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Motor protection​

Almost all industries use motors and these require unique functions to ensure they have sufficient protection. Furthermore, it is critical that a trip happens during normal operation so the process isn’t interrupted.

Generation protection​

In all parts of the network, there are a few fundamental protection schemes which are used to protect the network, i.e., overcurrent and overvoltage.

Generation protection​

In all parts of the network, there are a few fundamental protection schemes which are used to protect the network, i.e., overcurrent and overvoltage.

Transformer protection​

The power transformer is the most valuable asset in the substation and therefore rigorous protections schemes have been developed to both protect it and to keep the network up and running.

Busbar protection​

The busbar is the extension cord of the substation where the energy is distributed to several different branches. The protection of this can be complex.
DER
Distributed Energy Resources - Wind
Large-scale wind farms, off-shore and on-shore, are connected at medium voltage levels to the grid and their protection is relatively straightforward. However Self-powered relays are common in this area and create unique testing challenges.
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DER
Distributed Energy Resources - Solar
The protection functions of solar farms may seem simple, however they must be well maintained in order to ensure that they are at optimal functionality. Tests focused on frequency, following the IEC 60255-181 standard, are crucial.
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BP
Busbar Protection
The busbar is the extension cord of the substation where the energy is distributed to several different branches. The protection of this can be complex.
Step 7 of 10
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Digital Substation​
IEC 61850 requires specialised solutions to effectively verify that the digital substation is properly configurated. GOOSE and Sampled Values are closely related to protection testing.
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General Protection​
In all parts of the network, there are a few fundamental protection schemes which are used to protect the network, i.e., overcurrent and overvoltage.
Line Protection
Overhead lines and cables transport energy over long distances. These are the highways of the power grid and, as such, need to be protected.
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Motor Protection
Almost all industries use motors, and these require unique functions to ensure they have sufficient protection. Furthermore, it is critical that a trip happens during normal operation, so the process isn’t interrupted.
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Power Generation Protection​ - Nuclear
In nuclear power plants, there are many aspects to consider for a preventive maintenance program. Specifically those related to environmental safety, and those that ensure a stable network; both aspects make protection schemes rather complex.
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Power Generation Protection - Hydro​
In large-scale generating stations such as hydropower, large assets are high in cost and very important for the supply and stability of the power grid. This why reasons keeping them well protected is of utmost importance.
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Transformer Protection
The power transformer is the most valuable asset in the substation and therefore rigorous protections schemes have been developed to both protect it and to keep the network up and running.
Step 4 of 10
Next
DER

DER Protection

This is some text inside of DER are connected into medium voltage levels in the network and the protection is rather basic. Self-powered relays are common which create unique test challenges. All together require a cost efficient but capable solution.​a div block.
DER

DER Protection

This is some text inside of DER are connected into medium voltage levels in the network and the protection is rather basic. Self-powered relays are common which create unique test challenges. All together require a cost efficient but capable solution.​a div block.
DER

DER Protection

This is some text inside of DER are connected into medium voltage levels in the network and the protection is rather basic. Self-powered relays are common which create unique test challenges. All together require a cost efficient but capable solution.​a div block.
DS

General Protection

In all parts of the network there are a few fundamental protection schemes which are used to protect the network. I.e. over current and over voltage.
DS

Digital Substation

IEC 61850 require specialized solutions to effectively verify that the digital substation is properly configurated. GOOSE and Sampled Values are closely related to protection testing
DER
DER protection

DER are connected into medium voltage levels in the network and the protection is rather basic. Self-powered relays are common which create unique test challenges. All together require a cost efficient but capable solution.​

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GP
General protection

In all parts of the network, there are a few fundamental protection schemes which are used to protect the network, i.e., overcurrent and overvoltage.

Learn More >
Check ProductRequest Quote
DS
Digital substation

IEC 61850 require specialized solutions to effectively verify that the digital substation is properly configurated. GOOSE and Sampled Values are closely related to protection testing.

Learn More >
Check ProductRequest Quote
PGP
Power generation protection

In large-scale generation stations, there are many aspects to consider when it comes to both protecting the assets and to ensuring a stable network, making the protection schemes rather complex.

