Updates from the field.
Knowledge for every test.
Company news, engineering perspectives and practical knowledge from the high-voltage testing industry.
Good News | Jiangsu Xinya Successfully Passes the 2025 Provincial Review for Specialized, Refined, Distinctive and Innovative SMEs
Recently, following a rigorous review and public announcement, Jiangsu Xinya successfully passed the 2025 provincial review for specialized, refined, distinctive and innovative SMEs! This recognition is authoritative acknowledgment of our technical strength, professional capabilities and development potential, and marks a new stage in the company's high-quality development focused on specialization, refinement, differentiation and innovation. “Specialized, Refined, Distinctive and Innovative” is a major national initiative to help SMEs strengthen their core competitiveness and pursue specialization,
Read the storyGood News | Jiangsu Xinya Successfully Passes the 2025 Provincial Review for Specialized, Refined, Distinctive and Innovative SMEs
Recently, following a rigorous review and public announcement, Jiangsu Xinya successfully passed the 2025 provincial review for specialized, refined, distinctive and innovative SMEs! This recognition is authoritative acknowledgment of our technical strength, professional capabilities and development potential, and marks a new stage in the company's high-quality development focused on specialization, refinement, differentiation and innovation. “Specialized, Refined, Distinctive and Innovative” is a major national initiative to help SMEs strengthen their core competitiveness and pursue specialization,
Ready to Soar, Shining into 2024 | Jiangsu Xinya's 2023 Annual Celebration and Awards Ceremony Concludes Successfully
Ready to Soar, Shining into 2024 | Jiangsu Xinya's 2023 Annual Celebration and Awards Ceremony Concludes Successfully
A Fresh Start for the New Year, a Strong Start to Everything | We're Back at Work
A Fresh Start for the New Year, a Strong Start to Everything | We're Back at Work
Hard Work Builds Experience; Action Shapes the Future | Jiangsu Xinya Holds Its Year-End Review Meeting
To carefully review and summarize work completed in 2023, clarify plans for 2024, further align thinking, build consensus and deepen understanding, Jiangsu Xinya held its 2023 year-end review meeting on the afternoon of January 24. Company leaders and department heads attended. At the meeting, General Manager Chen Zhongwei led all department heads in an in-depth review through an analysis of the year's...
Building Shared Strength for Continued Growth | Jiangsu Xinya Helps a Tianjin Customer Upgrade and Optimize Equipment
Equipment is the foundation of a company's production. As the testing industry continues to evolve, more and more customers are prioritizing upgrades to their partial discharge detection equipment. Continuous upgrades, improved performance, greater production efficiency and product quality are key to business development. We recently helped a company in Tianjin complete renovations to its partial-discharge shielded room and upgrade its power-frequency corona-free test system. &n
Warmer Service, Deeper Expertise | Jiangsu Xinya Is Installing a Shielded Room and Commissioning Equipment for a Customer
Recently, we received a customer request for shielded-room installation and equipment commissioning. Jiangsu Xinya's after-sales service team responded immediately and arrived at the customer's site as agreed. Before new equipment departs, our professional technicians inspect it. Once the equipment reaches the customer's site, our after-sales staff arrive promptly to ensure its safe delivery. Our after-sales staff...
Overcoming Challenges Through Independent Innovation | Another Overseas Project Successfully Completed
Recently, two YXY-D330 intelligent withstand-voltage test control systems independently developed by our company completed final assembly and will cross the Pacific before the holiday to be delivered to our customer in Mexico. This project took just over a month. During that time, from customer discussions through R&D design to finalizing the solution, we encountered many challenges. Faced with the high standards and strict requirements of overseas customers, the R&D team and project participants...
Steadfast Commitment, Consistent Progress | Jiangsu Xinya Successfully Delivers Equipment to a Testing Center
Recently, the impact-voltage test equipment, withstand-voltage and partial-discharge test equipment, temperature-rise high-current test equipment, and partial-discharge shielded room that we supplied to a testing center were successfully delivered and put into service. Equipment arrival. Installation and commissioning. The project was delivered successfully and service was completed to our satisfaction. We would like to thank the customer for trusting our products and supporting our services.
