EN
GDBR-P Transformer Capacity & No-Load Load Loss Tester
GDBR-P Digital Intelligent Portable Active Transformer Capacity & No-Load/Load Loss Tester (10kVA-10000kVA) with Built-in Three-Phase Test Power Supply, Digital Synthesized Sine Wave, Automatic Temperature Correction, Auto Capacity Verification, 7-inch Touch Screen, for On-Site Transformer Capacity Check, Loss Measurement and Energy Efficiency Grade Determination.
- Description
- Specifications
- Applications
- Advantages
- FAQ
- Recommended Products
Description
The GDBR-P is a professional, field-optimized active transformer test instrumentexclusively designed for on-site capacity verification, no-load/load loss measurement and energy efficiency grade determination of distribution and power transformers. It fully complies with DL/T 1256-2013 and IEC 60076-1:2022 standards, adopting advanced digital synthesized three-phase standard sine wave technology and high-precision power measurement algorithm, eliminating the need for external voltage regulators, boosters and current boosters required by traditional test methods.
The instrument features an integrated all-in-one design with a built-in high-power three-phase test power supply, which can directly output the required test voltage and current for transformer capacity and loss measurement. Equipped with a 7-inch high-resolution color touch screen and intuitive graphical interface, it supports one-time wiring to complete all test items including capacity, no-load loss, no-load current, load loss, impedance voltage and power factor. It has automatic temperature correction function according to IEC standards, and can automatically verify the authenticity of transformer rated capacity and determine energy efficiency grade. With a built-in 7.4V/10Ah large-capacity lithium battery, it can work continuously for more than 8 hours without external power supply, making it ideal for remote on-site testing. Ideal for power company on-site capacity anti-counterfeiting, transformer factory outgoing inspection, third-party testing institution on-site acceptance and industrial enterprise transformer commissioning tests.
Specifications
| Parameter | Specification |
|---|---|
| Capacity Test Range | 10kVA – 10000kVA |
| Supported Transformer Types | Oil-immersed (S7-S25), Dry-type (SCB9-SCB15), Amorphous alloy (SH15-SH17) |
| Voltage Test Range | 0 – 750V AC (RMS) |
| Current Test Range | 0 – 100A AC (RMS) |
| Capacity Measurement Accuracy | ±1% |
| No-Load Loss Measurement Accuracy | ±0.5% (0.1≤cosφ≤1) |
| Load Loss Measurement Accuracy | ±1% (0.1≤cosφ≤1) |
| Impedance Voltage Measurement Accuracy | ±1% |
| Voltage/Current Measurement Accuracy | ±0.2% |
| Power Supply | AC 220V±10%, 50Hz + built-in 7.4V/10Ah lithium battery |
| Battery Life | >8 hours continuous operation |
| Charging Time | ~4 hours (full charge) |
| Automatic Correction | Waveform distortion correction, Temperature correction (20℃/75℃/115℃), Voltage correction, Current correction |
| Capacity Verification | Yes (built-in standard transformer database) |
| Energy Efficiency Grade Determination | Yes (GB 20052-2020 / IEC 60076-1) |
| Harmonic Analysis | Up to 31st order |
| Display | 7-inch high-resolution color touch screen |
| Data Storage | 1000 groups (with time stamp, power-off protection) |
| Data Export | USB interface, PDF/Excel report generation |
| Language Support | Chinese/English bilingual |
| Protection Functions | Over-voltage, Over-current, Short-circuit, Over-temperature, Reverse polarity, Automatic discharge |
| Dimensions (mm) | 420×350×180 (L×W×H) |
| Weight | ~8kg (including battery) |
| Operating Temperature | -10℃ ~ +50℃ |
| Operating Humidity | ≤90%RH (non-condensing) |
| Altitude | ≤2000m |
| Compliance | DL/T 1256-2013, GB/T 1094.1-2021, IEC 60076-1:2022, GB 20052-2020 |
Applications
Core Test Objects
- Oil-immersed transformers: 10kV/35kV S7/S9/S11/S13/S15/S20/S25 series (10kVA-10000kVA)
- Dry-type transformers: 10kV/35kV SCB9/SCB10/SCB11/SCB13/SCB14/SCB15 series (10kVA-10000kVA)
- Amorphous alloy transformers: SH15/SH16/SH17 series
- Special transformers: distribution transformers, pole-mounted transformers, box-type transformers
Typical Usage Scenarios
- Power companies: on-site transformer capacity verification and anti-counterfeiting
- Transformer manufacturing plants: outgoing inspection and quality control
- Third-party testing institutions: on-site acceptance and compliance testing
- Industrial and mining enterprises: transformer commissioning and preventive maintenance
- Energy management departments: transformer energy efficiency grade determination
- Technical schools and universities: teaching and demonstration experiments
Advantages
Compliance with International Standards
Fully meets DL/T 1256-2013, GB/T 1094.1-2021 and IEC 60076-1 standards → test results are globally recognized
No External Auxiliary Equipment
Built-in three-phase test power supply, no need for voltage regulators, boosters or current boosters → one instrument completes all tests, reduces equipment weight by 90%
Ultra-Fast Test Speed
One-time wiring completes all test items, test time reduced from hours to minutes → improves work efficiency by 90%
Automatic Capacity Verification
Built-in standard transformer database, automatically determines capacity authenticity → solves the problem of transformer capacity fraud
Automatic Energy Efficiency Grade Determination
Automatically calculates energy efficiency grade according to latest standards → meets global energy efficiency regulatory requirements
Portable & Long Battery Life
8kg lightweight design with 8-hour battery life → ideal for remote on-site testing without power supply
High Precision Measurement
0.5-class power measurement accuracy with automatic correction → ensures accurate and reliable test results
Intelligent Data Management
Automatic report generation, USB export and data traceability → eliminates manual recording errors
FAQ
Q: What is the difference between GDBR-P and traditional transformer test methods?
A: Traditional transformer capacity and loss tests require multiple pieces of equipment including a three-phase voltage regulator, booster transformer, current booster and power analyzer, which are heavy, bulky and require complex wiring. GDBR-P integrates all functions into one portable instrument with a built-in three-phase test power supply, no external auxiliary equipment needed, one-time wiring completes all tests, and test time is reduced from 2-3 hours to 5-10 minutes.
Q: How does GDBR-P verify transformer capacity authenticity?
A: It has a built-in database of standard transformer parameters for all mainstream models (S7-S25, SCB9-SCB15). It measures the actual no-load loss and load loss of the transformer, automatically corrects them to standard temperature, and compares them with the standard values in the database to determine whether the transformer's rated capacity is authentic.
Q: Can it test transformers without external power supply?
A: Yes. It has a built-in 7.4V/10Ah large-capacity lithium battery that can work continuously for more than 8 hours, making it ideal for remote on-site testing where there is no mains power supply.
Q: Does it support energy efficiency grade determination?
A: Yes. It automatically calculates the energy efficiency grade of the transformer according to the latest GB 20052-2020 and IEC 60076-1 standards, which meets the requirements of global energy efficiency regulations.
Q: What types of transformers can GDBR-P test?
A: It can test all 10kV/35kV transformers with capacity from 10kVA to 10000kVA, including oil-immersed transformers, dry-type transformers and amorphous alloy transformers.
