Product Description and Application
1. This isolating switch comprises three single poles and actuator.
each single pole is made of a base, post insulator, operating
insulator and conductive part. The conductive part includes the
gear box and foldable conductive arm fied on the top of the post
insulator,and the static
contact hanging on the overload bus;
2. The actuator drives the operating insulator, and through the four
link lever-driven scissor-type conductive arm, lift and lower the
insulator to tighten or separate the movable contact and static
contact on the directly overhead bus line, to open or close the
isolating switch. After the closing, a vertical insulating break
will be formed.
1. Superior conductance system;
2. The conductive arm and gear box made of the Al-alloy of high
conductivity are of light weight, high strength and good
anti-corruption performance. The gear box is simultaneously used as
the conductor, massively improving the radiating effect of the
conduction system. Effective measures are adopted to optimize the
uniformity of power distributed on two conductive arms, thus
enhancing the conductive utilization of conduction materials and
promoting the price/performance ratio of the product. The
conductive arm and joint members are fied with welding, which is
more fied, reliable and more conductive than taper pin-based
connection. With this, the obstacles to operation such as water
penetration and accumulation and even ice coating in the conduction
tube can be avoided;
3. Contact forceps can cover a large area of rated contact. This
product is in the double arm telescopic (scissor-type) structure.
The forceps of the movable contact cover a large area of rated
contact, particularly applicable to soft bus line, and also to hard
4. Closed gear box. The gear box of this product is covered and
enclosed, with the conductive band, balancing spring and other
driving elements laid out within the gear box to avoid the
corrosion from rain, snow, dust, rust, and bird’s nests so that the
product can operate reliably and maintenance cycle can be extended.
The balancing spring is reasonably set and can adjust pulling force
to optimize the balancing characteristics of the conductive knife
switch, to ensure the operation friendliness and the isolating
switch’s stability in the processes of opening and closing switch.
The indication mark for the position of switch opening is set below
the gear box.