您要查找的是不是：
- This paper analyses the reason that neutral current is not zero when linear three phase system load connects to three phase four wire system source in Y connection. The resolution is also given. 分析了线性三相对称负载Y联接在对称三相四线制电源时 ;中线电流不为零的原因 ;并给出了解决的方法 .
- It is widely interested how to construct an active power filter to suppress the harmonics in three phase four wire system. 三相四线制系统中如何使用有源电力滤波器来抑制线路中的谐波，这一问题越来越被人们所重视。
- INTEREST: 10000 PCS OF THREE PHASE FOUR WIRE LOW VOLTAGE KILO WATT HOUR METER (10/40) A. 我公司求购三相低压电表，有意者请与我们联系！
- AC three phase four wire system with neutral earthed 中性点接地的交流三相四线系统
- three phase four wire system 三相四线制
- A correct method for measuring the fundament component of power in a high-distorted three phases system is described its cost is rather low. 摘要描述了一种在三相波形高度畸变的系统中可正确测量基波功率的方法。
- Main Circuit Structure Type and Control of The Active Power Filter Use For Three Phase Four Wire 三相四线制有源电力滤波器主电路的结构形式与控制
- A new algorithm for random harmonic current detection based on ip-iq principle without phase lock loop in three phase four wire system 三相四线制任意次谐波电流的无锁相环ip-iq检测新方法
- A two wire SYSTEM then requires two twisted pair, and a four wire SYSTEM requires three twisted pair. 一个二线制系统两个双绞双绞线对，一个四线制系统需要三个双绞线对。
- Three phase four wire couper 三相四线耦合器
- Three phase four wire plugs 三相四线插头
- This paper explores and tells law during preparing oil-water-coalpaste(OWCP),and involves electrical conductivity in two phases system(O-W),viscosity and combustion heat in three phases system(O-W-C). 研究并叙述了油水煤浆在制备过程中的特性规律,涉及二相(油-水)体系的电导率,三相(油-水-煤)体系的粘度、燃烧热值;
- three phase four wire 三相四线制
- This paper proposes a control method for the three phase three wire VSR under the unbalanced system. 三相电网不平衡时,电压会存在负序分量。
- This control method was applied to a three phase AC/DC/AC conversion system. 该控制思想在三相AC/DC/AC系统中进行了实验验证。
- Its advantages are high speed and precision especially in multi phase system. 它在多组份，尤其是多相系统中具有计算速度快、精度高等优点。
- asymmetrical three phase system 不对称三相系统
- Note 1 Single display the three phase total active power. 注1:单屏显示三相总有功功率。
- The use of the four wire method and the photoelectric segregation technology raises the test precision and disturbance resistibility. 采用四线法和光隔技术，提高了测试精度和系统的抗干扰能力。
- Three phase wiring saves 50% of power compared with one-phase. 三相电源比单相电源可省电逾50%25之多。
