SCHVB-40.5(P)/T(3AV3)系列户内手车式真空断路器适用于三相交流50Hz、40.5kV系统中，可供工矿企业、发电厂及变电站作为分合负荷电流、过载电流故障电流之用，并适用于频繁操作场合。
本断路器采用上下布置结构，有效地降低断路器的深度。并采用复合绝缘结构、三相灭弧室和相联带电体由三只独立的环氧树脂绝缘罩壳相隔离，采用复合绝缘结构之后，断路器满足正常运行条件下的空气距离和爬距要求，并有效地减少了断路器的体积，主导电回路 真空灭弧室和动静导电联接安装在绝缘筒内，使相间仅为300mm。主回路电气连接全部采用固定连接具有很高的可靠性。
主要技术参数
| 序号 No | 项目 Item | 单位 Units | 技术参数Technical parameters | ||||
| 1 | 额定电压 Rated voltage | kV | 40.5 | ||||
| 2 | 额定电流 Rated current | A | 1250 | 1600 | 2000、2500 | ||
| 3 | 额定短路开断电流Rated short-circuit breaking current | KA | 25 | 31.5 | 25 | 31.5 | |
| 4 | 动稳定电流( 峰值)Dynamic current (peak) | KA | 63 | 80 | 63 | 80 | |
| 5 | 4S 热稳定电流4S thermal current | KA | 25 | 31.5 | 25 | 31.5 | |
| 6 | 额定短路关合电流( 峰值)Rated short circuit making current (peak) | KA | 63 | 80 | 63 | 80 | |
| 7 | 额定短路电流开断次数Rated short-circuit current breaking times | 次Times | 20 | ||||
| 8 | 额定操作顺序Rated operating sequence | O-0.3s-CO-180s-CO | |||||
| 9 | 额定绝缘水平 Rated insulation level |
1min 工频耐压1min power frequency withstand voltage | kV | 95 | |||
| 雷电冲击耐压(峰值)Lightning impulse withstand voltage (peak) | 185 | ||||||
| 10 | 机械寿命Mechanical life | 次Times | 10000 | ||||
| 11 | 额定单个电容器组开合电流Rated single capacitor device ON-OFF current | A | 630 | ||||
| 12 | 额定背对背电容器组电流Rated single back-to-back capacitor device current | A | 400 | ||||
| 13 | 储能电机额定电压Rated voltage electrical energy storage | V | AC、DC：110；220 | ||||
| 14 | 储能电机额定功率Energy Storage Power Rating | W | ≤ 230 | ||||
| 15 | 储能电机储能时间Electrical Energy Storage Energy Storage time | S | ≤ 15 | ||||
| 16 | 合分闸线圈额定电压Hop Tripping coil rated voltage | V | DC：110；220 | ||||
| 17 | 合分闸线圈额定电流Hop Tripping coil rated current | A | 1.05(110V) 0.96(220V) | ||||
| 18 | 触头开距Contactor opening distance | mm | 20±2 | ||||
| 19 | 触头接触行程Contactor Contact trip | mm | 7.5±1.5 | ||||
| 20 | 三相合分不同期性At the different period of three consistency | ms | ≤ 2 | ||||
| 21 | 触头合闸弹跳时间Contact closing bounce time | ms | ≤ 3 | ||||
| 22 | 主回路电阻( 不包括触臂)Leading electrical circuit resistance( excluding contactor arm) | μ Ω | ≤ 40 | ||||
