GW13-40.5I-72.5I-126I-GW13˘ńSeries Perfection Improved Neutral Point Disconnect Switch
GW13˘ńseries perfection improved neutral point disconnect switch is three-phase AC 50Hz outdoor HV equipment used as connection wire for neutral point of opening and closing transformer under no-load condition.
There are different specifications for GW13˘ńseries.
1.Divided into following type according to operation mechanism
1). CS17˘ô perfection improved munual mechanism;
2). Equiped with CJ6G perfection improved electric mechanism;
2. According to environment pollution grade, it is divided into grade ˘ň, ˘ó,˘ô.
GW13˘ńseries perfection improved neutral point disconnect switch is single-pole V type and double-column rotary type structure consists of base,surpport insulator, galvanic circuit,operation mechanism etc. Each pole has two insulation surpports at 50° angle which are separately placed on bearing seat connected to the base,using bevel gears to realize meshing transmission. Conducting switch blade is split into two halves and fastened on surpport insulators with contact finger in the between two surpporting seats. When operation mechanism runs througn a set of planar four-bar linkage to drive one column of surpport insulator to rotate 90°, and another surpport insulator simultaneously rotate 90° due to bevel gear mesh, as a result switch blade will opening and closing towards the same side.
Neutral point disconnect switch can be equiped withCJ6G perfection improved electric mechanism as well as CS17˘ô perfection improved manual mechanism. The manual mechanism also can be equiped with new type DSW4 electromagnetic lock.
A.Adopts new self- elastic contact finger base structure to avoide defects that original structure make against stable flow, and make contact spring to be insulated to avoid that spring lose effectiveness because of long time overheat.
B.Adopts fixed flexible connection flow between connector base and connecting terminal. Both ends of connecting terminal will take insulation sleeve to ensure reliable flow and flexible rotation.
C.Adopts fully sealed structure for bearing seat,and fully covering enough molybdenum disulfide lithium grease on bearing surface to make sure long-term reliable rotation.
D.Takes 180° operation mechanism,driving arm all at dead center position at opening and closing position which can effectively ensure reliability of earth switch at opening and closing positions.
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