Technical Specifications

Thermal Management System

Advanced Cooling Design

• Helical aluminum fins (12mm pitch)

• Vertical airflow channels

• Black anodized surface (ε=0.85 emissivity)

Temperature Performance

• 100K max rise at 2.55kW load

• Thermal time constant: 18 minutes

• Ambient range: -30°C to +50°C

Thermal Validation: Tested per IEEE C57.131 with IR thermography

Electrical Performance

Mechanical Design

Dimensions & Construction

• Cylindrical form factor

• Stainless steel core

• Aluminum oxide coated surface

Terminal System

• Top: Corona shield (Ø500mm)

• Base: M20 flange terminals

• Torque spec: 40Nm ±5%

Primary Applications

High Power Laboratories

Critical component in 350kV impulse generators (0.84/2100μs switching surge)

Transformer Testing

Damping for resonant frequency tests on 500MVA+ transformers

HVDC Systems

Surge protection in ±350kV converter stations and VSC installations

Installation Protocol

1. Maintain 2.45m clearance (7mm/kV × 350kV) to earthed surfaces

2. Mount on insulated pedestal (≥200kV rating)

3. Apply UV-resistant silicone grease to terminals

4. Ground connection: ≥25mm² copper cable to

   <5ω earth="">

5. Verify vertical alignment with

   <1° deviation="">

Safety & Compliance

• Dielectric test: 420kV AC for 1min (20% overvoltage)

• Short-circuit withstand: 12kA peak/80ms

• Arc-flash protection: Grade 2 containment

• Environmental rating: IP54 (indoor/outdoor)

• Seismic rating: IEC 60068-3-3 Class 1

Operational Limits