长园科技集团股份有限公司
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Company Introductio

CYG Contron Monitoring Technology (Nanjing) Co., Ltd., a wholly-owned subsidiary of CYG Contron Power Safety Technology Co., Ltd. under Changyuan Technology Group Ltd.(Stock abbreviation: Changyuan Group), is a specialized, refined, unique and innovative enterprise focusing on the field of industrial safety, the field of digital and intelligent condition monitoring and fault diagnosis and early warning of power equipment, integrating R&D, design, manufacturing, sales and service.

The company is located in Jiyin Industrial Innovation Park, Jiangning District, Nanjing. Its product portfolio includes oil chromatographs, digital meters, passive wireless temperature sensors, partial discharge monitors, and battery monitoring systems, along with live detection services. These solutions are widely applied in smart grids, intelligent power generation, rail transit, IoT communications, petroleum and petrochemicals, as well as industrial and commercial enterprises such as factories and mines.

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The company is committed to leveraging science and technology to drive development and provide high-tech products that meet customer needs and expectations. Over 70% of our technicians hold a bachelor’s degree or higher. We have 15 authorized patents, 9 software copyrights, 23 authoritative test reports, and independent R&D centers in Nanjing, Zhuhai, and Xi'an.

By leveraging CYG’s large manufacturing center in Zhuhai and the production base in Nanjing, we can respond promptly to customized user requirements. Supported by the CYG CONTRON customer service network across 32 provinces and regions, we provide 24/7 rapid response and continuous quality improvement services.

In recent years, the company has closely followed the group’s development pace, continuously enhancing its core competitiveness to deliver better products and services worldwide. Looking ahead, we will continue our mission of “empowering global manufacturing to be smarter and more efficient, and promoting safer and more convenient energy utilization”, contributing significantly to the global power, energy Internet, and industrial safety sectors.


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Undergraduate staff
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Authorized patents
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Authoritative test report

Honors and Qualifications

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Qualification Certificate
15
Patent Certificate
9
Software Copyright
10
Test Report
Qualification Grade Certificate
Qualification Grade Certificate
Certificate of Specialized, Refined, Unique and Innovative Small and Medium-sized Enterprise
Certificate of Specialized, Refined, Unique and Innovative Small and Medium-sized Enterprise
Environmental Management System Certification Certificate
Environmental Management System Certification Certificate
Occupational Health and Safety Management System Certification Certificate
Occupational Health and Safety Management System Certification Certificate
Quality Management System Certification Certificate
Quality Management System Certification Certificate
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SF6 Gas Leakage Quantitative Alarm System
SF6 Gas Leakage Quantitative Alarm System
SF6 Gas Leakage Quantitative Alarm System Host Device
SF6 Gas Leakage Quantitative Alarm System Host Device
Transformer Partial Discharge Online Monitoring System Based on 4G Communication Mode
Transformer Partial Discharge Online Monitoring System Based on 4G Communication Mode
Transformer Oil Chromatography and Micro-Water Online Monitoring System
Transformer Oil Chromatography and Micro-Water Online Monitoring System
Transformer Oil Chromatography Degassing Device
Transformer Oil Chromatography Degassing Device
Wide-Temperature, Long-Life, Wireless Communication Smart Sensor
Wide-Temperature, Long-Life, Wireless Communication Smart Sensor
Strong Magnetic Adsorption Switchgear UHF Partial Discharge Sensor
Strong Magnetic Adsorption Switchgear UHF Partial Discharge Sensor
New Wireless Temperature Online Monitoring Device
New Wireless Temperature Online Monitoring Device
New Circulating Transformer Oil-Gas Separation Device
New Circulating Transformer Oil-Gas Separation Device
A new type of vacuum degassing device
A new type of vacuum degassing device
Multi-Channel Temperature Measurement and Control Plug for Oil Chromatography Online Monitoring
Multi-Channel Temperature Measurement and Control Plug for Oil Chromatography Online Monitoring
Automatic Identification Method for Gas Chromatography Peaks in Online Monitoring of Dissolved Gases in Oil
Automatic Identification Method for Gas Chromatography Peaks in Online Monitoring of Dissolved Gases in Oil
Online Fully Automatic Oil Filter
Online Fully Automatic Oil Filter
Transformer Insulation Condition Partial Discharge Online Monitoring Device
Transformer Insulation Condition Partial Discharge Online Monitoring Device
Isolation Method and Circuit for Electronic Transformer Signal Acquisition
Isolation Method and Circuit for Electronic Transformer Signal Acquisition
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GIS Partial Discharge Online Monitoring Software V1.0
GIS Partial Discharge Online Monitoring Software V1.0
PRS7170 Substation Monitoring System Database Configuration Tool Software V1.0
PRS7170 Substation Monitoring System Database Configuration Tool Software V1.0
PRS7170 Transformer Dissolved Gas in Oil Online Monitoring Software V1.0
PRS7170 Transformer Dissolved Gas in Oil Online Monitoring Software V1.0
PRS7177 Power Quality Online Monitoring Display Software V1.0
PRS7177 Power Quality Online Monitoring Display Software V1.0
SE2000 System of Online Monitoring Device for Gases in Transformer Oil V1.0
SE2000 System of Online Monitoring Device for Gases in Transformer Oil V1.0
SE3000 System of Online Monitoring Device for Gases in Transformer Oil V1.0
SE3000 System of Online Monitoring Device for Gases in Transformer Oil V1.0
TH3015 Partial Discharge Online Monitoring Software V1.0
TH3015 Partial Discharge Online Monitoring Software V1.0
Arrester and SF6 Gas Online Monitoring Software V1.0
Arrester and SF6 Gas Online Monitoring Software V1.0
Oil Chromatography and Core Micro-Water Integrated Online Monitoring Software V1.0
Oil Chromatography and Core Micro-Water Integrated Online Monitoring Software V1.0
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BM3018 Battery Online Monitoring System-Type Test
BM3018 Battery Online Monitoring System-Type Test
DN3000 Intelligent Terminal for Power Quality Monitoring-Type Test
DN3000 Intelligent Terminal for Power Quality Monitoring-Type Test
SE3000 Dissolved Gas in Oil Online Monitoring Device (A1 level) - Type Test
SE3000 Dissolved Gas in Oil Online Monitoring Device (A1 level) - Type Test
TH3011 SF6 Digital Density Meter-Commissioned Test
TH3011 SF6 Digital Density Meter-Commissioned Test
TH3018 Core Grounding Online Monitoring Device - Performance Test
TH3018 Core Grounding Online Monitoring Device - Performance Test
WS1525 Surge Arrester Digitized Leakage Current Remote Meter - Commissioned Test
WS1525 Surge Arrester Digitized Leakage Current Remote Meter - Commissioned Test
WS1713-AT Intelligent Three-in-One Sensor - Performance Test
WS1713-AT Intelligent Three-in-One Sensor - Performance Test
WS1713-H Intelligent High Frequency Current Sensor - Performance Test
WS1713-H Intelligent High Frequency Current Sensor - Performance Test
WS1713-HT Switchgear Local Discharge Fusion Terminal - Performance Test
WS1713-HT Switchgear Local Discharge Fusion Terminal - Performance Test
TH3015 GIS Ultra-high-frequency Partial Discharge Monitoring Device - Sample Test
TH3015 GIS Ultra-high-frequency Partial Discharge Monitoring Device - Sample Test
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