Direct current system intelligent comprehensive relay

A DC system, DC power system technology, applied in electrical components, circuit devices, emergency protection circuit devices, etc., can solve problems such as poor performance, large size, and complicated wiring.

Inactive Publication Date: 2012-04-18
河南中科蓝森智能电气有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problems of the system composed of the above components are: many components, large volume, complicated wiring, unintuitive and inaccurate detection and dead angle, inconvenient adjustment, poor performance and poor reliability

Method used

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  • Direct current system intelligent comprehensive relay
  • Direct current system intelligent comprehensive relay
  • Direct current system intelligent comprehensive relay

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Embodiment Construction

[0020] Such as figure 1 Shown, the present invention is a kind of direct current system intelligent comprehensive relay that carries out undervoltage detection, insulation detection, flashing signal output and sound and light alarm and alarm output in the DC power supply system of electric power industry, comprises single-chip micro-controller, in single-chip An isolation circuit is connected to the input end of the microcontroller, an A / D conversion circuit is connected to the input end of the isolation circuit, and a DC system voltage detection circuit and a DC system insulation detection circuit are connected to the input end of the A / D conversion circuit ; On the input end of the single-chip micro-controller, also be connected with operation keyboard circuit, flashing test circuit, flashing detection circuit and control power supply circuit; On the input-output end of single-chip micro-controller, be connected with EEPROM power monitoring circuit; In the single-chip micro-c...

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Abstract

The invention relates to a direct current system intelligent comprehensive relay for conducting over / under-voltage detection, insulation detection, flash signal output, sound and light alarm and alarmoutput in a direct current supply system of power industry. The input end of a singlechip microcontroller is connected with an isolating circuit of which the input end is connected with an A / D converting circuit, and the input end of the A / D converting circuit is connected with a direct current system voltage detection circuit and a direct current system insulation detection circuit. The input end of the singlechip microcontroller is connected with an operating keyboard circuit, a flash testing circuit, a flashing detection circuit and a control supply circuit. The input end and output end ofthe singlechip microcontroller are connected with an EEPROM power supply monitoring circuit; and the output end of the singlechip microcontroller is connected with a Chinese character liquid crystaldisplay circuit, a flash output circuit and a sound and light alarm output circuit. The relay has the advantages of effectively reducing fault rate, simplifying the control circuit, cutting down the electric cost of the electric direct current system, decreasing the space occupied by electric components and improving the electric property and power distribution reliability.

Description

technical field [0001] The invention relates to a direct current system intelligent comprehensive relay for performing overvoltage and undervoltage detection, insulation detection, flash signal output, sound and light alarm and alarm output in a direct current power supply system in the electric power industry. Background technique [0002] At present, components such as DC overvoltage and undervoltage relays, insulation inspection relays, flashing relays, flashing test lights and buttons, voltmeters, combined switches, and fault alarm devices are widely used in the DC power supply system of the power industry to ensure the reliability of the DC system. And provide flash bus output. The problems of the system composed of the above components are: many components, large volume, complicated wiring, unintuitive and inaccurate detection and dead angle, inconvenient adjustment, poor performance and poor reliability. Contents of the invention [0003] The purpose of the present...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02H3/04H02H3/12
Inventor 李法武张立柱文敏吴志威付慧灵
Owner 河南中科蓝森智能电气有限公司
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