EnglishSF6 circuit breakers are vital for ensuring stability and reliability in high-voltage networks, and Fenarro leads the way in both performance and eco-compliance.
High Voltage Circuit Breakers
Electric Type
Normal Type Circuit Breaker
Vacuum
Fixed & Withdrawable
MCCB
| Availability: | |
|---|---|
| Quantity: | |
| NO. | ITEM | UNIT | VALUE | ||
| 1 | Rated voltage | kV | 24 | ||
| 2 | Rated short-time power frequency withstand voltage (1min) | kV | 65/79 (phase-to-phase, ground/opening) | ||
| 3 | Rated lightning impulse withstand voltage (peak) | kV | 125/145 (phase-to-phase, ground/opening) | ||
| 4 | Rated frequency | Hz | 50 | ||
| 5 | Rated current | A | 630, 1250 | 630, 1250, 1600 2000,2500,3150 | 630, 1250, 1600 2000,2500,3150 |
| 6 | Rated short-circuit breaking current | kA | 20/25 | 31.5 | 40 |
| 7 | Rated short-time withstand voltage | kA | 20/25 | 35.5 | 40 |
| 8 | Rated short-circuit duration | s | 4 | ||
| 9 | Rated peak withstand current | kA | 50/63 | 80 | 100 |
| 10 | Rated short-circuit closing current | kA | 50/63 | 80 | 100 |
| 11 | Secondary circuit power frequency withstand voltage (1min) | V | 200 | ||
| 12 | Rated single/back-to-back capacitor group breaking current | A | 630/400(40kA for 800/400) | ||
| 13 | Rated capacitor group closing surge current | kA | 12.5(frequency not exceeding 1000Hz) | ||
| 14 | Mechanical life | time | 20000 | ||
| 15 | Rated current breaking times (electrical life) | time | 20000 | ||
| 16 | Rated short-circuit current breaking times | 50(40kA≤30) | |||
| 17 | Allowable cumulative thickness of dynamic and static contact wear | mm | 3 | ||
| 18 | Energy storage time | s | ≤10 | ||
| 19 | Contact opening distance | mm | 14±1 | ||
| 20 | Overtravel | mm | 3.5±0.5 | ||
| 21 | Contact closing bounce time | ms | ≤2(40kA≤3) | ||
| 22 | Intermittency of three-phase opening and closing | ms | ≤2 | ||
| 23 | Average opening speed (contact separation - 8mm) | m/s | 1.5±0.2 | ||
| 24 | Average closing speed (8mm - contact closure) | m/s | 0.8±0.2 | ||
| 25 | Dominant circuit resistance | μΩ | ≤50(630A)≤45(1250A) ≤35(1600-2000A)≤25(2500A and above) | ||
| 26 | Rated operating sequence | Opening - 0.3s - Closing - 180s - Closing | |||
| NO. | ITEM | UNIT | VALUE | ||
| 1 | Rated voltage | kV | 24 | ||
| 2 | Rated short-time power frequency withstand voltage (1min) | kV | 65/79 (phase-to-phase, ground/opening) | ||
| 3 | Rated lightning impulse withstand voltage (peak) | kV | 125/145 (phase-to-phase, ground/opening) | ||
| 4 | Rated frequency | Hz | 50 | ||
| 5 | Rated current | A | 630, 1250 | 630, 1250, 1600 2000,2500,3150 | 630, 1250, 1600 2000,2500,3150 |
| 6 | Rated short-circuit breaking current | kA | 20/25 | 31.5 | 40 |
| 7 | Rated short-time withstand voltage | kA | 20/25 | 35.5 | 40 |
| 8 | Rated short-circuit duration | s | 4 | ||
| 9 | Rated peak withstand current | kA | 50/63 | 80 | 100 |
| 10 | Rated short-circuit closing current | kA | 50/63 | 80 | 100 |
| 11 | Secondary circuit power frequency withstand voltage (1min) | V | 200 | ||
| 12 | Rated single/back-to-back capacitor group breaking current | A | 630/400(40kA for 800/400) | ||
| 13 | Rated capacitor group closing surge current | kA | 12.5(frequency not exceeding 1000Hz) | ||
| 14 | Mechanical life | time | 20000 | ||
| 15 | Rated current breaking times (electrical life) | time | 20000 | ||
| 16 | Rated short-circuit current breaking times | 50(40kA≤30) | |||
| 17 | Allowable cumulative thickness of dynamic and static contact wear | mm | 3 | ||
| 18 | Energy storage time | s | ≤10 | ||
| 19 | Contact opening distance | mm | 14±1 | ||
| 20 | Overtravel | mm | 3.5±0.5 | ||
| 21 | Contact closing bounce time | ms | ≤2(40kA≤3) | ||
| 22 | Intermittency of three-phase opening and closing | ms | ≤2 | ||
| 23 | Average opening speed (contact separation - 8mm) | m/s | 1.5±0.2 | ||
| 24 | Average closing speed (8mm - contact closure) | m/s | 0.8±0.2 | ||
| 25 | Dominant circuit resistance | μΩ | ≤50(630A)≤45(1250A) ≤35(1600-2000A)≤25(2500A and above) | ||
| 26 | Rated operating sequence | Opening - 0.3s - Closing - 180s - Closing | |||