1. Current Transformer (CT) A Current Transformer is an instrument transformer used to measure alternating current (AC) by stepping down high currents to a lower, measurable value. Key Functions: Current Measurement: Steps down high primary current (e.g., 1000A) to a standardized secondary current (e.g., 5A or 1A) for meters and relays. Isolation: Provides galvanic isolation be...
Active Harmonic Filters: The Smart Way to Fix Harmonic Distortion Harmonic distortion is one of those hidden issues that can quietly wreak havoc on your electrical system. It’s responsible for things like overheated transformers, motor failures, and unexpected equipment shutdowns. If your facility uses a lot of variable-speed drives or other nonlinear loads, chances are you’ve s...
In today’s increasingly digital and power-electronic-driven world, understanding power quality parameters is essential—especially for engineers, technicians, and facility managers. One such important metric is THDi, or Total Harmonic Distortion of current. But what exactly is THDi, and how does it occur in electrical systems? What is THDi? THDi stands for Total Harmonic D...
Power Quality: Why It Matters and How YT Electric Provides Solutions What Is Power Quality, and Why Should We Care? In 2001, a Silicon Valley manufacturing company lost over $3 million in a single day due to a power outage that halted production.¹ Today, nearly 20% of the world’s electricity is wasted due to inefficiencies in power transmission and distributio...
Active Harmonic Filters (AHFs) are widely used in buildings to mitigate harmonic distortion caused by non-linear loads, ensuring power quality, energy efficiency, and compliance with standards like IEEE 519 and IEC 61000-3-6. Here are key applications of AHFs in buildings: 1. Office Buildings & Commercial Complexes Loads: LED lighting, VFDs (HVAC systems), elevators, UPS systems...
The combination of a Static VAR Generator (SVG) and Thyristor-Switched Capacitor (TSC) creates a high-performance hybrid reactive power compensation system. This setup leverages the fast dynamic response of the SVG with the cost-effective bulk compensation capability of TSC. How SVG + TSC Works SVG (Static VAR Generator) Uses a voltage-source converter (VSC) with IGBT...
From data centers in Frankfurt to EV charging stations in Southeast Asia, Active Harmonic Filters (AHFs) are rapidly becoming the gold standard for solving one of the most overlooked yet costly problems in industrial power systems—harmonics. Modern electrical loads such as variable frequency drives, inverters, and switching power supplies generate non-linear current waveforms, resulting in h...
Why Capacitors Are the Preferred Choice for Reactive Power Compensation When it comes to low-voltage reactive power compensation, the conversation usually narrows down to two options: capacitor banks and Static Var Generators. Ask around, and you’ll likely hear one common reason why capacitors remain popular:“They’re cheaper.” That’s true—but the real answer goe...