Answer / donaal saka

on doing harmonic analysis of any system ,we usually come across with odd harmonics due to unique symmetry of waveforms. The Amplitude of each harmonic component goes on decreasing as harmonic order increases .Since after fundamental we have third harmonic which will have appreciable amplitude and hence can affect system performance

Answer / xeeshan.raza

Harmonics is the sudden increase in the system voltage it
is caused by addition of unwanted frequencies to the
sinusiodal waveform of ac system . the odd multiple harmonics like 3rd 5th 7th are most dangerous

Answer / xeeshan raza

DISTURBANCE CAUSED IN THE SINUSOIDAL WAVE
FORM OF ALTERNATING CURRENT IS HARMONICS.

while starting a liquid starter ,is there any volage drop on water/soda on tank.can we touch the tank on starting?

0 Answers  

---

Give the two basic speed control of DC shunt motor.

4 Answers  

---

explain types of electric welding and its applications

0 Answers  

---

Is vtg is controlled by the resistor? if else how much?

0 Answers   Sail,

---

types of motors suitable for escalators with reason

2 Answers  

---

What is plc and how to do preventive maintenance

1 Answers  

---

how to calculate the cable size for LT and HT power cables with detail explanation?

2 Answers   Asset Developments, Bhel,

---

How much ph is maintained of water electrolyte which is used in LRS for 1200 kw slipring induction motor ?

0 Answers   AMS, JK Lakshmi Cement,

---

what is the total power generation in india?

0 Answers   GUVNL, HAL,

---

back emf of motor at the time of starting ?

2 Answers  

---

what is the difference between synchronization and paralleling?

13 Answers   BARC,

---

Regarding units, for voltage we are denoting Volts as V but in case of current we are not denoting Ampere as A instead as I..Why..? Any technical reason for this..?

1 Answers  

---