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A voltage stabilizing protector for a power supply cabinet

A technology for protectors and power supply cabinets, applied in the direction of protection against overvoltage, protection against undervoltage or no voltage, emergency protection circuit devices, etc., which can solve the problem of electrical equipment damage and cannot effectively protect electrical equipment , circuit protection equipment is not perfect and other problems, to achieve the effect of ensuring safe operation

Inactive Publication Date: 2019-01-15
XIAN FUBANG TECH INDAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Overvoltage and undervoltage are easy to damage electrical equipment
However, the circuit protection equipment is not perfect at present, it cannot effectively protect the electrical equipment, and it cannot reliably cut off the power supply when overvoltage and undervoltage occur.

Method used

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  • A voltage stabilizing protector for a power supply cabinet

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Embodiment Construction

[0013] The present invention is described in further detail below in conjunction with accompanying drawing:

[0014] see figure 1 , The power supply cabinet voltage stabilizer protector of the present invention includes a rectification unit PART1, a monitoring unit PART2, a voltage stabilization reference unit PART3, a comparison unit PART4 and a protection unit PART5 connected in sequence. The rectifier unit PART1 transforms the alternating current into a direct current proportional to the supply voltage,

[0015] The monitoring unit PART2 is composed of a capacitor C3, a resistor R2, a potentiometer RA1, a potentiometer RA2, and a diode D6. The resistor R2, the potentiometer RA1 and the potentiometer RA2 are connected in series in sequence, the tap end of the potentiometer RA2 is grounded, and the resistor One end of R2 is connected to the high potential of the output end of the rectifier unit PART1, and one end of the potentiometer RA1 is connected to the low potential of ...

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PUM

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Abstract

The invention relates to a voltage stabilizing protector for a power supply cabinet, which is characterized in that the voltage stabilizing protector comprises a rectifying unit, a monitoring unit, avoltage stabilizing reference unit, a comparison unit and a protection unit connected in sequence. The voltage stabilizing protector of the power supply cabinet of the invention can be applied to bothindustrial and civil electric equipment, and can reliably cut off the power supply to protect the subsequent electric equipment at the time when the overvoltage and undervoltage occur, thereby ensuring the safe operation of the electric equipment under the adverse environment of industrial or civil power supply.

Description

technical field [0001] The invention belongs to the technical field of electrical protection, in particular to a voltage stabilizing protector for a power supply cabinet. Background technique [0002] In the prior art, many industrial and civil power supply environments are harsh. Overvoltage and undervoltage are easy to damage electrical equipment. However, the circuit protection equipment is still not perfect enough to effectively protect electrical equipment, and cannot reliably cut off the power supply when overvoltage or undervoltage occurs. [0003] The invention relates to a voltage stabilizing protector for an electronic power supply cabinet. The device can reliably cut off the power supply to protect subsequent electrical equipment when overvoltage and undervoltage occur. Contents of the invention [0004] The purpose of the present invention is to overcome the above-mentioned shortcomings of the prior art, and provide a voltage stabilizer protector for a power ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02H3/20H02H3/24
CPCH02H3/207H02H3/24
Inventor 杨德林
Owner XIAN FUBANG TECH INDAL