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DDG Generator: Specs & Applications for Power Systems
The DDG Large Current Generator is a specialized high-current generator instrument designed for primary current injection testing in the power industry. It serves as a critical tool for electrical engineers and technicians to perform a wide range of tests, including protective device inspection, secondary circuit current testing, current transformer (CT) testing, circuit breaker testing, current-loaded tests, and temperature-rise tests. Widely deployed in power plants, power distribution stations, electrical substations, and scientific research laboratories, this equipment ensures the reliability, safety, and compliance of power system components and installations.
Core Features
The DDG series integrates user-centric design and robust functionality to meet the demands of power system testing:
1. Dual Ammeter Monitoring: Equipped with two ammeters to enable simultaneous monitoring of both large and small current ranges, ensuring precise measurement across diverse test scenarios.
2. Adjustable Auto-Transformer: The integrated auto-transformer allows for free and stepless adjustment of output parameters, providing flexibility to meet the specific current requirements of different test procedures.
3. Intuitive Operation: Available in both pointer-type and digital LED indicating configurations, with intuitive rotary knob controls. This design simplifies operation, reduces the learning curve for technicians, and minimizes the risk of human error during testing.
4. Flexible Structural Design: Offered in both integrated and separated structures. The integrated design is compact and suitable for on-site testing in confined spaces, while the separated structure enhances portability and ease of movement, making it ideal for field applications across different locations.
Technical Specifications
The DDG series is available in a range of models with output currents from 500A to 20000A, each tailored to specific testing needs. Key specifications include:
表格
Model | Capacity (kVA) | Primary (V1/A1) | Secondary (V2/A2) | Dimensions (mm) | Weight (kg) | Structure |
500A | 3 | 200V / 15A | 6V / 500A | 430×338×550 | 48 | Integrated |
1000A | 6 | 200V / 30A | 6V / 1000A | 500×380×600 | 80 | Integrated |
2000A | 12 | 220V / 50A | 6V / 2000A | 550×420×700 / 400×520×800 | 65 / 45 | Separated |
2500A | 15 | 380V / 39.5A | 6V / 2500A | 600×430×790 / 580×480×820 | 85 / 65 | Separated |
3000A | 18 | 380V / 55A | 6V / 3000A | 620×440×800 | 160 | Separated |
4000A | 24 | 380V / 63A | 6V / 4000A | 640×450×820 / 300×500×500 | 105 / 85 | Separated |
5000A | 30 | 380V / 79A | 6V / 5000A | 600×430×900 / 300×500×500 | 145 / 135 | Separated |
6000A | 36 | 380V / 95A | 6V / 6000A | 600×430×900 / 300×500×500 | 150 / 140 | Separated |
8000A | 48 | 380V / 126A | 6V / 8000A | 600×450×950 / 350×550×550 | 180 | Separated |
10000A | 60 | 380V / 158A | 6V / 10000A | 800×600×1100 / 380×550×600 | 200 | Separated |
20000A | 60 | 380V / 158A | 6V / 20000A | 800×600×1100 / 380×550×600 | 240 | Separated |
Key takeaways from the specifications:
· Capacity: Ranges from 3kVA (500A model) to 60kVA (10000A and 20000A models), supporting varying power demands.
· Consistency: Secondary voltage (V2) remains 6V across all models, with secondary current (A2) matching the rated output current.
· Portability: Integrated models prioritize space efficiency, while separated models enhance mobility for field applications.
Applications and Value in Power Systems
In power system maintenance and testing, the DDG Large Current Generator plays a pivotal role in validating the performance of critical components:
· Protective Device Inspection: Verifies the accuracy and responsiveness of protective relays and devices, ensuring they operate correctly under fault conditions.
· CT Testing: Validates the accuracy of current transformers, which are essential for metering, protection, and control systems.
· Circuit Breaker Testing: Assesses the interrupting capacity and operational integrity of circuit breakers, critical for maintaining system stability during faults.
· Temperature-Rise Tests: Evaluates the thermal performance of electrical equipment under load, preventing overheating and potential failures.
By providing reliable, adjustable high-current outputs, the DDG series empowers technicians to conduct comprehensive tests efficiently, reducing downtime and enhancing the overall reliability of power systems.
Conclusion
The DDG Large Current Generator stands as a versatile and indispensable tool for power system testing and inspection. Its robust design, user-friendly features, and wide range of specifications make it suitable for diverse applications across the power industry. For electrical technicians and engineers, this equipment not only simplifies complex testing procedures but also ensures the safety, reliability, and compliance of power system operations. As the demand for precise and efficient power system testing continues to grow, the DDG series remains a trusted solution for professionals in the field.
GDZX is a manufacturer of power detection equipment, offering a diverse range of products with comprehensive models and providing professional technical support. Contact us at +86-27-6552607 or +86-17396104357.Website: http://en.gdzxdl.com/
