Power Quality Solutions
The Gold Standard of Precision: Eliminating Voltage Flaws Instantly
Overview
In high-end manufacturing and precision industries, even a 10% voltage sag lasting less than 100 milliseconds can trigger a total production line shutdown, costing millions in lost time and damaged materials. STC’s Power Quality Solutions, powered by supercapacitors, act as a high-speed sentinel. By providing instantaneous reactive power compensation and voltage support, we ensure that your most sensitive equipment receives "clean," stable, and continuous power, regardless of external grid disturbances.
Core Applications
Supercapacitor SVG (Static Var Generator)
Traditional SVG systems often lack the instantaneous "punch" needed for extreme load shifts. By integrating STC supercapacitors, our SVG solutions provide ultra-fast reactive power injection, maintaining a power factor near 1.0 and eliminating grid penalties and harmonic distortions.
DVR (Dynamic Voltage Restorer)
As the most effective solution for voltage sags, STC-powered DVRs detect grid anomalies in milliseconds. The supercapacitors immediately inject the exact amount of missing voltage into the line, ensuring the sensitive load (such as semiconductor lithography or high-speed CNC) never perceives a flicker.
Flicker & Sag Mitigation
In industries with massive inductive loads (like arc furnaces or heavy welding), STC supercapacitors buffer the violent "surges" that cause local grid flickering, protecting both the facility and the neighboring infrastructure.
The STC AHSC Technical Edge
Features
High Power & High Energy
High C-Rate Discharge
Millisecond Response
100,000+ Cycle Life
Benefit for Smart Grids
Delivers the high-current burst required to restore full-line voltage in a fraction of a second, outperforming any chemical battery.
Capable of 10C+ discharge rates to combat deep voltage sags without system fatigue.
Detects and corrects voltage anomalies in <2ms, faster than the blink of an eye, ensuring zero-interruption for precision chips.
Perfect for "noisy" grids where voltage sags occur multiple times a day; our modules handle frequent cycling for 20 years.
Call to Action
Ensure 99.9999% Power Reliability Protect your precision assets from the hidden costs of poor power quality. Let STC’s engineering team audit your facility and design the ultimate voltage defense system.
Typical Project Scenario
STC DVR System Ensures Zero-Downtime at a Major Refining Facility
Project Overview: Millisecond Protection for Petrochemical Giants
For a large-scale petrochemical enterprise in East China, production continuity is the lifeblood of the facility. Within the Catalytic Cracking Unit (CCU)—the heart of the refinery—even a momentary "voltage sag" can cause critical pumps to trip.
A single unplanned shutdown in this sector can lead to catastrophic risks, including reactor instability, material leakage, and financial losses exceeding millions of dollars per hour. Previously, the facility relied on traditional UPS systems, but with response times exceeding 10ms, they were too slow to prevent motor contactors from tripping during rapid grid disturbances caused by lightning strikes or heavy machinery operation nearby.
The Technology: The BW-DVR Dynamic Voltage Restorer
THeBW-DVR (Dynamic Voltage Restorer) system solve this high-stakes challenge, specifically customized for the refinery’s critical pump groups.
At the core of the BW-DVR is Supercapacitor technology. Utilizing electrostatic energy storage, the system achieves an industry-leading response time of less than 2ms—three times faster than traditional lithium-battery-based DVRs. This allows the system to detect and compensate for voltage anomalies within the very first wave cycle of the disturbance.
Technical Performance & Resilience
Full-Voltage Injection: Even if grid voltage drops to zero, the STC supercapacitors instantly discharge to inject 100% rated voltage into the load.
Customized Endurance: Designed with a 5-second backup duration, specifically tailored to bridge the typical "low-voltage ride-through" period for industrial pumps.
Environmental Hardiness: With an operating range of -25°C to 45°C, the system is perfectly suited for the high-temperature and dust-heavy environments of petrochemical plants.
Ultra-High Efficiency: Operates at 99.2% efficiency with zero harmonic injection, ensuring no "pollution" to the plant's internal power grid.
Proven Results: Millions in Losses Averted
During a six-month pilot phase, the BW-DVR system successfully defended the facility against 12 major grid disturbances.
Zero Downtime: Critical equipment, including circulation and feed pumps, maintained 100% operation.
Economic Impact: Averted over $1.5 million (USD equivalent) in potential direct economic losses.
Maintenance-Free: With a cycle life exceeding 100,000 cycles, the maintenance cost over the system's lifecycle is nearly zero, far lower than chemical battery alternatives.
Client Testimonial
"Since the commissioning of the BW-DVR, we haven't had a single production interruption due to voltage sags. Our equipment stability has improved to 99.8%," stated the facility's Head of Operations.
This project sets a new benchmark for Voltage Sag Mitigation in the high-risk chemical and metallurgical sectors, proving that STC’s supercapacitor technology is the ultimate insurance for continuous industrial production.