Xi'an AB-3S-12 permanent magnet vacuum circuit breaker

1. Overview
The outdoor fast three-phase permanent magnet vacuum circuit breaker (recloser) adopts the principle of vacuum arc extinguishing, permanent magnet operating mechanism, and integrates microprocessing technology, modern network communication technology and new switch manufacturing materials. The rated voltage is
,
three-phase AC outdoor power distribution equipment. This product is widely used as a disconnecting or contact switch in urban power grids, or as an outlet switch in outdoor substations in rural power distribution systems. It can effectively complete the dividing and closing of load currents and short-circuit currents.
2. Normal working conditions
The upper limit of ambient air temperature does not exceed
+, the lower limit does not exceed
-, and the hourly average temperature does not exceed
+ . The altitude of the installation site shall not exceed
meters.
The relative humidity of the atmosphere does not exceed
when the ambient air temperature is
+, and there can be higher humidity at lower temperatures. The monthly average of the wettest month is the lowest
When the temperature is
+
, the average maximum relative humidity is
, and the condensation that occurs on the product surface due to humidity changes is taken into account.
The pollution level is level three.
The operating location is free of strong vibrations and shocks
, no harmful gases that corrode metals and damage insulation
, no serious dust
, and no conductive particles and dangerous substances.
3.
Main technical parameters of permanent magnet vacuum circuit breaker
●
Rated voltage:
●
Rated current:
(
)
●
Rated short-time (
) power frequency withstand voltage:
●
Rated lightning impulse withstand voltage:
●
Rated short-circuit breaking current:
●
Rated short-circuit making current (peak value):
●
Thermal stable current (
):

●
Dynamic stable current (peak value)

●
Rated short-circuit current breaking times:
times
●
Rated frequency:
●
Mechanical times
times
●
Main circuit resistance:
●
Current sensor ratio:
～
●
Working power supply voltage
+
●
Creepage distance
●
Working environment temperature:
-～
+ Weight
+
4.
Common models of permanent magnet vacuum circuit breakers





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