AMBIK HARMONIC FILTERS PVT LTD was started in the year 1998, by Mr.Prasad Padhye Mr. Sanjeer Bhonsarkar who were business associates earlier.The workshop is set up in Pune.
Ambik Harmonic is looking forward to expanding the business by not just limiting it to pune but taking it globally where the directors are showing keen interest.
Power Quality:
The subject of Power Quality has achieved considerable attention over the past few years. The widespread use of power electronic devices to provide more precise control of electrical power has brought about an increase in the distortion of voltage and current waveforms in many plants. Broadly defined, power quality refers to the degree in which voltages and currents in a system represent sinusoidal waveforms. “Clean” power refers to voltage and current waveforms that represent pure sine waves and are free of any distortion. “Dirty” power refers to voltage and current waveforms that are distorted and do not represent pure sine waves.
DETRIMENTAL EFFECTS OF HARMONICS
Today, the proliferation of non-linear loads within many buildings and industrial units has led to excessive harmonic currents on power distribution networks. The most common problems caused by excessive harmonics are overheating of neutral conductors and electrical distribution transformers, and the malfunctioning of electronic equipment. Harmonic voltages and currents can cause interference effects that are detrimental to electronic equipment not designed to operate in the presence of significant harmonics. Modern power electronic equipment draws current in repetitive pulses from the AC power line.
Other electronic equipment on the same distribution system may be disturbed by the consequent pulsations of voltage in the supply line. For example, a computer “glitch” may occur during a rising or dropping voltage pulse, and could result in data loss, data corruption, processing interruption or brown-out.
In addition, electromagnetic fields associated with the harmonic currents can interfere with telephone and other communication systems. Harmonic voltage effects are of particular concern in applications where emergency generators are used to maintain services during utility power outages, such as in hospitals, computer centers, universities, and industrial processing plants. Emergency generators have impedance three or more times the impedance presented by conventional utility sources. Thus, for the same harmonic current, the harmonic voltage is three or more times larger and there is a much greater potential for operating problems. In addition, generator capacity is affected by the amount of harmonic current. In severe harmonic environments, emergency UPS generators have difficulty in recognizing the high harmonic waveforms, and in many cases.
