Insulation, voltage, grounding test and grounding finding device and use method thereof

Abstract

The invention discloses an insulation test, grounding finding device and a method for evaluating insulation aging conditions and remaining lives of insulation of lines and electrical devices by adopting the principle of absorption by using the device. The insulated grounding test and grounding finding device comprises a host machine and a signal receiver. The signal receiver is used for receiving the detected signals and the host machine comprises a CPU, a power supply unit, a high voltage unit, an insulation / voltage test unit, a grounding test unit, a grounding finding unit, a reset unit, a storage unit, an input / output unit and a communication unit; the usage method of insulation, voltage, grounding test and grounding finding device; and a method for evaluating insulation aging conditions and remaining lives of insulation of lines and electrical devices by adopting the principle of absorption by using the device.

Description

technical field [0001] The invention relates to an insulation test and grounding search device and method, belonging to the technical field of detection. Background technique [0002] With the rapid development of my country's national economy, the three high-tech technologies of energy, information and materials that lead economic development have been increasingly widely used in various industries. Electrical and electronic circuits are widely used in various industries and all aspects of people's lives. As automation systems and electrified equipment, electrical and communication lines that transmit information and energy are increasingly complex, and due to the complexity of their work, electrical and communication lines have become the most critical and weakest link in automation systems and electrified equipment. First of all, due to wear and aging, there are many cases where line insulation is reduced and grounding roadblocks cause major accidents and economic losses...

AI Technical Summary

Problems solved by technology

Third, due to the increasingly complex lines, when insulation and grounding faults occur, it is extremely important to quickly find the fault point and eliminate the fault without affecting the normal operation of other equipment in the system, so as to minimize the downtime of the entire system. difficult

[0003] Due to the restriction of the current technical diagnosis level, at present, the electrical and communication line insulation grounding test and grounding fault finding in our country are megger and multimeter and single-function DC Method-based insulation and grounding test instruments, etc., the traditional detection methods have obvious defects: 1. The test results have large errors and are susceptible to interference

2. It is difficult to manage insulation aging data and form historical trend analysis

3. Since the insulation resistance of new equipment and equipment with severe insulation aging is often the same, insulation resistance cannot be used as a criterion for insulation aging conditions, and it is difficult to evaluate the insulation aging conditions and remaining insulation life of lines and electrical equipment

This search method is time-consuming and laborious. For some large-scale systems, it takes several days or even weeks to search, which seriously affects the normal operation of the equipment and causes major economic losses.

5. The ground search takes a long time and costs a lot

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