Product Description
Description
1HSB435455-2 enrev1 1
1. Description
High voltage circuit-breaker type LTB 245E1with a single operating mechanism
type BLG 1002A.
1.1 Design of the circuit-breaker
The circuit-breaker is made up of three separate poles. These consist of three main
parts. At the bottom is an operating mechanism in an alloy housing, above this are
hollow post insulator through which the operating insulator runs and at the top is the
breaking unit. The poles are interconnected by pull-rods enclosed in a protective
tube.
Each breaking unit consists of a breaking chamber insulator, which together with an
upper and lower flange makes up the enclosure, and upper and lower current paths
and a contact system. The puffer runs on the outside of the lower current path. The
fixed contacts are integrated in the upper current path and the lower section of the
puffer.
The poles are mounted on separate hot-dipped galvanised column frames. The
frame consists of two welded formed plate halves, which are interconnected with
bolted cross stays.
Figure 1-1. Circuit-breaker type LTB 245E1, 3-pole
Weights of component parts:
Item Part Weight, kg
1 Circuit-breaker pole See dimension drawing
2 Operating mechanism 465
3 Frame 86-200
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2
3
B1
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