LW8(A)40.5
This breaker provides reliable control & protection for power plants, substations, industrial & mining power systems. It can be used as a tie circuit breaker and for switching capacitor banks, with built-in current transformer for measurement & protection. It features excellent breaking performance, low gas leakage rate (≤1%/year), short arcing time, long mechanical life, compact structure, easy installation & maintenance, and can replace old oil circuit breakers for power grid upgrading.
Product Details
LW8(A) 40.5
Outdoor high voltage AC SF6 circuit breaker
□Description and Meaning of Model
□Introduction
□The LW8A-40.5(W)/T2000-31.5 outdoor type SF6 breaker finds its universal range of applications for the three-phases electrical system with alternating current 50Hz and the rated voltage 40.5kV.It is used for controlling and protecting the electrical system and measuring the current transformers.
□Characteristic of structure
□The LW8-40.5 breaker has the structure which is outdoor porcelain post type.It can be matched with CT35 spring mechanism and has T shape The circuit breaker is small and light and has good qualities with low operation power,lower noise,high reliability,simple structure.It is also convenient for the operator to install and debug the breaker.The mechanical life is not less than 10000 times and the breaker can be operated frequently.
□The breaker uses pneumatic arc-extinguishing chamber,so the breaking performance is excellent and the electrical life can reach up to 20 times.
□ The sealability is reliable.Static seal uses Oshape grommet structure,while dynamic seal uses structure of V shape grommet with spring pressure. The secondary terminal block is produced by imported mould according to the pressure injection technics So it has high performance of ageing resistance and makes sure that the annual leakage rate ofSF6≤0.5%.
□The metal frame and the support of the circuit breaker are bended with a whole deep steel plate.It uses high strength standard accessories and the mechanism is reliable.
□The measure iron cove of the inner or outer current transformer is made of materials with the performance of crystallite(alloy)high conduction Magnetic.So the accuracy class can reach up to 0.2 or 0.2S.Every phase of the product can match with 2-4 pieces of current transformers.
□Technical data
□Order notice
□The type and the specification of the circuit breaker.
□Rated electric parameter(vollage,current,rated short-circuit breaking current and so on).
□Environmental condition(temperature,altitude,filth level and so on).
□The name and the number of the accessories when required.
□The connection direction of the primary upper terminal.
□Outline dimension
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