Focusing on a new method of protection is the increase transducer input of an air switch,air pressure-sensitive switch on the parallel resistance(400 V voltage varistor 865 kΩ optional) when there are high-voltage varistor time will be short-circuit air trip switch quickly to protect the inverter,the inverter greatly reduce the failure rate the scientific and practical results are obvious.
着重阐述了一种新的保护方法,就是在变频器的输入端加了一个空气开关,空气开关上并联压敏电阻(400 V电压选用865 kΩ压敏电阻),当有高压电时压敏电阻就会短路,空气开关迅速跳闸,保护了变频器,变频器损坏率大大降低,科学实用,效果显著。
Investigation of difference between protection standard and fact of switch;
电气开关的防水试验标准与实际间差异的探讨
Research on 3D CAD system of electric switches;
电气开关三维CAD系统研究
Optimizing design of sub-nanosecond gas switch with adjustable gap
可调间隙亚纳秒气体开关的优化设计
Breakdown characteristics of gas switch under nanosecond pulse voltage
纳秒脉冲电压下气体开关的击穿特性
Operating characteristics of subnanosecond gas switch
亚纳秒气体开关工作特性
For maintenance convenience,many electric switches for mine are adopted pinboard construction in order to reduce effect of coal mine production.
为了维修方便,许多矿用电气开关采用插接式结构,以减少对煤矿生产的影响。
air break switch
空气开关空气断路开关
frame type automatic air circuit
框架式自动空气开关
Turn on the gas and light the oven.
转动煤气开关点燃烤箱.
Symbol for various electrical switches. Switch type can be specified.
各种电气开关符号。可以指定开关类型。
Symbol for various electrical switches. Size can be specified.
各种电气开关符号。可指定大小。
Development of 3D CAD and Research of Virtual Assembly of Electric Switch Cabinets;
电气开关柜三维CAD的开发与虚拟装配的研究
air tank drain cock
气箱排放塞［开关］
corporation cork
(水管、煤气管的)总开关
Duplexer of gas discharge tube
气体放电管收发开关
pneumatic operator of window and skylight
窗及天窗气动开关器
antidetonation electric control pneumatic switch ball valve
防爆电控气动开关球阀
air-blast on-load isolator
压气式负荷隔离开关
The electrical interface and the electrical connection with PLC module of switch sensor
开关量传感器电气接口及与PLC模块的电气连接
Researches on Sustain High-Pressure Glow Discharge and its the Switching Power Supply;
高气压辉光放电及其开关电源的研究
Study on the Repetition-rate Long-lifetime Gas Spark Switch;
重复频率长寿命气体火花开关的研究
Discussion on giving post appraisal of petroleum exploration projects;
关于开展油气勘探项目后评价的思考
On Accounting Norms in Hydrocarbon Exploitation;
关于石油天然气开采会计准则的探讨
Study of Electrical Protection Controller of 3.3kV Combination Starter
3.3kv组合开关电气保护控制器的研究