NKE-DTTS-AUTO/ 30000 Automatic Distribution Transformer Test System
Product Overview
NKE-DTTS-AUTO/30000 is an automated test system specially designed for medium- and large-capacity distribution transformers as well as new energy transformers. The entire equipment set is integrated into a standard 40-foot container, fully meeting international shipping requirements, enabling one-stop, fully automated operation of the entire transformer factory acceptance testing process. The system integrates core components such as an inverter power supply, intermediate transformers, compensation capacitors, measurement systems, and switches. It is equipped with Class 0.05 precision current and voltage transformers and YOKOGAWA WT500 series or higher power analyzers, developed and manufactured in strict accordance with IEC 60076 and IEEE C57.12.90-2021 international standards. It is suitable for testing single-phase and three-phase transformers rated at 34.5/0.38–13.2 kV, with a maximum capacity of 30,000 kVA and impedance voltages ranging from 5.75% to 12.0%.
Core Testing Functions and Operation Procedures
This system covers all core test items required for factory acceptance testing of transformers, including DC resistance, turns ratio and connection group tests, insulation resistance, no-load loss, load loss, induced voltage withstand test, and applied voltage withstand test. Optional features include temperature rise tests and partial discharge tests, meeting the diverse testing needs of different types of transformers. To accommodate the operational characteristics of various test items, the system employs a flexible hybrid wiring mode: DC resistance and turns ratio/connection group tests utilize dedicated test carts, allowing both tests to be completed with a single wiring setup; test data can be automatically uploaded to the conventional test system, enabling centralized data management and traceability. For no-load loss, load loss, induced voltage withstand, and applied voltage withstand tests, manual wiring is performed according to test requirements, after which the computer program automatically executes the entire testing procedure without any manual intervention. Upon completion of all tests, the system automatically calculates the results and generates a factory test report compliant with relevant standards, significantly improving testing efficiency and data accuracy.
Key Performance Parameters
1. Applicable Transformer Types: Three-phase and single-phase transformers
2. Applicable Voltage Levels: 34.5/0.38–13.2 kV range
3. Maximum Test Capacity: 30,000 kVA
4. Compatible Impedance Voltage Range: 5.75%–12.0%
5. Standards Adhered To: IEC 60076 / IEEE C57.12.90-2021
6. Precision Transformer Accuracy: Class 0.05
7. Power Analyzer Configuration: YOKOGAWA WT500 series or higher
8. Integration Method: Standard 40-foot container
9. Covered Test Items: DC resistance, turns ratio and connection group, insulation resistance, no-load loss, load loss, induced voltage withstand, applied voltage withstand; optional temperature rise and partial discharge tests
Core Advantages
1. Containerized Integrated Design: The entire system is housed within a standard 40-foot container, featuring a compact structure that requires no on-site assembly, meets international shipping requirements, and facilitates global transportation and deployment, addressing industry challenges related to the difficulties of transporting and deploying large-capacity testing equipment.
2. Hybrid Automation Mode: Different operating modes are adopted based on the characteristics of each test item—DC resistance and turns ratio tests are completed with a single wiring setup, with data automatically uploaded, reducing wiring effort and errors; other core tests are manually wired but then executed automatically, balancing operational flexibility with testing automation and resolving the fragmented workflow issues of traditional equipment.
3. High-Precision Measurement Configuration: Equipped with Class 0.05 precision current and voltage transformers and YOKOGAWA WT500 series or higher power analyzers, ensuring highly accurate and reliable measurement data that fully complies with international standards, thereby guaranteeing the authority and accuracy of test results.
4. End-to-End Data Management: Test data is automatically uploaded to the conventional test system, enabling centralized storage, management, and traceability, addressing the industry’s longstanding issue of scattered test data that is difficult to manage uniformly, thus facilitating quality control and data review.
5. Adaptability to Large-Capacity and New Energy Applications: Covering medium- and large-capacity transformers ranging from 5,000 kVA to 30,000 kVA, it perfectly accommodates the special testing needs of photovoltaic, wind power, and other new energy transformers, solving the problem of traditional equipment struggling to handle high-capacity new energy transformers.
Core Product Value
1. Standardized Automated Testing: In compliance with IEC and IEEE international standards, the system achieves fully automated factory acceptance testing of transformers, ensuring standardized procedures and consistent results, thereby enhancing factory testing efficiency and product quality stability.
