Wave-head Resistor & Wave Tail Resistor
Plate Type Wave Tail Resistors: High-Current Resistors for Impulse Generators (100kV-7200kV)
Plate type wave tail resistors (Rt) and wave-head resistors (Rh) serve critical functions in both impulse voltage generators (up to 7200kV) and high-current impulse systems (exceeding 200kA). These robust resistors provide precise waveform shaping for lightning and switching impulse tests.
Key Specifications
| Parameter | Capability |
|---|---|
| Voltage Range | 100kV - 7200kV |
| Current Capacity | Up to 200kA+ |
| Resistor Types | Wave-tail (Rt) / Wave-head (Rh) |
| Construction | Flat plate design (alternative to tube type) |
Design Advantages
High-Current Performance: Plate design handles extreme currents exceeding 200kA
Voltage Endurance: Suitable for ultra-high voltage applications up to 7200kV
Thermal Management: Large surface area for effective heat dissipation
Mechanical Stability: Robust construction withstands electromagnetic forces
Applications
Impulse Voltage Generators: Waveform shaping for 100kV-7200kV systems
High-Current Testing: 200kA+ impulse current applications
Lightning Impulse Tests: 1.2/50μs waveform formation
Switching Impulse Tests: 250/2500μs waveform control
Comparison: Plate vs. Tube Type
| Feature | Plate Type | Tube Type |
|---|---|---|
| Current Handling | Superior (200kA+) | Moderate |
| Voltage Range | 100kV-7200kV | Typically lower ranges |
| Cooling Efficiency | Excellent | Good |
Selection Guidelines
Determine maximum test voltage and current requirements
Choose between wave-head (Rh) or wave-tail (Rt) configuration
Consider space constraints in test setup
Verify compatibility with existing impulse generator
Maintenance Requirements
Regular inspection for surface degradation
Periodic resistance measurement
Cleaning of contact surfaces
Replacement after specified number of impulses
Conclusion
Plate type wave tail resistors offer unmatched performance for ultra-high voltage (7200kV) and extreme current (200kA) impulse testing applications. Their robust plate design provides superior current handling and thermal characteristics compared to traditional tube-type resistors, making them ideal for demanding high-power test scenarios.
