PT merging unit sampling output conversion device

Abstract

The invention discloses a PT merging unit sampling output conversion device. The device comprises an outer box body, a shock pad is arranged at the bottom of the inner side of the outer box body, an inner box body is arranged on the inner side of the outer box body and located at the upper end of the shock pad, handles are fixedly installed on the two sides of the upper end of the inner box body,two upper covers are installed at the upper end of the outer box body through hinges, and handles are installed on the upper covers through screws. The device is reasonable in structural design; according to the PT merging unit sampling output conversion device, voltage parameter signals of digital PT merging units of different manufacturers and different configuration protocols can be converted into analog signals required by a same-frequency same-phase test; the conversion steps are simple, related parameters can be automatically extracted only by importing a configuration protocol providedby a PT merging unit manufacturer into the conversion device in a one-key mode, manual resetting is not needed, the device is very convenient to move when not used, use and move are convenient, and the use requirements can be well met.

Description

technical field [0001] The invention relates to a conversion device, in particular to a sampling output conversion device of a PT merging unit. Background technique [0002] The GIS same-frequency and same-phase AC withstand voltage test device is a new type of GIS equipment AC withstand voltage test device that creatively integrates the same-frequency and same-phase technology on the basis of the traditional sense-tuning series resonance test method. The device uses the PT to obtain the voltage signal on the operating bus as the test reference voltage signal, and through technologies such as phase-locked loop and linear push-pull amplification, the test device finally outputs a test voltage signal with the same frequency and phase as the operating voltage signal. When the GIS substation with double busbar connection is newly built or expanded after the AC withstand voltage test is carried out, the voltage that the isolation switch at the connection between the operating bus...

AI Technical Summary

Problems solved by technology

After the PT merging unit samples the analog signal output by the conventional transformer, it merges and processes with the digital output of the electronic transformer acquisition unit, and converts it into Ethernet data or "support channel can The configured extended IEC60044-8" FT3 data is output to the process layer network or related intelligent electronic equipment through optical fiber, which makes it impossible to directly obtain the analog signal to the test device with the same frequency and phase

The existing device is inconvenient to move and not easy to use

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