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Corona Discharge Unit
Corona Discharge Unit

... The discharge unit is based on the corona discharging principle and consists of a mixing cell with two separate ionization heads and a control unit. The control unit is used for parameter settings and function monitoring. Based on the physical principle of corona discharge caused by electrical field ...
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SIGMA  Advanced Generator Protection and Control
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Microgrids Modelling Testing - Spiral

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High Reliability Multiport Multiphase DC Hub
High Reliability Multiport Multiphase DC Hub

... transmission will use higher voltage level than the current operating HVDC lines. The planned VSC-HVDC lines to the year 2017 use different voltage levels [11]. The DC grids based on DC CB are not able to interconnect DC lines with different voltage levels or to incorporate HVDC lines based on LCC w ...
Technical data: (ICE 45A- 150A)2-6S LiPo,6
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RA01L9595M 数据资料DataSheet下载

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DC Machine - Portal UniMAP

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... conditioners, fans, refrigerators, and other domestic and commercial appliances, etc., and generally behave as nonlinear loads. These loads may create problems of high input current harmonics and excessive neutral current. The neutral current consists of mainly triplen harmonics currents. The zero-s ...
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... 10V) of the 2N3904 spec sheet. What is the saturation current and saturation voltage (VCE at saturation)? The light bulb is in the circuit to let you know that current is flowing. If you don't want to use a bulb, use a small resistor (< 100 W) in its place. A resistor box for R may be useful in this ...
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... opamp becomes a "Darkness Emitting Diode", also known as a "DED". What many people don't know is that although bipolar transistors are not usually killed by being reverse biased, you can permanently degrade the noise performance of a low noise high gain amplifier transistor by reverse-avalanching it ...
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ADP7118/ADP7142 - Analog Devices

... For line regulation measurements, the output of the regulator is monitored while the input of the regulator is varied. For good line regulation, the output must change as little as possible with varying input levels. To ensure that the device is not in dropout during this measurement, VIN must be va ...
Primary-Side Sensing Takes Complexity out of Isolated Flyback
Primary-Side Sensing Takes Complexity out of Isolated Flyback

... waveform. During the switch off-period, the diode delivers the current to the output, and the output voltage is thus reflected to the primary-side of the flyback transformer (or the switch node). The magnitude of the switch node voltage is the summation of the input voltage and reflected output volt ...
< 1 ... 1160 1161 1162 1163 1164 1165 1166 1167 1168 ... 1974 >

Mains electricity



Mains electricity is the general-purpose alternating-current (AC) electric power supply. In the US, electric power is referred to by several names including household power, household electricity, house current, powerline, domestic power, wall power, line power, AC power, city power, street power, and grid power.The two principal properties of the electric power supply, voltage and frequency, differ between regions. A voltage of (nominally) 230 V and a frequency of 50 Hz is used in Europe, most of Asia, most of South America and Australia. In North America, the most common combination is 120 V and a frequency of 60 Hz. Other voltages exist, and some countries may have, for example, 230 V but 60 Hz. This is a concern to travelers, since portable appliances designed for one voltage and frequency combination may not operate or may be destroyed by another.The use of different plugs and sockets in different regions provides some protection from accidental use of appliances with incompatible voltage and frequency requirements.
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