The 2023 EP Shanghai International Electrical Power and Electrical Engineering Exhibition Concludes Successfully—Thank You from Jiangsu Xinya; See You Next Year!
The three-day 2023 EP Shanghai International Electrical Power and Electrical Engineering Exhibition has just concluded. Jiangsu Xinya took part with its independently developed digital partial discharge detector. Let's look back at some highlights from the event! At the exhibition, we presented our independently developed partial discharge detector and accessories, as well as system solutions for lightning impulse, temperature-rise and performance testing for power grid companies, electric power research institutes, metrology centers, and the switchgear, transformer and instrument transformer industries.
Growing Toward the Sun, Following the Light | Jiangsu Xinya's 2023 Autumn Team-Building Trip to Hangzhou
Golden October is a season of harvest and celebration. The autumn skies are clear and the sunshine is just right. During this beautiful osmanthus-scented season, Jiangsu Xinya resumed its team-building travel benefit after the three years of the COVID-19 pandemic, both to strengthen team cohesion and unity and to enrich everyone's cultural life beyond busy work. On October 28–29, all Jiangsu Xinya employees traveled to Hangzhou, renowned as a “paradise on earth,” for a two-day
Second Meeting of the Drafting Working Group for the National Metrology Technical Specification 'Impulse Voltage and Current Measurement Systems—Part 4: Method for Evaluating Calculation Errors in Software for Impulse Testing' Held at Jiangsu Xinya
On November 14–15, 2023, the second meeting of the drafting working group for the national metrology technical specification 'Impulse Voltage and Current Measurement Systems—Part 4: Method for Evaluating Calculation Errors in Software for Impulse Testing' was held at our company. Participants included NARI Group Corporation, the National High-Voltage Metrology Station, State Grid Shanghai Municipal Electric Power Company, the National Institute of Metrology, China, the Electric Power Research Institute of State Grid Xinjiang Electric Power Co., Ltd., and the Electric Power Research Institute of State Grid Chongqing Electric Power...
United in Purpose, Creating the Future Together | Harbin Engineering University Alumni Office Visits Jiangsu Xinya
United in Purpose, Creating the Future Together | Harbin Engineering University Alumni Office Visits Jiangsu Xinya
On Duty During the Mid-Autumn Festival and National Day | Working Through the Holiday, Devoted to Our Customers
In 2023, the Mid-Autumn Festival ran straight into National Day, giving people across China an extended eight-day holiday. Everywhere was filled with the festive warmth of family reunions and celebrations marking the 74th anniversary of the founding of the People's Republic of China. At Jiangsu Xinya, a group of employees put customers' urgent concerns first, anticipated what they needed and helped where they could. They gave up holiday time with their families, accommodated customers' schedules, went to the front lines at customer sites and did their utmost to serve
Xinya Classroom | Types of Impulse High-Voltage Dividers
A voltage divider is one of the main components commonly used in an impulse measurement system. Its function is to convert impulse high voltages of up to hundreds of thousands or millions of volts into voltages that can be measured by oscilloscopes and other recording instruments. Voltage dividers are mainly divided into three types: resistive, capacitive and resistive-capacitive dividers. 1. Resistive voltage dividers. Because of dynamic-response requirements, they should be designed to be as nearly non-inductive as possible.
Deliveries Continue Without Pause; Giving Our All for Customers
Deliveries Continue Without Pause; Giving Our All for Customers
Jiangsu Xinya Partial-Discharge Shielded Room Operating Procedure
Jiangsu Xinya is a specialist manufacturer of partial-discharge shielded rooms. Customers are welcome to call 0514-87346289 for more information!
Highlights from the Exhibition | Jiangsu Xinya Wraps Up a Successful 2023 Asia Power Exhibition
The 6th Asia Electric Power and Smart Grid Exhibition and the 1st Asia New Power Systems and Energy Storage Exhibition (together known as the Asia Power Exhibition) were held in grand style in Guangzhou from June 8 to 10, 2023. “Track trends, seize opportunities, win the future.” The Asia Power Exhibition brought together well-known industry brands from China and abroad and received strong support from more than 80 industry associations and professional...
