文档介绍：loads, it became apparent that a rewrite of IEEE 519,
Meeting IEEE 519- treating the relationship of harmonic voltages to the
harmonic currents flowing within industrial plants, was
necessary to support control of harmonic voltages.
1992 Harmonic Limits The new IEEE 519, published in 1992, sets forth limits
for both harmonic voltages on the utility transmission
® and distribution system and harmonic currents within
Using HarmonicGuard the industrial distribution systems. Since harmonic
voltages are generated by the passage of harmonic
Passive Filters currents through distribution system impedances, by
controlling the currents or system impedances within
Written By: the industrial facility, one can control harmonic
voltages on the utility distribution.
John F. Hibbard
Unfortunately, there is some user confusion regarding
Michael Z. Lowenstein the application and intent of the information included in
IEEE 519, 1992. Section 10, “mended
Practices for Individual Consumers” describes the
Abstract current distortion limits that apply within the industrial
plant. Consulting engineers and applications
With the advent of IEEE 519-92, the increasing
engineers may not be clear as to the proper use of
demand by utilities for power factor improvement, and
Table , which outlines the limits of harmonic
the proliferation of non-linear loads in industrial power
distortion as a function of the nature of the electrical
distribution systems, specification of harmonic
distribution system.
mitigation has mon. Questions arise
regarding the performance of passive harmonic trap This paper will explain, with examples, the proper use
filters in removing harmonic distortion. and interpretation of this table. Using puter
® model, we have outlined the level of distortion one
Data from a number of TCI HarmonicGuard trap filter
might expect to encounter for various types of loads
installations have been collected which illustrate how
and di