<30kVA Range
Technical Specifications
| Parameter | Value | Engineering Advantage |
|---|---|---|
| Rated Capacity | 7 kVA | High-power industrial regulation |
| Input Voltage | 0.38 kV (380V) | 3-phase network ready |
| Output Voltage | 0-0.42 kV (0-420V) | Covers 400V equipment +5% margin |
| Output Current | 0-16.6 A | Precision control for heavy loads |
| Waveform Distortion | ≤3% | Critical for instrumentation accuracy |
| Thermal Rise | Winding: ≤65K Oil: ≤55K | Superior cooling design |
| Duty Cycle | 60 min @ 100% rating Unlimited @ 80% rating | Mission-critical operation |
| Short-Circuit Withstand | 2× current (33.2A) 8 cycles (160ms) | Prevents catastrophic failure |
| Weight | 20 kg | Industrial-grade construction |
Key Features
1. Industrial Power Range
420V Output: Tests 400V equipment at tolerance limits
16.6A Continuous: Powers motors/transformers during burn-in
2. Advanced Thermal Management
≤65K Winding Rise: 15% lower than industry average
≤55K Oil Rise: Optimized cooling for sustained operation
3. Contact-Type Reliability
Manual brush adjustment for precise voltage control
Position Limit Switches: Prevent mechanical overtravel
4. Fault Protection
33.2A Surge Withstand (2× rated current)
Damping Resistor: Absorbs capacitive discharge energy
Safety & Design
Reinforced Windings: Withstand thermal stress at 100% load
Oil-Cooled Construction: Stable operation in ambient ≤40°C
Short-Circuit Certified: No deformation during 160ms faults
Applications
Motor Testing: 400V industrial motor commissioning
Protective Relay Calibration: Voltage tolerance testing
R&D Stress Testing: Power supply failure simulations
Related PRODUCTS
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LQDZ 30kVA |400V Input | 0-420V Adjustable Output |Manual Contact Voltage Regulator| ≤3% THD | Short-Circuit Protected
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LQDZ 25kVA|400 Input | 0-420V Adjustable Output | Manual Contact Voltage Regulator| ≤3% THD | Short-Circuit Protected
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LQDZ 30kVA |220 Input | 0-250V Adjustable Output |Manual Contact Voltage Regulator| ≤3% THD | Short-Circuit Protected
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LQDZ 20kVA|440 Input | 0-420V Adjustable Output | Manual Contact Voltage Regulator| ≤3% THD | Short-Circuit Protected
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LQDZ 20kVA |380 Input | 0-420V Adjustable Output |Manual Contact Voltage Regulator| ≤3% THD | Short-Circuit Protected
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LQDZ 16kVA|415 Input | 0-420V Adjustable Output | Manual Contact Voltage Regulator| ≤3% THD | Short-Circuit Protected
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LQDZ 15kVA |380 Input | 0-420V Adjustable Output |Manual Contact Voltage Regulator| ≤3% THD | Short-Circuit Protected
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LQDZ 15kVA|400 Input | 0-420V Adjustable Output |Manual Contact Voltage Regulator| ≤3% THD | Short-Circuit Protected
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LQDZ 12kVA |380 input | 0-420V Adjustable Output |Manual Contact Voltage Regulator| ≤3% THD | Short-Circuit Protected