Indoor 24kV 230mm SF6 insulated Fuse Load Break Switch for Ring Main Unit

Indoor 24kV 230mm SF6 insulated Fuse Load Break Switch for Ring Main Unit

 

• Specification
• Structure

• Indoor 24kV 230mm SF6 insulated Fuse Load Break Switch for Ring Main Unit

  The sf6 load break switch is a kind of switchgear with a simple arc extinguishing device. It uses SF6 gas as the insulation and arc extinguishing medium. It can be used as the closing and breaking load current and overload current. It can also be used as the closing and breaking no-load. Lines, no-load transformers and capacitor banks, etc., all three-position load switches with on, off and grounding functions are simple in structure and affordable. In addition to long life, strong breaking force and other advantages of vacuum load switch, its outstanding advantages are easy to achieve three working positions (on, off and ground), small current (inductance, capacitance) breaking, anti- Strong environmental conditions. It is suitable for promotion and application in urban and rural medium voltage distribution networks.

  Newly developed load break switch, applied on SF6 RMU, with features of high efficiency, safety, reliability, simple structure, flexible operation, interlock reliable, easy to install and so on.

  It satisfies with standard IEC94, GB3804, GB16926 and so on.

   

  Normal ambient condition

  1. Altitude: ≤2000M
  2. Ambient temperature:from-40℃ to +40℃
  3. Relative humidity: daily average ≤95%, monthly average ≤90%.
  4. Earthquake intensity: ≤8 degree
  5. Ambient air should not significantly contaminated corrosive, flammable gas, vapor, etc., should be no recurrent severe vibration.
  6. Annual leakage rate: ≤0.1%.

   

  Technical parameters 

  Indoor 24kV 230mm SF6 insulated Fuse Load Break Switch for Ring Main Unit

  No.	Item	Unit	Data
  1	Rated voltage	KV	24
  2	Rated frequency	Hz	50
  3	Rated current	A	630
  4	1 min power frequency withstand voltage	KV	65
  5	Lighting impulse withstand voltage	KV	125
  6	Rated short circuit breaking current(peak)	KA	20
  7	Rated activeload and circuit breaking current	A	630
  8	Rated transferring current	A	630
  9	Rated short circuit making current(peak)	KA	50
  10	Rated cable(line)charging breaking current	A	10
  11	Phase distance	mm	230
  12	Rated withstand current(peak)	KA	50
  13	Short time withstand current(2s)	KA	20
  14	Mechanical life	Time	5000

• Indoor 24kV 230mm SF6 insulated Fuse Load Break Switch for Ring Main Unit

  SF6 load break switch applications

  

   

 

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