Product Overview
The NKE-DTTS-AUTO/500 fully automatic distribution transformer testing system is a specialized, fully automated testing device developed by the NKE-DTTS-AUTO series for **small single-phase distribution transformers**. It strictly complies with both IEC 60076 and IEEE C57.12.90-2021 international standards, focusing on standardized factory acceptance tests for single-phase transformers rated at 36 kV and with a capacity of up to 500 kVA. The equipment precisely accommodates pole-mounted and ground-mounted transformer testing scenarios, covering low-voltage ranges from 0.12 kV to 1.5 kV and impedance levels between 2% and 8%, making it a dedicated high-precision solution for batch testing small-capacity distribution transformers.
The entire unit features an integrated cabinet design, combining a variable-frequency power supply, intermediate transformers, a high-precision measurement system, and an intelligent selector switch. Its compact structure and flexible deployment eliminate the need for complex infrastructure. Equipped with 0.05-class precision current transformers and Yokogawa WT500 or higher-grade power analyzers, the system ensures accurate and compliant test data. It supports **one-time wiring and one-button fully automatic testing**, eliminating the need for repetitive manual operations. A computer automatically completes the full suite of tests, processes the data, and generates reports, while also allowing for customized testing plans. Higher-end configurations can be adapted for containerized maritime deployment, perfectly meeting the demands of mass production testing for small transformers, third-party certification, and overseas project testing.
Operating Principle
The device integrates power supply, voltage regulation, reactive power compensation, intelligent circuit switching, and high-precision measurement units into a unified system, establishing a standardized testing framework suitable for single-phase small-capacity transformers rated at 36 kV and below, and stably accommodating various devices within an impedance range of 2% to 8%.
For testing, only a single standard wiring connection is required. The system uses its built-in intelligent selector switch to automatically route test circuits for resistance, turns ratio, insulation, losses, and dielectric strength, thereby eliminating the tedious process of repeatedly disconnecting and reconnecting wires in traditional equipment.
Once the fully automatic testing program is initiated, the equipment runs all factory acceptance test items without human intervention, relying on high-precision hardware to collect and calibrate test data in real time.
Upon completion of testing, the system automatically processes the results and generates a standardized factory acceptance report, eliminating the need for manual preparation and achieving paperless, low-error, traceable, fully automated testing throughout the entire process.
Core Testing Items
Standard default test items include: DC resistance test, turns ratio (turns count) 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 Compatibility with Voltage, Capacity, and Parameters
Designed specifically for single-phase distribution transformers, this equipment is compatible with pole-mounted and ground-mounted small transformers. Its core parameters are genuine and compliant as follows:
1. High-voltage compatibility range: Full coverage from 4.16 kV to 36 kV.
2. Low-voltage compatibility range: 0.12 kV to 1.5 kV.
3. Impedance compatibility range: 2% to 8%.
4. Maximum test capacity: 500 kVA.
5. Applicable models: Single-phase pole-mounted transformers and ground-mounted transformers.
6. Compliance standards: IEC 60076 and IEEE C57.12.90-2021.
7. Measurement accuracy configuration: 0.05-class precision current transformers paired with Yokogawa WT500 or higher-grade power analyzers.
8. Customization capability: Supports special parameter specifications for test transformers and personalized customization of overall testing plans.
Key Advantages and Selling Points
Exclusive single-phase transformer compatibility: Specifically developed for 500 kVA small single-phase distribution transformers, precisely matching pole-mounted and ground-mounted models, with an impedance range of 2% to 8%.
One-time wiring and fully automatic operation: Eliminates the traditional repetitive wiring and step-by-step testing approach; a single wiring connection suffices to complete all factory acceptance tests, significantly shortening the testing cycle.
Fully automatic report generation without manual intervention: The entire testing process runs automatically, data is calculated automatically, and factory acceptance reports are exported automatically, completely removing manual tabulation and manual calculation steps.
Ultra-high 0.05-class accuracy compliance: Equipped with precision measurement hardware and high-end Yokogawa power analyzers, rigorously aligned with IEC 60076 international standards, ensuring authoritative, compliant, and globally applicable data.
High-efficiency mass production cost reduction and efficiency improvement: Featuring a four-station automated design, a single operator can independently handle batch production testing, reducing labor input and lowering labor and time costs.
Low operational threshold and ease of use: Extremely simple one-click automated operation—no need for highly skilled technicians; basic training is sufficient for operators, reducing personnel dependency and training costs.
Safety protection for high-voltage operations: Employing strong–weak current partition isolation design to mitigate safety risks associated with live high-voltage work, ensuring operator and equipment safety.
