1) radar wave shielding
雷达波屏蔽
2) radar dome
雷达天线屏蔽器
3) blister
[英]['blɪstə(r)] [美]['blɪstɚ]
天线屏蔽器;雷达天线罩
4) Pacific Barrier Radar Complex
太平洋屏蔽雷达网
5) lightning shielding
雷电屏蔽
1.
Based on the discharge theories of long air gap,a leader propagation model on lightning shielding failure is presented in this paper.
为评估、计算输电线路雷电屏蔽性能即绕击性能,基于长空气间隙放电理论建立了特高压直流输电线路雷电屏蔽的先导发展模型,并用该模型计算了拟建立的云广±800 kV直流特高压输电线路雷电屏蔽性能。
2.
Based on both multi-wave impedance model of towers and lightning leader development based lightning shielding model, the lightning withstand performances of back striking, shielding failure for ±800kV UHVDC transmission line as well as related influencing factors are analyzed.
基于杆塔的多波阻抗模型和基于先导发展的雷电屏蔽模型,分析了云广±800kV特高压直流输电线路的反击、绕击耐雷性能及其影响因素。
3.
In South China where lightning is rather active, the tripouts of UHV transmission lines, which are caused by the failure of lightning shielding, frequently occur, so it is necessary to research the lightning shielding performance of UHV transmission line in depth.
雷害是输电线路故障的主要原因,在我国南方多雷地区,超高压输电线路频繁发生雷电屏蔽失效引起的跳闸,有必要更深入地研究超高压输电线路的雷电屏蔽性能。
6) shielding harmonic
谐波屏蔽
1.
A novel self-coupled compensated and shielding harmonic converter transformer is proposed,its structure has advantage of self-coupled function of transformer and originates moving the reactive compensation equipment to the inner windings,which will greatly decrease the voltage scale of reactive compensation equipment.
针对城轨交通供电系统的传统换流站产生的谐波和无功功率由变压器绕组注入交流网侧,既增大变压器制造成本,又产生噪音问题,提出了一种具有内部三角形绕组的自耦补偿与谐波屏蔽换流变压器,它将传统无功补偿装置移至绕组内部且公共绕组的等效短路阻抗为零阻抗设计,使二次侧各种谐波源无法进入高压网络,有效抑制了供电系统中的谐波成分,从而具备自耦补偿和谐波屏蔽功能。
2.
The new converter transformer is provided with self-coupled compensated and shielding harmonic by displacing the compensated equipment to the inner windings for shielding the harmonic in both sides of the converter transformer windings efficiently.
提出了一种新型换流变压器的设计方案,将无功补偿装置移至换流变压器绕组内部,使其自身具备了自耦补偿和谐波屏蔽的功能,有效地对换流变压器的原副边绕组进行滤波,从而克服了无功功率和谐波给变压器带来的绕组和铁心中增大附加发热和噪音与振动问题,大大降低了换流变压器的负载损耗。
补充资料：电磁波屏蔽材料
分子式：
CAS号：
性质：能屏蔽电磁波干扰的材料。制法有：(1)在电器外壳上涂镀低熔点金属的金属层，或是在表面涂敷混有金属粉的导电性涂料；(2)用含金属的纤维或含导电成分的树脂配合料制成金属屏蔽壳。所制成的膜或壳的导电率至少应在10S/cm以上。
CAS号：
性质：能屏蔽电磁波干扰的材料。制法有：(1)在电器外壳上涂镀低熔点金属的金属层，或是在表面涂敷混有金属粉的导电性涂料；(2)用含金属的纤维或含导电成分的树脂配合料制成金属屏蔽壳。所制成的膜或壳的导电率至少应在10S/cm以上。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条