Jiangsu Xinya Intelligent Power-Frequency Withstand-Voltage/Partial-Discharge Test System Operating Procedure
Digital integrated insulation-test control console. Power-frequency test transformer + protective resistor + capacitive voltage divider. Jiangsu Xinya is a specialist manufacturer of power-frequency withstand-voltage/partial-discharge test system equipment. We independently develop and manufacture a wide range of partial-discharge test systems in a full range of models for diverse applications. Customers are welcome to call 0514-87346289 for more information!
Jiangsu Xinya Lightning Impulse Test System: Full-Wave Test Operating Procedure
Jiangsu Xinya is a specialist manufacturer of lightning impulse test system equipment. We independently develop and manufacture a wide range of lightning impulse test systems in a full range of models for diverse applications. Customers are welcome to call 0514-87346289 for more information!
Commissioning Completed for a Lightning Impulse Test System for a Jiangsu Customer
A 200kV/20kJ lightning impulse test system ordered by a Jiangsu customer has completed commissioning and is ready for shipment. Lightning impulse test systems are used for full-wave, chopped-wave and steep-front wave tests on high-voltage electrical apparatus and other equipment under standard lightning impulse voltages. The system uses intelligent dual-screen control, automatic operation and digital waveform analysis to ensure waveform consistency during continuous automatic testing. We provide the most suitable solution, technical support and answers to questions based on the customer's needs
On the Exhibition Floor | Jiangsu Xinya Live at the 2023 China Electrical Testing Technology Exchange Annual Conference
On May 18, the 2023 China Electrical Testing Technology Exchange Annual Conference was successfully held in Baoding, Hebei. This influential power-technology exchange event in Central China brought the industry together to create business opportunities. The annual conference invited many well-known companies and power experts to discuss the development and trends of China's power industry and actively promote the healthy development of the power sector in Central China. Jiangsu Xinya was invited to participate
On-Site Acceptance Completed for Ring Main Unit Testing Equipment for a Shandong Customer
A Shandong customer ordered a set of ring main unit testing equipment from our company, and on-site acceptance has been completed.
Commissioning Completed for an Export CT/PT Withstand-Voltage and Partial-Discharge Test System
A CT/PT withstand-voltage and partial-discharge test system ordered by an overseas customer has completed commissioning and is ready for shipment.
Jiangsu Xinya's Annual Gala Concludes Successfully—United in Purpose, Writing a New Chapter for 2023
As the Year of the Tiger passes, the cold winds depart; as the Year of the Rabbit approaches, good fortune arrives. We journeyed together through 2022. With hope for the future, we gather here in the new year to look back and look ahead. Let's revisit the highlights of Jiangsu Xinya's annual gala! 1. United in purpose, planning a new chapter. The past year brought a raging pandemic and a sluggish economy, but neither could stop our progress. At the start of the annual gala, General Manager Chen Zhongwei delivered a speech. Mr. Chen first led everyone in reviewing...
On-Site Acceptance Completed for a Digital Withstand-Voltage and Partial-Discharge Test System for a Suzhou Customer, Jiangsu
A customer in Suzhou, Jiangsu, ordered a digital withstand-voltage and partial-discharge test system from our company, and on-site acceptance has been completed. The intelligent integrated control system consists of a digital partial-discharge detection system and an integrated digital withstand-voltage test control console. A single computer monitors and controls these two digital modules. The host computer contains one monitoring software package, while the lower computer contains three embedded software packages. The system can connect to MES or ERP systems.
Celebrating a Successful Conclusion of the China Electrical Equipment Industry Association High-Voltage Switchgear Branch's 2022 Meeting
The High-Voltage Switchgear Branch of the China Electrical Equipment Industry Association met successfully in Changzhou, Jiangsu Province, from December 22 to 24, 2022. Relevant leaders and experts attended and gave presentations on domestic and international economic conditions and industry topics of interest to businesses. The meeting had three parts: (1) the branch's 8th Council, 5th Meeting, whose main agenda was to review the 2021 work summary and 2022 work plan; (2) the High-Voltage Switchgear Branch Members' General...
