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BEIQIANG Power provides professional power products and comprehensive
solutions to ensure the safety of electricity consumption.
FZW-40.5 outdoor AC high-voltage isolation vacuum load switch is used in power supply networks with a rated voltage of 40.5KV, rated current of 1250A, and three-phase AC 50Hz
概述Product Structure
FZW□-40.5/D1250-25型户外高压隔离真空负荷开关中(以下简称负荷开关)是由我公司研制开发、并由我公司 生产的新一代高压电器产品，经严格的型式试验和长期试动行考核，各项技术性能指标全部达到GB3804和IE标准，适用于额定电压40.5kV,额定频率50Hz的供电网络中，可开断负荷电流，亦可开断一定距离的架空线路、电缆线路和电容器组的电容电流。具有分段、隔离、连接、切换等功能、适用于域网、农网、铁路、石化等架空配电线路。该负荷开关具有开断能力大，安全可靠，电寿命长，可频繁操作，少维护等优点.
FZW□-40.5 outdoor vacuum disconnecting load switch (short for load switch)is outdoor HV switchgear with three-phase AC 50Hz,ratedvoltage12/40.5kV.It is used for switching on/off load current in city or country distribution systems or breaking transfer currentof fuses.Matchingwith motor mechanism and controller,it can be used as a section switch or sectionalize.It uses new insulation structure design and vacuumexplosion chamber.After switching off,the load switch has an obvious visible fracture.It also has functions of disconnecting switch.Additionally,with big switching capacity and no oil,long electricity life and non maintenance,it will not pollute environment and explode.
使用环境条件Ambient condition
1.环境温度：+40℃~~40℃,日温差：25K;5.空气污染程度3级；
2.海拔高度：不超过2000米；6.在高湿度期间内温度降时可能凝露；
3.风压不超过700Pa(相当于风速34m/s);7.不适用于有火灾、爆炸危险、有化学腐蚀
4.振幅：无经常剧烈运动，地震烈度不超过8度。及剧烈振动的场所。
型号及其含义Model description
主要技术参数 Technical Parameters
| 序号 No | 名称 Name | 单位 Unit | 数值 Data |
| 1 | 额定电压Rated voltage | kV | 40.5 |
| 2 | 额定频率Rated frequency | Hz | 50 |
| 3 | 额定电流Rated current | A | 1250 |
| 4 | 额定有功负载开断电流Rated active load breaking current | A | 1250 |
| 5 | 额定闭环开断电流Rated loop breaking curren | A | 1250 |
| 6 | 5%额定有功负载开断电流5%Rated active load breaking current | A | 62.5 |
| 7 | 额定电缆充电开断电流Rated cable charging breaking current | A | 25 |
| 8 | 1min工频耐受电压：真空断口、相间、相对地/隔离断口 P.f withstand voltage for 1min:Across vacuum open contacts between phases、phase to earth /across open contacts | kV | 68/95/110 |
| 9 | 雷电冲击耐受电压：相间、相对地隔离断口 Lightning impulse withstand voltage:between phases. phase to earth /across open contacts? | kV | 185/215 |
| 10 | 额定短时耐受电流(热稳定)Rated short time withstand current | kA | 25 |
| 11 | 额定短路持续时间Rated short circuit duration | S | 4 |
| 12 | 额定峰值耐受电流(动稳定)Rated peak withstand current? | kA | 63 |
| 13 | 额定短路关合电流Rated short circuit making current? | kA | 63 |
| 14 | 机械寿命Mechanical endurance | 次Time | 10000 |
| 15 | 真空灭弧室触头允许磨损厚度 Allowable wear thickNess of contact of vacuum interrupter | mm | 0.6 |
| 16 | 操作力矩Operating torque | Nm | ≤300 |
外形及安装尺寸图 Outline dimension and installation drawing
概述Product Structure
FZW□-40.5/D1250-25型户外高压隔离真空负荷开关中(以下简称负荷开关)是由我公司研制开发、并由我公司 生产的新一代高压电器产品，经严格的型式试验和长期试动行考核，各项技术性能指标全部达到GB3804和IE标准，适用于额定电压40.5kV,额定频率50Hz的供电网络中，可开断负荷电流，亦可开断一定距离的架空线路、电缆线路和电容器组的电容电流。具有分段、隔离、连接、切换等功能、适用于域网、农网、铁路、石化等架空配电线路。该负荷开关具有开断能力大，安全可靠，电寿命长，可频繁操作，少维护等优点.
FZW□-40.5 outdoor vacuum disconnecting load switch (short for load switch)is outdoor HV switchgear with three-phase AC 50Hz,ratedvoltage12/40.5kV.It is used for switching on/off load current in city or country distribution systems or breaking transfer currentof fuses.Matchingwith motor mechanism and controller,it can be used as a section switch or sectionalize.It uses new insulation structure design and vacuumexplosion chamber.After switching off,the load switch has an obvious visible fracture.It also has functions of disconnecting switch.Additionally,with big switching capacity and no oil,long electricity life and non maintenance,it will not pollute environment and explode.
使用环境条件Ambient condition
1.环境温度：+40℃~~40℃,日温差：25K;5.空气污染程度3级；
2.海拔高度：不超过2000米；6.在高湿度期间内温度降时可能凝露；
3.风压不超过700Pa(相当于风速34m/s);7.不适用于有火灾、爆炸危险、有化学腐蚀
4.振幅：无经常剧烈运动，地震烈度不超过8度。及剧烈振动的场所。
型号及其含义Model description
主要技术参数 Technical Parameters
| 序号 No | 名称 Name | 单位 Unit | 数值 Data |
| 1 | 额定电压Rated voltage | kV | 40.5 |
| 2 | 额定频率Rated frequency | Hz | 50 |
| 3 | 额定电流Rated current | A | 1250 |
| 4 | 额定有功负载开断电流Rated active load breaking current | A | 1250 |
| 5 | 额定闭环开断电流Rated loop breaking curren | A | 1250 |
| 6 | 5%额定有功负载开断电流5%Rated active load breaking current | A | 62.5 |
| 7 | 额定电缆充电开断电流Rated cable charging breaking current | A | 25 |
| 8 | 1min工频耐受电压：真空断口、相间、相对地/隔离断口 P.f withstand voltage for 1min:Across vacuum open contacts between phases、phase to earth /across open contacts | kV | 68/95/110 |
| 9 | 雷电冲击耐受电压：相间、相对地隔离断口 Lightning impulse withstand voltage:between phases. phase to earth /across open contacts? | kV | 185/215 |
| 10 | 额定短时耐受电流(热稳定)Rated short time withstand current | kA | 25 |
| 11 | 额定短路持续时间Rated short circuit duration | S | 4 |
| 12 | 额定峰值耐受电流(动稳定)Rated peak withstand current? | kA | 63 |
| 13 | 额定短路关合电流Rated short circuit making current? | kA | 63 |
| 14 | 机械寿命Mechanical endurance | 次Time | 10000 |
| 15 | 真空灭弧室触头允许磨损厚度 Allowable wear thickNess of contact of vacuum interrupter | mm | 0.6 |
| 16 | 操作力矩Operating torque | Nm | ≤300 |
外形及安装尺寸图 Outline dimension and installation drawing