Heat transfer problems in electrical transformers have been analysed for more than 70 years.
传热问题，在电力变压器进行了分析，为70多岁。
They were developed as heat exchangers in electrical transformers, and were widely used in plastics and paper manufacturing.
多氯联苯在变压器中被用作热交换器，广泛用在塑料和纸张的制造中。
The electrical power grid is particularly vulnerable to these extra currents, which can infiltrate high-voltage transmission lines, causing transformers to overheat and possibly burn out.
相对于这些电流而言，电网极其脆弱。这些电流混入高压传输线引起变压器过热且可能烧毁。
Putting satellites in 'safe mode' and disconnecting transformers could protect them from damaging electrical surges.
将卫星调到“安全模式”，并断开与变压器的链接，会保护他们不收电磁脉冲的伤害。
But the big fear is what might happen to the electrical grid, since power surges caused by solar particles could blow out giant transformers.
但是大的麻烦可能是电网，由太阳粒子导致的电涌会毁掉大型变压器。
Electrical mechanics may specialize in working with certain types of apparatus, such as electric motors or transformers, or in performing certain functions, such as winding coils.
电气技师可能专注于某种特定类型的装置，如电动马达或变压器，或执行某些功能，例如绕组线圈。
Before their manufacture was banned in 1979, PCBs were used widely in electrical equipment, including transformers.
在他们于1979年禁止生产，多氯联苯广泛应用于电力设备，包括变压器。
Electrical mechanics maintain, test, rebuild and repair electric motors, transformers, switchgear and other electrical apparatus.
电气技师维护，测试，重建和修复电动机，变压器，开关柜及其他电器设备。
Test repaired motors, transformers, switchgear or other electrical apparatus to ensure proper performance.
测试修理电机，变压器，开关柜或其他电器设备，以确保适当的性能。
Electrical Circuitry: Converters stabilize the current's varying frequencies. Transformers boost voltage from 690 volts to more than 22,000, so current travels efficiently over long-distance lines.
电气线路：利用整流装置稳定电流的变化频率，此外通过变压器把690伏特的电压提升到超过2200 0伏特，大大提高了电流长途输送的效率。
Electrical Circuitry: Converters stabilize the current's varying frequencies. Transformers boost voltage from 690 volts to more than 22, 000, so current travels efficiently over long-distance lines.
电气线路：利用整流装置稳定电流的变化频率，此外通过变压器把690伏特的电压提升到超过2200 0伏特，大大提高了电流长途输送的效率。
Numerous mechanical rooms and electrical vaults on campus house transformers and other PCB-containing equipment such as capacitors and switches.
许多机械室和校园内部变压器等含有多氯联苯的电容器和开关等电气设备的金库。
Together with the operation experience, the type and position of transformers fault can be determined correctly through comprehensive analysis on the data of electrical test and gas chromatography.
结合平时的运行经验，对电气试验和气相色谱分析数据进行综合分析，可以比较准确地判断变压器故障类型和故障部位。
Now some transformers with special connected mode of winding are applied in the electrical engineering.
现在电力系统中，变压器设计与选型上出现了一些特殊绕组变压器。
Electromagnetic surge or pulse has blown up step-up transformers in a Russian dam within this past year, and created complete electrical failure in Air France 447.
去年，俄国的一个大坝的变压器已因为电磁浪涌或者电磁脉冲而爆炸，导致了法国航空公司的447班机的电力系统崩溃。
Three-phase dry type transformers are featured by simple construction, easy use and convenient maintenance and used as required by electrical drive systems.
三相干式变压器结构简单、使用方便、容易维修，在工厂中得到广泛应用，在电力拖动控制系统中要根据实际需要进行选择。
Determined the electrical parameters of the charge IC, booster transformers, rectifiers, capacitance, trigger coil, excitation capacitor and IGBT, I completed the final printed circuit boards.
在确定了充电ic、升压变压器、整流器、大电容、触发线圈、激发电容、IGBT等元器件的电学参数之后，最终完成电路板印制。
Additionally, some kinds of new electrical energy meters with special functions, and transformers and electrical energy metering chips are introduced.
另外，还介绍了几种特殊功用的新型电能表、互感器和常用电能计量芯片。
Ajax Transformer Co. , Inc. is a Northeast based designer and manufacturer of quality transformers, chokes, reactors and related electrical equipment.
阿贾克斯变压器有限公司是坐落于东北的质量变压器、扼流圈、感应器及有关电气设备的设计商和制造商。
The product range also supports electrical device manufacturers of filters, converters, inverters, transformers, power supplies and industrial batteries.
该产品系列还支持过滤器，变频器，逆变器，变压器，电源供应器及工业用电池等电气设备制造商。
Current transformers are commonly used in metering and protective relays in the electrical power industry.
电流互感器通常与电流表、控制电路、保护继电器配套使用。
Its high dielectric strength and electrical resistivity are ideal for applications in high voltage transformers and power electronics.
因为其非常高的绝缘性，其可以用于高压变压器和高功率电子元器件的冷却。
Differential relay a differential relay is a protective device that is fed by current transformers located at two different series points in the electrical system.
差动继电器作为保护装置，差动继电器由位于系统中两个不同位置的电流互感器提供反馈信息。
The chain equivalent circuit is generally used for analysis of wave transmission of windings in transformers and electrical machines.
链式电路是变压器和电机绕组波过程分析时所普遍采用的一种等效电路。
In order to detect the oil level of electrical power transformers in the substations accurately and automatically, a method based on the infrared image is put forward.
为了自动准确地检测出变压器油位，本文提出了一种基于红外图像的检测方法。
The sensor uses two revolving transformers to transfer the electrical source and the signal without contacting. It also implements remote monitoring tests through the field bus technology.
该传感器使用两组旋转变压器实现了电源及信号的非接触传递，并通过现场总线技术实现远距离测试监控。
A differential relay is a protective device that is fed by current transformers located at two different series points in the electrical system.
差动继电器作为保护装置，差动继电器由位于系统中两个不同位置的电流互感器提供反馈信息。
Silicon steel which is mainly used as iron core in transformers and electrical machinery is a kind of important function material.
硅钢主要用作变压器和电机的铁芯，是一种重要的功能材料。
Silicon steel which is mainly used as iron core in transformers and electrical machinery is a kind of important function material.
硅钢主要用作变压器和电机的铁芯，是一种重要的功能材料。
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