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Our disconnectors and earthing switches. 3DN1 Center break disconnectors. 3DN2 Double side break disconnectors. 3DN3 Pantograph disconnectors. 3DN4 Vertical break disconnectors. The center break is the most frequently used disconnector type worldwide. Its design is characterized by two rotating insulators that open and close the contacts in a ...
disconnector without earth contact. The composite insula-tor on the fixed contact is replaced by a metal support tube which realizes the earthing point. The earthing switches are equipped with a rotation angle sensor with SIL1 to meet the raised safety requirements. The earthing switch Sicat 8WL6144-1A (class E0 according
APPLICATION. One - and three - phase disconnectors are designed for closing and opening not loaded electrical circuits in outdoor A.C. substations. In open position disconnectors form visible and safe isolating distance which cuts circuit from voltage on the outflow side.
The horizontal center break disconnectors type SDF consist of a steel base frame with two rotary pedestals, insulators, current carrying conductors (current path) ... Type Installation (with or without earthing switch) In series Pmin (mm) In parallel Pmin (mm) SDF72.5 1790/(705) 1270/(500) SDF123 2700/(1063) 1970/(776)
Construction of earthing switches enables building-on the earthing switches without making any changes even when the disconnector is already installed at site Earthing switches can be located from the fixed non-disconnectable contact side (lower earthing switches) or from disconnectable fixed contact side (upper earthing switches) Disconnector ...
Both disconnector and earthing switch can be motor or manually operated. Centre-break disconnectors of the type described in this handbook are identified as follows: (1) - (2) - (3) - (4) - (5) (1) = RC-WOE, for disconnector without earthing switches (2) = RC-WSE, for disconnector with single earthing switches (3) = RC-WDE, for disconnector ...
The major types of disconnectors are: Centre-break disconnectors. Double-break disconnectors. Pantograph disconnectors. Horizontal break knee disconnectors. Vertical break disconnectors. Coaxial disconnectors. These are selected based upon the sub-station layout, clearances available and space constraints. Switch disconnector.
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