Structure Features
1. Reliable modular spring operating mechanism: the layout of
spring operating mechanism is up-down style, which has the function
of manual storing energy and electric storing energy; Small size ,
good overall stiffness and performance
2. Sleeve structure(VS1-40.5): The vacuum extinguishing chamber of
main circuit is inside the closed insulating drum ;The material of
insulating drum is epoxy resin which have reliable mechanical and
electrical properties. Using advanced APG process molding, the
insulating drum have the role of support and interphase and
relative insulation effect
3. Encapsulated pole structure(VS1-40.5E):The conductive circuit
adopts solid encapsulation pole;Using advanced APG process molding,
put the vacuum interrupter and other parts (for primary circuit )
solid encapsulated with epoxy material, make a main circuit module.
With inside and outside double skirt design,the pole has features
such as large creepage distance, high mechanical strength, high
part accuracy, fewer parts, no secondary adjustments, and a small
lapped surface
4. Standard on-off function module: Modular design spring
mechanism, which includes two functional modules: closing and
opening; It has the characteristics of convenient maintenance,
quick replacement and short maintenance time; No readjustment for
the entire circuit breaker’s operating mechanism after replace the
closing and breaking module, which can reduce maintenance work
5. Better handcart interchangeability and adaptability,
installation size and ZN85, VD4 and other products; Strong breaking
ability, long service life
Normal service condition
Altitude | ≤1000m |
Ambient temperature | Max | +40℃ |
Min | -15℃ |
Ambient humidity: Maximum average humidity | 24 hour ≤95% |
1 month ≤90% |
Maximum water vapor pressure | 24 hours ≤2.2kpa |
1 month ≤1.8kpa |
The ambient air has no obvious pollution of dust smoke, corrosive
or combustible gases, steams or smog
VS1-40.5/E Technical Parameters
No. | Item | Unit | Parameter |
1 | Rated voltage | KV | 40.5 |
2 | Rated frequency | Hz | 50 |
3 | Rated power frequency withstand voltage/1 min | KV | 95 |
4 | Rated lighting impulse withstand voltage | KV | 185 |
5 | Rated current | A | 630 1250 1600 2000 2500 |
6 | Rated short-circuit breaking current | KA | 20 25 31.5 |
7 | Rated short-time withstand current | KA | 20 25 31.5 |
8 | Rated short-circuit marking current | KA | 5063 80 |
9 | Rated peak value of withstand current | KA | 5063 80 |
10 | Rated duration of short-circuit | s | 4 |
11 | Rated operating sequence | | O-0.3s-CO-180s-CO |
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