Paperless and traceable data management: A central host computer uniformly controls all test data throughout the process, automatically storing records that are fully traceable, thus preventing errors and loss associated with paper-based records.
Flexible customization and strong adaptability: Supports personalized customization of equipment parameters and testing plans, with high-end containerized versions suitable for maritime export and overseas mobile testing scenarios.
Target Customer Groups
Global manufacturers of small distribution transformers, producers of single-phase pole-mounted transformers, international third-party quality inspection and certification agencies, large power and grid companies, overseas power engineering general contractors, and on-site mobile testing project contractors.
Application Scenarios (expanding long-tail keywords to improve Google rankings)
Transformer manufacturers: Routine fully automatic factory acceptance tests for batches of 500 kVA small single-phase pole-mounted or ground-mounted transformers (core mass-production scenario).
Third-party quality inspection and certification agencies: Standardized testing and authoritative certification trials for small single-phase distribution transformers rated at 36 kV and below.
Large power and grid enterprises: Spot checks upon arrival of single-phase transformers, performance acceptance, and factory quality verification.
Overseas power engineering projects: Containerized equipment for maritime export, temporary on-site testing stations, and mobile transformer testing and acceptance.
Small transformer mass-production workshops: Fully paperless, standardized, and low-threshold batch quality control testing.
Solving Industry Pain Points
Addresses the industry challenge of traditional small transformer testing—repeated disconnection and reconnection of wires, step-by-step operations, cumbersome procedures, and low testing efficiency—making it impossible to meet the demands of mass production.
Overcomes the reliance on multi-person operations, manual data calculation, and manual report generation in traditional testing modes, which result in high labor costs, significant errors, and limited production capacity.
Solves the problem of high operational thresholds for traditional testing equipment, dependence on professional technicians, long training periods, high labor costs, and personnel turnover impacting production.
Addresses the shortcomings of traditional high-voltage testing—lack of strong–weak current isolation, high risks associated with live operations, potential personal safety hazards, and insufficient workshop safety standards.
Resolves issues with traditional paper-based test records—prone to errors, data confusion, difficult storage, and lack of traceability—resulting in non-compliant reports that fail to pass international certifications.
Tackles the problem of generic testing equipment parameters failing to match small single-phase transformers—poor compatibility, inadequate testing accuracy, and inability to meet IEC international standards.
Core Product Value
The NKE-DTTS-AUTO/500 fully automatic distribution transformer testing system precisely focuses on testing scenarios for small single-phase distribution transformers, specifically addressing the challenges of standardized testing for models rated at 500 kVA and below, up to 36 kV. Its one-time wiring and fully automatic testing mode greatly simplifies workflows and shortens testing cycles, while its four-station single-operator design significantly reduces enterprise labor and training costs. The 0.05-class high-precision hardware configuration strictly adheres to IEC 60076 international standards, automatically generating compliant test reports and minimizing human error, helping products smoothly pass international certifications and overseas acceptance. The strong–weak current isolation design enhances workshop safety, and the fully paperless data management system enables traceable quality control. With support for personalized plan customization and containerized maritime deployment, it balances domestic mass-production testing needs with overseas project implementation requirements, providing small transformer manufacturers with an efficient, worry-free, and compliant one-stop factory acceptance testing solution.
Frequently Asked Questions (FAQ)
Q1: Which transformer specifications does the NKE-DTTS-AUTO/500 accommodate?
A: Exclusively compatible with single-phase pole-mounted and ground-mounted distribution transformers rated at 36 kV and below, with low-voltage ranges from 0.12 kV to 1.5 kV, impedance levels between 2% and 8%, and maximum capacities up to 500 kVA.
Q2: Does the equipment support fully automatic report generation?
A: Yes, with one-click automation completing all tests, automatically calculating results, and exporting factory acceptance reports without manual editing or preparation.
Q3: What are the equipment’s measurement accuracy and compliance standards?
A: Utilizes 0.05-class precision current transformers paired with Yokogawa WT500 or higher-grade power analyzers, strictly adhering to IEC 60076 and IEEE C57.12.90-2021 international standards.
Q4: Is it suitable for mass-production batch testing?
A: Yes, equipped with a four-station automated design, a single operator can complete batch tests, with low operational thresholds and suitability for small transformer factories conducting large-scale factory acceptance testing.
Q5: Does it support plan customization and overseas deployment?
A: Yes, supports overall testing plan and equipment parameter customization, and can be configured as a containerized unit suitable for maritime export and overseas on-site mobile testing.
Q6: Is the testing procedure complicated?
A: Extremely simple—only one wiring connection is needed, and a single button initiates fully automatic operation of all tests, eliminating the need for repetitive manual actions. Even beginners can quickly get started after basic training.
