Improved medium voltage switching apparatus
A switchgear, medium-voltage technology, applied in the direction of high-voltage/high-current switches, electric switches, air switch components, etc., can solve the problems of high industrial cost and installation cost
Active Publication Date: 2020-12-22
ABB (SCHWEIZ) AG
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Problems solved by technology
[0007] Obviously, this method requires relatively high industrial and installation costs
Method used
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[0041] Referring to the figures, the present invention relates to medium voltage (MV) switchgear 1 .
[0042] In principle, the MV switchgear 1 may be of any type suitable for installation in an electrical network, such as a circuit breaker, isolator, contactor or other device of similar type.
[0043] Preferably, as shown in the cited figures, the switchgear 1 is of the vacuum operated type.
[0044] However, according to alternative embodiments (not shown), the switchgear 1 may be of the air-insulated or gas-insulated type.
[0045] According to a general definition, the switchgear 1 comprises a pole part 11 and a base 12, which respectively comprise the pole 2 and the main actuating part 5, 6 of the switchgear.
[0046] refer to Figure 1-Figure 3 In the normal installation position of the switchgear 1 shown in , the pole part 11 overlaps the base 12 .
[0047] Conveniently, the switchgear 1 comprises an outer frame 10 which may be at least partially made of an electrical...
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The invention relates to a medium voltage switching apparatus. The medium voltage switching apparatus comprises: one or more electric poles, each electrically coupleable with a corresponding electricline; for each electric pole, a fixed contact and a movable contact, said movable contact being reversibly movable between a decoupled position from said fixed contact and a coupled position with saidfixed contact, said movable contact moving from said decoupled position to said coupled position during an closing manoeuvre of the switching apparatus and moving from said coupled position to said decoupled position during an opening manoeuvre of the switching apparatus; actuating means adapted to actuate the movable contacts of said one or more electric poles. The switching apparatus is operatively coupled with or comprises a control unit to control said actuating means.Said control unit comprises a plurality of input arrangements, at which said control unit can receive input signals provided by one or more devices operatively coupled with or included in said control unit.Said control unit is adapted to carry out a plurality of selectable control routines to control said actuating meansduring a manoeuvre of said switching apparatus. Said control unit is adapted to select and carry out a selectable control routine in response to receiving an input signal at an input arrangement corresponding to said selectable routine.
Description
technical field [0001] The invention relates to the field of switchgear for medium voltage power systems such as distribution networks or switchboards. Background technique [0002] For the purposes of this application, the term "medium voltage" (MV) relates to operating voltages at distribution levels, above 1 kVAC and 2 kV DC, up to tens of kV, eg up to 72 kV AC and 100 kV DC. [0003] MV power systems typically include switchgear such as circuit breakers, isolators, contactors, and the like. [0004] In MV power systems, switchgear is currently adapted to perform load management functions (such as carrying and breaking current to energize or de-energize electrical loads under normal circuit conditions, including overload conditions) or protection functions (such as conditions (e.g. cut off the current during short circuit conditions). [0005] Today, switchgear designed to perform a given type of function often exhibits unsatisfactory performance when required to perfor...
Claims
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IPC IPC(8): H01H3/26H01H31/02
CPCH01H3/26H01H31/02H01H33/666H01H9/563H02B11/02H02H3/021
Inventor C·博费利A·比安科R·彭佐C·罗伊贝尔F·马尼诺E·林德尔S·海伦
Owner ABB (SCHWEIZ) AG