An overhead line entry device
An overhead line and incoming line technology, applied in the field of mobile substations, can solve the problems of mutual attraction of cables, increased insulation distance, cable breakage, etc., and achieve the effect of increasing the spacing adjustment range, shortening the length, and increasing the spacing.
Active Publication Date: 2021-04-20
GUANGDONG POWER GRID CO LTD +1
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Problems solved by technology
However, under the condition of a higher voltage level, the insulation distance on the incoming line side also needs to be increased accordingly, and the large size of the bracket required by the high voltage level makes the transportation of the mobile substation difficult
[0004] For this reason, it is necessary to adjust the distance between the terminal blocks according to the change of the voltage, but when the distance between the terminal blocks is increased, the cables erected on the terminal blocks will be tightened with the increase of the distance between the terminal blocks, thus in The cable is prone to breakage, and the cable will loosen as the distance between the terminal blocks decreases, so that during the swing of the cable, it is easy to cause the adjacent cables to attract each other
Method used
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[0037] In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the following The described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0038] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.
[0039] In the description of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "upper", "...
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The invention discloses an overhead wire inlet device, which comprises a middle overhead pole erected on a mobile substation car, side bracket empty poles are respectively arranged on both sides of the middle overhead pole, and auxiliary adjustment poles are arranged close to the side bracket empty poles rod, the empty rod of the side bracket and the auxiliary adjustment rod are respectively installed on the mobile substation car through a rotating adjustment device; The clamping adjustment seat installed on the overhead line, after the overhead line is fixed by the terminal seat, the tension of the overhead line can be adjusted through the clamping adjustment seat, and the distance between the empty rod of the side bracket and the middle overhead rod can be adjusted by rotating the adjustment device , the overhead line is supported by the empty rod of the side support and the auxiliary adjustment rod set close to the empty rod of the side support, and the sag of the overhead line is adjusted by adjusting the distance between the empty rod of the side support and the auxiliary adjustment rod.
Description
technical field [0001] Embodiments of the present invention relate to the technical field of mobile substations, and in particular to an overhead line inlet device. Background technique [0002] Substations play a pivotal role in the operation of the power grid. Conventional substations are fixed, and their construction, installation and commissioning take a long time to complete. In reality, substations may be damaged due to various natural or human factors, resulting in paralysis of the power grid. In order to restore the functions of substations as soon as possible, in the prior art, mobile substations are often used to replace conventional substations to restore power supply to meet the needs of industry or life. use electricity. [0003] Patent No. CN1074464A provides a mobile substation, which includes a high-voltage substation car and a medium-voltage distribution car as a mobile platform. The high-voltage substation car is equipped with 110kV high-voltage combined ...
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IPC IPC(8): H02G1/04H02G7/02
CPCH02G1/04H02G7/02
Inventor 涂智豪苏华锋王锦堂江栩铄
Owner GUANGDONG POWER GRID CO LTD