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Power distribution cabinet for electrical engineering machinery

A technology for construction machinery and power distribution cabinets, which is applied to electrical components, panel/switch station circuit devices, substation/switch layout details, etc., can solve problems such as limiting the use of electric construction machinery, achieve reliable completion of operations, and promote electrification Effect

Pending Publication Date: 2018-08-03
ZHUZHOU LINCE GRP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Electric construction machinery such as electric excavators have appeared in the world today, and the power distribution cabinet on it has only one working circuit, which limits the use of electric construction machinery in different working conditions

Method used

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  • Power distribution cabinet for electrical engineering machinery
  • Power distribution cabinet for electrical engineering machinery

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Embodiment Construction

[0022] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in various ways defined and covered by the claims.

[0023] The utility model relates to a power distribution cabinet for electric engineering machinery, which is used for connecting the electric engineering machinery with an external power supply and controlling the electric motor. Such as Figure 1-2 As shown, a cabinet body is included, and a cabinet body door is arranged on the cabinet body, and the cabinet body door is movably connected with the cabinet body. The inside of the cabinet is equipped with power isolation and short circuit protection devices, leakage protection devices, motor starting devices, motor speed regulating devices, motor protection devices, electrical control systems and electrical parameter acquisition and display components. The power isolation and short-circuit protection devic...

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Abstract

The invention provides a power distribution cabinet for electrical engineering machinery and belongs to the field of a power distribution cabinet. The power distribution cabinet is applied to connection and control of the electrical engineering machinery and an external power supply. The power distribution cabinet for the electrical engineering machinery comprises a cabinet body; an electric isolation and short-circuit protection device, an electrical leakage protection device, a motor starting device, a motor speed-regulating device, a motor protection device, an electrical control system, anelectrical parameter acquisition and display assembly, and an operation alarm indicating lamp are arranged in the cabinet body. The power distribution cabinet is provided with two electrical loops, can be directly and externally connected with an electric network source to realize operation of the electrical engineering machinery under the rated power supply frequency and also can be connected with an external variable-frequency power supply to realize variable-frequency speed-regulating operation of the electrical engineering machinery. The electrical leakage protection device, the motor protection device, the short-circuit protection device and the alarm device are arranged on the power distribution cabinet; when a failure occurs, the power supply can be cut off timely, and an alarm signal can be sent out.

Description

technical field [0001] The invention relates to the field of power distribution cabinets, in particular to a power distribution cabinet for electric engineering machinery. Background technique [0002] At present, most construction machinery and agricultural machinery are driven by fuel engines, which have the advantages of strong mobility and high cross-country performance. But at the same time, it has the defects of high engine noise, serious exhaust pollution, high use cost and high maintenance cost. With the country advocating the use of clean energy and the development of machinery-related technologies, construction machinery equipment using electricity as a power source has gradually become a development trend. Electric construction machinery such as electric excavators have appeared in the world today, and the power distribution cabinet on it has only one working circuit, which limits the use of electric construction machinery in different working conditions. Conte...

Claims

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Application Information

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IPC IPC(8): H02B1/32H02B1/24
CPCH02B1/24H02B1/32
Inventor 王文禹向宏伟王甫燕
Owner ZHUZHOU LINCE GRP
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