Technical Innovation Spotlight

The LQTT 150kV/75kVA redefines flexibility in high-voltage testing with dual-operation capability. Its modular design enables instant reconfiguration between series (150kV/0.5A) and parallel (75kV/1A) modes – ideal for multi-standard labs and field testing teams.

Core Specifications

Performance Validation

1. Operational Resilience

• 100% Rated Stress: 60 min operation at 150kV + 0.5A (series) or 75kV + 1A (parallel)

• Continuous Duty: Unlimited operation at 120kV/0.4A (series) or 60kV/0.8A (parallel)

• Thermal Limits:

• Winding ΔT ≤ 65 K (vs. ambient)

• Oil Surface ΔT ≤ 55 K

2. Precision Engineering

• Ultra-Low PD: <2 pC at full voltage – exceeds IEC 60270 Type 2 requirements

• Pure Waveform: ≤5% THD ensures accurate harmonics measurement

• Low Impedance: ≤10% for stable output under load

Why Modular Design Matters

1. Test Flexibility

• Series: GIS/transformer withstand testing (150kV)

• Parallel: Cable/breaker current-driven tests (1A)

2. Transport Optimization

• 400kg modules fit standard elevators/lifts

• On-site assembly without cranes

3. Redundancy

• Single-module operation possible at 75kV/0.5A

Compliance & Safety

• Dielectric Tests: IEC 60060-1/-2

• Safety Standards: IEC 61010-1, IEC 61010-2-201

• Environmental: IP54 enclosures (confirm)

• Protections:

• Overcurrent trip at 110% rated current

• Oil temperature cut-off at 70°C

Configuration Scenarios

Technical Notes

ONAN Cooling: Zero maintenance, silent operation – ideal for lab environments
60Hz Optimization: Engineered for North American/Latin American markets
PD Superiority: <2pC enables detection of microscopic insulation defects

CTAs

▸ Download Dual-Configuration Guide (PDF)
▸ Request Modular System Demo
▸ Compare LQTT vs Conventional Transformers