High Voltage Surge Arresters | Overvoltage Protection Solutions
Ensure system safety with industrial-gradehigh voltage surge arresters, engineered to protect critical infrastructure from lightning strikes, switching surges, and transient voltages. Compliant withIEC 60099, ANSI/IEEE C62.11,andUL 1449 standards.
Key Features & Applications
Polymer-housed & porcelain arrestersfor indoor/outdoor installations.
Voltage ratings:1kV to 500kVwith customizable energy absorption.
Critical forsubstation protection, transmission lines,andtelecom base stations.
Advancedtransient voltage suppressiontechnology.
Why Choose Our Surge Arresters?
25+ Yearsof surge protection expertise.
Third-party tested(impulse, thermal, aging).
Certifications:CE, IECEx, ATEXfor hazardous zones.
24/7 support withinstallation guides.
Surge Arrester Specifications & Selection
Critical Parameters Explained
Ahigh voltage surge arrester's performance hinges on:
- Nominal Discharge Current (In):Ranges from 10kA to 40kA, dictating capacity to handlelightning strikesandswitching surges.
- Continuous Operating Voltage (Uc):Must exceed system voltage by 20% (e.g., 30kV arrester for 24kV grids).
Polymer vs. Porcelain Arresters
| Feature | Polymer | Porcelain |
|---|---|---|
| Weight | 50% lighter | High structural load |
| Explosion Risk | Zero (safe for urban substations) | Potential fragmentation |
High Voltage Surge Arresters Buyer's Guide: Selection, Standards & Technical Insights
Choosing the righthigh voltage surge arrestersis critical to protect electrical systems from lightning strikes, switching surges, and transient overvoltages. This guide integratesIEC 60099-4,ANSI/IEEE C62.11standards, and manufacturer expertise (ABB, Hitachi Energy) to simplify your selection process.
Core Technical Parameters for Surge Arrester Selection
- Maximum System Voltage (Um): Determines arrester compatibility with grid voltage levels (e.g., 123kV, 550kV).
- Nominal Discharge Current (In): Ranges from 10kA to 40kA, defining surge current handling capacity.
- Rated Voltage (Ur): Must exceed temporary overvoltages (TOV) like earth faults or load rejection.
- Protection Level (Up): Residual voltage during discharge, critical for insulation coordination.
Polymer vs. Porcelain Arresters: Key Differences
Industry Applications & Performance Validation
Offshore Wind Farm ProtectionPEXLIM polymer arrestersreduced turbine downtime by 92% in North Sea installations, withstanding salt spray and 100kA lightning currents
HVDC Transmission Line ProtectionCustom DC arresters achieved 98% surge interception in ±500kV projects, certified byKEMA LabsandCIGRE TB 584.
Certifications & Testing Protocols
- IEC 60099-4 Ed.3.0: Station-class arresters with 8kJ/kV thermal energy rating.
- ANSI/IEEE C62.11: Validated for 20kA discharge capacity and 65kA short-circuit currents.
- DNV GL & ATEX: Certified for marine and hazardous environments.
Download the fullHigh Voltage Surge Arresters Buyer's Guide PDFwith comparison tables, orconsult our engineersfor system-specific solutions.
