OMICRON Monitoring Solutions

Transcription

1 OMICRON Monitoring Solutions Partial discharge monitoring of high voltage assets M/G

2 Extending the service life of high-voltage assets Why monitoring? Insulation degradation in critical high-voltage (HV) equipment can lead to failure. Monitoring helps to predict severe failure and to extend the service life of equipment. OMICRON monitoring technology across the complete asset life cycle In asset management there is a clear trend away from expensive time-based maintenance toward cost-effective, condition-based maintenance: > Continuous or periodic monitoring of HV equipment is an essential tool for effective maintenance management > Monitoring answers questions about the present condition of the equipment and its future performance > The large amount of real-time data gathered by monitoring systems can be used for precise insulation condition assessment > Effective comparison of historical data is enabled via an easy-to-use and extendable database solution > Exact knowledge of insulation state at any time saves money, as maintenance schedules can be specifically optimized and the service life of assets can be extended Temporary / Periodic Monitoring Solutions Continuous Monitoring Solutions Manufacturing Manufacturing Test Commissioning Commissioning Test T Monitoring can prevent serious damage to critical high-voltage assets Why partial discharge monitoring? Partial discharge (PD) phenomena are a consequence of local electrical stress concentration in electrical insulation. PD activity can lead to failure and serious consequent damage as well as to faults in critical elements of the power network. Therefore it is mandatory to identify the presence of PD activities and to monitor PD tendencies. PD is a widely-accepted measuring parameter for insulation diagnosis. PD measurements are specified for type, routine and on-site tests for most HV assets. The large variety of PD signals makes PD measurement and detection a challenging task. OMICRON monitoring systems employ advanced noise supression techniques for reliable PD source recognition. 2

3 Preventing Early Failure Ensuring Reliable Operation Extending Lifetime emporary Monitoring Periodic Condition-Based Monitoring Continuous Monitoring Why OMICRON monitoring technology? For more than 10 years, OMICRON has delivered PD measurement solutions for manufacturing and commissioning purposes. Now this leading-edge digital technology is also available for in-service monitoring applications. OMICRON solutions cover all requirements from periodic to continuous monitoring of HV apparatus. Their flexible, modular system design allows these solutions to be easily adapted to specific customer requirements for monitoring data analysis. Your benefits > Proven PD diagnostic technology now also available for periodic and continuous monitoring > Reliable and accurate PD monitoring results provide current state of insulation condition > Knowing insulation condition helps optimize asset management and investment planning > Optimized asset management saves money and extends reliable service life 3

4 OMICRON monitoring system components Asset Sensor Acquisition Unit Data Pre-Processing Signal Synchronization Trend Analysis HV assets monitored > HV Cables > Generators & Motors > Power Transformers > HV GIS/GIL OMICRON sensors are especially designed for the decoupling of PD signals on different HV assets. OMICRON offers a broad range of PD sensors. Inductive, high frequency current transformers (HFCT) are designed for PD detection on HV cable accessories like cross-bonding joints and terminations. Capacitive couplers of different rated voltages are available for PD monitoring on rotating machines. For power transformers, OMICRON offers robust tap adapters for different types of bushings. PD acquisition unit characteristics > Clear discrimination between PD and external interference and efficient separation of multiple PD sources using 3PARD and 3CFRD > Reliable fault localization and fault-type recognition > Wide bandwidth of PD measurements > Fully digital PD monitoring in one compact enclosure > Synchronous processing of PD signals > Designed for rough environments (IP67 enclosure) > Extremely reliable, maintenance free, no moving parts > Reliable power protection for long-term field application in substation and cable tunnel environments 4

5 Central Computer & Monitoring Software Fibre optic connection Backup Data Analysis Reporting Tool Alerting PD Source Determination Interface Expert Analysis Notification Web-client Central computer & monitoring software The monitoring software runs on a central computer. It can be directly accessed from the central computer or an other computer in the trusted network via the convenient web-based interace. The monitoring software is a management tool for system configuration, continuous data acquisition and archival, as well as for visualizing both real-time and archived measurement data. Separation of PD sources by 3CFRD Analyzed data provided by OMICRON monitoring systems helps utility maintenance teams and asset managers to make accurate decisions about asset life management based on comparable and reliable data. PD data is visualized and evaluated using highly sophisticated and unique OMICRON PD source separation techniques. 5

6 Dedicated support for your monitoring needs High-quality support at every stage of your project Our monitoring systems are not only a set of excellent system components and technology. It also includes the dedicated service we provide you. Our knowledged experts are working for you to support you in all stages of your monitoring project. We provide you with peace of mind while matching the actual needs of your high-voltage equipment over its operational lifetime. We start the implementation of your monitoring system by understanding your needs and challenges. With this input, the system can be designed according to your needs. Our team of specialists then installs the system for you on-site. During the commissioning of the system, its performance and measurement sensitivity are verified. You are then trained on how to use the system and take maximum advantage of its features. The measured data is stored, processed and visualized by the monitoring software. Our high-voltage experts are available to help you interpret and analyze the data. We can also provide you regular asset condition reports and recommendations for further action. Flexibility Project-specific monitoring system design to match your requirements Competence On-site monitoring system installation, calibration & commissioning Knowledge Customer training in system operation and data analysis 6

7 Monitoring project knowledge and expertise you can rely on > Evaluation of monitoring requirements > Project-specific monitoring system design > Integration of monitoring system into existing infrastructure > Installation, commissioning and calibration of the monitoring system > Monitoring system and data evaluation training > Data analysis and interpretation > High-voltage expert assistance > Worldwide customer service & hotline Availability Worldwide customer support, system upgrades & HW/SW maintenance Expertise Support in condition assessment and data evaluation 7

8 OMICRON is an international company serving the electrical power industry with innovative testing and diagnostic solutions. The application of OMICRON products allows users to assess the condition of the primary and secondary equipment on their systems with complete confidence. Services offered in the area of consulting, commissioning, testing, diagnosis and training make the product range complete. Customers in more than 140 countries rely on the company s ability to supply leadingedge technology of excellent quality. Service centers on all continents provide a broad base of knowledge and extraordinary customer support. All of this together with our strong network of sales partners is what has made our company a market leader in the electrical power industry. The following publications provide further information on the solutions described in this brochure: OMS 605 Portable PD Monitoring System for High-Voltage Assets OMS 600 Continuous PD Monitoring System for Rotating Machines MONTRANO Continuous Monitoring System for Power Transformers Continuous PD Monitoring System for High-Voltage Cable Systems For more information, additional literature, and detailed contact information of our worldwide offices, please visit our website. OMICRON L2290, April 2015 Subject to change without notice.