Principles of Reactive Compensation and Control System for Arc Furnace Power Circuit 电弧炉供电线路的无功补偿原理与控制系统
For arc ultrasonic excitation, both the continuous and the pulse signal was separately applied to the test system including a conventional arc welding circuit. 在常规弧焊回路中采用了连续波和脉冲敲击式等不同的激励方式获得电弧超声信号。
The principle and structure of power supply and HF arc ignition circuit is analyzed in detail. 详细分析了电源系统和高频引弧电路的结构组成和工作原理。
When the arc short circuit happens, this way can also give fast protection. 在线路发生弧光短路时,也能快速实现保护。
For 6~ 10kV complete set of power distribution equipment, many faults of switchgear cabinet are mainly caused by arc short circuit. 在6~10kV成套配电装置中,由于电弧短路引起开关柜的故障率目前很高。
The Transient Magnetic Field Analysis of a Rotating Arc SF_6 Circuit Braker SF6旋弧式断路器瞬态吹弧磁场的数值分析
The Data Measured of Welding Arc Short Circuit Transient Process 焊接电弧短路过渡过程数据的检测及处理
Relationship between Discharge Time of Low Energy Arc and Circuit Parameters 低能电弧放电时间与电路参数间的关系
Protection against arc short circuit for switchgear cabinet set 成套开关柜的电弧短路保护
Development of No-Arc Circuit Breaker 配电电器用触头型无弧断路器的开发技术
Arc prolong circuit design and arc prolong efficiency study in synthetic test 合成试验的延弧回路设计及延弧效能研究
The reliability of TIG arc welding inverter are discussed in this paper. It points out the key techniques of raising arc welding inverter reliability in main circuit, control circuit, high-frequency arc start circuit and others. 讨论了TIG逆变弧焊电源的工作可靠性问题,从主电路、控制电路、高频引弧电路等方面阐述了提高弧焊逆变器可靠性的关键技术。
An Experimental Investigation into the Use of an SF_6 Rotary Arc Circuit Breaker as an HVDC Switching Element 旋弧式SF6断路器开断高压直流电流性能的实验研究
The Process Analysis of an Automatic Control System Based on RTOS and PLC for Delaying Arc Charge Circuit 基于RTOS和PLC的延弧充电回路自动控制系统工作分析
The arc striking circuit with low current and mathematic model is developed and used, the smooth arc striking has been achieved successfully. 在该逆变器中设置了小电流引弧电路,建立了数学模型,成功地实现了引弧电流软启动。
The success of the practical operation in Xi'an High Voltage Apparatus Research Institute show that the system meets the requirements of reliable, real-time and effective control to the delaying arc charge circuit in conditions of high voltage, high current and strong electromagnetic disturbance. 该方案在西安高压电器研究所的成功运行表明:该系统在高电压、大电流、强电磁干扰的环境下,能够可靠地实现对延弧充电回路实时、有效的控制。
Arc Suppression Circuit Connected in Series with Non-linear Damping Resistors& Type DFD Large Capacity Non-linear Resistor 串联在消弧线圈接地回路中的非线性阻尼电阻&DFD型大功率非线性电阻器
A cybernetic model system scheme on interaction of arc and circuit is introduced and its functions in the field of studying the bum-ning and quenching processes of arc are discussed in this paper. 本文介绍了电弧和电路相互作用的“控制论”模型系统图,并论述了它在研究电弧燃烧和熄灭过程力面所起的作用。
The some trends of low voltage intelligent electrical apparatus including new function of electronic release, asynchronous modular contactor with intelligent control and arc fault circuit breaker were introduced. 从低压断路器智能脱扣器功能的增强和扩展、接触器的异步组合式智能控制及电弧故障断路器几个方面来介绍近期低压电器智能化发展的动态。
Because of the difference of arc circuit, the welding process of twin-wire indirect arc gas shielded welding is more stable than single wire welding. 由于电弧回路结构不同,双丝间接电弧气体保护焊的焊接过程比单丝焊更加稳定。
Calculation of arc short circuit current in low voltage networks 低压电弧短路电流计算
The problem of annual arc welding power source whose output is surge and power factor is lower, is solved by means of main circuit, arc ignition circuit and arc static circuit working together. 通过主回路、引弧电路、稳弧电路的共同作用,解决了一般弧焊电源输出脉动大、功率因数低的缺点。
Based on an analysis of single phase equivalent of a ferro silicon arc furnace circuit, it is indicated that the discrete capacitor installation is effective to improve the effeciency of using electricity This way may be used in the other arc furnace. 通过分析硅铁电弧炉的单相等效电路,说明安装分布电容器对于提高电弧炉的用电效率十分有效。此结果可应用于其它类型的电弧炉。
Study on single-chip controlled arc ignition circuit 单片机控制接触引弧电路的研究
Arc fault circuit interrupter ( AFCI) can find out arc fault, and automatically cut off power supply to avoid causing more serious accidents. Its key function is accurate discrimination of the arc fault. 电弧故障断路器能够发现故障电弧,自动切断电源,避免引起更为严重的后果,其工作的关键在于准确辨识故障电弧。
With the increasing of transfer frequency, the equivalent arc circuit current is incline to rise, and result in the more heat input for base metal. 随着熔滴过渡频率的增加,等效燃弧电流呈上升趋势,对母材的热输入也有所提高。
The main circuit was used of two inverters and high-voltage full-bridge arc stability circuit to re-igniting the arc. 其中主电路部分采用二次逆变结构,并且为了实现焊接过程中的电弧再引燃,增加了全桥高压稳弧电路。
So, it is important to use reliable arc fault circuit interrupter in the aviation safety field. 因此,将可靠的故障电弧断路器用于航空安全领域有着重要的意义。
No matter in petrochemical enterprises or in the department stores, or in the residential buildings, once grounding arc short circuit takes place and effective measures are not taken, leakage fire will be caused, which threatens the lives and property. 无论是在石油、化工等企业,还是在商场或居民楼宇,一旦发生接地电弧性短路而未采取有效的措施,将会产生漏电火灾,对人员及财产安全产生极大的影响。
At the same time the arc fault diagnosis program is put forward. Finally, the Arc Fault Circuit Interrupter ( AFCI) is designed, and a prototype is produced. 同时提出了电弧故障的诊断方案。最后设计了电弧故障断路器(AFCI)的硬件和软件结构,并制作了样机。