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[China]
Trade Verify
Address: No. 488, Cuishan Road, Anzhen District, Wuxi City, Jiangsu Province, China
Contact name:Mary Ji
METALWORK MACHINERY (WUXI) CO.LTD |
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Verified Suppliers
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VS1-12 (ZN63A) indoor high-voltage vacuum circuit breaker adopts
closed insulating form and installs inside and outside pleat on the
main insulating cylinder. Its comparative creeping distance reaches
the standard of DL. The excellent characters of the circuit breaker
are as follows: small size, reliable insulation, no pollution,
anti-explosive, stable performance, precise technical parameters,
long maintenance cycle and so on.
VS1-12 (ZN63A)indoor high-voltage vacuum circuit breaker is a fixed
type circuit breaker developed and designed on the basis of
handcart type VS1. It can match with the cabinets such as XGN2,
GG1A and GGX2 and replace the disqualified old breaker (eg. oil
circuit breaker). The circuit breaker owns many merits, such as few
changes, low investment, easy installation and saving time.
Technical Parameters:
| Items | Unit | Date | |||
| Rated voltage |
KV | 12 | |||
| Rated impulse withstand voltage | 75 | ||||
| Rated short-time power frequency withstand voltage (1min) | 42 | ||||
| Rated frequency | Hz | 50 | |||
| Rated short-circuit breaking current | KA | 20 | 25 | 31.5 | 40 |
| Rated current | A | 630 1250 | 630 1250 | 1250 1600 2000 2500 | 1600 2000 2500 3150 4000 |
| Rated short-time withstand current | KA | 20 | 25 | 31.5 | 40 |
| Rated peak tolerable current | 50 | 63 | 80 | 100 | |
| Rated short-circuit making current (peak value) | 50 | 63 | 80 | 100 | |
| Secondary circuit power frequency withstand voltage (1min) | V | 2000 | |||
| Rated operation sequence | O－0.3S－CO 180S－CO | ||||
| Rated duration of short circuit current | S | 4 | |||
Rated single/back-to-back capacitance bank breaking current Set breaking current | A | 630/400 (40KA is 800/400) | |||
| Rated capacitor bank Inrush making current | KA | 12.5 (Frequency≤1000Hz) | |||
| Opening time (rated voltage) | ms | 20～50 | |||
| Closing time (rated voltage) | ms | 35～70 | |||
| Mechanical life | times | 10000 | |||
| Rated short-circuit breaking current breaking times | times | 50 (40KA is 30) | |||
| Allowable wear accumulate thickness of moving and static contacts | mm | 3 | |||
| Rated closing operating voltage | v | AC110/220 DC110/220 | |||
| Rated opening operating voltage | v | AC110/220 DC110/220 | |||
| Rated voltage of energy storage motor | v | AC110/220 DC110/220 | |||
| Rated power of energy storage motor | w | 70 | |||
| Energy storage time | s | ≤15S | |||
| Contact opening distance | mm | 11±1 | |||
| Contact stroke | mm | 3.5±1 | |||
| Contact bounce time | ms | ≤2 (40KA≤3) | |||
Three - phase opening and closing heterogeneity | ms | ≤2 | |||
| Average opening speed (front 8mm) | m/s | 0.9～1.3 | |||
| Average closing speed | m/s | 0.5～0.8 (40KA is 0.5～0.9) | |||
| Opening contact rebound amplitude | ms | ≤3 | |||
| Main circuit resistance | Ω | ≤50(630A) ≤45(1250A) ≤35(1600～2000A) ≤25(above 2500A) | |||
| Closing contact pressure | N | 2400±200 (25KA) | |||
| 3100±248 (31.5KA) 4250±250 (40KA) | |||||
