The DDGS-S-4000A is a three-phase AC high-current temperature-rise test system designed to evaluate temperature variations in electrical equipment and materials under high-current operating conditions at specified parameters. It is suitable for both field-site and laboratory environments.
This technical solution covers the design, manufacture and application of the 4000A three-phase AC high-current temperature-rise test system, providing a complete reference for technical personnel in related fields. Built around core components including the high-current generator, load cabinet, temperature controller, data acquisition system and control system, the system specifies the design principles, technical parameters and implementation strategy of each component.
| No. | Parameter Item | Specification |
|---|---|---|
| - | Open-circuit Voltage | 10V |
| - | Current Setting | Independent setting for single-phase / three-phase current; fully-automatic adjustment |
| - | Temperature-rise Accuracy | Within Class 0.5 |
| 2.1.1 | Power Input | 380V±10%, Frequency: 50Hz±0.5Hz |
| 2.1.2 | Test Current Range | 0 ~ 4000A |
| 2.1.3 | Test Current Ripple Factor | <5% |
| 2.1.4 | Output Current Stability | ≤0.5% |
| 2.1.5 | Timing Setting & Recording Range | 0-12H (long-time output supported) |
| 2.1.6 | Ambient Temperature | -20ºC ~ 50ºC |
| 2.1.7 | Acquisition Chip | High-precision sensor with 24-bit AD temperature acquisition chip |
| 2.1.8 | Continuous Output & Current-rising Performance | Long-time output (minimum 8 hours); fast current rise, reaches and stabilizes at set-point within 10-20 seconds after current setting |
| 2.1.9 | Main Controller | Built-in high-configuration industrial computer; STM single-chip microcontroller as central programmable processor for real-time scanning of test samples to realize comprehensive monitoring and closed-loop control |
| 2.1.10 | Human-Machine Interface | 10-inch true-color large touch-screen LCD; intelligent sensors supporting field-bus technology for fully-digital data transmission; full-Chinese menu with clear and intuitive interface. No external auxiliary equipment required; fully-automatic fool-proof control for fast, simple and convenient operation |
| 2.1.11 | Operation Mode | Only target current setting is required; no manual monitoring during test |
| 2.1.12 | Protection & Alarm Functions | Auto-alarm for over-limit values; reliable self-protection against over-heating, over-current, over-voltage and short-circuit faults |
| 2.1.13 | Software Functions | User-friendly full-Chinese interface; supports data recording and storage of current-temperature waveforms. All parameters are configurable in software for intuitive analysis of current-temperature correlation. All test data and analysis results are clearly displayed. Automatically tracks target current and stabilizes output current throughout the test |
| 2.1.14 | Calibration Function | Built-in accuracy-adjustment menu for manual error modification. Programmable three-phase AC constant-current power supply supports full-intelligent calibration; multi-segment calibration coefficients are automatically generated within adjustable range to guarantee current-stabilizing accuracy |
| 2.1.15 | Customization & Upgrade | Custom test modules available upon customer requirements; lifetime-free software upgrade |
Q1: Is your company a sales or a manufacturer?
We are an integrated trade and manufacturing company with our own factory.
Q2: If we need to customize our own brand or if there are special requirements for the built-in software of the machine, can it be customized?
Yes, we accept OEM/ODM/OBM and can customize the built-in software of the product according to the customer's special requirements.
Q3: What is the usual lead time? How long can we receive the order after placing it?
In normal circumstances, products in stock can be received within 5 to 7 days via the fastest international express. Other situations may vary depending on the quantity of products ordered, whether there are special customization requirements, and the delivery time chosen.
Q4: How can we ensure that the product will not be damaged during transportation, considering the large size of the product?
We have professional internal and external packaging to ensure the safety and stability of the products during transportation. For fragile or other special parts, we will include an extra set to ensure that the customer can use the product immediately upon receipt.
Q5: How do you handle after-sales service? What if there is a quality problem with the product or if the customer does not know how to operate it?
For quality issues that are not caused by human error, we provide a one-year warranty from the time the product is delivered, and lifetime technical support. Other after-sales issues will be addressed by our professional technical staff within 24 hours. The product comes with a user manual and an operation video.
