Capacitor bank overheating after adding VFDs is a power quality symptom, not a capacitor defect. VFD rectifiers inject harmonic current, the bank offers a low-impedance path at those frequencies, and parallel resonance between the bank and the supply can amplify that current until fuses open, contactors chatter and capacitor cans swell. A capacitor bank supplies reactive power to correct power fac...
Certificate Documentations in Power Quality Selection: Meaning and Guide A procurement engineer receives an Active Harmonic Filter quotation with a compliance certificate attached. The certificate names a product family, but the quotation specifies another voltage, current rating, enclosure layout, ambient condition, and feeder arrangement. The correct question is not “Does the suppli...
Dear Customers and Partners, As China’s National Day approaches, YT Electric would like to express our sincere appreciation to all customers, distributors and partners for your continued trust and support. Please be informed that our office will be closed for the China National Day Holiday from October 1 to October 7, 2026. During this period, responses to emails, technical inquiries and ord...