vacuum interrupter for ZN85 indoor circuit breaker
| Min. Order: | 3 Piece/Pieces |
|---|---|
| Payment Terms: | L/C, D/P, D/A, T/T, WU |
| Place of Origin: | Hubei |
Company Profile
| Location: | Wuhan, Hubei, China (Mainland) |
|---|---|
| Business Type: | Manufacturer, Distributor/Wholesaler |
Product Detail
| Model No.: | VTD544B |
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| Means of Transport: | Ocean, Air, Land |
| Type: | Vacuum |
| Poles Number: | 3 |
| Brand Name: | Feite |
Product Description
Main Technical Data
Please see the attachment.
| Rated voltage | 40.5KV |
| Rated current | 1600/2000A |
| Rated frequency | 50HZ |
| Rated short-time power frequency withstand voltage (1min) | 95KV |
| Rated lightring impulse withstand voltage (1 min) | 185KV |
| Rate short-circuit breaking current | 25/31.5KA |
| Rate short-circuit making current(peak) | 63/80KA |
| Rated operations of short-circuit breaking current interruption | 20 times |
| Rated single capacitor bank breaking current | 400A |
| Rated short-time withstand current | 25/31.5KA |
| Rated peak withstand current | 63/80KA |
| Rated duration of short-circuit | 4s |
| Mechanical life | 10000 times |
| Contact closing force due to bellows and atmosphere | 250±50N |
| Conterforce at rated contact stroke | 330±60N |
| Circuit resistance at rated contact atmosphere force | ≤25μΩ |
| contact erosion limit | 3mm |
| Shelf life | 20 years |
| Weight of moving parts | ≤4.0kg |
MECHANICAL DATA REQUIRED FOR MATCHED VACUUM SWITCHGEAR
Added contact force | 3100±200N |
| Average opening speed | 1.6±0.2m/s |
| Average closing speed | 0.75±0.2/s |
| Contact bouncing duration at closing operation | ≤2ms |
| Contact bouncing bank amplitude of opening operation | ≤4mm |
Three-pole simultaneity rated contact stroke | ≤2ms 22±2mm |
Note:Rated characteristics can be customised on requirment
