Safe power supply monitoring system of building construction machinery

A technology for building construction and supervision systems, applied in electrical components, circuit devices, panel/switch station circuit devices, etc., can solve the problems of unreliable and unsafe grounding, and the switch box is not grounded, so as to improve safe operation efficiency and reduce Effects of Equipment and Personal Accidents

Inactive Publication Date: 2012-08-29
一开控股(青岛)有限公司
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Problems solved by technology

At present, there are many unsafe factors in the temporary power consumption on the construction site. The on-site switch box is not grounded or the grounding is unreliable, and even the protective grounding and the protective grounding are used in confusion. Some leakage circuit breakers in the three-level switch box fail.

Method used

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  • Safe power supply monitoring system of building construction machinery
  • Safe power supply monitoring system of building construction machinery
  • Safe power supply monitoring system of building construction machinery

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specific Embodiment

[0016] The main controller, the sub-controller and the switch controller of the present invention are mainly based on the high-integration 8-bit microcontroller AT89C52 of the MCS-51 structure as the basic control unit. See figure 2 In the circuit shown, the leakage current detection module, the protection zero connection and the protection grounding detection module, the grounding resistance detection module and the phase voltage balance detection module included in the total detection control module are tested in the following aspects:

[0017] 1) Leakage current detection module: figure 2 The TA5 shown is an electromagnet coil, which can drive the total leakage switch to be disconnected when there is leakage. Its input terminal is connected to the input port of AT89C52, so when K1 is closed, the current flowing through L is very small, which is not enough to cause the switch K1 to be disconnected. . When there is leakage in the line, the vector sum of the currents passi...

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Abstract

The invention relates to a safe power supply monitoring system of building construction machinery. The safe power supply monitoring system comprises a general distribution box detection device, branch distribution box detection devices and switch box detection devices, simultaneously has a wireless data remote transmission function, transmits acquired results to an outer computer in a wireless mode and monitors the potential safety hazards of three-level distribution boxes in real time by virtue of special software. By utilizing the safe power supply monitoring system, equipment and fatal accidents are reduced, and the safe operation efficiency is obviously improved.

Description

technical field [0001] The invention belongs to the technical field of construction machinery, and in particular relates to a safety power supply supervision system for construction machinery. Background technique [0002] At present, with the rapid development of engineering construction in my country, large-scale machinery such as tower cranes have been widely used in various engineering constructions. At present, there are many unsafe factors in the temporary electricity consumption at the construction site. The on-site switch box is not grounded or the grounding is unreliable, and even the protective grounding and the protection connection are used chaotically. Some three-level switch boxes in the leakage circuit breaker fail . Aiming at these safety drawbacks, it is urgent to develop a device to detect potential safety hazards such as protective grounding, zero-sequence current, and leakage current of the main distribution box and the three-level distribution box. SU...

Claims

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Application Information

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IPC IPC(8): H02B1/04H02B1/20H02B1/24H02J13/00
Inventor 刘超陈玉森
Owner 一开控股(青岛)有限公司
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