本装置配有过流保护、负序电流保护、零序电路保护、起动时间过长保护、低电压保护。
Over current protection, negative current protection, zero sequence current protection, over time of start protection and low voltage protection is configured in the device.
这种方法不需要硬件同步电路，能实时地计算电源电压中的基波正序分量。
The proposed method doesn't need hardware synchronization circuit and can perform the calculation of fundamental positive sequence component of the supply voltage in real time.
电力有源滤波器能动态补偿不对称三相电路的畸变电流、负序电流分量。
Active power filter can compensate current components which include distortion and negative sequence current components when it is used in unbalanced three-phase circuit.
信号报警显示部分由零序电压检测、报警、显示等电路构成。
The latter makes use of zero sequence voltage detection, alarm and display circuit.
L 297芯片产生脉宽可调的脉冲相序信号，该信号作为双极性桥式功率驱动电路的输入信号，放大后驱动步进电机。
L297 chip generates pulse phase sequence signals of which the pulse width is adjustable. The signals are the input ones of dual bridge driving circuit and drive the stepper motor after amplification.
在逻辑门电路测试技术中，可以在泛序测试法基础上建立故障诊断树，用于完成单电路故障的检测与定位诊断。
In the technologys of logic circuit test, we can use diagnosis tree to finish the test of logic element fault.
用白炽灯与电感或电容组成的简易相序指示器电路、参数之间的关系可以有很多种不同选择。
We can choose various parameter in phase - order indicator formed by bulb and capacitor or inductor.
而且还具有多种组合，可适合两路、三路或六路触发电路的需要，并对电源无相序要求。
The trigger circuit has multifunction, which will satisfy trigger circuit needs and suit two or three and six cannula trigger circuit, but doesn't require phase-sequence.
电子控制线路根据需要可以增加多种保护功能电路，如：漏电、欠电压、缺相、相序等等保护功能电路。
The electronic control line can be added with multiple protecting circuits, such as the protecting circuits for leakage, undervoltage, phase failure, phase sequence, etc.
电子控制线路根据需要可以增加多种保护功能电路，如：漏电、欠电压、缺相、相序等等保护功能电路。
The electronic control line can be added with multiple protecting circuits, such as the protecting circuits for leakage, undervoltage, phase failure, phase sequence, etc.
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