KR-3510 Intelligent Secondary Harmonic Elimination Device

Introduction to KR series intelligent secondary harmonic elimination device KR series intelligent secondary harmonic elimination device applies microcomputer technology to power grid harmonic elimination, utilizing the fast and accurate data processing capability of computers to achieve Fourier analysis, and its frequency selection is accurate

KRIntroduction to the series of intelligent secondary harmonic elimination devices

The KR series intelligent two harmonic elimination device applies microcomputer technology to power grid harmonic elimination, utilizing the fast and accurate data processing capabilities of computers to achieve Fourier analysis with accurate frequency selection. By collecting PT three-phase voltage and open delta voltage, various frequency components during grid resonance can be quickly analyzed, accurately identifying single-phase grounding, transition process, and grid resonance. If it is resonance, according to different frequencies, the computer sends different instructions to activate different harmonic elimination circuits, achieving fast harmonic elimination. Through actual operation, it has been proven that this device accurately judges continuous 0~300Hz resonance and acts quickly. The harmonic elimination component adopts the principle of constant current to improve the reliability of harmonic elimination and solve the resonance problem of the power grid in the power system more comprehensively. And it can store and record the number and frequency of resonances. If the system is grounded, an alarm will be triggered. It can be widely applied to the power systems of power plants, substations, and large factories and mines such as steel, coal, and petrochemicals.

Main functions

●The resonance of 0-300Hz can be accurately determined, and the constant current harmonic elimination element can be quickly put into operation

●Measure and display various parameters of voltage transformers (three-phase voltage, zero sequence voltage)

●Accurately record various parameters under abnormal conditions (three-phase voltage, zero sequence voltage)

●Accurate judgment and alarm of various abnormal states of voltage transformers (overvoltage, grounding, low voltage, PT disconnection, resonance) can be selected through signal output contacts

●Abnormal power output signal contact

●Various resonance and voltage transformer abnormal parameters can be adjusted on site

●Equipped with voltage transformer protection and measurement function

●Equipped with backend timing function

KR-3510Wiring schematic diagram of intelligent secondary harmonic elimination device