa SF6 gas inside.
It's the main switching component for RMU switchgear. Reliable, free-maintain.
Can run safely over 20 years in normal.
Altitude: below 3000m
Air temperature maximum is +40ºC, minimum is -30ºC.
Relative temperature: diary average ≤95%, monthly average ≤90%
No frequent shrink shock.
1.SF6 gas for arc blow-out, no explosive danger, no need to inspect
2. Load switch adopts double fractures, rotatablel moving contacts structure. 3 running situations: breaking, closing, grounding.
3. Component parts all adopt stainless steel material, bottom bracket adopts stainless steel material or carbon steel material of hot-galvanized with UV protection coating To ensure device normally run in outdoor environment.
4. Strong breaking capacity, safety, reliable, long electrical life, frequent operation.
5. Small volume, light weight, free-maintain, safe & convenient for operation
Packing and shipping
|Rated peak withstand current||50kA|
|Rated short-time withstand current(4s)||20kA|
|Rated closing current||50kA|
|Rated active-power load breaking current||630A|
|Rated closed-loop breaking current||630A|
|Rated cable charging breaking current||10A|
|Power frequency withstand voltage(1min)||to earth: 42kV; fracture:48kV|
|Lightning impluse withstand voltage||between phases, to earth:75kV; fracture: 85kV|
|SF6 gas relative pressure(20ºC)||≤0.04MPa|
|Rated operaion voltage(electrc)||AC/DC 220V|
|Shunt release rated voltage||AC/DC 220V|
|Average breaking speed ||3.5±1.5m/s|
|Average making speed ||3.5±1.5m/s|
|Three phases CO synchronization||≤3ms|
|Main circle resistance||≤120μΩ|
|Manual operation Max moment||≤160N.m|
|core clearance between phases||210±0.5mm|
-- Wooden box for products.
-- Shipping mark according to customer's request.
-- Bulk production will be deliveried by sea and air.Our Service
-- We have our own factory, professional manufacturer
-- We can send you samples within one week.
-- We do OEM & ODM services .
-- We control quality strictly, quality problem: 100% compensation or change
Warmly welcome to visit our factory. Welcome customer or your agent to inspect before order or lading.