Non-contact voltage and current integrated acquisition and analysis system

Abstract

The invention discloses a non-contact voltage and current integrated acquisition and analysis system, which is characterized by comprising three integrated acquisition devices which are respectively matched with three-phase wires of a power supply line, and a power utilization analysis host which is connected with the three integrated acquisition devices, the current and voltage sensor is used for collecting current and voltage information on the wire and at least comprises a working winding and an induction electrode; and the power utilization analysis host is connected with the three integrated acquisition devices, receives the voltage and current data acquired by the three integrated acquisition devices, performs analysis and calculation to obtain corresponding voltage values and current values, and displays the voltage values and the current values on the display screen. According to the invention, one acquisition device can be adopted to carry out non-contact sampling, analysis and display on the voltage and current of the tested wire, the operation is convenient, the efficiency is improved, and the device is safe and reliable.

Description

Technical field [0001] The invention involves the field of electronic measurement technology, and specially involves a voltage -current integration non -contact collection analysis system. Background technique [0002] With the advancement and development of the information age, people's lives and enterprises are increasingly inseparable. The issue of people's livelihood is increasingly valued, and the requirements of residents' living electricity have gradually increased. The electricity usage is changed, and the number of people using electricity is also increasing and changing. The low efficiency of electricity affects the income of the enterprise and affects the quality of people's lives. Therefore, there are many difficulties in the process of electricity inspection. It is important to give effective and reasonable solutions to this status quo. [0003] In the inspection work of electricity, there are two major operating problems in the test of equipment or measurement. One ...

AI Technical Summary

Problems solved by technology

[0003] In the inspection of electricity consumption, there are two major operational problems in the detection of equipment or metering operating conditions. One is that opening the seal of the metering device for contact measurement may destroy the evidence of electricity theft and affect the validity of the evidence; the other is that public line voltage measurement requires There will be a certain risk of electric shock if there is a puncture contact with the wire

In the voltage monitoring of the low-voltage distribution network, the voltage of the power line is high and the voltage range is wide. When using the contact measurement method, the external insulation layer must be destroyed to contact the internal wires for measurement. The power consumption analysis host only uses transformers or isolation chips. Isolation, there is electrical contact between the power supply under test and the measuring device. In some high-voltage situations, if the operation is wrong, it will cause damage to the equipment on the circuit under test and the tester; in the process of destroying the insulation layer, the power must be cut off to ensure operation The safety of personnel, power outage installation will also lead to power outages for users, which will bring inconvenience to construction deployment, and the insulation layer of the transmission line - once damaged, the transmission line will lose its integrity, forming a safety hazard, and other inconvenient damage to the insulation layer For cable line nodes, if the contact measurement method is used, the voltage value cannot be obtained effectively, and a separate current transformer needs to be used to obtain the current value, and the voltage and current cannot be obtained at the same time by only one sensor. The operation process of the method is cumbersome, the construction is difficult and the efficiency is low

Images