2. Reduction in Labor and Time Costs: With the test cart completing two core tests in a single wiring setup and other tests executed automatically, wiring workload and manual operation time are significantly reduced, lowering labor costs and boosting batch testing efficiency.
3. Traceable Data Management: Test data is automatically uploaded and centrally managed, enabling full traceability throughout the testing process, facilitating troubleshooting of quality issues and analysis of product performance, thus helping enterprises improve their quality management capabilities.
4. Global Deployment Capability: The containerized integrated design meets shipping requirements, allowing rapid global transportation and on-site deployment, supporting enterprises’ global production and service strategies.
Target Customer Groups
Global transformer manufacturers, specialized producers of new energy transformers, large-capacity transformer manufacturers, transformer testing institutions, and power equipment service providers
Application Scenarios
1. Factory Acceptance Testing of Transformers: Suitable for batch factory acceptance testing of medium- and large-capacity distribution transformers, achieving standardized, automated end-to-end testing to ensure product quality upon shipment.
2. Manufacturing of New Energy Transformers: Meets the testing needs of specialized large-capacity transformers used in photovoltaic, wind power, and other new energy fields, satisfying the specific performance standards required for new energy equipment.
3. Multi-Voltage/Large-Capacity Transformer Testing: Provides precise, efficient full-project testing services for transformers ranging from 34.5/0.38–13.2 kV with capacities up to 30,000 kVA.
4. On-Site Testing for Overseas Projects: Leveraging its portable containerized design, the system can be transported to overseas production bases or project sites to perform on-site transformer testing and quality verification.
Solutions to Industry Pain Points
1. Solving the Wiring Challenges of Large-Capacity Transformers: Addressing the difficulty and heavy workload associated with wiring for medium- and large-capacity transformers, the test cart completes DC resistance and turns ratio tests with a single wiring setup, greatly reducing wiring steps and time while minimizing operational errors.
2. Tackling Chaotic Test Data Management: By automatically uploading data to the conventional test system, centralized storage and management of test data are achieved, resolving the longstanding issue of scattered test data across various instruments or paper records, making it difficult to trace.
3. Overcoming Difficulties in Equipment Transportation and Deployment: The containerized integrated design meets shipping standards, allowing the entire equipment set to be transported as a whole without on-site assembly, thus alleviating the challenges posed by the large size and weight of high-capacity testing equipment.
4. Resolving Fragmented Operational Processes: Adopting a hybrid automation mode that balances the operational needs of different test items—achieving efficient automated testing for core projects while retaining necessary manual wiring flexibility—addresses the fragmentation of traditional equipment operation workflows.
5. Solving the Adaptation Challenge for New Energy Transformers: Covering a wide capacity range from 5,000 kVA to 30,000 kVA and complying with the latest international standards, the system perfectly suits the special testing needs of photovoltaic, wind power, and other new energy transformers, overcoming the limitations of traditional equipment in handling new energy transformers.
Frequently Asked Questions (FAQ)
Q1: What types of transformers can NKE-DTTS-AUTO/30000 test?
A: This system is applicable to three-phase and single-phase distribution transformers rated at 34.5/0.38–13.2 kV, with a maximum capacity of 30,000 kVA and impedance voltages ranging from 5.75% to 12.0%. It also accommodates large-capacity specialized transformers used in photovoltaic, wind power, and other new energy fields.
Q2: How is the system’s test data managed?
A: Data from DC resistance and turns ratio tests can be automatically uploaded to the conventional test system, enabling centralized storage, management, and traceability. After all tests are completed, the system automatically calculates the results and generates a standard factory test report, facilitating data archiving and analysis.
Q3: Is the system easy to transport and deploy?
A: The entire system is integrated into a standard 40-foot container, fully meeting international shipping requirements. It can be directly shipped to its destination via sea or land transport without on-site assembly, making deployment quick and convenient.
Q4: Does the system comply with international standards?
A: The system is rigorously developed and manufactured in strict accordance with IEC 60076 and IEEE C57.12.90-2021 international standards, equipped with high-precision measurement components. Its test results fully meet international standards, satisfying global market demands for product testing.
Q5: What is the level of automation in the system?
A: The system adopts a hybrid automation mode: DC resistance and turns ratio tests are automatically completed with a single wiring setup and data uploaded; no-load loss, load loss, induced voltage withstand, and applied voltage withstand tests are manually wired but then automatically executed by the computer program. Operators only need to input basic parameters to complete all tests, resulting in a high degree of automation and significant improvement in testing efficiency.
