10kV Dry Type Air Core Reactors Current Limiting Reactor In Power System

10kV Dry-Type Air Core Reactorr,Current Limiting Reactors

1. Overview of 10kV Dry-Type Air Core Reactorr,Current Limiting Reactors

Compared with traditional oil immersion iron core reactor,dry-type air core reactors have advantages of light weight,good linearity,stable reactance,small loss ,low noise ,etc.The epoxy is adopted for envelopment,with high mechanical strength and super-high short-time current resistance ability .It is simple in structure and compact without oil.The star bracket and lead wire are welded by adopting the argon arc welding to greatly improve reliabiility of operation;Coverd with ultraviolet resistant paint on surface,it can be used for indoor and outdoor longtime running.Whereas the above-mentioned reason,dry-type air core reactors gradually supersede traditional oil immersion iron core reactors.

2. Main features of 10kV Dry-Type Air Core Reactorr,Current Limiting Reactors

• The reactor is enclosed by epoxy resin impregnated long glass fiber.The reactor is composed of several enclosures of coils.
• The coil is insulated by polyester film ,which has good capability of insulation.
• The reactor is painted with resisit aging ,ultraviolet-proof insulation coatings,and has fine performance operating outdoors.
• Between enclosure of coils,supports made of polyester glass fiber are used for axial heat radiator, this construction has abetter property of heat radiation.
• When making calculation of temperature rise,we consider of the highest temperature of the hottest spot and keep a preferable margin.it can guarantee the long term safe operation of reactors.
• The whole reactors is integrated in high temperature heating room,the leading-out ends of each winding layer are welded to upper and lower spider arms ,all these make the reactors have many advantages,such as high strength,low noise,better ability against short-circuit.
• The reactor adopts small round section aluminum wires(Φ1.9~Φ4.5)as coil condutor ,thus effectively reduce vortex losses of coils under harmonic waves.
• The structure is simple and compact.The reactor can operate outdoors with convenient maintenance.

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3. Executive standard of 10kV Dry-Type Air Core Reactorr,Current Limiting Reactors

GB1094.6-2011,JB/T5346,JB/T10775

5. Conditions of use

(1) Altitude: no more than 1000 meters.
(2) Ambient temperature: -40～45℃.
(3) Relative humidity: not more than 90%.
(4) Wind speed: ≤ 35m/s.
(5) Earthquake intensity: not more than 8.
(6) Installation location: indoor or outdoor.