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VACUUM
CIRCUIT BREAKER TYPE ABSVO-12 (OUTDOOR) |
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TECHNOLOGY:
The break - through of the Vacuum switching principle was
essentially due to the development of an Interrupter that
made it possible to use the vacuum circuit breaker for all
the switching functions in system operation. It was the result
of research on the arc quenching effects, on the most suitable
material to be used and design and construction. The advantages
offered by the vacuum switching principle make it the most
economically efficient at present and the breaker superior
to other designs:
- Constant
dielectric.
- Constant contact resistance.
- High total current switching.
- High reliability.
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FEATURES: |
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Provided with inter lock between disconnector and breaker.
- Reliable
operation
- Rigid
design.
- Compact.
- Guaranteed
voltage withstand.
- Uncomplicated
and maintenance free Mechanism -AB100.
- With
CT and PT (optional) with integral support structure.
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CONSTRUCTION |
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| Circuit
Breaker poles
Circuit
breaker consists of motor or manual charged spring operating
mechanism with 3 individual Vacuum interrupters housed
in porcelain housing actuated by common drive linkage
arrangement housed in fabricated support channels. Full
circuit breaker is supported by a steel channel structure
which is housing the mechanism at easy operating level
from the ground.
The
breaker has very high mechanical and electrical operating
strengths.
Due
to the simplicity of design totally maintenance free.
Breakers
are ideally suitable for Arc furnace duties in addition
to the feeder transformer capacitor bank etc.
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SPRING
OPERATED MECHANISM AB100 |
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AB100 Mechanism used with vacuum breaker
is of robust and reliable simple design. The linkages
are easily accessible incase maintenance is required.
Stored energy by the spring is used for closing and
tripping operations. Spare charge is also possible for
autoreclosure applications.
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| TECHNICAL
DATA: |
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| Rated
voltage (kV) |
12
kv |
| Power
frequency withstand voltage(kV) |
28 |
Impulse
withstand voltage(kVp)
(1.2/50 Micro sec. Wave) |
75 |
| Rated
current (A) |
630/1250/1600 |
| Symmetrical
breaking current (kA) |
25 |
| Breaking
current (peak kA) |
63 |
| Frequency
(Hz) |
50/60 |
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Note: Any accessory
,if required should be specified in addition to the above
type reference.
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