查询词典 earth circuit

A resistor is connected between the output end of the live wire and the output end of the earth wire, another resistor is connected between the output end of the null line and the input end of the earth wire, a neon lamp in a photoelectric coupling switch is connected at the two ends of the earth wire switch in parallel after being connected with the resistors in series, one end of a light sensitive resistor in the photoelectric coupling switch GR2 is connected with the anode DC+ of an integrated circuit IC power in the creepage protector, the other end of the light sensitive resistor is connected with the anode of a diode D3, the cathode of the diode D3 is connected with the triggering pole of the silicon-controlled rectifier SCR in the creepage protector, the neon lamp and the light sensitive resistor are positioned into a dark box, and a small hole which avoids the light sensitive resistor is formed on the dark box.

一种防止地线触点未导通的全能安全插头，包括各带开关的地、零、相三线接线和由零序互感器、脱扣器、放大器、整流器、试验回路和可控硅组成的漏电保护器，所述的火线输出端、地线输出端间连接电阻，所述的零线输出端、地线输入端间串接电阻，光电耦合开关内的氖灯与电阻串联后并联在地线开关两端，光电耦合开关GR2内光敏电阻的一端与漏电保护器内的集成电路IC电源正极DC＋连接、光敏电阻的另一端与二极管D3的正极连接，二极管D3的负极与漏电保护器内的可控硅SCR触发极连接，氖灯和光敏电阻置于暗箱中，暗箱上开一避开光敏电阻的小孔。

After being connected with a resistor in series, the primary input end of a transformer is connected with the output end of the live wire and the output end of the null line in parallel, the secondary output end is connected with the two ends of the earth wire switch in parallel after being connected with another resistor in series, one end of a neon lamp in a photoelectric coupler is connected with the input end of the earth wire E and a secondary end of the transformer, the other end of the neon lamp is connected with the centers of the two resistors, one end of a light sensitive resistor in a photoelectric coupling switch is connected with the anode of an integrated circuit power in the creepage protector, the other end of the light sensitive resistor is connected with the anode of a diode, the cathode of the diode is connected with the triggering pole of the silicon-controlled rectifier in the creepage protector, the neon lamp and the light sensitive resistor are positioned into a dark box, and a small hole which avoids the light sensitive resistor is formed on the dark box.

防止地线触点未导通的全能安全插头，包括各带开关的地、零、相三线接线和由零序互感器、脱扣器、放大器、整流器、试验回路和可控硅组成的漏电保护器，变压器初级输入端串联电阻后并接在火线输出端和零线输出端，次级输出端与电阻串联后并联在地线开关两端，光耦内氖灯的一端与地线E输入端和变压器次级的一端连接，氖灯另一端与二电阻的中心连接，光电耦合开关内光敏电阻的一端与漏电保护器内的集成电路电源正极连接、光敏电阻的另一端与二极管的正极连接，二极管的负极与漏电保护器内的可控硅触发极连接，氖灯和光敏电阻置于暗箱中，暗箱上开一避开光敏电阻的小孔。

Among them, the most familiar problems are unreliable earth, worn circuit, lacking moistureproof and waterproof measure, circuit that doesn't comply with national safe requirements and so on.

其中，接地不可靠，线路老化，缺乏防潮、防水措施，以及电路不符合国家安全要求是最常见的问题。

The unit can detect the position of withdrawable part and status such as circuit-breaker and earth switch, through I/O function-module control earth switch and withdrawable part.

监控单元软件完成了对可抽出部件的位置及接地开关和断路器等状态的检测，通过I/O模块实现对接地开关和可抽出部件的控制。

B DC high voltage power supply circuit short circuit, high voltage filter capacitor should check whether the breakdown leakage current, filament transformers for filament winding of whether the earth leakage, tube bracket fixed capacitor (high-frequency coupling capacitor) whether the breakdown leakage, rectifier diodes have breakdown short-circuit phenomenon

b 直流高压供电回路短路，应检查高压滤波电容是否击穿漏电、灯丝变压器的灯丝绕组是否对地漏电、电子管支架固定电容是否击穿漏电、整流二极管是否有击穿短路现象

Satellites two hundred miles above the earth's surface make a circuit of the earth in about ninety minutes.

距离地球表面200英里的卫星绕地一周需要大约90分钟的时间。

In this paper, for the single-phase earth fault occurred in one circuit of the double-circuit transmission line an adaptive distance protection approach for parallel double-circuit transmission line is proposed.

平行双回线结构的特殊性以及零序互感等因素造成距离保护继电器耐受过渡电阻的能力较弱，严重影响继电器的性能，传统的距离保护方法难以满足高压平行双回线的要求。

The paper analyse some protection exception report of the abnormalities of voltage secondary circuit, and points out the influence of two-point earth fault in secondary circuit and current electromagnetic induction of earth fault in power system.

本文通过分析多起由于TV二次回路异常造成的保护事故，指出目前针对TV二次回路两点接地和系统接地故障电流电磁感应对电压二次回路的影响，制定的各项反措在实际实施过程中，不能完全杜绝类似事故的发生。

ZG47-100H series earth leakage circuit breakers is assembled by ZG47-100H breaking mini circuit breaker and earth leakage release.

ZG47-100H系列漏电断路器由DZ47-100H高分断小型断路器和漏电脱扣器拼装而成。

This paper describes the circuit design of a 4GHz uncooled paramp for satellite communication earth station. The skin effect of the varactor series resistance is considered and the designing approach of the double-tuned signal circuit discussed as well.

本文叙述了用于卫星通讯地面站的4千兆赫非冷参放的电路设计，考虑了变容二极管串联电阻趋肤效应的影响以及讨论了双调谐信号电路的设计方法。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了