Power Quality Problem By the end of 2020, China railway operating mileage reached 146,000 kilometers, and the high-speed railway operating mileage reached 37,900 kilometers, ranking first in the world. High-speed rail traction transformers generally use 12 or 24 pulse rectification, which will generate 11th and 13th harmonics; power distribution transformer loads mainly include inverters, UPS...
The History Of Reactive Power Compensation If you are in the power industry, you must have heard of reactive power compensation. But you may not know much about it. What is reactive power compensation? We know that the power output of the power grid includes two parts: first, active power: directly consume electric energy, convert electric energy into mechanical energy, thermal energy,...
Power Quality Problems The automobile manufacturing industry is a typical heavy industrial industry, and its electricity demand has many characteristics, such as large electric energy demand, low power factor of electrical equipment, many typical nonlinear loads and impact load equipment, and high power quality requirements. Hazards and Influence In the traditional four major automobil...
YTPQC-AHF Active Harmonic Filter YTPQC-AHF Active Harmonic Filter is a perfect and comprehensive solution to the power quality issues of power grid, such as harmonics, reactive power and 3 phase load unbalance. YTPQC-AHF which is in parallel to power grid can detect the harmonic wave in power grid in time, generate the reverse-phase compensation current through the converter and dynamica...
Power Factor PF Measurement The control unit calculates: The power factor per phase PFL1, PFL2, PFL3, from the phase active and apparent powers. The total power factor PF from the total active power Ptotal and the total apparent power Stotal: PF = Ptotal / Stotal NOTE: Stot is the vector or arithmetic total apparent power, depending on the setting. This indicator qualifies:...
Power cabinet The complete power distribution device is a complete set of devices supplied by the manufacturer. According to the requirements of the main wiring, the manufacturer assembles the electrical equipment of each circuit, including control appliances, protection appliances, measuring appliances (such as circuit breakers, disconnectors, mutual inductors, etc.), bus bars, current carrying c...
Introduction To Capacitors And Reactors Reactance includes inductive reactance and capacitive reactance, and reactor includes inductive reactance (inductor) and capacitive reactance (capacitor). Inductance has the function of "blocking AC and blocking DC", that is, in the AC circuit, the characteristics of inductive reactance are used to "pass low-frequency DC and block high-frequency AC". The cap...
YTPQC-SVG/AHF Active Harmonic Filter and Static Var Generator Active Harmonic Filters(AHF) are new generation harmonic filters which use modern technologies and devices to provide revolutionary filtering solution.The Active filter is IGBT based harmonics generator. The active harmonic filter is connected in parallel to the load to be compensated. Static Var Generator(SVG) is IGBT (Integrated...
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IPv6 network supported
