Adding current and voltage sourcing capabilities to a measuring instrument provides an extra degree of versatility for many low level measurement applications.
在测量仪器上附加电流和电压源功能，为各种低电平测量应用提供了额外的灵活性。
Because of the low test current level used, a very sensitive voltmeter is required to measure the voltage drop, which is usually in the microvolt range.
由于所使用的测试电流很低，所以就需要非常灵敏的电压表来测量这种通常在微伏范围的电压降。
Shielding may also be applied to a conductor carrying a high level test voltage to prevent interference with nearby low level circuits.
承载高测试电压的导体也应该采用屏蔽，以防止与邻近的低电平电路发生干扰。
Holding license of Electricity low and high voltage, level senior license is preferred.
持有高低压电工证，高级电工证是优先的。
In distributions, because of its low-level voltage, its neutral point used to disconnect to the ground in order to improve its reliability.
城市配电网因为其电压等级较低，为了提高系统供电的可靠性，曾广泛采用中性点不接地系统方式。
Using Schottky barrier diodes for D1 and D2 rather than common diodes reduces the low-level voltage on the bus, improving the noise margin.
使用肖特基二极管d1和D2，而不是普通二极管，为的是减少总线上低状态电压，改进噪声极限。
Combining with the practical research and development of the computer measure and control system, the paper introduces an automatic method to measure the "low-level and wide-range voltage signals".
结合笔者从事计算机测控系统的研发实践，介绍一种测量“低电平宽量程电压信号”的自动测量方法。
Almost all the power converters in use up to now are line-commutated, when the level of active power is low, and reactive power consumed is high, being very harmful for the connection bus voltage.
至今几乎所有的电力变换器为在线换向式的当有功功率较小，而消耗的无功较大时，对所联接母线的电压是非常有害的。
The contact voltage drop was low in the initial stage of wear, then rose to a certain level, finally became stable.
结果表明：在电磨损初期接触电压降较小，随着时间延长，接触电压降上升并趋于稳定；
The hydrogen and oxygen gasses will be separated from the water at the low level of voltage amplitude;
氢气和氧气的气体会从水中分离在电压幅度低的水平；
Ground-fault protection of low-voltage systems is a considerable problem because of the presence and nature of low-level arcing ground faults.
接地故障的低电压系统的保护是因为存在和电弧接地故障的低级别的性质相当严重的问题。
The output buffer has ability of switching the output voltage to be low level and high level in high-speed.
此输出缓冲器可快速地将输出电压切换为低电平和高电平。
But the invasion of lightning surge may lead its failure due to its low voltage withstand level which may affect the normal service power system.
微机保护系统是电力系统的重要组成部分，但由于其耐压水平低，雷电波侵入电源系统时易导致设备的损坏，严重影响了电力系统的正常运行。
High voltage level-shift circuitry allows low voltage logic signals to drive IGBTs in a high side configuration operating up to 1200V.
高电压电平漂移电路允许低压逻辑信号来驱动的IGBT在高达1200V一种操作高侧配置。
To meet the need of renovation in secondary system, it is demanded to develop the new types of voltage and current transducers with low output level.
文章分析了常规电压和电流互感器面临的问题 ，提出了新的解决途径 ，即采用低功率、紧凑型数字光电量测系统。
In order to improve the practicability of the low voltage power line carrier communication (PLCC) some high level communication protocols should be applied.
为了提高低压电力线载波通信的实用性，需要配合使用合适的高层通信协议。
Some techniques in application of RS-232C, such as voltage level transfer, transfer with low dissipation, and application of system, are described in this article.
主要介绍了RS - 2 32C串口的一些应用技术：电平转换、低功耗转换、系统实际应用。
Some techniques in application of RS-232C, such as voltage level transfer, transfer with low dissipation, and application of system, are described in this article.
主要介绍了RS - 2 32C串口的一些应用技术：电平转换、低功耗转换、系统实际应用。
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