12kV Indoor Vacuum Interrupter
12kV Indoor Vacuum Interrupter,TD-12/1250-20,TD-12/630-20
真空灭弧室技术参数说明 Technical Specification of Vacuum Interrupter
序号 No. | 主要技术参数 Main Technical Specification | Type型号 | ||
TD-12/1250-20 | TD-12/630-20 | |||
电压参数 Voltage Ratings at Rated Contact Stroke | ||||
1 | 额定频率Rated frequency (fr) | Hz | 50 | |
2 | 额定电压 Rated Voltage (ur) | kV | 12 | |
3 | 额定短时(1 min)工频耐受电压(ud) Rated short-time(1 min) power-frequency withstand ovltage | kV | 42 | |
4 | 额定雷电冲击耐受电压(峰值) (up) Rated Lightning impulse withstand voltage (Peak) | kV | 75 | |
电流参数 Current Ratings | ||||
1 | 额定电流Rated cureent (Ir) | A | 1250 | 630 |
2 | 额定触头压力下限时的回路电阻 Circuit resistance at lowest rated contact force | uΩ | ≤20 | |
3 | 额定短路开断电流(Isc) Rated short-circuit breaking current | kA | 20 | |
4 | 额定短路开断电流开断次数 Breaking operations of rated short circuit breaking current | Times | 30 | |
或按照GB/T1984-2003和IEC62271-100 E2级执行 Or afford with E2 class GB/T1984-2003 and IEC62271-100 | ||||
5 | 额定短时耐受电流Rated short-time withstand current (Ik) | kA | 20 | |
6 | 额定短路持续时间Rated duration of short-circuit (tk) | s | 4 | |
7 | 额定峰值耐受电流(Ip) Rated peak withstand current | kA | 50 | |
8 | 额定短路关合电流(IMC) Rated short-circuit making current | kA | 50 | |
★9 | 额定短路单个电容器组开断电流 Rated breaking current of single capacitor bank (ISb) | A | 400/630 | |
★10 | 额定背对背电容器组开断电流Rated breaking current of back-tp-back capacitor bank (Ibb) | A | 400 | |
11 | 额定操作顺序Rated operating sequence | 0-0.3s-C0-180s-C0 | ||
机械参数 Mechnical Data | ||||
1 | 运动部分质量 Weight of movable parts | kg | 1.1 | |
2 | 触头自闭力 Closing force due to bellow and atmosphere | N | 110±40 | |
3 | 额定开距下的触头反力 Force required to hold contacts open at full stroke | N | 210±60 | |
对开关机械特性需求 Mechanical Requirements | ||||
1 | 触头开距 Clearance between open contacts | mm | 8.5±1 | |
2 | 平均分闸速度(触头闭合位置 ~75%开距) Average opening speed (contact close position~75% contact gap) | m/s | 1.2±0.2 | |
3 | 平均合闸速度(30%开距~触头闭合位置) Average closing speed (30% contact gap-contact close position) | m/s | 0.6±0.2 | |
4 | 额定触头压力 Rated added external contact final force | N | 2000±200 | |
触头初压力Added external contact force at contact touch point | N | 1400±100 | ||
5 | 触头合闸弹跳时间 Contact bouncing duration at closing operation | ms | ≤2 | |
6 | 触头合闸和分闸不同期 Closing and opening non-simultaneity of three-phase contacts | ms | ≤2 | |
7 | 分闸触头反弹幅值 Maximum rebound during opening | mm | ≤2 | |
寿命Life | ||||
1 | 储存期 Storage life | years | 20 | |
2 | 机械寿命Rated menchanical endurance | Times | 10000 | |
3 | 触头允许磨损厚度 Contacts limit erosion | mm | 3 | |
说 明 Notes | ||||
1、产品符合或超过E2级和IEC62271-100以及GB1984-2003的要求。 Meets or exceeds the electrical endurance requirements of class E2 for autoreclosing duty per IEC 62271-100 and GB1984-2003. 2、★为需要时提供的额定参数。Rated characteristics to be given on request. 3、额定绝缘测试需要外绝缘保护,比如SF6气体、油或固体绝缘材料等。Rated insulation values require external insulation, such as SF6, oil or solid dielectric material etc. |
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