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Hubei Dayu Hanguang Vacuum Electric Co.,Ltd.
CN EN

Embedded Poles

Model:EEP-12/1600-40A

Category:Embedded poles


Product details

HEP1-12 1250-31.5A 12 1250-25A.jpg
HEP1-12 1250-31.5A 12 1250-25A-2.jpg

Specifications of Embedded Pole

Main Technical SpecificationUnitSpecification
12501250630
Rated voltagekV12
Rated currentA12501250630
Rated frequencyHZ50/60
Short time power frequency withstand voltage(1min)kV48
Lightning impulse withstand voltagekV95
Rated short circuit breaking currentkA31.52525
Rated peak withstand currentkA8063
Rated short circuit making currentkA8063
Rated short time withstand currentkA31.52525
Rated duration of short circuitS4
Rated breaking current of single capacitor bankA400
Rated breaking current of back to back capacitor bankA400
Rated operating sequenceO-0.3s-CO180s-CO
Breaking operations of rated short circuit breaking currentTimes30
Rated mechanical enduranceTimes20000
Closing force due to bellow and atmosphereN200±50
Force required to hold contacts open at full strokeN300±50
Circuit resistance at lower limit of rated contact force≤20
Contacts limit erosionmm3
Gas pressure inside vacuum interrupterPa≤1x10?3
Localize dischargePc≤5

Mechanical Data Required for the Matched Vacuum Switchgear

Main Technical SpecificationUnitSpecification
12501250630
Clearance between open contactsmm9±1
Average opening speedm/s1.2±0.2
Average closing speedm/s1.0±0.20.6±0.2
Rated of contact forceN2300±2002000±200
Contact bouncing duration at closing operationms≤3
Out of simultaneity of contact closing and openingms≤2
Maximum rebound during openingmm≤3

Relevant information

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