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Partial Discharge Brochure
Partial Discharge Brochure
This document provides a comprehensive guide on partial discharge monitoring and diagnostic solutions for rotating machines, focusing on sensors for partial discharge measurements. It covers various types of sensors, installation procedures, and monitoring systems.
Partial discharge sensors are crucial for separating high-frequency partial discharge signals from line voltage. Common sensors include coupling capacitors, high-frequency current transformers, and antennas. These sensors must comply with international standards and provide signals within the appropriate frequency range.
Coupling capacitors are widely used for measuring partial discharges in rotating machines. They consist of a high voltage capacitor and a measuring impedance, defining the sensor's frequency range. Sparks Instruments' coupling capacitors are designed for industrial environments and meet international standards. They include built-in quadrupoles for over-voltage protection and synchronization with partial discharge detectors.
These transformers are used when high voltage capacitance is available, separating high-frequency signals from line frequency. They are suitable for installations where space is limited or in hazardous environments.
For large machines, it is recommended to install coupling capacitors at both phase exits and the neutral point. In hazardous areas, high-frequency current transformers like the HFTX-0017 are preferred. Surge capacitors can also be used for partial discharge measurements with modifications.
The document describes various monitoring systems, including the TMS-5041 and TMS-6141, which offer standalone and portable solutions for partial discharge analysis. These systems feature high-resolution displays, noise rejection technologies, and integration capabilities with SCADA systems.
Sparks Instruments provides complete installation kits, including safety termination boxes and necessary components for secure and efficient installation. The TB-004 safety termination box offers IP66 protection for indoor and outdoor use.
The document emphasizes the importance of proper sensor selection, installation, and monitoring to ensure effective partial discharge measurement and analysis in rotating machines.
The document provides technical details about the TMS-2000 system, focusing on its database server capabilities and noise rejection techniques. It outlines the system's architecture, including the use of a SQL-based database for storing measurement results and the integration of a web server for data access.
The TMS-2000 Database Server utilizes a SQL-based database, specifically Postgres SQL Server, to manage continuous measurement data from multiple systems. It supports database replication to combine data from different locations via VPN connections.
The system includes a TMS-2000 Data Server with replication services and multiple TMS-2000 Data Clients connected via Ethernet 100 Base TX. The architecture supports both single and multi-server applications, allowing for data access through web browsers.
The document mentions noise rejection methods, including filtering and gating, to enhance signal quality across measuring channels. Specific frequency ranges for noise rejection are provided, indicating the effectiveness of these techniques.
Sparks Instruments SA is the manufacturer, located in Rossens, Switzerland. Contact details include a website, email, phone, and fax number for further inquiries.
Sparks Instruments SA reserves the right to modify product specifications and information to improve product reliability and design.
Catalog excerpts
Partial Discharge Monitoring and Diagnosic Solutions for Rotating Machines
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Sensors for Partial Discharge Measurements General A Partial Discharge Sensor is used to separate the high frequency partial discharge signal from the line voltage and is in general a high pass filter in a frequency range several tenkilohertz up to several ten megahertz. Typically so called coupling capacitors are used, but other high frequency sensors as high frequency current transformers or antennas are available on the market. Whatever sensor is chosen, it must meet the requirements specified by the international standard and it must provide the partial discharge high frequency signal in a...
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Sensors for Partial Discharge Measurements Using Surge Capacitors for Partial Discharge Measurements Large generators are typically equipped with surge capacitors to protect the machine winding. Installing a coupling capacitor directly next to the surge capacitor would significantly reduce the measurement sensitivity. In case, the surge capacitors can be used to measure partial discharges by adding a high frequency current transformer on the ground lead. For this type of installation, the installation of the surge capacitor must be slightly modified, by insulating the body of the surge capacitor...
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Standalone Basic Continuous PD Monitoring TMS-5041 measuring channel. Partial discharge results are shown as 8-bit phase resolved partial discharge patterns offering 256 amplitude windows and 256 phase windows. The TMS-5041 is a lightweight easy operable partial discharge monitoring system mainly designed for standalone operation with a simple interface to a third party system or software. The TMS-5041 measures sequentially 4 Partial Discharge Channels, The system has a 4-20mA analogue output per channel, one common alarm relay output and Modbus RTU interface for the communication the scada system...
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Standalone Portable Partial Discharge Analyzer General Partial discharge measurements are often acquired non continuous in a defined interval of around 3 to 12 months based on the condition of the stator insulation. The TMS-6141 is a portable partial discharge analyser especially designed for this type of application. The light weight system weights less than 3.5kg and can be easily be transported within the plant and also whenever measurements shall be performed in remote areas. The optional TMS-9441 Multiplexer extends the portable analyser to a 16 channel partial discharge acquisition system....
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Standalone Extended Continuous PD Monitoring TMS-5141 system is available in an integrated wallmount enclsosure. The TMS-5141 is an online partial discharge monitoring system with extended functionalities. It measures simultaneously 4 partial discharge Channels, allowing enhanced partial discharge analysis as the system is able to distinguish automatically discharges between the channels as e.g. discharges between phases. The system has for each channel one 4-20mA and one alarm relay output and a Modbus RTU interface for the communication the scada system or a third party plant monitoring system....
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Standalone Extended Continuous PD Monitoring Local Display Bargraph Display Trend Display Realtime 4 Channel Oscilloscope Display Realtime 4 Channel PRPD Display TMS-5441 16-Channel System Whenever it is required to use more than the standard 4 partial discharge channels, the TMS-5441 is an extension of the TMS-5141 offering the same functionalities but with a build in 4x4 multiplexer at the input. The TMS-5441 is acquiring sequentially 4 channels simultaneous. Analog outputs and relay contacts are grouped together where on the Modbus RTU interface all data is available individually. The TMS-5441...
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Sparks Instruments SA reserves the right, without further notice, to change the product specifications and/or the information on this document to improve reliability, functions and design of the products. © 2011-2015, Sparks Instruments SA, All rights reserved. Sparks Instruments SA Route de Montena 85 1728 Rossens / Switzerland Web: www.sparksinstruments.com Email: [email protected] Phone: +41 (0)26 301 30 04 Fax: +41 (0)26 301 30 08 Worldwide Exclusive Sales Representative
Open the catalog to page 8All Sparks Instruments SA catalogs and technical brochures
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