US 2016/0261106 A1Published application

Monitoring device and surge arrester system

AssigneeABB Technology AG

InventorHåkan Westerlund

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Abstract

A device for monitoring a surge arrester, including: a grounding line; a measuring unit including one or more analogue measuring circuits for measuring the electric current passing through the grounding line; an electronic processing unit for receiving measuring signals from the measuring circuits; a data storage medium for storing monitoring data produced by the processing unit; a base module, which accommodates the grounding line and the measuring unit; and an auxiliary module, which accommodates the processing unit and the data storage medium and is detachably mountable to the base module. When the auxiliary module is mounted to the base module, the components of the modules are connected to each other through a connector member provided on the base module and a corresponding connector member provided on the auxiliary module.

Claims15

Dependent claims

A monitoring device for monitoring a surge arrester connected to a power network, the monitoring device comprising:

a grounding line, which is configured to be electrically connected to ground and to the surge arrester so that an electric current flowing through the surge arrester will pass through this grounding line;
a measuring unit comprising one or more analogue measuring circuits for measuring the electric current passing through the grounding line and producing measuring signals related to the measured electric current;
an electronic processing unit for receiving said measuring signals from the measuring circuits of the measuring unit and producing monitoring data based on these measuring signals;
and
a data storage medium for storing monitoring data produced by the electronic processing unit,
characterized in:
that the monitoring device comprises a base module and an auxiliary module detachably mountable to the base module;
that the grounding line and the measuring unit are arranged in the base module;
that the electronic processing unit and the data storage medium are arranged in the auxiliary module;
that the base module comprises a first connector member, which is connected to the measuring unit;
and
that the auxiliary module comprises a second connector member, which is connected to the electronic processing unit, the second connector member being configured to be engaged with the first connector member when the auxiliary module is mounted to the base module to thereby allow the electronic processing unit to receive said measuring signals from the measuring unit via the first and second connector members.

9 more elements

A surge arrester system comprising a surge arrester connected to a power network, characterized in that the surge arrester system comprises a monitoring device comprising:

a grounding line, which is confirmed to be electrically connected to ground and to the surge arrester so that an electric current flowing through the surge arrester will pass through this grounding line;
a measuring unit comprising one or more analogue measuring circuits for measuring the electric current passing through the grounding line and producing measuring signals related to the measured electric current;
an electronic processing unit for receiving said measuring signals from the measuring circuits of the measuring unit and producing monitoring data based on these measuring signals;
and
a data storage medium for storing monitoring data produced by the electronic processing unit,
characterized in:
that the monitoring device comprises a base module and an auxiliary module detachably mountable to the base module;
that the grounding line and the measuring unit are arranged in the base module;
that the electronic processing unit and the data storage medium are arranged in the auxiliary module;
that the base module comprises a first connector member, which is connected to the measuring unit;
that the auxiliary module comprises a second connector member, which is connected to the electronic processing unit, the second connector member being configured to the engaged with the first connector member when the auxiliary module is mounted to the base module to thereby allow the electronic processing unit to receive said measuring signals from the measuring unit via the first and second connector members;
and
a first end of the grounding line included in the base module of the monitoring device being electrically connected to the surge arrester and an opposite second end of the grounding lines being electrically connected to ground so that an electric current flowing from the power network to ground via the surge arrester will pass through the grounding line.

10 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/028,826Filed 15 Oct 2013
Published: 8 Sep 2016
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

H02H 3/22
Responsive to excess voltage: of short duration, e.g. lightning
G01R 31/1236
Of components, parts or materials: of surge arresters
H02H 3/04
Details: with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned
H02H 9/042
Responsive to excess voltage: comprising means to limit the absorbed power or indicate damaged over-voltage protection device

Family

US 9,673,614 B2Related patent
US 2016/0261106 A1This patent

From the US filing history. Foreign family members aren’t listed.

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