YuanXing offers Current Transformers for Relay Protection (Steady State) to fulfill the demanding performance requirements of monitoring and detecting malfunctioning systems. The relay protection current transformer is specifically designed to provide accurate current transformation during steady-state use, providing stable signals to protective relays and maintaining grid stability. All Relay protection current transformer is, as a component of switchgear or control systems, are built to be able to operate in the most stressful of environments with the utmost reliability for B2B manufacturers and utilities.
The construction of Relay protective current transformer incorporates a high-quality toroidal silicon steel or nickel alloy magnetic core, producing very low phase angle errors and superior magnetic linearity. The current transformer for protection relay is essential for all applications requiring extreme levels of accuracy over a broad dynamic range; it typically acts as the principal current transformers for Energy Management System (EMSs) protection relay devices. The enclosure is made from flame-proof PBT (UL94-V0 rated) plastic, and is encased in a high-quality epoxy, with an insulation resistance of 1000 MΩ at 500V DC and an isolation voltage of 2500V AC for one (1) minute. These properties of current transformer for relay protection guarantee that it will function safely throughout the normal operational frequency range of 50-400 Hz.
YuanXing’s protection current transformer conform to the IEC 61869-2 specification and are available with accuracy classes of 0.5 or 1.0. A significant technical feature of the relay protection current transformer is that it can effectively deal with overloads; for example, the TA2321 has a maximum composite error of ≤5% even at 2 to 20 times the rated primary current, allowing the current transformer for protection relay to operate correctly before transients saturate. In addition to being able to handle the overloads, the protective current transformer comes in over 50 different standard sizes—and with both symmetrical and non-symmetrical mounting patterns—making it easy to integrate into PCBs or chassis. As such, these protection current transformers are excellent solutions for B2B companies interested in low-cost/high-performance protection current transformer for relay protection, with the added benefit of guaranteed long-term operational stability.
