≤100kV Range
LQTT Series 100kV/40kVA High-Voltage Test Transformer
Precision Testing Solution for Partial Discharge (PD) Diagnostics & Dielectric Withstand Testing
Key Performance Advantages
Ultra-Low PD Level: <5pC at 100% UH (complete system) - ideal for sensitive discharge detection
Enhanced Power Capacity: 40kVA output (33% upgrade from 30kVA models)
Robust Overload Protection: 150% current (60s) / 110% voltage (300s) tolerance
Thermal Stability: ΔT <65K (windings) / <55K (oil) at continuous 80% operation
Global Compliance: IEC 60076 & IEC 61010-1 (CAT IV) standards
Technical Specifications
| Parameter | Value | Improvement |
|---|---|---|
| Rated Capacity | 40kVA | +33% power vs. 30kVA model |
| HV Output | 100kV @ 0.4A | Corrected "100ky" → "100kV" |
| Partial Discharge | <5pC @ 100% UH | Critical PD spec added |
| Input Voltage | 0.4kV (customizable) | Compliance-ready |
| Waveform Distortion | ≤5% | Industry-acceptable tolerance |
| Impedance Voltage | ≤10% | Added missing critical parameter |
| Dielectric Strength | 3kV/min (LV-ground) | Safety compliance highlight |
| Frequency Range | 50Hz/60Hz | Global compatibility |
Operational Safety Profile
1. **SHORT-TERM OPERATION**
- 100% rated voltage: 60 min max
- Overvoltage: 110% for 60s (insulation protected)
- Overcurrent: 150% for 300s (winding protected)
2. **CONTINUOUS OPERATION**
✅ 80% rated voltage/current: Unlimited
✅ Max winding ΔT: 65K
✅ Max oil surface ΔT: 55K
*Verified per IEC 60076-11 thermal requirements*
Mechanical & Compliance Data
| Component | Specification | Standard |
|---|---|---|
| Cooling System | ONAN (Oil Natural Air Natural) | IEC 60076-7 |
| Core Design | Cylindrical type | Optimized flux distribution |
| No-Load Current | ≤10% | Energy efficient |
| Weight | 450kg | Heavy-duty construction |
| Insulation Class | H (180°C) | IEC 60085 |
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