CYFZD intelligent low voltage switch cabinet

Abstract

The invention discloses a CYFZD intelligent low voltage switch cabinet comprising an intelligent monitor with a standard communication interface and a photoelectric converter, wherein a power source is connected to an isolating switch which is connected to an air switch QF with an electric operating mechanism; the air switch QF with the electric operating mechanism is connected to an alternating-current contactor which is connected to the intelligent monitor with the standard communication interface; the intelligent monitor with the standard communication interface is connected to a field motor through three-phase circuit feed-out; the intelligent monitor with the standard communication interface is further connected to a serial port server which is connected to the photoelectric converter; the photoelectric converter is connected to a cabinet switchboard; and the cabinet switchboard is connected to an upper computer. Such a design is capable of realizing the remote / local opening function of each feed-out main loop circuit breaker in the cabinet and also capable of remotely transmitting and recording field operational state information such as line alarm, fault determination, action results and the like; and the CYFZD intelligent low voltage switch cabinet has the control management function of the remote power stop / supply operation flow.

Description

technical field [0001] The invention relates to a low-voltage switch cabinet, in particular to an intelligent low-voltage switch cabinet. Background technique [0002] With the development of modern industrial technology and the wide application of microprocessor technology, higher requirements have been put forward for the reliability of low-voltage power distribution system operation and its intelligent and automatic management, which has led to the rapid development of intelligent low-voltage electrical components. Traditional The configuration of the electrical circuit has undergone tremendous changes over time. For example, on-site intelligent monitoring devices integrating monitoring and comprehensive protection have been widely used in the circuit instead of single-function thermal overload relays. Large-scale power plants, petrochemical, telecommunication systems and other places with a high degree of automation have realized remote transmission and control of data t...

AI Technical Summary

Problems solved by technology

Although most of the traditional low-voltage switchgear has high breaking capacity, good dynamic and thermal stability, advanced and reasonable structure, flexible electrical scheme, series, strong versatility, arbitrary combination of various scheme units and the number of circuits accommodated by one cabinet It has the advantages of more space saving, high protection level, safety and reliability, and convenient maintenance, but there are still the following problems: 1. The remote / local breaking function of each feed-out main circuit breaker in the cabinet cannot be realized

2. It is impossible to realize the remote acquisition of the operating parameters of each distribution circuit of the low-voltage distribution system

3. It is impossible to remotely transmit and automatically record on-site operating status information such as line alarms, fault judgments, and action results

4. It does not have the control and management function to realize the remote power off and power transmission operation process, the system operation control work efficiency is low, and the labor intensity is high

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