outdoor HV disconnector is a three phase AC switching device

General:

This product is double-column horizontal fracture middle open type, can be attached to one or both sides of the ground switch. The isolation switch of 90° transmission adopts CS17 type manual operation mechanism for three-stage linkage operation; The isolation switch of 180 transmission adopts CJ6 motor operating mechanism for three-stage linkage operation; The ground switch adopts CS17G manual operating mechanism three-level linkage operation.

Service Environment

• Altitude: not more than 1000m, if the altitude is higher than 1000m, the rated insulation level should be corrected accordingly;

• Ambient temperature: upper limit +45℃, lower limit -40℃, the average temperature of the hottest month 30℃, the maximum daily temperature difference 25K;

• Solar radiation intensity (outdoor) : 0.1W/cm2;

• Wind speed/wind pressure (outdoor) : 34m/s (700Pa);

• Pollution grade: e;

• Ice thickness: ≤20mm;

• Humidity: average daily relative humidity ≤95%, average monthly relative humidity ≤90%;

• Earthquake resistance: horizontal acceleration 0.3m /s2, vertical acceleration 0.15m /s2;

• Safety factor: sinusoidal resonance three cycles, safety factor above 1.67.

Key Feature

• Isolating switch with double column, contact into open type structure, has the ability of self cleaning contact, improve the contact reliability;

• Finger made of new material with high strength, high conductivity, high elastic. Relying on the elastic contact finger clamping itself, to avoid the spring corrosion, contact clamping fever caused by annealing

• Force to reduce the contact resistance increases, the contact heat intensified the vicious spiral.

• The rotating part according to the design requirements of the isolating switch maintenance free. The rotating seat designed seal structure,moisture, dust and harmful gas can not enter, bearing, molybdenum disulfide lithium base grease will never work in

• A good environment, bearing, never rust, grease can not be lost, never dry up, the isolation switch operating torque will increase after long term operation. Stainless steel shaft and oil-free self-lubricating bearing

• With the structure of steel by hot dip galvanizing, ensure the isolation switch operation is flexible, portable and reliable, never rust.

Technical Data

• Name		Unit	Data
  Rated voltage		kV	40.5
  Rated frequency		Hz	50
  Rated current		A	630	1250	2000	2500	3150	4000
  Rated short-time withstand current		kA	20/25	25/31.5	31.5		40/50
  Rated short-time withstand current（peak）		kA	50/63	63/80	80		100/125
  Rated short-time power frequency withstand voltage		kV/min	95/1（phase to phase、to earth，dry）
  			118/1（phase to phase、to earth，dry）
  			95/1（phase to phase、to earth，wet）
  Rated lightning impulse withstand voltage		kV	185（phase to phase、to earth）
  			215（open contact）
  Rated short-time withstand current duration		S	4（disconnecting switch）、2（earthing switch）
  Creep age distance		mm	≥1256（Class e anti-fouling）
  Main loop residence		μΩ	≤100			≤80
  Equipped with operating mechanism	Manual operation mechanism		CS17-G5(no earthing switch)
  			Main cutter CS17-5G, ground cutter CS17-G2(with single/double ground switch)
  	Motor operating mechanism		CJ6 type, motor voltage AC380V or DC220V, control voltage AC220V or DC220V, auxiliary contact 8 normally open 8 normally closed (standard)
  Mechanical life		Times	2000（disconnecting switch/earthing switch）

Drawing