Simulation detector of power grid

Abstract

The invention discloses a simulation detector of a power grid, aiming at providing a simulation detector of a power grid which can completely detect the wiring conditions of a voltage / current transformer, the wiring conditions of a relay protection system, the measurement errors of an electric power measurement system, the accuracy of the voltage / current transformer, and the electric power parameters of each measuring point under the condition of simulating synchronization. The invention comprises the simulation detector (2) for performing simulation detection on the electric power measurement system and / or the relay protection system (1), wherein the simulation detector (2) comprises a simulation power supply (21), a field measuring instrument (22) and a control device (23); the simulation power supply (21) is connected to a voltage current input end in the electric power measurement system and / or the relay protection system (1); and the field measuring instrument (22) is respectively connected with the measuring port of the control device (23) and the measuring port of the electric power measurement system and / or the relay protection system (1).

Description

technical field [0001] The invention relates to a network simulation detection device, which is used for simulation detection of a power metering system and / or a relay protection system. Background technique [0002] To meet the needs of the country's economic development, power grid automation transformation has been fully rolled out in various power grid companies. The core of power grid automation transformation is the automatic control and relay protection of the user's power consumption system, and the automatic collection, storage and upload of power consumption information. At the input stage of the power system, the voltage is very high, such as 10 kV, 35 kV, 110 kV, etc. Generally, users use transformers to obtain the voltage they need. However, if the power department wants to measure the user's electricity consumption information, it must sample at the front end of the transformer, and the voltage here is very high, and it is difficult to connect with ordinary mea...

AI Technical Summary

Problems solved by technology

However, this inspection method cannot conduct a comprehensive inspection of the entire system, because it is a functional inspection without input, and it is impossible to obtain the electrical parameters of each key point under normal use.

[0003] To sum up, the current existing technology lacks a comprehensive detection of voltage / current transformer wiring status, relay protection system wiring status, measurement error of power metering system, and accuracy of voltage and current transformers without grid connection. , the power parameters of each measurement point and the function and response time of the relay protection system and the power grid simulation detection device

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