Four-Sector Salon with the Provincial Science and Technology Deputy-Mayor Delegation, Science and Technology Entrepreneurs, Industry Professors and Corporate Science and Technology Vice Presidents Concludes Successfully
On November 24, the Four-Sector Salon with the Science and Technology Deputy-Mayor Delegation, science and technology entrepreneurs, industry professors and corporate science and technology vice presidents was held in Yangzhou. The event was an important part of the province-wide training course for heads of the Science and Technology Deputy-Mayor Delegation, organized to broaden their perspectives and exchange experience in industry-university-research collaboration. Zhu Jun, head of the delegation in Zhenjiang New District and Deputy Director of the Science and Technology Office at Jiangsu University, organized experts from the delegation and science and technology entrepreneurs,
Yangzhou University Graduate School Leaders Visit Jiangsu Xinya for a Research Survey—'Jiangsu Provincial Graduate Student Workstation' Activities Conclude Successfully
On December 8, 2022, a delegation including Wang Li, Deputy Dean of the Graduate School of Yangzhou University, and Chen Ting, Director of the Graduate School's Professional Degree Education Office, visited Jiangsu Xinya High Voltage Testing Equipment Co., Ltd. for a research survey of the Jiangsu Provincial Graduate Student Workstation. Professor Zhu Jinrong, the workstation's academic adviser; General Manager Chen Zhongwei; and Minister Qi Xue welcomed the delegation and joined the survey. A Jiangsu Provincial Enterprise Graduate Student Workstation is established and funded by enterprises, and...
Jiangsu Xinya Participates in Drafting a National Metrology Technical Specification on Error Evaluation for Software Used in Impulse Calculations
The High-Voltage Metrology Subcommittee of the National Electromagnetic Metrology Technical Committee issued a notice on establishing drafting working groups for two national metrology technical specifications, including 'Method for Evaluating Sensor Characteristics for UHF Partial-Discharge Testing.' Jiangsu Xinya High Voltage Testing Equipment Co., Ltd. was the only private technology enterprise in the working group participating in drafting the national metrology technical specification 'Impulse Voltage and Current Measurement Technology—Part 4: Method for Evaluating Calculation Errors in Software for Impulse Testing'...
Jiangsu Xinya Named a 2022 Specialized, Refined, Distinctive and Innovative SME in Jiangsu Province and Yangzhou
Recently, the second batch of Jiangsu Province's 2022 list of specialized, refined, distinctive and innovative SMEs was officially announced, with 88 Yangzhou SMEs named. Building on our earlier recognition as a municipal-level specialized, refined, distinctive and innovative SME, this selection marks a solid step forward and shows that our company has reached a higher level in its innovation and development. “Specialized, refined, distinctive and innovative” refers to specialization, refinement and differentiation
Jiangsu Xinya's 2022 Winter Team-Building Event—United in Purpose, Embarking on a New Journey
After the harvest season of September and October, the Administration Department of Jiangsu Xinya specially organized an in-depth team-building activity for all employees on December 3, 2022, to enrich their leisure time beyond busy work, help them relax, encourage communication and strengthen team cohesion. The winter team-building event concluded successfully. Beyond their busy and demanding work, all Jiangsu Xinya employees took part in
Jingjiang Instrument Transformer Intelligent Withstand-Voltage and Partial-Discharge Test System
Jingjiang Instrument Transformer Intelligent Withstand-Voltage and Partial-Discharge Test System
Hebei Shenke Partial-Discharge Shielded Test Room and Withstand-Voltage/Partial-Discharge Equipment
Hebei Shenke Partial-Discharge Shielded Test Room and Withstand-Voltage/Partial-Discharge Equipment
Xiamen Dayi Mutual Intelligent Withstand-Voltage and Partial-Discharge Test System and R&D Shielded Room
Xiamen Dayi Mutual Intelligent Withstand-Voltage and Partial-Discharge Test System and R&D Shielded Room
Shenzhen Friendcom Complete Test System
Shenzhen Friendcom Complete Test System
Partial-Discharge Testing of Instrument Transformers
In our previous issue, we briefly introduced the test standards for partial discharge in instrument transformers. Xinya Classroom | Test Standards for Partial Discharge in Instrument Transformers. In this issue, we discuss how partial-discharge testing is conducted on instrument transformers, as well as partial discharge in current and voltage transformers...
