What is Control Gear?
Why Should I Improve My Power Factor?
What is Importance of power factor in distribution systems?
How many key components are there in Ballast circuit?
What Causes Low Power Factor?
What is the Power Factor ?
What is Power Factor Correction?
It is often desirable to adjust the power factor of a system to near 1.0. This power factor correction (PFC) is achieved by switching in or out banks of inductors or capacitors. For example the inductive effect of motor loads may be offset by locally connected capacitors. When reactive elements supply or absorb reactive power near the load, the apparent power is reduced.
How do we measure Power Factor ?
What is the THD ?
THD is defined as the RMS value of the waveform remaining when the fundamental
is removed. A perfect sine wave is 100%, the fundamental is the system frequency of 50 or 60Hz. Harmonic distortion is caused by the introduction of waveforms at
frequencies in multiplies of the fundamental ie: 3rd harmonic is 3x the fundamental
frequency / 150Hz. Total harmonic distortion is a measurement of the sum value of
the waveform that is distorted.
What are the Problems High THD can cause ?
What is Crest Factor ?
What are important Characteristics of Ballst ?
What is Ballast Factor?
The Ratio of Ballast output power to Ballst input Power is the Ballast Factor .
What is importance of Ballast Out Put Current ?
All Tubes are rated to work most efficiently at certain Ballst Out Put Current or Tube Input Current. Current less than Rated current or more than Rated current ( Within the specified Tolerance range) will affect the life of Tube. Different tubes like T5, T4 , PLC or PLL have different rated currents .It is very important that ballast is well matched with the Tube Current Rating . We have notice even T5 tubes from different Brands differ in current ratings thus making Ballast design suitable for one Brand become unsuitable for other Make.