DE10033868A1 - Transformer monitoring system has several sensors giving continuous status information - Google Patents

Transformer monitoring system has several sensors giving continuous status information

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Publication number
DE10033868A1
DE10033868A1 DE2000133868 DE10033868A DE10033868A1 DE 10033868 A1 DE10033868 A1 DE 10033868A1 DE 2000133868 DE2000133868 DE 2000133868 DE 10033868 A DE10033868 A DE 10033868A DE 10033868 A1 DE10033868 A1 DE 10033868A1
Authority
DE
Germany
Prior art keywords
insulation
determined
help
sensors
transformer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE2000133868
Other languages
German (de)
Inventor
Hossein Borsi
Ernst Gockenbach
Ulrich Hilleringmann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE2000133868 priority Critical patent/DE10033868A1/en
Publication of DE10033868A1 publication Critical patent/DE10033868A1/en
Withdrawn legal-status Critical Current

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/12Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing

Abstract

A transformer monitoring system has sensors at several points to measure temperature, water and gas content to provide continuous monitoring of the state of the insulation.

Description

Stand der TechnikState of the art

Verteilungstransformatoren und die Mehrzahl von Leistungstransformatoren werden kaum meßtechnisch überwacht. Die Verteilungstransformatoren mit geringer Leistung werden lediglich mit Hilfe von Hochspannungsschmelzsicherungen geschützt. Bei den Verteilungstransformatoren mit größerer Leistung und bei Leistungstransformatoren erfolgt der Schutz der Isolierung mit Hilfe von verschiedenen Schutzmaßnahmen wie thermischer Schutz, Überstrom- und Überspannungsschutz und Buchholz-Relais. Weiterhin gibt es die Möglichkeit mit Hilfe eines Hydran Sensors, der an den Transformatorkessel angebracht wird, einige gelöste Gase unter bestimmten Umständen nachzuweisen. Eine weitere Möglichkeit ist durch die Bestimmung der Menge und den Zeitpunkt des Auftretens sowie der Gasrate mit Hilfe eines neuen Systems zu ermitteln (Pat.). Darüber hinaus gibt es seit kurzem die Möglichkeit, den Lastzustand mit Hilfe von Temperaturmessung zu überwachen (Beitrag Tenbohlen).Distribution transformers and the majority of power transformers are hardly monitored by measurement. The distribution transformers with low performance are only with the help of High-voltage fuses protected. Both Distribution transformers with greater performance and at Power transformers are used to protect the insulation various protective measures such as thermal protection, overcurrent and Surge protection and Buchholz relays. There is also the possibility with the help of a Hydran sensor attached to the transformer tank will detect some dissolved gases under certain circumstances. A Another possibility is by determining the quantity and the time the occurrence and the gas rate with the help of a new system (Pat.). In addition, there has recently been the option of load status to monitor with the help of temperature measurement (contribution Tenbohlen).

Problemproblem

Alle anderen Parameter, wie der Wassergehalt, die Alterungsprodukte und die verschiedenen gelösten Gase in der Isolierung werden durch Probeentnahmen in großen Zeitabständen ermittelt, so dass eine kontinuierliche Überwachung und Bestimmung des Isolierungszustandes und aufbauend darauf eine Lastoptimierung nicht möglich ist. All other parameters, such as the water content, the aging products and the various dissolved gases in the insulation are sampled in large intervals, so that continuous monitoring and Determination of the insulation state and building on it Load optimization is not possible.  

Dem im Anspruch 1 angegebenen Verfahren liegt das Problem zugrunde, die verschiedenen Parameter zur Bestimmung des Isolierungszustandes von Transformatoren mit Hilfe geeigneter OFW Sensoren kontinuierlich zu erfassen und damit den Transformator zu überwachen, den Isolierungszustand zu bestimmen und eine Lastoptimierung und Serviceoptimierung zu erreichen.The method specified in claim 1 is based on the problem that various parameters for determining the insulation condition of Detect transformers continuously with the help of suitable SAW sensors and thus monitor the transformer, the insulation state too determine and achieve a load optimization and service optimization.

Verbesserungen gegenüber dem Stand der TechnikImprovements over the prior art

Die mit der Erfindung erzielten Verbesserungen gegenüber dem Stand der Technik bestehen insbesondere darin, daß durch den gezielten Einbau von geeigneten OFW Sensoren an verschiedenen Stellen von Transformatoren die notwendigen Parameter zur Bestimmung des Isolierungszustandes der Transformatoren kontinuierlich erfasst und daraus Schutzmaßnahmen, Last- und Serviceoptimierung abgeleitet werden.The improvements achieved with the invention over the prior art Technology consists in particular in that through the targeted installation of suitable SAW sensors at different locations on transformers necessary parameters for determining the insulation state of the Transformers continuously recorded and protective measures, load and Service optimization can be derived.