Jiangsu Xinya's 2020 Team-Building Trip Concludes Successfully!
In golden October, amid busy work, Jiangsu Xinya organized a team-building trip for all employees from October 24 to 25 to strengthen communication among employees, enhance team spirit and awareness, and help everyone relax and enjoy time together. This time, we headed straight for a famous scenic
Remembering Our Roots and Thanking Every Customer Who Has Been with Us!
Since Jiangsu Xinya was established in September 2009, its 11 years of hard work and progress would not have been possible without the support and trust of our many customers. The 11-year journey through challenges has witnessed Xinya's growth, progress and development! Xinya employees will always be grateful; we are grateful
The 2020 Shanghai EP Exhibition Concludes Successfully!
From December 3 to 5, 2020, the Shanghai International Electric Power and Electrical Engineering Exhibition was held as scheduled at the Shanghai New International Expo Centre. Jiangsu Xinya exhibited as planned in China Area A, Hall N3, Booth 3L62. At our booth, the technical team warmly and professionally introduced products to visitors,
Xinya Classroom | Test Standards for Partial Discharge in Instrument Transformers
Partial discharge is often affected by many factors and has low reproducibility. As a result, errors in partial-discharge testing are much greater than in other high-voltage tests. To improve test accuracy, test personnel must strictly follow national standards.
Jiangsu Xinya | Another Invention Patent Joins Our Portfolio: Withstand-Voltage Burn-In Control Test System!
Jiangsu Xinya | Another Invention Patent Joins Our Portfolio: Withstand-Voltage Burn-In Control Test System!
Celebrate the Nation, Reunite with Family | Xinya Wishes You a Happy National Day and Mid-Autumn Festival!
Jiangsu Xinya National Day and Mid-Autumn Festival holiday schedule. According to the national holiday arrangements, Jiangsu Xinya's schedule is as follows: September 27 and October 10 are regular workdays. The holiday runs from October 1 through October 8, and regular work resumes on October 9. Notes: 1. Please make sure to do so before the holiday ...
Xinya Classroom | Research on Partial Discharge Under DC Voltage
Xinya Classroom: Research on partial discharge under DC voltage. I. Introduction to DC partial discharge. The use of partial-discharge methods to assess the insulation condition of AC high-voltage equipment has attracted widespread attention and made significant progress, with some findings already applied in engineering.
Xinya Classroom | An Introduction to the Various Waveforms of Impulse Voltage Generators
An impulse voltage generator is a high-voltage generator that produces pulse waves. It is used to study the insulation performance of electrical equipment subjected to atmospheric overvoltages (lightning). The destructive effect of an impulse voltage depends not only on its waveform and amplitude, but also on its waveform steepness. Current impulse voltage generators in China can produce eight types of impulse waveforms. Here is a brief introduction.
A Brief Analysis of Transformer Temperature Rise and Its Permissible Range
A transformer's temperature rise is the difference between its temperature and the surrounding air temperature. Among the many factors that affect a transformer's service life, temperature causes insulation aging and has the greatest impact. Heat is not distributed evenly inside a transformer, so temperatures vary considerably from one part to another. The permissible temperature rise specifies the allowable increase in temperature of each part when the transformer is under rated load.
What Are the Dangers of Replacing Copper with Aluminum in Transformers?
Investigations into the causes of multiple power accidents have found that the practice of replacing copper with aluminum in distribution transformers continues despite repeated prohibitions. Because this practice is difficult to detect, it is hard to identify from the finished product's appearance or terminals after manufacturing, and the tests required by current standards may not reveal it. In addition, lifting the core for a teardown inspection is destructive, difficult to carry out, and uneconomical.
Electrical Grounding Standards and Key Grounding Parameters
Electrical grounding standards. 1. Scope: This standard specifies grounding requirements for electrical lines in the power systems of production and business units, including new construction, expansions, maintenance and repair, renovation, office areas, and employee dormitories. 2. Terms and definitions: Electrical systems use protective grounding, protective neutral grounding, repeated grounding, functional grounding, and other protection methods.
