With precise signal acquisition and intelligent protection, Fengda instrument transformers provide reliable data support and safety assurance for grid operation.
As one of the three core components of power systems, instrument transformers serve as key equipment for the acquisition and conversion of voltage and current signals. Known as the “eyes and ears” of the power grid, they are an essential pillar for intelligent grid operation. Providing accurate and reliable data support for the full-process operation of power system metering, protection, control, and monitoring, instrument transformers are indispensable supporting equipment for the safe and intelligent operation of power grids.
The core value of instrument transformers is embodied in three major capabilities. First, signal conversion and electrical isolation. They convert high voltage and large current in power grids into standard low-voltage and low-current signals in a standardized proportion for equipment application. Meanwhile, they achieve effective electrical isolation between high and low-voltage circuits, eliminating potential high-voltage risks at the source and fully ensuring the safety of on-site personnel and power equipment. Second, precise metering and real-time monitoring. Supplying standardized signals for electric energy meters and voltage and current monitoring devices, the transformers accurately collect and calculate core grid parameters including voltage, current, power, and electric energy, realizing real-time monitoring and precise metering of power operation data and guaranteeing the authenticity and validity of grid operation and maintenance data. Third, system protection and intelligent control. They transmit real-time grid voltage and current data to relay protection devices. In the event of grid faults such as short circuits, overcurrent, and overvoltage, the transformers quickly transmit abnormal signals to trigger protection actions, cut off faulty circuits in a timely manner, prevent fault escalation, and maintain the overall operational stability of the power grid.
Instrument transformers are applicable to full-scenario power applications, covering all voltage levels and multi-industry operating conditions. In high and ultra-high voltage substations, electromagnetic and electronic optical instrument transformers are widely deployed at key positions such as main transformers, outgoing lines, and busbars, supporting the integrated operation of substation metering, monitoring, and protection. In medium-voltage distribution systems, indoor instrument transformers dedicated to 10kV-35kV switchgears and ring main units adapt to various feeder, busbar, and transformer circuits, fully meeting the daily operation, maintenance, and protection requirements of medium-voltage distribution networks. In the new energy and industrial fields, special transformers for wind power and photovoltaic grid-connected box-type substations, as well as products customized for harsh working conditions such as metallurgy and mining, stably cope with complex operating environments featuring high harmonics and drastic load fluctuations, satisfying diversified and high-demand distribution scenarios.
With the rapid upgrading and iteration of smart grids, electronic instrument transformers have achieved large-scale industry adoption by virtue of their high precision, high stability, and excellent compatibility with intelligent systems. Focused on the supporting field of instrument transformers, Fengda Power keeps pace with the technological development trends of smart grids. We concentrate on the integration of high-quality and highly adaptable instrument transformer product solutions, covering full-scenario demands including high-voltage transmission and transformation, medium-voltage distribution, new energy grid connection, and industrial mining applications. We continuously empower the upgrading of smart grid perception capability and the safe and efficient operation of modern power systems.
