Mechansim for VCB, VATB

1.1 Product model and name

Among CTB series spring operation mechanism, CTB-S is manual energy-storage operation mechanism, while CTB-D is electric energy-storage operation mechanism.

1.2 Main functions and applications
1. 2. 1 This mechanism can be used to operate ZW32-12 outdoodr H. V. vacuum circuit breaker, as well as other indoodr(outdoor) vacuum circuit breaker whose closing and output rotated angle equivalent to ZW 32. Its manual operation mechanism has functions of manual energy-storage, manual closing(opening). Electric operation mechanism has functions of electric(manual) energy-storage, electrical and manual closing (opening). To realize over-current protection, it can be matched with FDK combination surge controller.
1. 2. 2 Its performance conforms to requirements of GB"AC High-voltage Circuit Breaker"and"Technicak Condition".

1. 3 Normal using conditions

Ambient temperature of storgae：≤＋65℃， ≥ -40℃；

Ambient temperature of using：≤＋65℃， ≥ -30℃；

Relative humidity:daily average≤95% monthly average≤90%(+25℃)

Altitude: ≤3000m； Wind speed:≤35m/s

Using place: no fire, explosion, severe pollution, corrosion, or intense vibration