Jiangsu Xinya Shows You How to Identify a Transmission Line's Voltage at a Glance
Have you ever been on a high-speed train, seen the huge transmission towers outside, and known only that their voltage level is high without knowing exactly how high? Xinya can show you how to identify a transmission line's voltage at a glance. Here's a summary for anyone with the same question.
42 Questions Every Qualified Electrician Should Know
Electricians work in many fields, such as maintenance, operations, installation, and commissioning. Whatever the specialty, the fundamentals of electrical work remain the same. Do you still remember them? It's time for a Q&A. 1. What are electric charge, current, voltage, resistance, a circuit, and electric power?
A Deep Dive: The 2020 New National Standard for Switchgear Assemblies, GBT3906-2020/3.6kV-40.5kV AC Metal-Enclosed Switchgear
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Xinya Service | Today's Service, Tomorrow's Market
On June 23, our technical specialists visited a customer to provide on-site commissioning services for our products, ensuring that the customer's production tasks could be completed on schedule! Our specialists are commissioning a power-frequency withstand-voltage and partial-discharge test system, a lightning-impulse test system, and other equipment.
Knowledge Boost | Distance Protection Explained in One Article
What is distance protection? Simply put, it is a protection device that responds to the distance (or impedance) between a fault point and the location where the protection is installed, and determines its operating time according to that distance. When the short-circuit point is near the protection installation point, the measured impedance is low and the operating time is short; when it is farther away, the measured impedance increases and the operating time becomes longer. This ensures selective isolation of the faulted line.
Arc-Quenching Principles in Switching Devices
I. The arc phenomenon. 1. An electric arc is a discharge phenomenon in which energy is concentrated, temperature is very high, and brightness is intense. For example, when a 10kV oil circuit breaker interrupts a current of 20kA, the arc power can reach more than 10000kW, causing intense physical and chemical changes in the medium in and around the arc.
Maintenance Guide for the Digital Withstand-Voltage and Partial-Discharge Control System
Maintenance Guide. Maintenance of the YXY-D630 Intelligent Integrated Insulation Test Control System (Cabinet). 01 Daily maintenance: ① Visual inspection: remove dust from inside the cabinet and check that the internal control wires are making good contact. ② Panel-button inspection: check the status of the indicator lights and buttons on the panel. ③ Control-board inspection: check that the control-board indicators are flashing normally.
Product Introduction: Partial-Discharge Shielded Rooms
Preface: As the power industry has developed and matured over many years, the quality requirements for equipment operating on the grid have continued to rise. High-voltage electrical-equipment manufacturers are continually improving their production and test conditions. In recent years, more and more manufacturers have begun building partial-discharge shielded test rooms—not only to improve the long-term operating quality of their products, but also as a reflection of standardized and people-oriented modern enterprise management.
Partial-Discharge Detection Methods
Overview of partial-discharge detection: Based on the various physical phenomena that occur during partial discharge, two major categories of measurement methods have been developed. 1. Electrical measurement methods: the three methods used in engineering are the radio-influence voltage method (RIV), the pulse-current method (ERA), and the ultra-high-frequency electromagnetic-wave method. 2. Non-electrical measurement methods.
How to Perform Pulse Calibration on the XYPD-02D Digital Partial Discharge Detector
Detailed illustrated operating instructions. 1. Product structure. 1. Display: 15-inch true-color TFT LCD with industrial-grade high brightness; display resolution: 1024×768; voltage value displayed on a 4-digit digital tube. 2. External interfaces: USB port; power port; 2 signal input ports; ground terminal; external sync signal input terminal; RJ45 port; RS232 port.
An Introduction to the Two-Station Digital Arrester Test System
This digital test system is used to verify the insulation level of arresters rated at 35kV and below under power-frequency high voltage. It can automatically perform power-frequency withstand-voltage, partial-discharge, and leakage-current tests. The system's measurement and control section runs in a Windows 10 environment and communicates via Ethernet.