Monitoring arrangement and method for monitoring a surge
AssigneeHitachi Energy Ltd
InventorsElisabeth Lindell, Stefan Halen
Life of this patent
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Abstract
A monitoring arrangement for monitoring a surge through a surge arrester, the surge arrester being adapted to be connected to a power network in order to protect an electrical equipment of the power network against incoming surges passing through the surge arrester. The monitoring arrangement detects a reignition surge, which reignition surge has been occasioned by a switching of a circuit breaker. The monitoring arrangement further calculates the number of detected reignition surges.
Claims15
A monitoring arrangement for monitoring a surge through a surge arrester, said surge arrester being adapted to be connected to a power network in order to protect an electrical equipment of the power network against incoming surges passing through the surge arrester, wherein the monitoring arrangement is adapted to:
- detect a reignition surge, which reignition surge has been occasioned by a switching of a circuit breaker.
A method performed by a monitoring arrangement for monitoring a surge through a surge arrester, said surge arrester being connected to a power network in order to protect an electrical equipment of the power network against incoming surges passing through the surge arrester, the method comprising:
- detecting a reignition surge, which reignition surge has been occasioned by a switching of a circuit breaker.
Dependencies are inferred from the claim text.