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TP
Transformer protection

The power transformer is the most valuable asset in the substation and therefore rigorous protections schemes have been developed to both protect it but also to keep the network up and running.​

Learn More >
Check ProductRequest Quote

Digital Substation

Software, data communication and control, etc., is standard in modern substations. Though the development and implementation of IEC 61850 since mid 2000’s, the way to design, configure and run the substations have changed. This IT influence brings many advantages but also introduce new challenges to the industry.

Distributed energy resources

The power network is facing a huge change moving from centralized, large generation stations to smaller DER. Accurate communication leading to quick and correct decisions will be key in the development of the smart grid. The relay protection in DERs, like wind and solar farms, uses rather basic protection functions but their design creates other challenges when it comes to testing.

Special and advanced applications

Advanced relay testing refer to protection functions that isn’t straight forward parameters such as current, voltage or frequency. Even though that is exactly what is measured and calculated, the advanced protection category is either presented in another format, such as impedance for distance protection, or require complex test setup as transformer differential.

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Digital
Substation

Software, data communication and control, etc., is standard in modern substations. Though the development and implementation of IEC 61850 since mid 2000’s, the way to design, configure and run the substations have changed. This IT influence brings many advantages but also introduce new challenges to the industry.

Distributed
energy resources

The power network is facing a huge change moving from centralized, large generation stations to smaller DER. Accurate communication leading to quick and correct decisions will be key in the development of the smart grid. The relay protection in DERs, like wind and solar farms, uses rather basic protection functions but their design creates other challenges when it comes to testing.

Special & advanced applications

Advanced relay testing refer to protection functions that isn’t straight forward parameters such as current, voltage or frequency. Even though that is exactly what is measured and calculated, the advanced protection category is either presented in another format, such as impedance for distance protection, or require complex test setup as transformer differential.

Digitale Unterstation

In modernen digitalen Unterstationen sind die IEDs und Messwandler-Merging Units über Datennetzwerke verbunden. Die in diesen Netzwerken gesendeten Informationen folgen dem IEC 61850-Standard, einem internationalen Standard, zu dem Megger als Vordenker seit Ausgabe 1 beigetragen hat. IEC 61850-Netzwerke erfordern spezialisierte Lösungen, um effektiv zu überprüfen, ob die Unterstation richtig konfiguriert ist, und Megger hat dies getan bietet solche Lösungen seit 2009 an.
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Verteilte Energieressourcen

Das Stromnetz steht vor einem enormen Wandel von zentralisierten, großen Kraftwerken hin zu kleineren DERs (Distributed Energy Resources) wie Wind- und Solarparks. Mit zusätzlicher Kommunikation und Intelligenz sind die DERs Hauptkomponenten des Smart Grid. Der Relaisschutz in DERs erleichtert jedoch grundlegende Schutzfunktionen, aber ihr Design schafft andere Herausforderungen beim Testen.
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Erweiterte Anwendungen

Erweiterte Relaistests beziehen sich auf Schutzfunktionen, die keine einfachen Parameter sind, wie z. B. Strom, Spannung oder Frequenz. Auch wenn genau das gemessen und berechnet wird, wird die erweiterte Schutzklasse entweder in einem anderen Format dargestellt, wie z. B. als Impedanz für den Distanzschutz, oder erfordert einen komplexen Testaufbau als Transformatordifferential. Dedizierte Software für spezifische Anwendungen bietet die Gewissheit, dass komplexe Aufgaben einfacher ausgeführt werden können.
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Megger ist an Ihrer Seite, um alle Herausforderungen des Stromnetzes zu meistern

Da das Stromnetz ein Eckpfeiler der modernen Gesellschaft ist, ist die selektive, schnelle und zuverlässige Trennung im Fehlerfall unerlässlich. Der Zweck der Schutzrelaisausrüstung besteht darin, Fehlerzustände zu erfassen und Leistungsschalter auszulösen. Wenn ein Fehler nicht schnell getrennt wird, können Personenschäden und Schäden an Stromkreisen und Geräten mit erheblichen direkten und indirekten Kosten auftreten. Da diese Entscheidungen manchmal innerhalb einer Tausendstelsekunde getroffen werden müssen, ist es gleichzeitig notwendig, nur den fehlerhaften Teil des Netzwerks zu identifizieren und zu isolieren, um die Auswirkungen auf die Kunden zu minimieren.

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