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Technical

All the technical documents for the SVERKER900

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SVERKER900 - Testing ABB Trip Circuit Supervision relay
Check trip on relay with ABB supervision relay
Published: 15 May 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.
Published: 15 May 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.
Published: 15 May 2019
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