FLN36-12D/FL(R)N36-12D series indoor high-voltage sulfur hexafluoride load switch is a medium-voltage switchgear developed by our company with reference to international new technology and according to the relevant standards of China's power system, and its performance indicators meet the national standard GB/T3804-2017 "3.6kV-40.5kV high-voltage AC load switch", which is the main switching element of the ring main unit.
The load switch is a collection of brake, opening, grounding as one of the multi-functional medium voltage switchgear, in a fully sealed, with a reinforced structure of epoxy resin shell filled with 0.05MPa SF6 gas, with the least parts to achieve the above three functions, to ensure the quality of the product, improve the reliability. It is maintenance-free and can operate safely for more than 20 years under normal conditions.
F L R N - 36 12D / 630/125 - 20/31.5
1 2 3 4 5 6 7 8
| 6.Maximum Operating Voltage (With Grounding Switch) |
| 8.Rated short-time withstand current |
| Relative humidity: |
| Daily average < 95% |
| Monthly average < 90% |
| *Severe vibration and shock, as well as no fire, chemical corrosion, explosion hazard location |
| GB/T3804-2017 High-voltage AC Load Switch 3.6kV-40.5kV |
| Number |
Name |
Unit |
Data |
| 1 |
Rated voltage |
kV |
12 |
| 2 |
Rated frequency |
Hz |
50 |
| 3 |
Current rating |
A |
630 |
| 4 |
Rated peak withstand current |
kA |
50 |
| 5 |
4S rated short-time withstand current |
kA |
20 |
| 6 |
Rated closing current |
kA |
50 |
| 7 |
Rated breaking current |
Active load interrupting current |
A |
630 |
| Closed-loop interrupting current |
A |
630 |
| Cable charging interrupting current |
A |
10 |
| 8 |
Power frequency withstand voltage 1min interphase, to the ground/fracture |
kV |
42/48 |
| 9 |
Withstand lightning impulse voltage interphased, to ground/fracture |
kV |
75/85 |
| 10 |
Sf6 gas relative pressure (20°C gauge pressure) |
MPa |
≤0.04 |
| 11 |
Rated operating voltage (electric) |
V |
AC220,DC220 |
| 12 |
Rated voltage of shunt tripper |
V |
AC220,DC220 |
| 13 |
Average opening speed |
m/s |
3.5±1.5 |
| 14 |
Average closing speed |
m/s |
3.5±1.5 |
| 15 |
Three-phase opening and closing simultaneity |
ms |
≤3 |
| 16 |
Main loop resistance |
μΩ |
≤120 |
| 17 |
Manual operation is most in the moment |
N.m |
≤160 |
| 18 |
Center distance between phases |
mm |
210±0.5 |
Wenzhou Naisite Electric Co., Ltd is a technology oriented transmission and distribution equipment manufacturing enterprises, since its establishment in 2011, focus on transmission and distribution equipment technology progress, advocating technological innovation, introduce new energy prefabricated, a secondary fusion ring cage, environmental protection cabinet,Transformers, cable branch box, box type substation such as intelligent high and low voltage transmission and distribution equipment. Applicable to electric power, railway, petrochemical, subway, municipal construction, steel, coal and other industries. The company's products have achieved a number of technological breakthroughs in environmental protection, miniaturization, intelligence, maintenance free and other aspects. The headquarters of Wenzhou Naisi Electric Co., Ltd is located in the core area of Wenzhou Yueqing Economic Development Zone, "the capital of Electrical appliances in China". Has an excellent domestic intelligent distribution network products assembly line.
The company has a vacuum box helium leak detection system, local discharge test laboratory and other advanced inspection and test equipment system. With the basic experimental facilities and research environment needed for advanced technology development and scientific research, the products are tested according to the international IEC standards. The enterprise has passed the IS09001 quality system certification, IS014001 environmental system certification and OHSAS18001 occupational health and safety management system certification, the products have been obtained the CNAS national accreditation laboratory certification report.
| Q: Are you a trading company or manufacturer ? |
| A: We are a professional factory with 10 years experience in the field of High and Low voltage switchgears,Substation,transformers,cable distribution box and various electrical equipment, such as vacuum circuit breaker , load break switch etc.Our factory is the excellent supplier of State Grid Corporation of China . |
| Q: Do you accept customized serveice ? |
| A: We offer OEM/ODM service , can print your logo on product . our professional technical and quotation team can provice a satisfied project according to your drawing and parameters . |
| Q:How long is your delivery lead time ? |
| A: It depends on your product requirement and quantity . Generally , 5~10 working days is available . |
| Q: How do you solve quality problems? |
| A: Please porvide detailed photoes of quality problems. our technical and quality testing department will analyse.we will make a satisfied soluton within 2 days. |
| Q: What is your payment terms ? |
| A: 30%T/T in advance,70% before shipment . West union , L/C are also acceptable . |
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