aThe instantaneous active power p (or instantaneous reactive power q ) in three-phase circuit is defined as the product of the modulus of voltage vector and the instantaneous active current p i (or instantaneous reactive current q i ) in 瞬间活动电源p (或瞬间无功功率q ) 在三相电路被定义作为...
aBabeFace007 BabeFace007[translate] aThe instantaneous active current p i and instantaneous reactive current q i in three-phase circuit are defined as follows 瞬间有功电流p i和瞬间易反应的潮流q i在三相电路如下被定义[translate]
In an ac circuit, the effective voltage isA.equal to the maximum instantaneous voltage.B.greater than the maximum instantaneous voltage.C.less than the maximum instantaneous voltage.的答案是什么.用刷刷题APP,拍照搜索答疑.刷刷题(shuashuati.com)是专业的大学
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If the instantaneous current in a circuit is given byI=20cos(ωt+ϕ)A, the rms value of the current is View Solution For an ac circuitV=15sinωtandI=20cosωtthe average power consumed in this circuit is View Solution Voltage input in a circuit is V = 300sin(ωt)with current =...
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In an ac circuit, the effective voltage is A、A) Equal to the maximum instantaneous voltage. B、B) Greater than the maximum instantaneous voltage. C、C) Less than the maximum instantaneous voltage. 查看答案 单选题 8005. An increase in which of the following factors will cause an increase...
Method of watching the instantaneous state of an electric circuit and especially of detecting a break in said circuitDisposing a portion of the path of a conductor circuit in the vicinity of two thin magnetic layers oriented and performs a differential detection of changes in resistance of said ...
aFor example, instantaneous elements in molded case circuit breakers have a higher trip threshold on dc systems than ac systems because they are essentially peak-detecting devices. Because the published timecurrent-characteristic (TCC) is typically calibrated for ac RMS currents, the manufacturers of ...
An analytical technique for predicting the open-circuit magnetic field distribution in the airgap/magnet region of a brushless permanent-magnet DC motor equipped with a surface mounted magnet rotor and a slotless stator was presented in Pt.I. In the present work, the analysis is extended to ...