≤100kV Range
LQTT Series 15kV/75kVA AC High-Voltage Test Transformer
Precision Insulation Testing for Critical Power Assets
Overview
The LQTT 15kV/75kVA AC Test Transformer delivers stable high-voltage output for dielectric withstand tests on critical power infrastructure. Engineered for laboratories and field testing, it supports compliance with international standards (IEC 60270, IEC 60060) for components including:
Power cables & bushings
Gas-insulated switchgear (GIS)
Transformers & generators
Surge arresters & insulators
Available in insulated cylinder or metal tank configurations, it maintains voltage stability under variable loads—ideal for corona, pollution, wet tests, and inductive loads.
Key Technical Specifications
Parameter | Value |
---|---|
Rated Capacity | 75 kVA |
Input Voltage | 0–400 V |
Output Voltage | 15 kV |
Output Current | 5 A |
Frequency | 50 Hz |
Waveform Deviation | ≤3% |
Dielectric Loss | <0.5% |
Partial Discharge (PD) | <2 pC at 100% U<sub>H</sub> |
No-Load Current | ≤8% |
Noise Level | ≤60 dB |
Cooling Method | ONAN (Oil-Natural Air-Natural) |
Dimensions (L×W×H) | 800 × 800 × 950 mm |
Weight | 470 kg |
Critical Performance Features
Ultra-Low Partial Discharge
Certified <2 pC at full voltage for sensitive PD measurements.
Voltage Stability
Maintains output under dynamic loads (e.g., corona, inductive spikes).
High Safety Compliance
Low-voltage terminals withstand 5 kV/min to ground.
Measurement winding: 100V for secure monitoring.
Optimized Efficiency
Dielectric loss <0.5% minimizes energy waste.
Dual-Design Flexibility
Choose insulated cylinder (lightweight) or metal tank (robust EMI shielding).
Applications
AC Withstand Tests: Power cables, bushings, GIS.
Inductive Load Testing: Voltage transformers, reactors.
Environmental Simulation: Wet/pollution tests with stable voltage.
R&D & Quality Assurance: Component validation per IEC/ANSI.
Why Choose the LQTT 15kV/75kVA?
Reliability: ONAN cooling extends operational lifespan.
Precision: ≤3% waveform distortion ensures accurate diagnostics.
Safety: Full PD compliance for hazardous environments.
Global Standards: Compatible with test protocols for utilities, OEMs, and certification labs.
Technical Support & Customization
Contact our engineering team for:
Frequency adaptation (50/60 Hz)
Higher voltage/capacity configurations
Integrated test systems with control consoles