internally fused capacitor bank

Internally Fused Capacitor Bank - Advanced Reactive Power Compensation Solution

Product Introduction

Looking for reliable reactive power compensation in your electrical system? Our internally fused capacitor bank offers the perfect solution for modern power distribution networks. This advanced high-voltage reactive power compensation assembly features individual capacitive elements connected in series with dedicated current-limiting fuses within hermetically sealed containers. Unlike traditional externally fused systems, our internally fused capacitor bank isolates only faulty elements when failures occur, allowing continuous operation with minimal capacity reduction.

Designed for 35kV and 110kV substations, this system provides automatic reactive power tracking compensation for 10kV, 6kV, and 3kV bus systems. You'll experience improved voltage quality, enhanced power factor correction, and reduced system downtime.

Technical Specifications

Main Features and Advantages

Superior Safety Design

Your safety is our priority. The internal fusing technology eliminates catastrophic case rupture risks by containing fault energy within individual elements.

Continuous Operation Capability

When element failures occur, your system stays online. The bank continues operating with slightly reduced capacitance, ensuring maximum uptime.

Compact Footprint

Space constraints solved. Our design eliminates bulky external fuse mounting structures, making it ideal for indoor and urban substations.

Intelligent Protection

Advanced neutral voltage unbalance protection detects failures immediately. You'll know exactly when maintenance is needed without system interruption.

High Reliability

With proper maintenance, expect over 20 years of service life. The internally fused capacitor bank outperforms traditional fuseless designs in high-voltage applications.

Practical Applications

HVDC Converter Stations & FACTS Systems

Perfect for SVC and STATCOM applications where grid stability is critical. Your system prevents nuisance tripping while maintaining voltage support.

Industrial Environments

Ideal for mining, oil & gas, and heavy manufacturing facilities. Motor starting applications and harmonic filtering benefit from the enclosed, safe design.

Offshore & Urban Substations

Space-critical installations like offshore wind farms and dense urban grids rely on our compact, rack-mountable solutions.

Power Quality Improvement

Manufacturing facilities use our systems for power factor correction, reducing utility penalties and improving energy efficiency.

How It Works

The internally fused capacitor bank operates through sophisticated element protection. Each capacitive winding connects to a dedicated current-limiting fuse within the sealed container. When dielectric breakdown occurs, only the affected element's fuse operates, isolating the fault immediately.

Your unbalance protection relays monitor neutral voltage shifts. As internal fuses operate, slight capacitance changes shift the neutral point, triggering protective alarms. This allows scheduled maintenance while maintaining system operation.

The remaining healthy elements continue providing reactive power compensation, ensuring your power factor and voltage support remain within acceptable ranges.

Manufacturing Excellence

Xi'an Xidian Medium and Low Voltage Electric Co., Ltd. brings decades of expertise to every unit. Our ISO9001, ISO14001, and OHSAS18001 certified facilities ensure consistent quality and environmental responsibility.

We utilize advanced film-foil technology with rigorous quality control. Every unit undergoes comprehensive testing including internal fuse disconnecting tests, sealing verification, and partial discharge measurement.

Our high-altitude capable products meet demanding environmental conditions while maintaining performance standards that exceed national and international requirements.

Why Choose Us

Proven Track Record

With over 100 product varieties across 34 series, we're your trusted partner for complete power distribution solutions.

Technical Innovation

Our participation in national 863 projects demonstrates our commitment to advancing electrical technology for your benefit.

Comprehensive Support

From initial design to long-term maintenance, our engineering team provides complete system solutions tailored to your specific requirements.

Quality Assurance

Every internally fused capacitor bank undergoes rigorous testing to ensure reliable performance in your critical applications.

FAQ

Q: Can I replace blown fuses in the unit?

A: No, the units are hermetically sealed. The advantage is continued operation with some blown fuses until replacement is scheduled.

Q: How do I detect failures if the bank stays online?

A: Neutral voltage unbalance protection detects capacitance changes as internal fuses operate, providing early warning systems.

Q: What safety advantages do you offer over external fusing?

A: Our design virtually eliminates case rupture risks, making indoor installations significantly safer.

Q: How long will my system last?

A: With proper harmonic mitigation, expect over 20 years of reliable service.

Q: Are there special disposal requirements?

A: Yes, we provide guidance for environmentally responsible disposal following local regulations for synthetic dielectric fluids.

Contact Us

Ready to improve your power system reliability and efficiency? Our technical experts are here to help you select the perfect solution for your application.

Email: serina@xaxd-electric.com

Contact us today for detailed specifications, custom configurations, and comprehensive system design support. Let's work together to optimize your reactive power compensation needs.