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。
To reduce operation times,lower damage degree of fault equipment and improve the stability of the station and the power system,according to the geographic characters of the underground power house,PKG2C air-break switch and HEC8 SF6 circuit breaker are selected.
文中结合减少运行操作次数、减轻设备故障损坏程度、提高龙滩水电站和电网安全稳定运行水平等问题,并根据龙滩地下厂房的地理特点选择PKG2C型空气开关或HEC8型SF6断路器,并对GCB与外来备用电源的选择进行了分析。
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
Analysis of a shut-down accident caused by automatic air switch trip
一次自动空气开关跳闸引起停机事故的分析
When supply pressure drops to atmospheric, air break must relieve pressure between both checks.
当供应压力下降到大气压力时，空气开关节点必须释放两个止回阀之间的压力。
Working as a designer in Zhejiang Dada Electricity Ltd. major in air button design.
10浙江达达电器有限公司产品开发部任设计员，主要负责空气开关设计。
Disconnect the vacuum harness connector from the back of the heater-A/C mode control switch on the control panel.
从控制仪表板上的空调暖气模式控制开关上断开真空线束接头。
Of, relating to, or having the constitution of air.
空气的空气的，有关空气的或由空气组成的
The vacuum valve opens to admit air.
真空阀开启以补充空气。
(knob which operates the) valve controlling the flow of air into a petrol engine
阻风门（开关）（控制进入汽油机空气量的阀门）
See Air Circuit Breaker, Main Breaker, Molded Case Circuit Breaker and Power Circuit Breaker.
（见空气线路断路器、主开关、塑壳线路断路器等）。
Research on Air Gaps Selection of 750 kV Switching Station in High Altitude Area
高海拔地区750kV开关站空气间隙选择研究
Atmospheric port is now open permitting air to enter air break chamber.
大气端口现在开启，让空气进入空气断开腔。
"Shut off the electric power supply to heater, close cold water inlet, open a hot water faucet to allow air to enter the system and open the drain valve, which is threaded to receive a standard hose coupling."
首先关闭电源开关,关闭冷水进口阀门,打开热水水龙头让空气进入管道系统,并且打开排水阀。
air tank drain cock
气箱排放塞［开关］
a rush of cold air,eg as a window is opened
一股冷空气（如开窗时）.
Man cannot live without air.
人离开了空气不能生存。
compressed air tunnelling method
压缩空气开挖隧道法
open the window to admit air
打开窗放进新鲜空气