35kV 40.5kV Gas Insulated Switchgear Expandable Compact Switch Cabinet

35kV 40.5kV Gas Insulated Switchgear Expandable Compact Switch Cabinet

• Specification
• Technical Parameters

• 35kV 40.5kV Gas Insulated Switchgear Expandable Compact Switch Cabinet

  LYF-40.5 Series gas insulated switchgear provide 10 standard combinations to meet the requirements of most 36 ~ 40.5kV distribution networks. LYF-40.5 is compact switchgear that provides almost any combination of selected functional units.
  LYF-40.5 Series has interfaces and user interfaces, it provides a complete switching solutions for 36~40.5kV secondary distribution network.
  The stainless stel gas chamber of LYF- 40.5 Series is fled with SF6 gas, all live parts and switches are completely sealed and isolated from the outside. This fully sealed system keeps internal switches and all live parts free from external environmental changes, which ensures high relibility, personnel safety and maintenance- -free operation.

  LYF-40.5 is suitable for the customized use of switchgear in the following locations

  1. Compact type secondary substation
  2. Small industrial and mining enterprises
  3. Wind power plants
  4. Hotels, shopping centers, ffice buildings, commercial centers and so on

  Working environment conditions
  1. Ambient air temperature: upper limit +40 °C lower limit -40 °C;
  2. Air relative humidity: the daily average is not more than 95%, and the monthly average is not more than 90%;
  3. Altitude ≤ 1500 meters (under standard inflation pressure);
  4. The seismic intensity does not exceed 8;
  5. Places without fire, explosion, serious pollution, chemical corrosion and severe vibration.

  Special conditions
  Manufacturer and end user must agree on special operating conditions that differ from normal operating conditions.
  If particularly harsh operating environments are involved, the manufacturer and supplier must be consulted.
  When the electrical equipment is installed above 1500 meters above sea level, it should be specified so that the pressure can be adjusted during manufacture. When this pressure is adjusted, the life of the switchgear itself has no significant effect.

• 35kV 40.5kV Gas Insulated Switchgear Expandable Compact Switch Cabinet

  Technical Parameters

  Item	Unit	Unit C		Unit F		Unit V
  		load switch	earthing switch	load switch -fuse combination	bottom earthing switch	vacuum circuit breaker	earthing switch /disconnect switches
  Rated voltage	kV	36/40.5	36/40.5	36/40.5	36/40.5	36/40.5	36/40.5
  Power frequency withstand voltage	kV	70/95	70/95	70/95	70/95	70/95	70/95
  Isolation fracture	kV	80/110		80/110			80/110
  Lightning impulse withstand voltage	kV	170/185	170/185	170/185	170/185	170/185	170/185
  Isolation fracture	kV	195/215		195/215			195/215
  Rated current	A	630/630*		200/200		630/630
  Breaking capacity
  Active load	A	630/630		200/200
  Closed loop current breaking	A	630/630		200/200
  No-load cable charging	A	20/21		20/21		50(C1)
  Ground Fault	A	60/63		60/63
  Ground fault cable charging	A	35/36		35/36
  Divert current	A			840/750
  Short circuit breaking current	kA			20(prospective)		20(E1,S1)
  Closing ability	kA	50/50(5 times)	50/50(5 times)	50(prospective)	2.5(5 times)	50/50	50/50
  Rating (electrical life)		E3/E2	E2/E2	-/-	E2/E2	E2/E2	E2/E2
  3s short-time withstand current	kA	20/20	20/20	Limited by high voltage fuse		20/20	20/20
  Internal arc classification	kA	20/20		20/20		20/20

  *Depends on the rated current value of fuse

  Standard combination

  

  C-Load switch unit
  D-Direct cable connection unit
  De-Direct cable connection unit with earthing switch
  F-Load switch-fuse combination
  V-Vacuum circuit breaker unit

  Ordering Instructions

  The user must provide the following technical information when ordering:
  1. Main circuit diagram, arrangement diagram and floor plan;
  2. Schematic diagram of the secondary circuit of the switch cabinet;
  3. Models, specifications and quantities of all electrical components in the switchgear;
  4. If you need to set up a low-voltage box, it should be explained;
  5. When the switch cabinet is used in special environmental conditions, it should be explained.