Model NO.: 811A
Poles Number: 3
Type: Vacuum
Function: Vacuum
Certification: ISO9001-2000, CQC
Warranty: 12 Month
Rated Valtatge: 12kv
Rated Current: 630/1250A
Rated Frequency: 50Hz
Rated Lighting Impulse Withstand Voltage: 85kv
Trademark: ZGVE
Transport Package: Standard Export Packing.
Specification: Vacuum
Origin: Wenzhou
HS Code: 8538900000
12KV Center Distance 205mm Solid Sealed Pole(812A) EP-12/630-25
Main Technical Data
| Main Technical Data | |
| Rated Voltage | 12kV |
| Rated Current | 1250/1600A |
| Rated Frequency | 50Hz |
| Rated Short-time power frequency withstand voltage(1min) | 48kV |
| Rated Lighting impulse withstand voltage | 85kv |
| Rated short-time withstand current | 25/31.5KA |
| Rated peak withstand current | 63/80kA |
| Rated short-circuit making current | 63/80kA |
| Rated shirt-circuit breking current | 25/31.5KA |
| Breaking operations of rated short circuit breaking current | 30times |
| Rated back-to-back cap acitor breaking current | 400A |
| Rated sigle capacitor bank breaking current | 630A |
| Mechanica life | 30000times |
| Contact closing force due to bellows and atmosphere | 100±30N |
| Counterforce at rated contact stroke | 200±30N |
| Circuit resistance at rated contact force | ≤20μΩ |
| Shelf life | 20 years |
| Contact erosion limit | 3mm |
| Part Discharge | ≤2pC |
| Rated Operating Sequence | O-0.3s-CO-180s-CO |
| Mechanical Data Required for matched vacuum switchgear | |
| Rated contact stroke | 9±1mm |
| Contact Connection Stroke | 4±1mm |
| Average opening speed | 1.1±0.2m/s |
| Average closing speed | 0.8±0.2m/s |
| Added contact force | 3000±200N |
| Contact bouncing duration at closing operation | ≤2ms |
| Out of simultaneity of contact closing and opening | ≤2ms |
| Max.overtravel | ≤2mm |
Dimensional Drawing
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