Experiment of Temperature Rise and Simulation of the Temperature Field of Grounding Resistor 接地电阻器温升实验及温度场仿真研究
With the HE-EMCON diode and the new field stop NPT IGBT up to 1700 V there is almost no limitation in the switching behavior, however, there are some considerations-a certain value in the external gate resistor has to be taken. 采用HE-EMCON二极管和高达1700V的新型场截止NPTIGBT,几乎不受开关性能的限制,不过,需考虑的是外部栅极电阻必须取确定值。
This article describes the working principle of the dual-pole field breaker with high energy nonlinear ZnO resistor and the essential conditions for successful deexcitation. 阐述双断口磁场断路器配高能氧化锌非线性电阻灭磁系统的工作原理、成功灭磁所必须具备的条件;
Thermal resistor, a kind of thermometric element, is extensive used in the field of astronautics. Because of bad concordance, the corresponding relationship between the resistor and temperature must be calculated when the element is used. 热敏电阻是一种在航天领域广泛应用的测温元件,由于其一致性差,使用时必须给出每个元件的电阻&温度对应关系。
A finite difference method for the temperature field for the heating resistor of thermal printer heads 热印头发热电阻温度场的有限差分法
A field emission array is proposed with structure of mesh shape distribution resistor layer. 文章提出一种具有网格状分布电阻层结构的场发射阵列(FEA)。
Based on the analysis on breaking process of field discharge switch, the paper presents approaches to improve its operation performance ( Ioad) by using high-energy ZnO voltage dependent resistor, LC oscillating circuit and PTC element. 通过对灭磁开关分断过程的分析,提出了利用高能ZnO压敏电阻、LC振荡电路、PTC元件来提高灭磁开关电寿命的技术途径。
In this paper, the design of the protection system for HT-7U Superconduction Tokamak Poloidal field ( PF) coils is discussed. Numerical value range of the dump resistor and the maximum pressure of helium during the quench for PF1 coil are given. 该文讨论了HT&7U超导托卡马克极向场线圈保护系统的设计,给出了PF1线圈保护电阻的取值范围及失超时氦的最高压力。
The field tests of Touch Potential Difference ( TPD) and Step Potential Difference ( SPD) at the point of artificial single phase grounding fault are introduced, which is done on Shenzhen 10 kV distribution network with 16 Ω neutral point grounding resistor. 介绍了深圳10kV配电网中性点16Ω电阻接地方式运行条件下,人工单相接地故障,故障点接触电位差、跨步电位差的实测试验。
Because of existing multi-powers and interacting each other, the thermal analysis of Multi-Chip Module ( MCM) represents a much more complicated situation than encountered with single-chip packages. In this article the thermal field of several basic MCM structure are analyzed by thermal resistor net method. 与单芯片封装相比,对多芯片组件(MCM:Multi-ChipModule)进行热分析时,由于存在多个热源,各个热源之间相互影响,使得热分析变得比较复杂。
The operating principle of over-voltage protection based on high performance ZnO resistor is introduced, and the technical parameter selection and calculation methods of field suppression system are presented with technical requirements of ZnO resistor, field suppression equipment and rotor over-voltage protection. 介绍了基于高能ZnO电阻的过电压保护器工作原理,结合ZnO电阻性能、灭磁装置和转子过电压保护的相关技术要求总结了灭磁系统技术参数的选择、计算方法。
Analysis and preventing method for burn through of traction motor's magnetic field diverter resistor of DF_ ( 4B) locomotive DF(4B)型机车牵引电动机磁场削弱电阻烧损的原因分析和防止措施
It presents redundant de-excitation protection problem, and introduces the system which is make up of DMX ( Machinery field breaker) DDL ( Electronic break er), and ZnO ( Nonlinear resistor) in detail. 详细介绍了由DMX(磁场断路器)、DDL(电子断路器)和ZnO(非线性电阻)组成的冗余灭磁保护系统。
The Existing Perplexities of Dual-pole Field Breaker with High Energy Non-linear ZnO Resistor and Its Improvement 双断口磁场断路器配高能氧化锌非线性电阻灭磁存在问题与改进
Materials of perovskite structure with rare-earth doped can be used in integrated light emitting devices, field emission devices and positive temperature coefficient resistor. 稀土掺杂的钙钛矿结构的材料可应用于集成光发射器件、场致发射显示器、蓝绿全固态致密激光器和正温度系数电阻器等方面,引起了人们对它们的研究热潮。