EN
GDSL-D-5000A Single-Phase Digital Long-Duration High Current Generator
GDSL-D-5000A Digital Intelligent Single-Phase Long-Duration High Current Generator with 0-5000A Continuous Output, Dual Redundant Forced Air Cooling, Automatic Timing, Multi-Level Safety Protection, for Electrical Equipment Temperature Rise and Thermal Stability Test.
- Description
- Specifications
- Applications
- Advantages
- FAQ
- Recommended Products
Description
The GDSL-D-5000A is a professional-grade, long-duration continuous duty high current generatorexclusively designed for temperature rise tests, thermal stability tests and durability tests of low-voltage busbars, switchgears, circuit breakers, contactors and power cables in electrical manufacturing and power systems. It fully complies with GB/T 11022-2011, GB/T 3906-2020 and IEC 60947-1:2020 standards, adopting an innovative split modular design that separates the control console and current booster, both equipped with universal wheels and brakes for easy on-site deployment and movement.
The instrument features a high-efficiency toroidal current booster with low loss and high output efficiency, delivering 0-5000A single-phase continuously adjustable large current output with ±1% measurement accuracy and 0.2% current stability. The dual redundant forced air cooling system with closed-loop temperature control ensures stable operation at 100% rated current without time limitation, solving the overheating problem of traditional short-time generators during long-term tests. The built-in 0.2-class high-precision true RMS current transformer eliminates the need for external standard meters, ensuring accurate and reliable measurement results even during long-term continuous operation.
Specifications
| Parameter | Specification |
|---|---|
| System Parameters | |
| Compliance Standard | GB/T 11022-2011, GB/T 3906-2020, GB/T 14048.1-2023, IEC 60947-1:2020, DL/T 848.1-2004 |
| Structure Type | Split modular (control console + current booster) |
| Mobility | Universal wheels with brakes on both units |
| Operation Modes | Manual mode / Automatic mode |
| Display | 4.3-inch 480×272 color digital display |
| Parameter Memory | 10 groups of test parameters |
| Timing Function | 0 ~ 9999.9s adjustable, ±0.1s accuracy, audible and visual alarm |
| Electrical Parameters | |
| Input Power | AC 380V±10%, three-phase four-wire, 50Hz±1Hz |
| Rated Capacity | 30kVA |
| Output Current Range | 0 ~ 5000A AC single-phase continuously adjustable |
| Output Voltage Range | 0 ~ 6V AC continuously adjustable |
| Current Accuracy | ±1% of reading |
| Current Stability | ≤0.2% |
| Current Resolution | 0.1A |
| Output Waveform | Standard sine wave |
| Waveform Distortion | ≤3% |
| Rated Duty Cycle | 100% continuous operation at 5000A |
| Cooling System | |
| Cooling Method | Dual redundant forced air cooling |
| Temperature Control | Closed-loop automatic temperature control |
| Temperature Alarm | 70℃ warning, 85℃ protection |
| Protection Functions | |
| Overcurrent Protection | Yes (adjustable threshold) |
| Overload Protection | Yes (110% rated current) |
| Overheat Protection | Yes (85℃ automatic stop) |
| Short Circuit Protection | Yes (≤1ms response) |
| Zero Position Protection | Yes |
| Door Interlock Protection | Yes |
| Emergency Stop | Yes |
| Power Supply | |
| Input Power | AC 380V±10%, three-phase four-wire, 50Hz |
| Power Consumption | ≤30kW (peak) |
| Physical Parameters | |
| Control Console Dimensions | 500×400×350mm (L×W×H) |
| Current Booster Dimensions | 600×500×400mm (L×W×H) |
| Control Console Weight | ~35kg |
| Current Booster Weight | ~65kg |
| Total Weight | ~100kg |
| Housing | Cold-rolled steel with electrostatic spraying |
| Protection Grade | IP40 |
| Operating Temperature | -10℃ ~ +50℃ |
| Storage Temperature | -20℃ ~ +60℃ |
| Humidity | ≤85% RH (non-condensing) |
| Altitude | ≤2000m (customizable for higher altitudes) |
Applications
Core Test Objects
- Busbar Systems: Low-voltage busbars, bus ducts, copper/aluminum rows, cable trays temperature rise test
- Switchgear: Low-voltage switchgears, distribution cabinets, motor control centers (MCC) thermal stability test
- Switching Devices: Circuit breakers (ACB, MCCB, MCB), disconnectors, load switches, fuse switches temperature rise test
- Contactors & Relays: AC contactors, DC contactors, thermal relays, overcurrent protectors durability test
- Power Cables: Power cables, wire harnesses, connecting terminals temperature rise test
Typical Usage Scenarios
- Switchgear manufacturers: Mass production factory quality control, type tests, batch production inspection
- Busbar manufacturers: Busbar temperature rise test, product certification testing
- Power companies: Substation switchgear acceptance test, on-site thermal stability verification
- Third-party testing institutions: Electrical equipment certification testing, quality arbitration testing
- Industrial enterprises: Internal electrical equipment commissioning, regular maintenance testing
Advantages
Compliance with Latest International Standards
Fully meets GB/T 11022-2011, GB/T 3906-2020 Chinese national standards and IEC 60947-1 international standard → test results are recognized by certification bodies worldwide
Industry-Leading 100% Continuous Duty
Uninterrupted operation at 5000A rated current, solving the overheating problem of traditional short-time generators during long-term temperature rise tests → the only choice for 3-8 hour standard temperature rise tests
High-Precision & Stable Current Output
±1% measurement accuracy, 0.2% current stability, true RMS measurement → ensures accurate and reliable test results that meet the strict requirements of international standards
Comprehensive Six-Level Safety Protection
Multiple electrical and mechanical protection measures, isolated control circuit → ensures absolute safety of operators and equipment during long-term high current testing
Split Mobile Design
Control console and current booster separated, both with universal wheels, easy to carry and deploy in different test sites → ideal for both factory laboratory and on-site acceptance tests
Industrial-Grade Reliability
Rugged construction, dual redundant cooling system, wide operating temperature range → works reliably 24/7 in harsh factory environments
Long Service Life & Low Maintenance Cost
Industrial-grade components, modular design → long service life, easy maintenance, low long-term operating cost
FAQ
Q: How long can GDSL-D-5000A run continuously at 5000A rated current?
A: GDSL-D-5000A can run continuously for unlimited time at 5000A rated current under normal ambient temperature (≤40℃). The dual redundant cooling system and closed-loop temperature control ensure that the winding temperature remains within the safe range during long-term operation. It fully meets the requirements of GB/T 11022-2011 standard for temperature rise tests, which usually require 3-8 hours of continuous operation until thermal stability is reached .
Q: Why does it use three-phase input but single-phase output?
A: The rated capacity of GDSL-D-5000A is 30kVA. If using single-phase 220V input, the input current would reach 136A, which requires very thick power cables and is not convenient for factory use. Using three-phase 380V input reduces the input current to only 45A per phase, making it easier to connect to standard factory power supplies. The output is single-phase to meet the requirements of most temperature rise tests for single-phase busbars and switchgears.
Q: What is the requirement for current stability during temperature rise tests?
A: According to GB/T 11022-2011 standard, the test current should be maintained within ±2% of the rated value during the entire temperature rise test . GDSL-D-5000A has a current stability of ≤0.2%, which is much better than the standard requirement, ensuring accurate and reliable temperature rise test results.
