LiTong
🔋 Energy Storage Solution

Battery Energy Storage System Protection

Complete DC Side Protection for BESS Applications

🏭 Grid-Scale Systems⚡ High Voltage DC Protection🔒 Extreme Breaking Capacity📋 Customized BOM
🔋
BESS Protection

Solution Overview

Large-scale Battery Energy Storage Systems present significant circuit protection challenges due to high DC voltages and massive short-circuit current potential. This comprehensive solution provides coordinated protection for battery racks and DC combiners using Sinofuse fuses with extreme breaking capacity.

Protection Architecture

🔋

Battery Rack Level

Individual rack protection with cycling-optimized fuses

📦

DC Combiner Protection

Main combiner box with ultra-high breaking capacity

🔄

PCS Interface

Power conversion system interface protection

⚙️

Auxiliary Systems

HVAC, monitoring, and control circuit protection

System Specifications

ApplicationGrid-Scale Energy Storage
System Voltage1000V - 1500V DC
Current Range100A - 1000A
Breaking CapacityUp to 200kA @ 1000V DC
Cycling Performance10,000+ Cycles
Operating Temperature-40°C to +70°C
StandardsIEC 60269, UL 248
Customization✅ Available
Complete Solution Available

BESS Protection Architecture

🏭 Battery Energy Storage System DC Protection

🔋Battery Racks
🛡️RS309 Rack Fuses
📦RS308 Main Fuse
🔄PCS/Inverter

Multi-level protection architecture for maximum safety and availability

Recommended Bill of Materials

This BOM provides comprehensive protection for containerized BESS applications. Our energy storage specialists can customize ratings and quantities based on your specific system architecture and fault current analysis.

Protection LevelRecommended PartSpecificationsKey FeaturesAvailability
Battery Rack ProtectionRS309-Mf-H Series250A-630A, 1000V DC, 50kACycling optimized, Low I²t lossesIn Stock
Main DC CombinerRS308-H Series800A-1000A, 1500V DC, 200kAUltra-high breaking capacityIn Stock
String ProtectionRS309-F Series100A-200A, 1000V DC, 50kAFast-acting for sensitive loadsIn Stock
Auxiliary CircuitsRT16-00 Series6A-63A, 500V DCDIN rail mounting, CompactIn Stock

Solution Advantages

Performance & Safety

  • Extreme breaking capacity up to 200kA @ 1000V DC
  • Low I²t losses minimize heat generation
  • Excellent DC arc extinction performance
  • Coordinated protection prevents cascading failures
🔄

Reliability & Lifecycle

  • Designed for 10,000+ charge/discharge cycles
  • Minimal aging and drift characteristics
  • Proven in utility-scale installations
  • 25+ year design life for ROI optimization

Application Examples

🏭

Utility-Scale BESS

Grid-connected energy storage for frequency regulation and peak shaving applications.

Capacity: 10-100 MWhVoltage: 1000-1500V DC
🏢

Commercial ESS

Behind-the-meter storage for demand charge reduction and backup power applications.

Capacity: 1-10 MWhVoltage: 800-1000V DC

Microgrid Storage

Island mode capable systems for critical infrastructure and remote applications.

Capacity: 0.5-5 MWhVoltage: 600-1000V DC

Engineering Support

🛠️ Expert Consultation

👨‍🔬

Energy Storage FAE Team

Specialized engineers with BESS and grid storage expertise

Consult ESS Specialists
🔬

Custom Protection Study

Fault current analysis and coordination study services

Request Study

Related Energy Solutions

Ready to Protect Your Energy Storage System?

Get expert consultation and customized protection solution for your BESS application