Answer / jawwad siddique

A surge capacitor is used to mitigate (minimize) voltage
surges. Capacitor impedance can be modeled as 1/jwC, j = i =
imaginary value used in vectors, w is the frequency, and C
is the capacitance. A fairly small capacitor on the input to
a power supplying circuit will have a large impedance, and
so will impact the circuit operation very little due to the
low power frequency. Surges are high frequency. When a surge
occurs, the capacitor impedance appears much smaller to the
high frequency surge, effectively shunting the surge energy
to ground; this minimizes the surge with respect to the
protected circuitry.

SUTIABLE FOR ohm's law super conductor

0 Answers  

---

1 unit or 1 kwh means how much kva

7 Answers   TATA,

---

What is the basis for framing the rules of block diagram reduction technique?

0 Answers  

---

which protection are used for turbo generator in thermal power plant.

1 Answers   Grasim,

---

CAN 50Hz transformer work at 60 Hz power supply? if yes how it is possible?

2 Answers  

---

whis is the formula of converting KW into HP ?

14 Answers  

---

What are the transformer losses?

0 Answers  

---

what is total power generation in tamilnadu What are the methods used powerfactor improved? which place DC transmission line usde?

5 Answers  

---

What is the difference between split AC and Casste AC?

2 Answers   NTPC,

---

6. A DC AMMETER HAS R=0.1 OHM & CURRENT RANGE IS 0-100 A IF THE RANGE IS TO BE EXTENDED TO 0-500 A THEN METER REQUIRES SHUNT RESISTANCE OF ..........

2 Answers   SSC,

---

what is the difference between earth leakage and earth fault?

0 Answers   L&T,

---

Can you explain about pole discrepancy scheme

0 Answers   NCC,

---