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

Embedded Poles

Embedded Poles

Model：EEP3-12/1600-40

Category：Embedded poles


Product details

HEP3-12 1250-25 12 630-25.jpg

HEP3-12 1250-25 12 630-25-2.jpg

Specifications of Embedded Pole

Main Technical SpecificationUnitSpecification
1600125016001250
Rated voltagekV12
Rated currentA1600125016001250
Rated frequencyHZ50/60
Short time power frequency withstand voltage(1min)kV48
Lightning impulse withstand voltagekV95
Rated short circuit breaking currentkA4031.5
Rated peak withstand currentkA10080
Rated short circuit making currentkA10080
Rated short time withstand currentkA4031.5
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 atmosphereN120±50
Force required to hold contacts open at full strokeN200±50
Circuit resistance at lower limit of rated contact forcemΩ≤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
1600125016001250
Clearance between open contactsmm10±1
Average opening speedm/s1.05±0.151.20±0.2
Average closing speedm/s0.7±0.11.0±0.2
Rated of contact forceN4250±2502300±200
Contact bouncing duration at closing operationms≤2
Out of simultaneity of contact closing and openingms≤2
Maximum rebound during openingmm≤3

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