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US 10,937,604 B2Granted
Switching device for a MV electric power distribution network
AssigneeABB Schweiz AG
InventorsLeandro Vacirca, Angelo Cleber, Luciano Di Maìo
Life of this patent
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Abstract
The invention relates to a switching device for a MV electric power distribution network. The switching device comprises electric contacts, which are electrically connectable to a conductor of said electric power distribution network, and a control unit. The switching device comprises signalling means emitting visible light externally to said switching device, said signalling means being controlled by said control unit.
Claims10
A switching device for a medium voltage (MV) electric power distribution network, said switching device comprising:
- electric contacts electrically connectable to a conductor of said electric power distribution network;
- a conductive casing structured to enclose a control unit for managing the operation of said switching device including manoeuvring the electric contacts, said control unit comprises a digital processing device and a memory;
- and
- an accessory module including an outer housing structured to enclose a signalling means operatively connected to said control unit, said signalling means comprising a light source adapted to emit visible light observable externally to said switching device through an optical lens of the outer housing, the outer housing including a passing cavity through which the conductive casing is positioned, the outer housing including a first portion having a first outer radius and a second portion having a second outer radius, the first outer radius being greater than the second outer radius, the first portion including an end including the optical lens, the optical lens being positioned to emit the visible light in a direction parallel with the passing cavity,
- wherein said control unit is configured to control the light source to emit first pulsed light signals using duty cycles of first control signals, each duty cycle being configured to provide coded information indicative of corresponding first operating conditions of said switching device during a start-up functioning of said switching device, and
- wherein said control unit is configured to control the light source to emit second pulsed light signals using time distributions of second control signals, each time distribution being configured to provide coded information indicative of corresponding second operating conditions of said switching device during a normal functioning of said switching device.
3 more elements
A switching device for a medium voltage (MV) electric power distribution network, said switching device comprising:
- electric contacts electrically connectable to a conductor of said electric power distribution network;
- a conductive casing structured to enclose a control unit for managing the operation of said switching device including manoeuvring the electric contacts, said control unit comprises a digital processing device and a memory;
- and
- an accessory module including an outer housing structured to enclose a signalling means operatively connected to said control unit, said signalling means comprising a light source adapted to emit visible light observable externally to said switching device through an optical lens of the outer housing, the outer housing including a passing cavity through which the conductive casing is positioned, the outer housing including a first portion having a first outer radius and a second portion having a second outer radius, the first outer radius being greater than the second outer radius, the optical lens being positioned to emit the visible light in a direction parallel with the passing cavity from an end of the first portion,
- wherein the control unit is configured to determine first operating conditions of said switching device during a start-up functioning of said switching device, the first operation conditions including a plurality of typologies of faults occurring during the start-up functioning of said switching device,
- wherein said control unit is configured to control the light source to emit first pulsed light signals using first time distributions of first control signals, each first time distribution being configured to provide coded information indicative of the corresponding first operating condition,
- wherein the control unit is configured to determine second operating conditions of said switching device during a normal functioning of said switching device including a manoeuvring of the switching device or electric power balance across a line branch of the MV electric power distribution network, and
- wherein said control unit is configured to control the light source to emit second pulsed light signals using second time distributions of second control signals, each second time distribution being configured to provide coded information indicative of the corresponding second operating condition.
5 more elements
Dependencies are inferred from the claim text.