Answer Posted / chreamz

Basic Electrical Engineering

First Step: Calculate the Capacitance of the system
>> Frequency = 50 or 60 Hz

>> Xc = 1/ (2πfC)
= 1/ (2π*50*82µ)
= 1 / (2*3.141*50*82µ)
= 25.76 Ω

Final Step: Ohms Law

>> V = IXc
1100 = I*25.76

∴I = 42.702 Amps

How to select circuit breakers rating eg. if i select a circuit breakers of capacity 40 amps DC with operating voltage 28 volts and if i what to use same circuit breakers for 300 Volts DC application what is the current rating of this circuit breakers.

1716

---

is it possible to say motor horsepower number without seeing name plate(when name plate damaged)

2078

---

what is the difference between pvc & fiber glass cables

1545

---

I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?

2112

---

working function importance of mdc meter

2157

---

Draw the wave shape of armature current in a generator subjected to a sudden three phase short- circuit at its terminals. Define various reactance of generator from this wave shape.

2208

---

how to calculate the earth mat design in 132 kv substation yard ????

6235

---

Could u pls tell me the NPCIL electrical engineering interview questions for Executive trainee, and also guide me how to face the interview.

4477

---

pre arcing time of ehv breaker

2123

---

What is pole of the system?

1133

---

I want d.g.set our company

1869

---

ratings of lightning arrester

2041

---

IF % IMPEDANCE OF A TRANSFORMER IS INCREASED FROM 5.8% TO 8% HOW MUCH THE EFFICIENCY OF THE TRANSFORMER WILL COME DOWN?

2366

---

what is the relation between size of the anteena and wavelenghth of radiated wave

2169

---

can i use the six sigma method which is used in management area, in state estimation of power systems?

1858

---