Non-contact voltage recording device, system and method

Abstract

The invention discloses a non-contact voltage recording device, system and method. The system comprises a conductor to be recorded, the non-contact voltage recording device, and a monitoring background. The non-contact voltage recording device arranged under the conductor to be recorded comprises a photoelectric sensing module used for obtaining an electric field intensity of the conductor to be recorded, a laser module, a signal acquiring and processing module for converting the electric field intensity to a voltage of the conductor to be recorded, and a wireless communication module for sending test data to the monitoring background. The photoelectric sensing module is respectively connected with the laser module and the signal acquiring and processing module through optical fibers, andthe signal acquiring and processing module is connected with the wireless communication module. The monitoring background comprises a server used for receiving, storing, and forwarding the data, and acomputer terminal for processing the test data. According to the non-contact voltage recording device, system and method, being in direct contact with the voltage measuring device and the power equipment is avoided, the lapping operation of the test personnel is omitted, so that the test efficiency and the safety are greatly improved, and the safety of the equipment to be recorded and the measuring personnel can be ensured.

Description

technical field [0001] The invention relates to a voltage measuring and recording system used for starting and debugging a substation, in particular to a non-contact voltage measuring and recording device and a measuring and recording system including the device. Background technique [0002] Before the new high-voltage substation and high-voltage transmission line are put into operation, in order to assess the insulation performance of the substation and the line, it is necessary to continuously open and close the transformer and transmission line through the circuit breaker to simulate the electromagnetic transient process of the system. During the test, the voltage signal of the transformer and the transmission line needs to be measured to reflect the multi-voltage situation during the operation and to assess the insulation condition. [0003] The existing voltage signal measurement system needs to be directly connected to the power equipment, including the following type...

AI Technical Summary

Problems solved by technology

Once there is a problem with the measurement equipment, it will directly threaten the safety of the power equipment under test, such as causing high-voltage conductor grounding, open circuit of the end screen, short circuit of voltage transformer, etc.

This voltage signal measurement method has a great impact on the safety of power equipment, and the wiring is very dangerous. For example, the capacitor voltage divider needs to be transported by a crane, and the terminal screen wiring of the transformer bushing needs to be climbed. potential risks

Images