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Fuse Combination Unit Load Break Switch with Grounding Knife-Yfn5-12r (T) D/125-31.5

Basic Info

Model No.:  YFN5-12R(T)D/125-31.5

Product Description

Model NO.: YFN5-12R(T)D/125-31.5 Structure: Fuse Pole: 3 Number of Switch: Multi Control Switch Installation: Indoor High Voltage Origin: Jiangyin Yunfeng, China Function: Industry Usage: Control Switch Rated Continuous Current: Max.Rated Current of Fuse Equipped:125A Certification: SGS, ISO9001, CE Trademark: YF Product Overview
YFN5(FN5)-12 series indoor AC HV load gas-production load switch and fuse combination unit is mainly applied in AC 12kV network for breaking the rated load current and making the short-circuit current. The performance shall meet the requirements of the national standards GB 3804-2004 High-voltage alternating-current switches for rated voltage above 3.6kV and less than 40.5kV and GB 16926-2009 High-voltage alternating current switch-fuse combinations. The fuse combination unit can break the short-circuit current and has the function of single-phase fuse three-phase tripping and breaking. It is the ideal selection for protecting the line, equipment and Transformer.The series load switch has features of small size, light weight, simple and reasonable structure,small operating force, reliable performance and convenient maintenance,ect. It can be mounted on the wall or intalled in the HV switchgear and it is a type of HV load switch with advantageous cost performance.

Model Specification
Indoor AC HV load switch-fuse combination unit
Fuse Combination Unit Load Break Switch with Grounding Knife-Yfn5-12r (T) D/125-31.5
Note: The sensor with live display can be used for the switch insulator.

Characteristics:
          ---small size
          ---light weight
          ---simple & reasonable structure
          ---small operating force
          ---reliable performance & convenient maintenance

Service Conditions
          1.Altitude≤1000m;
          2.Ambient temperature-25ºC-+ 40ºC;
          3.The daily average of relative humidity shall not be larger than 95% and the monthly average shall not be               larger than 90%:
          4.The ambient air shall not be subject to the obvious pollution such as corrosive or combustible gas and                   steam;
          5.The site without fire hazards and explosion hazards;
          6.The site that the seismic intensity does not exceed degree 8; the gradient shall not exceed 5°

Main Technical Parameters
 
Serial No.  Item Unit YFN5-12R(T)Load Switch-Fuse Combination Unit
1 Rated Voltage  kV 12
2 Rated frequency HZ 50
3 Rated current A Max.rated current of fuse equipped:125A
4 Rated short-circuit breaking current of fuse kA 31.5
5 Rated breaking transfer(handover)current A 1000
6 Main loop resistance μΩ ≤120
7 Rated active load breaking current A 630
8 5% rated active load breaking current A 31.5
9 Rated closed loop breaking current A 630
10 Rated cable charging breaking current A 10
11 Rated short-time withstand current(thermal stability current)/duration kA/s 20/2
12 Rated short-time withstand current(thermal stability current)/duration of earthing switch  kA/s 16/2
13 Rated peak withstand current(dynamic current) kA 50
14 1 min power-frequency withstand voltage(effective value)to earth,phase-to-phase/isolating fracture kV/kV 42/48
15 Full-wave lightning impluse withstand voltage(peak) to earth,phase-to-phase/isolating fracture kV/kV 75/85
16 Mechanical life Time 2000
17 Rated opening operation voltage V ≌220/110
18 Time of switch opening triggered by breaking of fuse ms 35±5
19 Impact output enery at breaking of fuse J(Joule) 1
Fuse Combination Unit Load Break Switch with Grounding Knife-Yfn5-12r (T) D/125-31.5Fuse Combination Unit Load Break Switch with Grounding Knife-Yfn5-12r (T) D/125-31.5Fuse Combination Unit Load Break Switch with Grounding Knife-Yfn5-12r (T) D/125-31.5



 



 







 

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