Product Overview
The NKE-DTTS-SE/5000 semi-automatic distribution transformer test system is a **vehicle-mounted, container-integrated** medium- and high-voltage transformer testing device. It strictly complies with the IEC 60076 and IEEE C57.12.90-2021 international standards, focusing on high-precision factory acceptance testing for transformers rated at 36 kV and with a capacity of 5000 kVA. The equipment is compatible with all types of oil-immersed and dry-type distribution transformers, covering full specifications from 36 kV down to 4.16 kV on the high-voltage side and from 0.12 kV to 1.5 kV on the low-voltage side. Its impedance range is adaptable between 2% and 10%, making it an ideal specialized device for routine factory tests, on-site acceptance inspections, and standardized certification testing of medium- and small-sized high-capacity transformers.
The entire unit integrates the distribution cabinet, variable-frequency power supply, intermediate transformer, compensation capacitor, measurement system, and power-frequency test transformer into a standard 20-foot or 40-foot shipping container. This all-in-one structure eliminates the need for complex infrastructure, allows for vehicle-mounted transport, and enables rapid deployment. Powered by 0.05-class precision current and voltage transformers along with Yokogawa WT500 and higher-end power analyzers, combined with a semi-automatic intelligent testing workflow, the system significantly shortens overall test durations, automatically performs data calculations, and generates reports. It meets the demands of mass production testing in factories as well as the quick setup of modular overseas test stations.
Operating Principle
The equipment adopts an integrated architecture, consolidating complete power supply, compensation, step-up, and measurement units to provide stable standard power and precise data acquisition conditions for comprehensive transformer testing;
For DC resistance and turns-ratio tests, the test vehicle can complete multiple test items with a single wiring connection, greatly reducing repetitive wiring procedures, while test data can be directly uploaded to the routine test system for archiving;
High-voltage tests such as no-load loss, load loss, induced withstand voltage, and power-frequency withstand voltage are conducted according to international standard procedures after standardized wiring; the entire test process is then fully automated by computer programs;
The system relies on high-precision measurement components to collect, calibrate, and compute test data in real time. Upon completion, it automatically generates, calculates, and exports standardized factory test reports, enabling efficient, compliant, and traceable semi-automatic testing operations.
Core Test Items
Standard default test items include: DC resistance test, turns-ratio test, insulation resistance test, no-load loss test, load loss test, induced withstand voltage test, and power-frequency withstand voltage test.
Optional extended test items include: temperature-rise test and partial-discharge test.
System Adaptability to Voltage, Capacity, and Parameters
The equipment supports three-phase and single-phase oil-immersed and dry-type distribution transformers, with the following key parameters:
1. High-voltage adaptation range: full coverage from 4.16 kV to 36 kV.
2. Low-voltage adaptation range: 0.12 kV to 1.5 kV.
3. Impedance adaptation range: 2% to 10%.
4. Maximum test capacity: 5000 kVA.
5. Applicable models: universally compatible with both oil-immersed and dry-type transformers.
6. Compliance standards: IEC 60076 and IEEE C57.12.90-2021.
7. Measurement accuracy configuration: 0.05-class precision current and voltage transformers paired with Yokogawa WT500 and higher-power analyzers.
8. Customization capability: supports personalized customization for special-parameter test transformers.
Key Advantages and Selling Points
Vehicle-mounted container-integrated model: featuring a dedicated vehicle-mounted structural design that integrates all test units, eliminating the need for infrastructure, facilitating transportation and relocation, and allowing immediate deployment upon arrival.
Efficient, time-saving testing workflow: supports completing DC resistance and turns-ratio tests with a single wiring connection, significantly shortening the overall transformer testing cycle and boosting batch-testing efficiency.
Broad parameter adaptability: covers all mainstream voltages up to 36 kV and a wide impedance range of 2%–10%, compatible with both dry-type and oil-immersed transformers.
International-standard compliance and precision: rigorously aligned with both IEC and IEEE standards, equipped with ultra-high-precision 0.05-class components, ensuring standardized test data and internationally recognized reports.
Highly integrated all-in-one design: combines variable-frequency power supply, power-frequency test transformer, compensation capacitors, and measurement systems, replacing multiple traditional test devices with a single unit.
