The number of turns required depends on the input and output voltages of the planar transformer based on the standard transformer voltage equation: Vp / Vs = Np / Ns Where: Vp = Primary Voltage Vs = Secondary Voltage Np = Number of Primary Turns Ns = Number of Secondary Turns Once the t...
The equation for thevoltage regulation of transformer, represented in percentage, is Voltage Regulation of Transformer for Lagging Power Factor Now we will derive the expression of voltage regulation in detail. Say laggingpower factorof the load is cosθ2, that means angle between secondary current ...
Shell-typetransformer壳式变压器 Passage5 Transformer单击此处编辑母版标题样式 oil-immerseddistributiontransformers Passage5 Transformer单击此处编辑母版标题样式 dry-typetransformers Passage5 Transformer单击此处编辑母版标题样式 Currenttransformer Passage5 Transformer单击此处编辑母版标题样式 Voltagetransformer...
The ideal transformer equation relates the primary and the secondary voltage as follows: Vs=Vp⋅NsNp,Vs=Vp⋅NpNs, where: Vs [V]Vs [V]— Voltage at the secondary coil; Vp [V]Vp [V]— Voltage at the primary coil; NsNs— Number of windings of the primary coil; and NpNp— Number...
Similarly, the voltage equation of the secondary side of the transformer will be: Theory of Transformer On Load, with Resistance as well as Leakage Reactance Now we will consider the condition when there is leakage reactance of the transformer as well as winding resistance of the transformer. ...
power factortransformervoltage equationwinding lossOur invention relates to transformers, and particularly to reactive transformers having an adjustable equivalent ... SM Lucas - US 被引量: 41发表: 1938年 Load loss standard for testing and calibrating high voltage power measuring systems A current-compa...
• The voltage equation of the secondary winding is 1 0 z I m Φ fN E U 1 1 1 44 . 4 j 2 20 E U 2.2.3 The equivalent circuit and phasor diagram of transformers in no-load condition • The no-load current has two components and one of them is the magnetization current...
Transformer diagram 2-1 Figure 2-1 is a single-phase transformer structure, we can write the no-load voltage of the primary winding of the equation Where N1, R1, respectively, for the primary winding turns and the resistance (2.2) (2.1) can be rewritten as Where α t = 0, U1, such...
The external excitation mainly includes the voltage, current and working environment, these factors can be measured during the operation of the transformer. Resonance frequency is the internal factor that determines the vibration frequency of the transformer. It is determined by the transformer structure...
When a sinusoidal voltage Vp is applied to the primary with the secondary open-circuited, there will be no energy transfer. The impressed voltage causes a small current I0 to flow in the primary winding. This no-load current has two functions: (1) it produces the magnetic flux in the ...