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GDBT-15kVA Transformer Core Loss Test Bench
GDBT-15kVA Digital Intelligent Transformer Core Loss Test Bench (15kVA, 0-1000V AC) with 50/60Hz Dual Frequency Output, 0.1-Class Power Analyzer, Adjustable Universal Test Fixture, PLC+Touch Screen Control, Automatic Test Procedure, for Transformer Core, Silicon Steel Sheet, Motor Core No-Load Loss Test.
- Description
- Specifications
- Applications
- Advantages
- FAQ
- Recommended Products
Description
The GDBT-15kVA is a professional, dedicated core loss test systemexclusively designed for no-load loss and no-load current measurement of transformer cores, silicon steel sheets and motor cores. It fully complies with IEC 60404-2:2008 and GB/T 3655-2008 standards, adopting advanced digital waveform compensation technology to ensure pure sine wave output under different load conditions, which is critical for accurate core loss measurement.
The system consists of a main control console (with PLC, 0.1-class power analyzer and 7-inch touch screen), variable frequency power supply, booster transformer, adjustable universal test fixture and auxiliary power unit. Equipped with a high-precision digital power analyzer (100MHz bandwidth, 1GS/s sampling rate), it can automatically measure no-load loss, no-load current, power factor and voltage waveform distortion. The test fixture is adjustable to fit different sizes of laminated cores, wound cores and silicon steel sheet samples. With fully automatic test procedure and comprehensive safety protection, it ensures fast, accurate and safe core loss testing in transformer manufacturing plants and silicon steel suppliers. Ideal for factory acceptance tests (FAT) of transformer cores, incoming inspection of silicon steel sheets and material performance research experiments.
Specifications
| Parameter | Specification |
|---|---|
| Rated Output Power | 15kVA |
| Output Voltage | 0–1000V AC (RMS), continuous adjustable, 1V step |
| Output Frequency | 50Hz / 60Hz (automatic switching) |
| Output Waveform Distortion | ≤1% (full load) |
| Voltage Stability | ≤±0.5% |
| Voltage Measurement Accuracy | ±0.1% (range 1V–1000V) |
| Current Measurement Accuracy | ±0.1% (range 0.01A–15A) |
| Active Power Measurement Accuracy | ±0.2% (0.05≤cosφ≤1) |
| Power Factor Measurement Accuracy | ±0.001 (range 0–1) |
| Maximum Core Size | 1200mm(L) × 800mm(W) × 500mm(H) |
| Fixture Adjustment Range | Height: 0–500mm, Width: 0–800mm |
| Contact Pressure | 0–0.5MPa (pneumatic adjustment) |
| Control System | PLC + 7-inch color touch screen |
| Operation Modes | Automatic mode, Manual mode, Semi-automatic mode |
| Test Parameter Presets | Up to 100 groups |
| Data Management | Unlimited storage, PDF/Excel report generation, Barcode scanning support |
| Communication Interface | RS485, USB, BNC (oscilloscope output) |
| Protection Functions | Over-voltage, Over-current, Short-circuit, Emergency stop, Ground detection, Interlock, Automatic discharge |
| Dimensions (mm) | 1800(L)×1000(W)×1500(H) |
| Weight | ~350kg (with casters) |
| Power Supply | 3-phase 380V±10%, 50Hz, 20kVA |
| Operating Temperature | -5℃ ~ +40℃ |
| Operating Humidity | ≤85%RH (non-condensing) |
| Altitude | ≤1000m |
| Compliance | IEC 60404-2:2008, GB/T 3655-2008, GB/T 2521-2016, IEC 60076-1:2022 |
Applications
Core Test Objects
- Transformer cores: laminated cores, wound cores, amorphous alloy cores (up to 5000kVA)
- Silicon steel sheets: grain-oriented and non-oriented silicon steel sheet samples
- Motor cores: stator cores and rotor cores of electric motors and generators
- Reactor cores: shunt reactor cores and series reactor cores
- Magnetic materials: ferrite cores, permalloy cores and other soft magnetic materials
Typical Usage Scenarios
- Transformer manufacturing plants: factory acceptance tests (FAT) of finished transformer cores
- Silicon steel suppliers: incoming inspection and quality control of silicon steel sheets
- Motor manufacturing plants: no-load loss test of motor cores
- Research institutes: magnetic material performance research and development
- Third-party testing laboratories: compliance testing and certification
- Technical schools and universities: teaching and demonstration experiments
Advantages
Compliance with International Standards
Fully meets IEC 60404-2, GB/T 3655 and GB/T 2521 standards → test results are globally recognized
50/60Hz Dual Frequency Output
Supports both 50Hz and 60Hz frequency output → meets test requirements of global markets
0.1-Class High Precision Measurement
Pure sine wave output with automatic waveform correction → ensures accurate core loss measurement, eliminates test errors
Adjustable Universal Test Fixture
Fits different sizes of transformer cores and silicon steel samples → one fixture covers all test requirements
Fully Automatic Operation
One-click test execution, automatic data processing and report generation → improves test efficiency by 80%, reduces human error
Comprehensive Safety Protection
Multiple protection layers + interlock protection → maximum safety for operators and test equipment
Compact & Cost-Effective Design
All-in-one desktop structure, optimized for core loss testing → ideal for small and medium-sized transformer manufacturers
FAQ
Q: What is the difference between GDBT-15kVA core loss test bench and GDBT series transformer comprehensive test system?
A:
- GDBT-15kVA (Core Loss): Dedicated to transformer core and silicon steel sheet no-load loss test, with adjustable test fixture, 50/60Hz dual frequency output, optimized for low-loss magnetic material measurement
- GDBT series (Comprehensive): Integrates all transformer test items (turns ratio, DC resistance, no-load/load loss, withstand voltage, etc.), designed for finished transformer factory tests Both use the same high-precision power measurement technology.
Q: What types of cores can GDBT-15kVA test?
A: It can test all types of transformer cores with capacity ≤5000kVA, including laminated cores, wound cores, amorphous alloy cores, as well as silicon steel sheet samples, motor cores and reactor cores. The adjustable test fixture fits core sizes up to 1200×800×500mm.
Q: Does it support 60Hz output for export transformer cores?
A: Yes. It supports both 50Hz and 60Hz frequency output with automatic switching, which meets the test requirements of transformer cores for global markets.
Q: What is the measurement accuracy of core loss?
A: The active power measurement accuracy is ±0.2% (0.05≤cosφ≤1), which meets the requirements of IEC 60404-2 for core loss measurement. The system also has automatic waveform distortion correction function to ensure accurate test results.
Q: Does it support automatic test and report generation?
A: Yes. It supports fully automatic test procedure: one-click start, automatic voltage regulation, automatic measurement, automatic result judgment and automatic PDF report generation. It also supports barcode scanning and data traceability.
