Sending end voltage

A 240 mm 3-core polymeric insulated cable 25 km in length feeds a static load of 20 MVA at a power factor of 0.95 lagging. The nominal system voltage is 33,000 V and the sending end voltage... 

Where Vs is the sending end voltage on Platform A Vr is the receiving end voltage on Platform B Sc is the load angle across the cable reactance X. 

Thus, the sending-end voltage (Vj) is calculated by using the characteristic impedance matrix from the three-phase currents ... 

Comparison of the measured and calculated results for phase a energization, (a) Sending-end voltages and (b) receiving-end voltages. 

The delay is the cause of the stair case rise of the sending-end voltage observed in Figure 2.8b. 

The sending-end voltage (VJ at t=0 is obtained by using the surge impedance [Zg] as... 

Figure 24.15 The line length effect even when the sending-end and receiving-end voltages and currents are maintained at unity p.f.

Figure 24.14 Phasor position of sending-end and receiving-end voltages in an overhead line...

The volt-drop AV is normally considered as a per-unit or percentage quantity with respect to the sending end line-to-Iine voltage V, therefore -... 

This impedance is seen by the sending end phase voltage hence the sending end cnrrent Is is,... 

Since the reactance X consumes no power, the receiving end power must equal the sending end power. (If the end voltages are not in steady state synchronism then the system is regarded as being unstable.)... 

Here, we consider the semi-infinite line shown in Figure 1.6. The AC constant voltage source is connected to the sending end (x = 0), and the line extends infinitely to the right-hand side (x = +oo). 

The frequency dependence of the propagation constant appears as a wave deformation in the time domain. This is measured as a voltage waveform at distance x when a step (or impulse) function voltage is applied to the sending end of a semi-infinite line. The voltage waveform. 

FIGURE 1.34 Equivalent circuit of a voltage source at the sending end. (a) A voltage source, (b) Equivalent circuit of (a), (c)... 

Figure 1.49 is a measured result of the step response on a three-phase line, when a step-function voltage eo(f) = 1 is applied to phase a at the sending end (x = 0) of the line. 

When a circuit breaker (CB, a switch) is closed at f = 0, the phase a voltage at the sending end is calculated as the ratio of source resistance R and the phase a characteristic impedance Zqq as... 

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