This product can operate ZN28 indoor HV vacuum breakers that fixed on boxes and
other kinds of HV breakers which have the equal switching work. It has functions
of over current protection and under-voltage releasing protection. The
mechanical life is 20000 times. Due to the narrow width only 330 mm, it not only
increases the stability of the mEchanism, but also makes it more suitable for
no-oil reform. (output angle of this mechanism is from 50 °to 55 °) Technical
parameters: Specifications of CT19B and data of critical pieces, to see table 1:
type | Weight(kg) | volume | input power of electromotor(W) | Spring of switch on (mm) | Opening and closing current(KA) |
CT19B-Ⅰ | 38 | 550×330×180 | 110 | Ф7 | 20 |
CT19B-Ⅱ | 38 | 550×330×180 | 110 | Ф8 | 31.5 |
CT19B-Ⅲ | 38 | 550×330×180 | 150 | Ф8+Ф4 | 40 |
Technical data of opening
and closing electromagnet of CT19B mechanism, to see table 2:
Rated voltage(V) | ~110 | ~220 | ~380 | -48 | -110 | -220 | |
rated current(A) | open | 2.8 | 1.6 | 2.3 | 1.2 | ||
close | 1.5 | 1 | 1.5 | 0.68 | |||
Rated eleltrical power(W) | open | 308 | 352 | 255 | 264 | ||
close | 165 | 220 | 165 | 150 | |||
coil resistance at 20℃(Ω) | open | 12±0.6 | 48±2.4 | 48±2.4 | 190±10 | ||
close | 20±1 | 73±4 | 73±4 | 325±15 | |||
voltage range | Switch on :85%～110% of rated voltage | ||||||
Installation dimension:
Outline dimensional drawing and mechanical mounting dimension
