Pomanique SF6 circuit breaker PW-12/24/36
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1、 Overview PW‐12/24/36,is suitable for the rated voltage 12/24/36 kV,rated current 630A 50/60Hz power grid open circuit,load current in closed Power system overload current. This load switch can separate those broken distribution line automatically. With the latest techno logy, it has the newest electronic controller.The switch can be used by manual operation, electric operation and operation from a long distance. Electronic controller is installed in a stainless steel cabinet which is suitable for using under all kinds of climatic conditions. In addition, there are some wired and wireless...

Rated Voltage Rated Frequency BIV (SF6 0.07Mpa / 20℃） Insulation level of zero pressure Lighting Impulse Relative Fracture 1min The highest phase voltage 5min Rated current Rated short-circuit making current（0.07Mpa / 20℃） Breaking capacity under zero pressure Peak withstand current Short time making current Rated short time withstand current Rated cable charging breaking current Rated line charging breaking current Rated closed-loop breaking current Exciting current Rated current breaking times Rated working pressure Main circuit resistance Mechanical stability

5. Type of Sf6 Load Break switches Load switch with Porcelain Bushing Load switch with Polymer Terminal Load switch with Polymer Bushing Load switch with Arrester

6. Switch and Control panel 6.1 Ground fault Phase fault over current protection. Short circuit protection. Auto Reclosing. Self-check function. Cold load pick up. Inrush restraint Loss of phase protection.

The LBS uses “puffer” interrupters inside a fully welded and sealed stainless steel tank filled with SF6 gas. Three interrupters are ganged together on a common shaft that is driven by an over‐centering spring mechanism which is activated either by: Manual rotation of the operating arm using a hook sticks from ground level. By pulling downwards on the appropriate side of the arm the LBS can be opened or closed. The mechanism is “operator independent

7. Installation 7.1 On the pole by Cross arm

7.3 Installation of earthing terminal