| Customization: | Available |
|---|---|
| Type: | Load-Break Switches |
| Structure: | Three-column Disconnector |
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BRFLN36-36an indoor high-voltage SF6 load switch, an switchgear with the rated voltage of 36kV/40.5kV, adopted with SF6 gas as an arc-extinguishing and insulation medium, including the three contactors for switching-on and switching-off and to-ground, and is characteristic in its small volume, its convenient installation and operation and its the great adaptability with surroundings.
BRFLN36-36 of an indoor high-voltage SF6 load switch and BRFLN36-36D of SF6 load switch plus fuse combination can function to protect and control the electric equipments for power supply and transformer substations especially being suitable for ring net cabinet, cable branch cabinet and distribution switching substation.
BRFLN36-36 of an indoor high-voltage SF6 load switch and BRFLN36-36D load switch plus fuse combination are complied with the standards of IEC60265-1-1998, IEC60420 etc.
a) Air temperature
Maximum temperature: +40°C; Minimum temperature:-5°C
b) Humidity
Monthly average humidity 95%; Daily average humidity 90% .
c) Altitude above sea level
Maximum installation altitude: 2500m
d) Ambient air not apparently polluted by corrosive and flammable gas, vapor etc.
e) No frequent violent shake
|
No |
Item |
Unit |
Parameter |
|
|
1 |
Rated voltage |
kV |
36 |
|
|
2 |
Rated frequency |
Hz |
50/60 |
|
|
3 |
Rated current |
A |
630 |
|
|
4 |
1min Power frequency withstand voltage |
wet |
kV |
95 |
|
dry |
kV |
110 |
||
|
5 |
Lightning impulse withstand voltage |
kV |
185/215 |
|
|
6 |
Rated short circuit breaking current (peak) |
kA |
50 |
|
|
7 |
Rated active load and close circuit breaking current |
A |
50 |
|
|
8 |
Rated transferring current |
A |
1000 |
|
|
9 |
Rated short circuit making current (peak) |
kA |
50 |
|
|
10 |
Rated cable(line) charging breaking current |
A |
50 and 10 |
|
|
11 |
Cable charge breaking current in earthing fault |
A |
20 |
|
|
12 |
Rated withstand current (peak) |
kA |
50 |
|
|
13 |
Short time withstand current (2s) |
kA |
20 |
|
|
14 |
Mechanism life |
times |
2000 |
|
Note: For short circuit breaking and peak current is based on Fuse plus combination.
BRFLN36-36 load break switch adopts SF6 gas as the medium of arc extinction, when switch on and off, arc occurs and will spin under the magnetic field effect ion by the permanent magnet, cooled by the SF6 gas and extricated finally.This indoor SF6 load break switch and its fuse combination works with spring type operating mechanisms A and K, BRFLN36-36 load break switch equipped with the K spring operating mechanism is applied as the incoming control unit, while that equipped with A mechanism is applied as the outgoing protective unit and transformer unit.
1) "K" Type Spring Operating Mechanism
Working principle of K type spring operating mechanism is spring press and release( see fig 1. it's in off position)
A) Earthing operation
Driven by the handle, upper crank arm 4 rotates and presses spring 2 to store energy, when the max energy reached continue rotate the crank arm, the energy storage spring starts to release energy and drive the upper trigger, enables the connecting bar to drive the crank arm, crank arm rotates and drives the moving contactor for earthing.
B) Switch on operation
Driven by the handle, lower crank arm 1 rotates, presses spring 2 to store energy, when the energy released, it drives the trigger 8,enables connecting bar to drive the crank arm, crank arm rotates and drives the moving contactor and load break switch turns on.
C) Switch off operation
Rotate the main shaft crank arm counterclockwise by the handle, release the energy storage spring and the load break switch turns off.
2) "A" Type Spring Mechanism
Working principle of A type mechanism is same as K type, in addition, it has fuse striker unbuckle function. For A type mechanism, electromagnetic unbuckle is also available on customers requirement.(see fig 2)
A) Switch on operation
Driven by the handle, lower crank arm 1 rotates to presse switch on spring 12 and switch off spring 8 at the same time, to provide sufficient energy required by switching off. when the lower crank arm 1 buckles the pin and drives trigger to move, it makes the lower roller wheel unbuckled, and release the switch on spring and load break switch turns on.
B) Switch off operation
Press the switch off button or push the unbuckle pin 2 by the fuse striker, release the spring and load switch turns off.
C) Earthing operation
Earthing operation of A type mechanism is same as that of K type.
Our Services
FAQ
Q 1. Are you a factory or trading company?
A.We are a factory.
Q 2. Where is your factory located? How can I visit there?
A. Our factory is located in Wenzhou City, Zhejiang Province, China. You can fly to Longwan airport directly. All our clients,from home or abroad, are warmly welcome to visit us!
Q 3. What's the payment term?
A. We accept TT, 30% deposit and 70% before shipment, Western Union, L/C At Sight is ok! We'll show you the photos of the products and packages before you pay the balance.
Q 4. Tell me the standard of package? What is your terms of packing?
A: Generally, we pack our goods in neutral white boxes and brown cartons. If you have legally registered patent, we can pack the goods in your branded boxes after getting your authorization letters.
Q 5. Would you accept to use our logo ?
A. If you have good quantity,it absolute no problem to do OEM.
Q 6. How about the transport?
A. If the number of goods is small we usually use TNT,DHL,FEDEX,EMS and some express you offered. If the number of the goods is big usually we use the FWD you offered or we provided. Either by sea or by air is OK.
Q 7. What is your Production lead time / delivery time?
A: Generally, it will take 25 to 30 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.
Silicone rubber's regular product is 1,000/ week , Porcelain's need 2-3 weeks about 1000 pcs.
Q8. How do you make our business long-term and good relationship?
A:1. We keep good quality and competitive price to ensure our customers benefit ;
A: 2. We respect every customer as our friend and we sincerely do business and make friends with them, no matter where they come from.
A: 3.Most goods we have the type report according the IEC STANDARD
Q9. What is your sample policy?
A: We can supply the sample if we have ready parts in stock, but the customers have to pay the courier cost.
Q10. Can you produce according to the samples?
A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.
Q11. What is your terms of delivery?
A: EXW, FOB, CFR, CIF.
Q12.What certificates do you have?
A:ISO9001,OHSAS18001,ISO14001 certificate and Type test report of product.
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