1. Overview 1.1 Model No & Name CTB spring operating mechanism have two types, manual type operating mechanism and motor type operating mechanism. 1.2 Its main functions and working conditions This operating mechanism will be used in ZW32-12 outdoor high voltage vacuum circuit breaker ( designed by Beijing Electrical Science Academy ) and other power nearby outdoor or indoor high voltage vacuum circuit breaker, its performances can meet requires of GB1984 and the products < Technical Conditions>; Manual type operating mechanism holds functions of manual energy-storage,manual closing/opening,overcurrent protection . Motor type operating mechanism functions including motor or manual energy-storage,electromagnet or manual closing/opening,overcurrent protection ,etc . To make overcurrent-protection -purposed contorrer have surge current, time-delay amd fast-breaking fuctions, this product is suitable under following working conditions : A.Surrounding air temperature up limit is +40,down litmit is -45. B.Elevation is not higher than 2000m, wind speed not over 35m/s. C. Related humidity , day average is not over 95%, month average is not 90% (+25). Water vapor pressure, day average is not over 2.2X10Mpa,month average is not over 1.8X10MPa. D. The using venue should be no fire accedent, explosion danger, serious dirtiness and severe shake . 1.3 Operating mechanisms weight: CTB manual type: 8.6kg. CTB motor type: 12kg 2. Structure and working principle 2.1 CTB operating mechanism ( manual type)s structure is as Pic1 CTB( motor type)s structure is as Pic2. PICTURE 1 1 . Installing Column 2. Pinion Gear 3 . Energy Storing Axis 4. Large Gear 5. Closing Half Shaft 6. Output Crankarm 7. Supporting Column 8. Breaking Click 9. Breaking Half Shaft 10. Overcurrent Coil 11. Energy Storing Crankarm 12 . Energy Storing Spring 13 . Cam 14. Main Axis 15. Wheel 16. Clutch Plate PICTURE 2 1 . Installing Column 2. Motor 3. Main Axis 4 . Energy Storing Axis 5. Pinion Gear 6. Spring Crankarm 7. Output Crankarm 8. Wheel 9. Breaking Click 10 Breaking Half Shaft 11. Breaking Coil 12. Overcurrent Coil 13. Breaking Spring 14. Closing Spring 15.Closing Clik 16. Cam 17. Supporting Column 18. Wheel 19. Closing Coil More Information,Please See Our Official Website: www.meletek.com
