Importance of consistent supply of power


To ensure smooth production process and durability of equipments, consistent supply of power is inevitable. New Delhi-based Nagar Electronics & Instruments is playing major role in this regard providing state-of-the-art solutions. “In printing industry, huge amount is invested in establishing printing facilities equipped with cutting-edge technologies, but one of the most vital production aspects ‘power supply’ is generally not given due importance. However, some printers have already started to focus on it and reaping the advantages. We are committed to take care for this significant aspect by supplying efficient solutions to the printers’ community,” stated Vinay Nagar, managing director of the company in conversation with P&P. A technology driven-company with over two decades of experience in the field of power electronics equipments, Nagar Electronics & Instruments Pvt Ltd (NEI) was founded as a proprietorship, manufacturing precision electronics instruments during the year 1977 and later was incorporated in the year 1980 by Vinay Nagar, a technocrat, widely respected and an acknowledged pioneer in the industry, diversifying into power control & control toning equipment, commencing commercial production of Servo motor operated automatic line voltage corrector & auto variable transformers. In the year 1993, the company launched online UPS systems, developed using totally indigenous technology.

The success of the company is reflected in the large, varied & satisfied customer base, with over 50,000 combined product installations of Servo stabilizer, isolation transformer and on line UPS. The company’s clientele include: the Reliance group of companies, the Tata group of companies, ICICI Prudential Life Insurance, Reliance Insurance, Sumitomo Industries, Motherson group of companies, Canon India, Nestle India, Dabur India, the Birla group of companies, the Modi group of companies, ICICI Bank, IDBI Bank, Philips India, Dominos Pizza, Pizza Hut, Benaton India, etc. “Being an integrated power conditioning solutions provider of long standing and an unfailing reputation for quality, reliability, integrity, and customer satisfaction, we take immense pride in the faith our customers have imposed on us for over 25 years. We believe that satisfied customers enable us to achieve long-term profitability,” stated Vinay.

Incorporating contemporary production, quality control & management methodology, the company has set up a manufacturing facility at the Electronics Hardware Technology Park in Gurgaon, near Delhi. The plant houses a fully equipped research & development facility where engineers continuously endeavour to bring top-of-the-line, reliable and quality products. NEI also has technical collaboration with Textronic Digital Systems (TDS).

TDS microcontroller with multi mode monitor is the latest development in the field of power electronics for controlling bidirectional Servo motor for getting instant and accurate regulation through buck & boosting technology. Its controller section keeps the nominal output voltage within + 0.5 to one percent. Simultaneously, it also maintains high/low cut off temperature overload single phase preventer and short circuit protection. Front panel is also provided with set of press switches to set different electrical parameters which vanes with capacity of the stabilizer. While its display section measures and displays input voltage, output voltage, output current and chamber temperature. Password protection is also provided in the TDS microcontroller for safety of the equipment.

Designed to ensure that the mains voltage remains stable even if the incoming mains voltage drift is high or low, NEI voltage regulator/stabilizers are characterized by high efficiency and are completely unaffected by power factor, load and frequency variations. Available for outdoor/indoor use as per requirement, these regulators are suitable for supplying resistive, inductive or capacitive load. Neither radio interference nor additional harmonics occur within the permissible operation range.

NEI automatic Servo stabilizer operates on a closed loop control. The output voltage is measured and compared with a high-stable reference in an electronic control unit. Whenever the output /voltage deviates from the reference for more than one percent (standard), the servo drive is switched on until the output voltage has again reached the nominal value i.e 230 + 1 percent.

Generally, the received utility power is of very poor quality. Apart from black-outs and brown-outs, problems of high voltage spikes, surges and earth leakages are also present. It is mainly because of under rated transmission system, improper maintenance of associated switch gears, loose connections, sparking and dry earthing. There are certain applications which are termed as ‘sensitive’, such as CNC machines, computer controlled printing machines, and high capacity on line UPS. These sensitive loads contain semiconductor devices which are highly prone to get damaged due to the presence of aforesaid problems. With the use of isolation transformer, apart from providing isolation, all the aforesaid problems, riding over utility power are eliminated. Three phases isolation transformer with delta input and star output also provides artificial neutral. By connecting neutral of star winding with perfect created earth, it provides perfect artificial neutral with zero potential, irrespective of poor quality of input neutral.

“With high investment on production facilities and R&D, we advocate technology innovation and always put quality as our basic principles. NEI voltage regulators/stabilizers operate sometimes under extremely local and climatic conditions exact and reliable all over the country, with applications including: information technology; process control equipments (NC/CNC machines, etc); all electrical/electronic equipments; medical equipments; data processing equipments (computers); food processing industry; chemical plants, cement plants & textile units; air conditioning; communication and broadcasting equipments apart from printing and packaging industry,” concluded Vinay.

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