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Technical

All the technical documents for the SVERKER900

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SVERKER900 - Testing-ROCOF-protection
Rate Of Change Of Frequency (ROCOF) protection is used in distributed or embedded generation schemes, where a local generator is connected directly to the distribution network, as specified in national standards such as Ansi 81R or G59/3
Publié : 15 mai 2019
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SVERKER900 - Testing ABB Trip Circuit Supervision relay
Check trip on relay with ABB supervision relay
Publié : 15 mai 2019
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SVERKER900 - Testing impedance based protection
The impedance measurement schemes are widely used for protection of different assets within electric power systems. Relay protection devices utilizing such schemes are benefiting from continuous monitoring of both voltage and current quantities within the protected circuit and the calculated impedance value is employed to determine whether the circuit is operating in a normal condition or not.
Publié : 15 mai 2019
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SVERKER900 - Testing negative sequence overcurrent protection
Unbalance phase currents in a power system that exceed the allowable normal operation limit can indicate abnormal condition or even existence of fault(s) in the system. The operating principal unbalance over current protection is normally based on measurement of negative sequence component of unbalance phase currents. Similar to phase over current protection, normally a pick up (start) threshold and a definite time delay for operation can be set.
Publié : 15 mai 2019
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SVERKER900 Demo Testing
To be used as demonstration/course material
Publié : 15 mai 2019
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SVERKER900 - Testing directional earth fault
Directional earth fault protection are commonly used to protect long outgoing feeders from tripping because of fault on other outgoing lines.
Publié : 15 mai 2019
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