NSP2025 Over-voltage Electric Fast Protection Device

Engineered to address critical gaps in resonant test system protection, the NSP2025 delivers industry-leading <100μs response times during discharge events. This advanced protector combines thyristor-based voltage clamping with optical fiber isolation to safeguard both test objects and equipment during breakdown scenarios.

Technical Specifications

Protection Mechanism

1. Multi-Stage Voltage Collapse

• Stage 1 (1ms): Fast breaker reduces voltage to 50%

• Stage 2 (10ms): Thyristor dumps residual energy

• Stage 3 (200ms+): Complete system isolation

2. Advanced Arc Suppression

• Magnetic field energy absorption prevents restrikes

• Optically triggered thyristor bypass

• Test object damage prevention

3. Intelligent Detection System

• Real-time voltage/current monitoring

• Adjustable sensitivity (10-100% range)

• Optical fiber noise immunity (50kV/mm isolation)

System Architecture

Five Functional Modules

1. Detection Circuit: High-speed analog sensors

2. Logic Judgement: DSP-based event processing

3. Trigger Circuit: 20kV/μs rise time

4. Thyristor Array: 2.5kA surge capacity

5. Preset Protection: User-configurable thresholds

All modules interconnected via optical fiber

Operational Benefits

• Equipment Protection: Limits over-voltage to 110% of nominal

• Test Continuity: Minimizes downtime between tests

• Safety Compliance: Meets IEC 61000-4-5 surge standards

• System Longevity: Reduces transformer stress

Typical Applications

• Resonant test systems for XLPE cables

• Power transformer impulse testing

• High-voltage capacitor banks

• Research lab breakdown experiments

Installation & Usage

Standard Configuration

• Integrated within test console

• 15min continuous operation (extended cycles available)

• Ambient temperature: -25°C to +55°C

Safety Notes

• Optical connectors require periodic inspection

• Annual thyristor stack testing recommended