3 phase power factor formula
[DOC File]The first step in analyzing a power system is to get the ...
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If it supplies a load of 24 MW at 132kV, 0.8 power factor lagging, determine the sending-end voltage and the voltage regulation. (Ans: 140kV; 6.0%) A 3-phase, 132 kV overhead line has a total series impedance of (10+j50) ohms and total shunt admittance of (j1.0x10-3) siemens at 50 Hz.
How to Calculate 3 Phase Power | Sciencing
Power in a three phase circuit is three times the single phase power or three times the current in one phase times the line to neutral voltage (VLN). The line to neutral voltage is the line to line voltage divided by the square root of three. (Eq. 2) Power factor (PF) is sometimes specified instead of X/R. This must be the short-circuit power ...
[DOC File]EXPT NO 1: MEASUREMENT OF RESISTANCE USING …
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A three-phase voltage of 11 kV is applied to a line having R = 10 ohm and X = 12 ohm per conductor. At the end of the line is a balanced load of P kW at a leading power factor. At what value of P is the voltage regulation zero when the power factor of the load is (a) 0.707, (b) 0.85? A three-phase 50 Hz transmission line is 400 km long.
[DOC File]TUTORIAL - 1
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Jun 17, 2002 · If the motor is existing, use nameplate data. If this is a new installation, use shaded blocks in Table 2. Find starting KVA from Table 3. Find starting power factor from Table 2. Calculate KW starting = (KVA start) (PF start). To find starting KVA if only locked rotor amps are known; 1 phase. KVA start = (locked rotor amps) (voltage) 3 phase ...
[DOC File]Line operation II
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What are the line current and the total three-phase power? 3. A three-phase motor draws a current of 10 amperes on a 440-volt line, and its power factor is 80 percent. Calculate the apparent power, the real power, and the reactive power. 4. A 3( transformer delivers 120 KVA to a 3( load at a line-to-line voltage of 2400 V. Calculate the current ...
[DOC File]OBJECT - SIUE
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EXPT. NO. 6 MEASUREMENT OF THREE PHASE POWER . AND POWER FACTOR. AIM. To conduct a suitable experiment on a 3-phase load connected in star or delta to measure the three phase power and power factor using 2 wattmeter method. OBJECTIVES. To study the working of wattmeter. To accurately measure the 3 phase power. To accurately measure the power factor
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