Smart semi-automatic operation: manual wiring, automated program execution, automatic data calculation, and automatic report generation, reducing human error and labor costs.
Customizable adaptability: supports customizations for special-parameter test transformers, meeting non-standard operating conditions and personalized testing needs.
Comprehensive after-sales support: provides professional, end-to-end after-sales service to ensure long-term stable operation of the equipment.
Target Customer Groups
Global small- and medium-sized transformer manufacturers, international third-party quality inspection and certification agencies, power equipment maintenance and acceptance companies, overseas power engineering general contractors, and modular mobile test station construction entities.
Application Scenarios (expanding long-tail keywords to improve Google rankings)
Transformer manufacturing enterprises: routine full-item factory testing for medium- and large-capacity distribution transformers rated at 5000 kVA and below.
Third-party quality inspection and certification agencies: standardized testing and certification trials for medium- and high-voltage distribution transformers rated at 36 kV and below.
Power maintenance units: on-site acceptance inspections upon arrival of transformers, performance sampling tests, and fault re-inspection trials.
Overseas power engineering projects: cross-border deployment of containerized equipment and rapid establishment of mobile test stations.
Upgrading and renovating small- and medium-sized test stations: replacing scattered outdated equipment with a one-stop standardized full-item testing solution.
Solving Industry Pain Points
Addresses the pain points of traditional fixed test stations—cumbersome infrastructure, lengthy construction periods, inability to move or relocate, and difficulties in overseas deployment—by offering a vehicle-mounted container-based solution that enables rapid deployment and flexible relocation.
Resolves issues with ordinary test equipment—low precision, non-standard data, failure to meet IEC/IEEE international standards, and reports unable to pass international certification.
Tackles the shortcomings of conventional equipment—limited capacity, narrow voltage coverage, poor model compatibility—making it incapable of handling 5000 kVA/36 kV transformer testing.
Mitigates inefficiencies caused by traditional manual step-by-step testing—cumbersome wiring, complicated procedures, time-consuming processes, significant human errors, and high labor costs.
Overcomes industry challenges posed by fragmented testing equipment and disjointed test projects requiring multiple devices for sequential testing, resulting in chaotic workflows and low efficiency.
Core Product Value
The NKE-DTTS-SE/5000 semi-automatic distribution transformer test system is specifically designed for small- and medium-sized distribution transformer testing scenarios. With its vehicle-mounted container-integrated structure, it completely breaks free from the constraints of traditional test station infrastructure, enabling rapid deployment and mobile operations. Its semi-automatic one-wiring test mode dramatically shortens testing times and significantly boosts factory batch-testing capacity. Ultra-high-precision hardware configurations and dual international standard compliance ensure compliant, authoritative test data, helping products smoothly enter international markets and obtain certifications. Integrating all test functions into a single unit, it replaces multiple scattered devices, reducing equipment procurement and maintenance costs, while comprehensive after-sales service provides customers with a worry-free, efficient, and compliant overall solution for transformer factory testing.
Frequently Asked Questions (FAQ)
Q1: What capacity and voltage range does the NKE-DTTS-SE/5000 support?
A: It supports up to 5000 kVA capacity, with high-voltage coverage ranging from 4.16 kV to 36 kV, low-voltage from 0.12 kV to 1.5 kV, and impedance adaptable between 2% and 10%. It is compatible with both dry-type and oil-immersed transformers.
Q2: What is the structural form of the equipment, and is it easy to move?
A: It features a vehicle-mounted design combined with a standard container-integrated structure, allowing flexible transport without complex infrastructure, making it suitable for on-site acceptance inspections and rapid deployment in overseas projects.
Q3: What efficiency advantages does the testing process offer?
A: For DC resistance and turns-ratio tests, a single wiring connection completes the entire test, significantly shortening the testing duration. Other test items run automatically via programmed sequences, with test reports generated and exported automatically.
Q4: Does the equipment meet international export standards?
A: It strictly adheres to both IEC 60076 and IEEE C57.12.90-2021 international standards, equipped with 0.05-class high-precision measurement components, ensuring compliant data and internationally recognized reports.
Q5: Does it support customization for non-standard parameters?
A: Yes, it supports customer-specific customization of special-parameter test transformers, and can also extend functionality to include temperature-rise and partial-discharge tests.
