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Hubei Dayu Hanguang Vacuum Electric Co.,Ltd.
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Embedded Poles
  • Product name:

    Embedded Poles

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    Category: Embedded poles
    Model: HEP-12/3150-40A
Product details

HEP-12 3150-40A-1.jpg         HEP-12 3150-40A-2.jpg


HEP-12 3150-40A-4.jpg

Main Technical Parameter
Rated voltage12kV
Rated current3150A
Rated frequency50Hz
Rated short-time Power frequency withstand voltage48kV
Rated lightning impulse withstand voltage85kV
Rated short-circuit breaking current40kA
Rated short-circuit making current(peak)100kA
Breaking operations of rated short circuit breaking current30 times
Rated breaking current of single capacitor bank630A
Rated short-time withstand current40kA
Rated peak withstand current100kA
Rated duration of short-circuit4s
Mechanical endurance10000 times
Closing force due to bellow and atmosphere210±30N
Force required to hold contacts open at full storke310±70N
Circuit resistance at lowest rated contact force≤20μΩ
Contacts limit erosion3mm
MECHANICAL DATA REQUIRED FOR THE MATCHED VACUUM SWITCHGEAR
Clearance between open contacts11±1 mm
Average opening speed1.2±0.2m/s
Average closing speed0.6±0.2m/s
Rated added extemal contact final force5300±200N
Contact bouncing duration at closing operation≤2 ms
Closing and opening non-simultaneity of three-phase contacts≤2 mm