Abstract
The paper considers and analyzes the use of new generation combined digital instrument transformers (DIT) with an optoelectronic conversion unit and a combining module or a stand-alone combining module, an external synchronization source or an internal clock generator and digital interfaces.
Highlights
The key element in the system for controlling the operating modes of electrical networks are primary instrument current and voltage transformers, which provide means of protection with measuring information, as well as measurements, accounting and registration of electricity flows in the power system [1].Electromagnetic transformers that are in operation and production have come a long way in their development and at this time are rather imperfect devices that have their drawbacks.They should be replaced by electronic transformers, which have great potential and operational capabilities: stability and compactness, reduction in the volume of wiring and an extended dynamic range, wide bandwidth and self-diagnostics, cost reduction, etc
Digital instrument transformers (DIT) - electronic instrument transformers with digital interfaces, supporting the protocol IEC 61850-9.2 [8]represent a new class of products based on the latest advances in optics, electronics, digital signal processing and transmission systems
An example of building a measuring system in a high-voltage substation using combined DITs is a solution, the functional diagram of which is shown below in fig. 12].The insulating columns are installed on support structures at the open switchgear (OSG) section of the electrical substation, with the primary current sensors located on the top of the column, and the primary voltage sensors located inside the cavity of the tubular insulator of the column
Summary
Angela Yusupova1,* BaysangurYusupov1 ,and Mayrbek Debiyev1. 1Grozny State Oil Technical University, Grozny, Russia. The paper considers and analyzes the use of new generation combined digital instrument transformers (DIT) with an optoelectronic conversion unit and a combining module or a stand-alone combining module, an external synchronization source or an internal clock generator and digital interfaces
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