A new device for improving the quality of distribution feeder power to digital computer and other voltage sensitive loads
A new power conditioning device is described for improving the quality of distribution feeder power supplied to large digital computer loads. The improved quality results from the synthesis of three-phase 60 Hz voltage waveforms which remain essentially constant in magnitude and shape over a large range of input voltage excursions in both the positive direction (surges) and the negative direction (sags). The device consists solely of saturable iron core reactors and transformers, together with capacitors, and employs the principles of ferroresonance for its operation. Design considerations and performance tests are presented. The field experience from an application of the device at the New England Power Service Company (NEPSCO), a subsidiary of The New England Electric System (NEES), is discussed, and it is shown how the device significantly improved the availability of a large computer system used in a real-time customer information system.
- Research Organization:
- New England Power Service Co., 25 Research Dr., Westborough, MA 01581
- OSTI ID:
- 5970920
- Journal Information:
- IEEE Trans. Power Appar. Syst.; (United States), Vol. PAS-101:8
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
POWER CONDITIONING CIRCUITS
DESIGN
PERFORMANCE TESTING
POWER DISTRIBUTION
CAPACITORS
DIGITAL COMPUTERS
ELECTRIC POTENTIAL
REACTORS
SURGES
TRANSFORMERS
COMPUTERS
ELECTRICAL EQUIPMENT
ELECTRONIC CIRCUITS
EQUIPMENT
TESTING
200300* - Electric Power Engineering- Power Transmission & Distribution- (-1989)