查询词典 resistance coil

With the increasing of the number of power cables and loads in mediumvoltage systems, low-resistance grounding and arc suppression coil groundinghave been the primary grounding methods of the neutral.

随着中低压配电网中电力电缆数量的增加以及用电负荷的增大，系统中性点采用小电阻或消弧线圈接地方式已取代过去的不接地方式成为中低压配电网运行方式的主流。

Holds that the air volume under the wet cooling condition should be taken as an assessment criterion in stead of that when dry cooling, that the fin pitch of the coil pipe should be optimised to keep proper cooling capacity, and that the number of water passages should be doubled to reduce the resistance within the limits stipulated in the standard and to improve the heat transfer conditions.

认为应以湿工况风量作为对风机盘管机组的考核标准，应合理确定盘管肋片的片间距以保证表冷器的供冷量，应改进水路结构，降低水阻力。

In this example, a relay with a 400 coil resistance was chosen so that a 2N3904 could drive it directly.

在这个例子中，一个400Ω电阻继电器线圈被选为一个2N3904可以使驱动器直接。

Medium voltage network ; switching surge ; automatic arc quenching coil ; microcomputer relay protection ; resonance grounding ; low resistance grounding

中压电网；内部过电压；自动消弧线圈；微机接地保护；谐振接地；低电阻接地

MSP430F169 microcontroller was the core components of control and measurement function of an electromagnetic relay characteristic parameter tester. The tester also included DC power module, power amplifier module, constant current source module, keys, and digital tube display module. The tester could test the data of 943-1C-12DS electromagnetic relays including the minimum pull-in voltage, maximum release voltage, relay coil voltage rating when the pull-contact time, release time as well as the contact value of the contact resistance. The system could complete automatic measurement parameters to achieve all the basic requirements of design. And all of the test data was displayed through the 74HC573 digital tube.

摘 要：以MSP430F169单片机作为控制和测量的核心部件，辅以直流稳压电源模块、功率放大电路模块、恒流源模块、按键和数码管显示模块等组成一个电磁式继电器特性参数测试仪，完成对943-1C-12DS电磁式继电器最小吸合电压、最大释放电压、继电器线圈电压为额定值时的触点吸合时间、释放时间以及触点接触电阻值的测试，该系统能够实现成套参数自动测量，所有测试数据通过74HC573数码管进行显示。

R H is the resistance of the coil at the end of the test; and

R H 是测试结束时的线圈电阻，并且

R C is the resistance of the coil at the beginning of the test

R C 是测试开始时的线圈电阻

A coil of low resistance and high inductance used in electrical circuits to pass direct current and ''.

在电路中让直流电通过削弱交流电的低电阻高感应系数的线圈。

In metal foil above with UV ink business card printing and membership card making 30 μm thick corrosion resistance of antenna coil Roadmap.

在金属箔上面用UV油墨制卡和会员卡制作30μm厚的抗腐蚀的天线线圈的线路图。

A coil of low resistance and high inductance used in electrical circuits to pass direct current and attenuate alternating current.

在电路中让直流电通过削弱交流电的低电阻高感应系数的线圈。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。