Question

A synchronous capacitor is connected to a 4 kV, 60 Hz line and absorbs 965 kVar....

A synchronous capacitor is connected to a 4 kV, 60 Hz line and absorbs 965 kVar. What equivalent value of capacitor (F or ?F, must show unit) can absorb this amount of reactive power?

Engineering   Electrical-Engineering   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

The reactive power can be given as ,the impedance across the capacitor is given by .

Given the voltage v = 4* 103 sin(2 **60) and the rms voltage Vrms = Vm/ .

The current that flowing through circuit is remaining calculations are shown in below image.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
A 3-phase, 5 MVA, kV, 60 Hz synchronous machine has a synchronous reactance of 10 ohms...
A 3-phase, 5 MVA, kV, 60 Hz synchronous machine has a synchronous reactance of 10 ohms per phase. The machine is connected to kV, 60 Hz bus and is operated as synchronous condenser (synchronous motor at no-load condition) a. For normal excitation (excitation voltage terminal voltage), find the line current. Draw the phasor diagram b. If the excitation is increased to 150% of the normal excitation, find the line current and reactive power delivered or absorbed by the bus. Draw...
A 3-phase, 1.2 MVA, Y-connected, 6.6 KV, 6-poles, 60 HZ, synchronous generator has a synchronous reactance...
A 3-phase, 1.2 MVA, Y-connected, 6.6 KV, 6-poles, 60 HZ, synchronous generator has a synchronous reactance of 30W and negligible resistance. The generator is connected to an infinite bus at 6.6 KV and 60 Hz. a)Determine the excitation voltage (Ea) when the machine is delivering rated power at o.8 PF lagging. b)The field excitation current is increased by 10% without changing the power input from the prime mover. Find the stator current (Ia), the power factor and the reactive power...
A three-phase, 9,375 kVA, 13.8 kV, 4-pole, 60 Hz, Y-connected synchronous generator has a synchronous reactance,...
A three-phase, 9,375 kVA, 13.8 kV, 4-pole, 60 Hz, Y-connected synchronous generator has a synchronous reactance, Xs = 17.9, and is connected to an infinite bus at rated voltage. If the rotational and electrical losses are negligivle, what is Ia, Ef, delta, theta, Tdrive, Phasor diagram, and power flow diagram (label completely with numerical values for, A) the machine as a generator; the prime-throttle is opened and If is adjusted so that the machine delivers rated kVA, 0.8 pf lagging,...
Three loads are connected in parallel across a 1500 Vrms - 60 hz. Load 1 absorbs...
Three loads are connected in parallel across a 1500 Vrms - 60 hz. Load 1 absorbs 23 kW and 14 kVAr capacitive. Load 2 absorbs 70 kVA with power factor 0.7 lagging. Load 3 absorbs 22kW with power factor = 1. Find: a) Complex impedance, seen from power source b) Power Factor of the setup and module of Rms current supplied by the source c) Complex impedance of Load 2 d) Value of capacitor to be connected to the combination...
A three phases, 6 MVA, 22 kV, 60 Hz synchronous machine has a synchronous reactance of...
A three phases, 6 MVA, 22 kV, 60 Hz synchronous machine has a synchronous reactance of 10 ohms per phase and has negligible stator resistance. The machine is connected to the 22 kV, 60 Hz bus and is operated as a synchronous condenser, Neglect rotational losses 7 a) For normal excitation, find the stator current. Draw the phasor diagram. b) If the excitation is increased to 120 percent of the normal excitation, find the stator current and power factor, draw...
A 42 kVA three-phase synchronous generator with line voltage 4.16 kV at a frequency of 60...
A 42 kVA three-phase synchronous generator with line voltage 4.16 kV at a frequency of 60 Hz, is connected in star configuration. The generator has a winding whose armature resistance is 0.8 Ω and a synchronous reactance of 7.4 Ω, both per phase. Determine the voltage regulation when the power factor is 0.600 lagging.
A 125 MVA 11 kV three phase 50 Hz synchronous generator has a synchronous reactance of...
A 125 MVA 11 kV three phase 50 Hz synchronous generator has a synchronous reactance of 1.33 p.u. The generator achieves rated open circuit voltage at a field current of 325 A. The generator is connected to a network with an equivalent line-line voltage of 11 kV and an equivalent impedance of 0.17 pu on the generator base. The generator is loaded to a real power of 110 MW. a- Find the generated voltage Eaf in p.u. such that the...
A 3 phase 11 kv,25 mva, 60 Hz salient pole synchronous motor is running from a...
A 3 phase 11 kv,25 mva, 60 Hz salient pole synchronous motor is running from a 11 Kv, 60 Hz balanced three phase supply the meachince reactances are Xd=1.2 pu and Xq=0.6 pu ,neglect the meachanicalloss and armature copper loss the maximum power input is obtained with no field excitation determine the power factor of motor
4) A three-phase synchronous motor of 4000 hp nominal, 13,200 V, 60 Hz, 2 poles, connected...
4) A three-phase synchronous motor of 4000 hp nominal, 13,200 V, 60 Hz, 2 poles, connected in star, operating at 0.84 of power factor in advance, has an efficiency of 96.5%. The synchronous reactance per phase is 49.33 Ω: • Draw the phasor diagram on the grid sheet • Determine the loading angle • Determine the load torque
A 3-phase, Y-connected 4-wire system with grounded neutral carrying 60 A at 60 Hz per phase...
A 3-phase, Y-connected 4-wire system with grounded neutral carrying 60 A at 60 Hz per phase when balanced has 3rd harmonic current. The harmonic current is measured at 3 A/phase. a. For this system to remain without voltage distortion, what must be the current that the neutral carries to ground? (Easy answer.) b. The 3rd harmonic frequency is 180 Hz. If there is reactance XL = 2 Ω/phase in the line, what is the per phase capacitance (mF) of a...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT