FLN36-40.5 Indoor AC SF6 Load Break Switch

FLN36-40.5 Indoor AC SF6 Load Break Switch

FL(R)N36 Indoor AC High Voltage SF6 Load Break Switch and LBS-Fuse Combination are used for the three-phase AC 50/60Hz RMU and terminal power station.The switches are suitable for protecting the 10kV,24kV and 35kV power system’s on load situation.The switch can switch off the on load current, closed loop current,no load transformer capacity and cable charging current.The switch with fuse combination can cut off any current,when the current is in the range of the rated short-circuit breaking current.They are suitable for the RMU,combined transformer,etc.
FL(R)N36 of an indoor high-voltage SF6 load switch and FL(R)N36 load switch plus fuse combination are complied with the standards of GB3804-1990, IEC60256-1,1997,GB16926,IEC60420 etc.

Product Description  
FL(R)N36 Indoor AC High Voltage SF6 Load Break Switch and LBS-Fuse Combination are used for the three-phase AC 50/60Hz RMU and terminal power station.The switches are suitable for protecting the 10kV,24kV and 35kV power system’s on load situation.The switch can switch off the on load current, closed loop current,no load transformer capacity and cable charging current.The switch with fuse combination can cut off any current,when the current is in the range of the rated short-circuit breaking current.They are suitable for the RMU,combined transformer,etc.
FL(R)N36 of an indoor high-voltage SF6 load switch and FL(R)N36 load switch plus fuse combination are complied with the standards of GB3804-1990, IEC60256-1,1997,GB16926,IEC60420 etc.
Use environment 
a)Air temperature:Maximum temperature:+40C;Minimum temperature:-35C
b)Humidity:Monthly average humidity 95%;Daily average humidity 90%
c)Altitude above sea level:Maximum installation altitude:5000m
d)Ambient air not apparently polluted by corrosive and flammable gas,vapor etc.
e)No frequent violent shake
Technical Information

Rated voltage kV 12 24 40.5
Rated current A 630 630 630
Rated power frequency Hz 50/60 50/60 50/60
Short circuit making capacity kA Peak. 62.5 50 50
Peak withstand current kA Peak. 62.5 50 50
Short time current kA eff.      
1Sec.   25    
2Sec.     20 20
Max. breaking capacity in co-operation with fuses IEC 62271-105 (IEC 420 1990-11) A 1530 920 630
Mainly active load breaking capacity A 630 630 630
Cable charging current A 630 630 630
Power frequency withstand voltage 50Hz 1 min,:        
– To earth and between poles kV 42 55 95
– Across isolating distance kV 45 70 120
Impulse withstand voltage 1.2/50μ s:        
– To earth and between poles kV 75 125 190
– Across isolating distance kV 85 145 220
Mechanism Endurance cycles 1000 1000 1000

Additional Information

Primary loop of FL(R)N36 indoor load break switch and its combination is sealed in a epikote casted insulate unit by APG technology,this insulate unit has features of good insulating property,dust and dust proof,insulate unit contains upper and lower insulate covers,inside charged 0.4bars pressure SF6 gas,the partial siding of lower cover is very thin,it’s a protective measure and will burst out in the malfunction,the over pressed gas is released to protect the equipment.
SF6 load break switch and its fuse combination has open,close and earth three working position.

Professional Load Break Switch supplier and manufacturer 

  1. Zhejiang GONGSHUN Electrical Co.,Ltd (electricgs.com), Our company was founded in the late 1990s, specializing in the production of inflatable cabinets, SF6 inflatable cabinets, and various high and low voltage complete sets of electrical equipment. It has multiple subsidiaries under its jurisdiction, including high-voltage load switch branch, high-voltage circuit breaker branch, high-voltage fuse branch, and technology development branch.Our technical expertise, comprehensive product portfolio and long-term rich experience are helping many customers in need to solve their power problems. We’re happy to help at any time.  Whether you need application product advice or technical assistance, our global service team is committed to providing you with the right support. For more technical information about medium voltage earthing switch, feel free to contact us, send an email to gongshun@electric-cn.com 
  2. Our company specializes in producing 12KV-40.5KV series high-voltage electrical products: FZN58, FLN48, FLN36, FZRN25, FZN21, FN18, ZFN16, FN12, FN8, FN7, FN5, XRNT, XRNP, VS1, ZN28, ZW8, ZW32, JN15, GN19, GN22, GN24, GN30, CLXGN15-12, HXGN □ -12, DXG-12 (L), DFW □ -12 high-voltage cable branch box, CLXGN □ -12 (SF6) series inflatable cabinet 12KV and 35KV cable accessories, etc; CLVXP-12 indoor AC high voltage fixed switchgear, CL-SIS-12 compact solid insulated ring main unit, professional assembly Schneider SC6 (SF6) series load switchgear, ABB produced SFG (SF6) series load switchgear and other series products; Distribution and agency of high-voltage load switches and inflatable cabinets produced by Schneider Electric and ABB; Siemens produces the 3AJ1 series of indoor medium voltage vacuum circuit breakers and other related products. The company has a complete range of products and has been operating safely on domestic and international power grids for a long time, receiving unanimous praise from both new and old users. Among them, multiple products such as FZRN25, FN12, FLN36-12, XRNT-12 have been exported to various countries and regions in East Asia, South Asia, Southeast Asia, Africa, and the United States.