Claims (7)

1. Verfahren zur Überwachung der Isolierung, Bestimmung des Isolierungszustandes und Last- und Serviceoptimierung von Transformatoren mit Hilfe von OFW-Sensoren, dadurch gekennzeichnet, dass an verschiedenen Stellen im Transformatorkessel OFW-Sensoren eingebaut werden und mit Hilfe dieser Sensoren die Temperatur, die Feuchte, der Gasgehalt sowie weitere für die Beurteilung des Isolierungszustandes notwendigen Parameter kontinuierlich oder in Zeitabständen ermittelt werden.1. A method for monitoring the insulation, determining the insulation state and load and service optimization of transformers with the help of SAW sensors, characterized in that SAW sensors are installed at different points in the transformer tank and with the help of these sensors the temperature, the humidity, the gas content and other parameters necessary for assessing the insulation condition are determined continuously or at intervals. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass mit Hilfe von OFW-Sensoren die verschiedenen Parameter zunächst im Öl gemessen werden und daraus der Zustand von Papier- und Gesamtisolierung ermittelt wird.2. The method according to claim 1, characterized in that with the help of SAW sensors first measured the various parameters in the oil the condition of paper and overall insulation is determined becomes. 3. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Umgebungsbedingungen wie die Außentemperatur, Feuchte und Luftdruck mit erfaßt und gespeichert werden.3. The method according to claim 1, characterized in that the Ambient conditions such as the outside temperature, humidity and air pressure can be recorded and saved with. 4. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass aus den ermittelten Daten der Isolierungszustand des Transformators ermittelt wird und mit Hilfe der Temperaturen in den Hot-Spots, der Außenbedingungen und des Zustands der Isolierung ein optimales Lastprofil ohne Schädigung der Isolierung ermittelt wird.4. The method according to claim 1, characterized in that from the determined data the insulation state of the transformer is determined and with the help of the temperatures in the hot spots, the external conditions and the condition of the insulation an optimal load profile without damage the insulation is determined. 5. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass mit Hilfe der ermittelten Daten die notwendigen Servicemaßnahmen vorausgeplant werden.5. The method according to claim 1, characterized in that using the determined the necessary service measures in advance become. 6. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass mit Hilfe der ermittelten und der Grenzdaten eine Überwachung und ein Schutz des Transformators erfolgt. 6. The method according to claim 1, characterized in that using the and monitoring and protection of the Transformer.   7. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass weitere Daten von den Sensoren zur Überwachung des genutzt werden.7. The method according to claim 1, characterized in that further data can be used by the sensors to monitor the.
DE2000133868 2000-07-12 2000-07-12 Transformer monitoring system has several sensors giving continuous status information Withdrawn DE10033868A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2000133868 DE10033868A1 (en) 2000-07-12 2000-07-12 Transformer monitoring system has several sensors giving continuous status information

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2000133868 DE10033868A1 (en) 2000-07-12 2000-07-12 Transformer monitoring system has several sensors giving continuous status information

Publications (1)

Publication Number Publication Date
DE10033868A1 true DE10033868A1 (en) 2002-01-24

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DE2000133868 Withdrawn DE10033868A1 (en) 2000-07-12 2000-07-12 Transformer monitoring system has several sensors giving continuous status information

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Country Link
DE (1) DE10033868A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2253979A1 (en) * 2004-04-29 2006-06-01 Union Fenosa Distribucion, S.A. Monitoring incipient damage in power transformer, involves detecting incipient damages, then identifying transformer failure by correlating detected damages with mathematical models such as vibration and oil humidity models
CN100433206C (en) * 2004-04-07 2008-11-12 株式会社日立产机系统 Transformer monitoring system
EP2244089A1 (en) * 2009-04-24 2010-10-27 Josef Altmann On-line diagnostic and prediction of dielectric behavior of power transformers
RU2484486C2 (en) * 2011-08-26 2013-06-10 Общество с ограниченной ответственностью "АРГО-ЦЕНТР" Diagnostics method of technical state of power equipment

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100433206C (en) * 2004-04-07 2008-11-12 株式会社日立产机系统 Transformer monitoring system
ES2253979A1 (en) * 2004-04-29 2006-06-01 Union Fenosa Distribucion, S.A. Monitoring incipient damage in power transformer, involves detecting incipient damages, then identifying transformer failure by correlating detected damages with mathematical models such as vibration and oil humidity models
EP2244089A1 (en) * 2009-04-24 2010-10-27 Josef Altmann On-line diagnostic and prediction of dielectric behavior of power transformers
RU2484486C2 (en) * 2011-08-26 2013-06-10 Общество с ограниченной ответственностью "АРГО-ЦЕНТР" Diagnostics method of technical state of power equipment

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